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Journal articles on the topic 'Nutrient film technique'

Author: Grafiati

Published: 4 June 2021

Last updated: 10 February 2022

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1

Wibisono, Vicky, and Yudi Kristyawan. "An Efficient Technique for Automation of The NFT (Nutrient Film Technique) Hydroponic System Using Arduino." International Journal of Artificial Intelligence & Robotics (IJAIR) 3, no. 1 (May 31, 2021): 44–49. http://dx.doi.org/10.25139/ijair.v3i1.3209.

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Hydroponic Nutrient Film Technique (NFT) is most widely applied on a home and industrial scale. One of the drawbacks of the NFT hydroponic system is that it is very dependent on electricity for 24 hours to power the water pump. The basic principle of the NFT hydroponic system is to flow nutrients to plant roots with a shallow and circulating nutrient layer so that plants get enough water, nutrients, and oxygen. Therefore, the role of the water pump in the hydroponic NFT system is crucial. This research makes the automation of the NFT hydroponic system more efficient using Arduino. There are two main parts to this automation system: the control of pH levels and nutrient distribution. The pH sensor is used to control the pH level of nutrients, and the ultrasonic sensor is used for nutrient distribution. Efficiency is emphasized more on the distribution of nutrients because it absorbs more electrical energy. The method used is to flow the nutrients in the reservoir to a storage tank that is located higher than the plant using a water pump with a large discharge. Nutrients are transported to each plant using the force of gravity. The nutrient volume is controlled automatically using an ultrasonic sensor in the storage tank. The water pump is only activated by the ultrasonic sensor readings on the storage tank. So that the need for electricity to turn on the water pump is reduced, based on tests carried out on the use of a 220-volt AC / 50 Hz / 125-watt water pump and the use of a 250-liter nutrient storage tank, it can be concluded that the system that has been created can save 70% of electricity consumption.

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2

Burrage, S. W. "NUTRIENT FILM TECHNIQUE IN PROTECTED CULTIVATION." Acta Horticulturae, no. 323 (February 1993): 23–38. http://dx.doi.org/10.17660/actahortic.1993.323.1.

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3

Mortley, D. G., C. K. Bonsi, J. H. Hill, and W. A. Hill. "NUTRIENT MANAGEMENT OF SWEETPOTATO GROWN IN NUTRIENT FILM TECHNIQUE." Acta Horticulturae, no. 548 (March 2001): 567–74. http://dx.doi.org/10.17660/actahortic.2001.548.70.

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4

Silva, Marina Galdez de Castro, Cristina Moll Hüther, Bruno Bernardo Ramos, Patrícia da Silva Araújo, Leonardo da Silva Hamacher, and Carlos Rodrigues Pereira. "GLOBAL OVERVIEW OF HYDROPONICS: NUTRIENT FILM TECHNIQUE." Revista Engenharia na Agricultura - Reveng 29 (August 5, 2021): 138–45. http://dx.doi.org/10.13083/reveng.v29i1.11679.

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Hydroponics is a cultivation technique without soil. There are several modalities for the system and among them is the Nutrient Film Technique (NFT), which consists of using channels to circulate a nutrient solution intermittently. Due to the existence of risks of soil and water contamination in metropolitan areas, hydroponics is a potential alternative to conventional production. Therefore, the present work sought to verify the current study of knowledge of the NFT hydroponic system in the international literature and the performance of the countries on it. For this, a bibliographic survey was carried out from 2010 to 2019 on the international research bases Science Direct, Portal de Periódicos da Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) and Scielo using the search terms “Hydroponics” and “Nutrient Film Technique Hydroponics”. An increase in the number of studies was observed in the last four years of the analyzed period, that is, from 2016 to 2019, thus representing an increase in interest in hydroponics, especially the NFT type. This increase may be related to the efficiency and ease of handling this model, gains in productivity and the potential that this technique has for reducing the carbon footprint. Thus, Nutrient Film Technique is of great value in urban agriculture, especially in Brazil – its greatest representative –, with the potential to grow a lot in the future, due to its numerous benefits.

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5

de Kreij, C., and H. Başar. "Effect of humic substances in nutrient film technique on nutrient uptake." Journal of Plant Nutrition 18, no. 4 (April 1995): 793–802. http://dx.doi.org/10.1080/01904169509364938.

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6

Mackowiak, C. L., R. M. Wheeler, G. W. Stutte, and N. C. Yorio. "Peanut Production using Recirculating Nutrient Film Technique (NFT)." HortScience 30, no. 4 (July 1995): 810E—810. http://dx.doi.org/10.21273/hortsci.30.4.810e.

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As part of NASA's effort with bioregenerative life support systems, the growth of candidate crops is being investigated in controlled environments. Peanut (Arachis hypogaea L.) was selected for the high oil and protein content of its seed. Peanut cvs. Pronto and Early Bunch were grown from seed, using recirculating nutrient film technique (NFT) in 6-cm-deep, trapazoidal culture trays. The trays were fitted with slotted covers, which allowed developing pegs to reach the root zone. Use of a separate moss-filled pegging compartment above the root zone (tray within a tray) had little effect on seed yield, but resulted in a 60% increase in the nitric acid requirements for pH control. Yields from both cultivars were equivalent to field values on an area basis; however, harvest indices were lower than field values due to the luxuriant canopy growth under controlled environment conditions. Proximate analysis of seeds was similar to field values, with the exception of fat, which was ≈15% lower, and ash, which was ≈30% greater under controlled environment conditions, regardless of cultivar.

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7

Ibrahim, Muhammad Naufal Rauf, Mohamad Solahudin, and Slamet Widodo. "Control System for Nutrient Solution of Nutrient Film Technique Using Fuzzy Logic." TELKOMNIKA (Telecommunication Computing Electronics and Control) 13, no. 4 (December 1, 2015): 1281. http://dx.doi.org/10.12928/telkomnika.v13i4.2113.

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8

Sumarni, Eni, Loekas Soesanto, Noor Farid, and Hanif Nasiatul Baroroh. "PERTUMBUHAN DAN PERKEMBANGAN TANAMAN PURWOCENG PADA BUDIDAYA SECARA HIDROPONIK NUTRIENT FILM TECHNIQUE (NFT)." Jurnal Litbang Provinsi Jawa Tengah 15, no. 2 (December 1, 2017): 145–51. http://dx.doi.org/10.36762/litbangjateng.v15i2.410.

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Purwoceng sustainability is done in order to optimize its sustainable use. Therefore it is necessary to planting Purwoceng in a controlled and planned manner. Hydroponics is one of the alternative cultivation techniques for crop production without using soil, so it can be done in areas that are difficult to cultivate. Nutrient Film Technique (NFT) is one of the hydroponic techniques of water culture. The nutrients and water are administered to the plant in a circular in a shallow layer. NFT provides proper environmental control of root areas, as well as efficient water and plant nutrients. This study aims to obtain growth and development of medicinal plants Purwoceng NFT. The study was conducted from May to July 2017. The research location of Dieng Kulon at an altitude of 2.000 m asl. The Purwoceng plant was planted with NFT technique within 5 replications. The measurement results are shown in graphical. Indicators of nutritional adequacy using EC (Electrict Conductivity) and pH. EC nutrient used is 1-1.5 mS / cm for purwoceng 1-30 HST, 1.5-2 mS / cm for plants > 30 HST, pH used 5.5-6.5. The results showed that average growth of Purwoceng plants until the age of 50 HST reaches 7-9 cm. The number of branches of Purwoceng plants up to the age of 50 HST reaches 2-4 branches. The percentage of Purwoceng plants experiencing timber in the NFT system reached 40%. Therefore it is necessary to do further research how influence duration of nutrition to growth and result of Purwoceng.

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9

Suhl, Johanna, Berry Oppedijk, Daniela Baganz, Werner Kloas, Uwe Schmidt, and Bert van Duijn. "Oxygen consumption in recirculating nutrient film technique in aquaponics." Scientia Horticulturae 255 (September 2019): 281–91. http://dx.doi.org/10.1016/j.scienta.2019.05.033.

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10

Yamasaki, A., A. Uragami, and M. Yamada. "HYDROPONIC FORCING OF TULIP USING A NUTRIENT FILM TECHNIQUE." Acta Horticulturae, no. 570 (February 2002): 423–27. http://dx.doi.org/10.17660/actahortic.2002.570.60.

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11

Wheeler, Raymond M., C. Ross Hinkle, Cheryl L. Mackowiak, John C. Sager, and William M. Knott. "Potato growth and yield using nutrient film technique (NFT)." American Potato Journal 67, no. 3 (March 1990): 177–87. http://dx.doi.org/10.1007/bf02987070.

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12

Cho, Y., E. Hahn, and Y. Lee. "EFFECTS OF NUTRIENT CONTROL ON THE GROWTH OF LETTUCE IN NUTRIENT FILM TECHNIQUE." Acta Horticulturae, no. 483 (January 1999): 161–66. http://dx.doi.org/10.17660/actahortic.1999.483.17.

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13

Tadesse, Teshome, Michael A. Nichols, and Keith J. Fisher. "Nutrient conductivity effects on sweet pepper plants grown using a nutrient film technique." New Zealand Journal of Crop and Horticultural Science 27, no. 3 (September 1999): 229–37. http://dx.doi.org/10.1080/01140671.1999.9514101.

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14

Tadesse, Teshome, Michael A. Nichols, and Keith J. Fisher. "Nutrient conductivity effects on sweet pepper plants grown using a nutrient film technique." New Zealand Journal of Crop and Horticultural Science 27, no. 3 (September 1999): 239–47. http://dx.doi.org/10.1080/01140671.1999.9514102.

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15

Puerta, Alejandro R., Suguru Sato, Yutaka Shinohara, and Toru Maruo. "A Modified Nutrient Film Technique System Offers a More Uniform Nutrient Supply to Plants." HortTechnology 17, no. 2 (April 2007): 227–33. http://dx.doi.org/10.21273/horttech.17.2.227.

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In nutrient film technique (NFT) vegetable production, the use of low-concentration nutrient solutions might lead to a nutrient concentration gradient along the bed, which can translate into nonuniform plant growth. The authors modified a conventional NFT system (cNFT) and propose a modified NFT (mNFT) that enables the production of lettuce (Lactuca sativa) plants of uniform fresh weight along elongated cultural beds. Two experiments were carried out to compare the systems when long cultural beds are used (18 m) in terms of uniformity of plant and nutrient solution characteristics. The results indicated that fresh weight of plants in cNFT decreased as the distance from the nutrient inlet increased, whereas no such trend was observed in mNFT. Leaf nitrate concentration in mNFT was uniform, whereas it was higher near the outlet of cNFT. Ascorbic acid concentration was also uniform in mNFT, but it was found to be lower near the outlet of cNFT. During Expt. 2, the oxygen content along the bed decreased from inlet to outlet in cNFT; however, in mNFT, it remained relatively constant at all sampling positions. Regarding the concentration of the nutrient solution along beds, no significant differences were found between inlet and outlet in both systems. It is suggested that the lower concentration of oxygen found at the outlet of cNFT might have reduced nutrient uptake, thus attenuating the difference in concentration between inlet and outlet. The temperatures of the nutrient solution along mNFT during Expt. 2 tended to be slightly lower than those of cNFT. However, temperatures were still too high and plant growth was negatively affected. The results of this study demonstrate that plants of uniform size and quality can be achieved in long cultural beds (up to 18 m long) supplied with a low-concentration fertilizer solution by using the proposed mNFT.

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16

Kharche, Dr Nilesh R. "Design and Development of Arduino based Nutrient Film Technique System." International Journal for Research in Applied Science and Engineering Technology 7, no. 5 (May 31, 2019): 3959–63. http://dx.doi.org/10.22214/ijraset.2019.5653.

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17

Rahmawati, Linda, Herry Iswahyudi, and Baimy Alexander. "Hydroponic Installation Nutrient Film Technique (NFT) System in Politeknik Hasnur." Agrisains: Jurnal Budidaya Tanaman Perkebunan Politeknik Hasnur 6, no. 01 (June 9, 2020): 8–12. http://dx.doi.org/10.46365/agrs.v6i01.371.

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The development of aquaculture with a hydroponic system is now more and more chosen by the community because of the increasingly limited land, but also comparable to the increasing demand for water. Hydroponics with the Nutrient Film Technique (NFT) system can be used as a solution to the water needs needed in the cultivation of hydroponics plants. This study aims to design the hydroponic installation of the NFT system and grow plants in the NFT system. The study was conducted with the stages of making the hut, making the installation, seeding, making nutritional solutions and transferring seed to the installation. The research will be conducted for five months. Descriptive research with qualitative data obtained is the way of making the NFT system, plant growth speed and the amount of water needed. Making the installation begin with the construction of the hut and shade then arranges the installation. For lettuce, the harvest time is 38 days dan tomatoes 50 days after the plants are moved to the plant. The need for water in the NFT hydroponic system is 190 liters.

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18

Castillo-Castellanos, D., I. Zavala-Leal, J. M. J. Ruiz-Velazco, A. Radilla-García, J. T. Nieto-Navarro, C. A. Romero-Bañuelos, and J. González-Hernández. "Implementation of an experimental nutrient film technique-type aquaponic system." Aquaculture International 24, no. 2 (October 26, 2015): 637–46. http://dx.doi.org/10.1007/s10499-015-9954-z.

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19

Nosir, Walid. "EFFICIENCY OF USING COMMERCIAL FERTILIZERS FORGLADIOLUSGROWTH IN NUTRIENT FILM TECHNIQUE." Journal of Plant Nutrition 34, no. 7 (May 4, 2011): 963–69. http://dx.doi.org/10.1080/01904167.2011.555579.

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20

Sopian Asmana, Medi, Sirajuddin Haji Abdullah, and Guyup Mahardhian Dwi Putra. "ANALISIS KESERAGAMAN ASPEK FERTIGASI PADA DESAIN SISTEM HIDROPONIK DENGAN PERLAKUAN KEMIRINGAN TALANG." Jurnal Ilmiah Rekayasa Pertanian dan Biosistem 5, no. 1 (July 30, 2017): 303–15. http://dx.doi.org/10.29303/jrpb.v5i1.41.

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Hidroponik merupakan teknologi bercocok tanam tanpa tanah dengan media yang digunakan adalah air dan nutrisi. Hidroponik dibagi menjadi beberapa system, yaitu sistem hidroponik aeroponik, NFT (Nutrient Film Technique), irigasi tetes, sistem fertigasi dan sistem wick. Pada penelitian ini digunakan sistem hidroponik NFT (Nutrient Film Technique) dengan aspek fertigasi. NFT (Nutrient Film Technique) aspek fertigasi merupakan sistem hidroponik dengan meletakkan akar tanaman pada lapisan air yang dangkal dan air tersebut tersirkulasi selama 24 jam serta mengandung nutrisi sesuai kebutuhan tanaman. Tujuan dari penelitian ini adalah menganalisis keseragaman sistem fertigasi pada aplikasi hidroponik NFT (Nutrient Film Technique) berdasarkan kemiringan talang. Metode penelitian yang digunakan adalah metode eksperimental dengan percobaan di lapangan. Adapun parameter penelitian yang diamati adalah keseragaman irigasi, keseragaman konduktivitas listrik, dan pH larutan nutrisi. Kemiringan yang digunakan pada penelitian ini adalah 2%, 4% dan 6%. Dari hasil penelitian didapatkan nilai rata-rata keseragaman irigasi pada ketiga perlakuan tersebut berturut-turut 99,49%; 99,27%; dan 99,27%. Nilai rata-rata keseragaman konduktivitas listrik berturut-turut 99,37%; 99,29% dan 99,25%. Sedangkan untuk pH berturut-turut 99,04%; 99,27%; dan 99,22%. Dari hasil uji keseragaman diperoleh bahwa pada ketiga perlakuan tersebut menunjukkan semua parameter memilki keseragaman. Kata kunci: fertigasi, hidroponik, keseragaman, NFT

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21

El-Behairy, U. A., A. F. Abou-Hadid, A. S. El-Beltagy, and S. W. Burrage. "INTERMITTENT CIRCULATION FOR EARLIER TOMATO YIELD UNDER NUTRIENT FILM TECHNIQUE (NFT)." Acta Horticulturae, no. 287 (May 1991): 267–72. http://dx.doi.org/10.17660/actahortic.1991.287.30.

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22

Gualberto, Ronan, Paulo Sérgio Rabelo de Oliveira, and Francisco Vilela Resende. "Long-life tomato cultivars growing under the hydroponic Nutrient Film Technique." Scientia Agricola 59, no. 4 (December 2002): 803–6. http://dx.doi.org/10.1590/s0103-90162002000400027.

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Farmers are interested in hydroponic tomato cultivation because of the high demand of high quality products by the consumers. Three trials here carried out under greenhouse conditions in Marília, SP, Brazil, using the hydroponic nutrient film technique, in order to evaluate yield and quality of long-life salad tomato (Lycopersicon esculentum) varieties, during 1998 and 1999. Four varieties (Carmen, Diva, Graziela, and Vita) were tested using a randomized block design, with six replications. The variety x crop season interaction effect was significant, meaning that varieties have distinct performances during the different cropping seasons. The Vita variety presented commercial valid yield, with mean fruit weights higher than the other varieties.

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23

S. Zolnier, G. B. Lyra, and R. S. Gates. "EVAPOTRANSPIRATION ESTIMATES FOR GREENHOUSE LETTUCE USING AN INTERMITTENT NUTRIENT FILM TECHNIQUE." Transactions of the ASAE 47, no. 1 (2004): 271–82. http://dx.doi.org/10.13031/2013.15868.

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24

Mortley, D. G., J. H. Hill, D. R. Hileman, C. K. Bonsi, and W. A. Hill. "LIGHT AND CO2 INTERACTION ON PEANUT GROWN IN NUTRIENT FILM TECHNIQUE." Acta Horticulturae, no. 548 (March 2001): 327–34. http://dx.doi.org/10.17660/actahortic.2001.548.37.

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25

Almazan, Aurea M., Desmond G. Mortley, and Patricia J. Grant. "Sugar Beet Grown Using Nutrient Film Technique: Yield and Nutritional Quality." Journal of the Science of Food and Agriculture 70, no. 3 (March 1996): 369–72. http://dx.doi.org/10.1002/(sici)1097-0010(199603)70:3<369::aid-jsfa515>3.0.co;2-p.

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26

Irawati, Irawati, Diar Irmawati, M. Ganda Arya Permana, and Mohamad Riziq Amri. "Internet Of Things (IoT) In Water Quality Monitoring Systems And Nutrition In Hydroponic Plants." Eduvest - Journal Of Universal Studies 1, no. 8 (August 20, 2021): 676–84. http://dx.doi.org/10.36418/edv.v1i8.139.

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Abstract Population is growing every year. This has an impact on the reduction of agricultural land to cultivate crops. This study aims to combine a concept that aims to expand the benefits of continuously connected internet connectivity. Based on the long term, the narrowing of agricultural land will have an impact on the scarcity of hydroponic NFT (Nutrient Film Technique) is a model of cultivation by putting the roots of plants in a shallow layer of water. The water is circulated and contains nutrients according to the needs of plants. This study combines hydroponic plants with the help of Internet of Things (IoT) technology using hydroponic planting techniques. Rooting can develop in a nutrient solution, because around rooting there is a layer of nutrient solution then the system is known as NFT. Excess water reduces the amount of oxygen and dissolved nutrients. The use of a manual measuring instrument is actually time-consuming if the owner is busy. Based on this background, the author got the idea to create a system of monitoring water quality and nutrients in hydroponic plants that can be accessed through a mobile phone.

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Lee, Yun-Jeong, and Eckhard George. "Development of a Nutrient Film Technique Culture System for Arbuscular Mycorrhizal Plants." HortScience 40, no. 2 (April 2005): 378–80. http://dx.doi.org/10.21273/hortsci.40.2.378.

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A nutrient film technique (NFT) culture system was developed to allow nursery production of arbuscular mycorrhizal horticultural crops. This would benefit horticultural production and allow for uncomplicated production of mycorrhizal hyphae. Roots of lettuce (Lactuca sativa var. capitata) plants were highly colonized by the arbuscular mycorrhizal fungus, Glomus mosseae (BEG 107) after 4 weeks in the NFT system, following an initial phase of five weeks in inoculated in Perlite substrate. In the NFT system, a thin layer of glass beads was used to provide solid support for plant and fungus growth and nutrient solution was supplied intermittently (15 min, six times per day). A modified nutrient solution (80 μm P) was used and was replaced with fresh solution every 3 days. A significantly higher dry weight was found for the mycorrhizal versus the nonmycorrhizal lettuce plants in Perlite during the precolonization period. The root colonization rate was also high at rates up to 80 μm P supply. On the NFT system, growth differences between mycorrhizal and nonmycorrhizal plants were less than in Perlite. However, root colonization rate was not reduced during the NFT culture period. In this system, high amounts of fungal biomass were produced. This would allow the determination of metal and other nutrient concentrations in fungal hyphae. Furthermore, we found large amounts of external fungal hyphae surrounding the root surface. As much as 130 mg fungal biomass were collected per culture plate (three plants). Therefore, we suggest that this modified NFT culture system would be suitable for fungal biomass production on a large scale with a view to additional aeration by intermittent nutrient supply, optimum P supply, and a use of glass beads as support materials. Furthermore, bulk inoculum composition with a mixture of spores, colonized roots, and hyphae grown in soilless media by the modified NFT system might be a useful way to mass-produce mycorrhizal crops and inoculum for commercial horticultural purposes.

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Herdiana, Budi, and Muhammad Habibi Barkatulah. "System Smart Urban Gardenin Based on Internet of Things." Telekontran : Jurnal Ilmiah Telekomunikasi, Kendali dan Elektronika Terapan 6, no. 2 (October 25, 2018): 12–22. http://dx.doi.org/10.34010/telekontran.v6i2.3796.

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Abstract - The need for the development of technology plays an important role as the more advanced times make us have to keep up with technological advances, this plant activists have the desire to plant hydroponic methods, one of which can be used is the Nutrient Film Technique system. Basically hydroponic plants need supervision and special attention to make hydroponic plants grow as desired. So we need a special way to find out the pH of water in plants, nutrients in plants, temperature and air humidity in plants is needed by people who will plan farming activities, in the future by knowing the information from the sensors used, the community can prepare some things that need to be prepared as anticipating the possibilities that will occur. In this study, the Smart Urban Gardening tool uses the hydroponic method with the Internet Of Things based Nutrient Film Technique system, where there will be several parameters such as pH on automatic controlled water, nutrients on water to be measured, temperature and humidity, these parameters will be sent to the webserver via smartphone, in this study webserver is used, namely the keyboard as a data server to see the results of sensor readings, after the data has been sent successfully it will then be displayed on two interfaces namely android and website applications. The application used can determine the state of water ph in plants and water nutrients in plants and the temperature for the pH of the plants used are in the range 6.5 to 7.0, From the data that can be taken as a result, the pH obtained in plant water is 6 , 6 and stated to be in the appropriate rangeof plants, then the nutritional value obtained is 7.65 for temperatures of 25.9 and humidity of 56.8, so this tool can be used for hydroponic plants. Keywords : Internet Of Things, android, iserius board, Sistem Otomatis, Nutrient Film Technique.

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Sari, Kun Rawan. "Influence of Planting Medium on Different Nutrient Concentration to The Growth and Yield of Celery (Apium graveolens L.) With The Nutrient Film Technique Hydroponic Cultivation System." AGRIFOR 17, no. 1 (March 11, 2018): 115. http://dx.doi.org/10.31293/af.v17i1.3356.

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Celery is a commercial plant that should be cultivated. Nutrient Film Technique Hydroponic cultivation systems is one of the technologies that can be applied in a narrow area, but research of the planting medium and the concentration of nutrients in hydroponic cultivation system for celery plants are rare. This study aimed to analyze the influence interaction and single factors planting medium and nutrient concentrations on the growth and yield of celery. The design of this study used split plot design. The main plot were the concentration of nutrients (n): 1200 ppm (n1), 1300 ppm (n2), and 1400 ppm (n3). Subplot were the planting mediums (m): rockwool as control (m0), sawdust (m1), husk fuel (m2), and rice straw (m3). There were twelve combinations, with three replicates. The results showed that treatment interaction was not significant effect on growth and yield, but a single treatment of plant media rockwool and nutrient concentration of 1300 ppm able to increase the growth and yield of celery.

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Nurcahyo, Addy Rachmad, Kiki Prawiroredjo, and Susan Sulaiman. "Prototipe Sistem Pembuatan Larutan Nutrisi Otomatis pada Hidroponik Metode Nutrient Film Technique." Techné : Jurnal Ilmiah Elektroteknika 19, no. 02 (August 28, 2020): 71–82. http://dx.doi.org/10.31358/techne.v19i02.230.

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Prototipe Sistem Pembuatan Larutan Nutrisi Otomatis pada Hidroponik Nutrient Film Technique merupakan suatu sistem otomasi yang dapat mempermudah dan mempersingkat waktu pembudidaya dalam proses pembuatan larutan nutrisi untuk budidaya tanaman hidroponik. Pembuatan larutan nutrisi dilakukan secara otomatis sesuai dengan umur tanaman selada yang diatur menggunakan Real Time Clock (RTC). Sistem yang dibuat terdiri dari sensor jarak ultrasonik sebagai pengukur ketinggian laruran nutrisi dan sensor Total Dissolved Solids (TDS) meter untuk mengukur kadar total padatan terlarut. Sensor dihubungkan ke Arduino Mega 2560 sebagai komponen utama yang memproses sinyal masukan. Keluaran dari Arduino dikirim ke modul relay yang berfungsi sebagai saklar otomatis untuk mengatur kerja perangkat keluaran berupa pompa pengisian air, pompa sirkulasi, motor pengaduk dan solenoid valve. Pembuatan nutrisi dilakukan sebanyak 6 kali, yaitu pada umur 0 hari dan 7 hari dengan target TDS 600 ppm, umur 14 hari dan 21 hari dengan target TDS 700 ppm, umur 28 hari dengan target TDS 800 ppm dan umur 35 hari dengan target TDS 850 ppm. Pembuatan larutan nutrisi dapat berjalan secara otomatis dengan kadar TDS larutan nutrisi yang dihasilkan pada tiap target pembuatan rata-rata sebesar 640 ppm, 716 ppm, 833 ppm dan 862 ppm dengan toleransi 50 ppm. Kata kunci: Arduino Mega, Hidroponik, Nutrient Film Technique, Selada, Total Dissolved Solids

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Rouchaud, Jean, Marc Metsue, Frans Benoit, Norbert Ceustermans, and Alfons Vanachter. "Fate of the fungicide furalaxyl in the nutrient solution of tomato crops by the nutrient film technique." Journal of Agricultural and Food Chemistry 37, no. 2 (March 1989): 492–95. http://dx.doi.org/10.1021/jf00086a049.

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Burrage, S. W. "THE NUTRIENT FILM TECHNIQUE (NFT) FOR CROP PRODUCTION IN THE MEDITERRANEAN REGION." Acta Horticulturae, no. 491 (May 1999): 301–6. http://dx.doi.org/10.17660/actahortic.1999.491.45.

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Pisanu, A. B., and A. Sirigu. "A COMPARISON BETWEEN HYBRIDS OF GLADIOLI CULTIVATED IN NUTRIENT FILM TECHNIQUE (NFT)." Acta Horticulturae, no. 559 (October 2001): 85–90. http://dx.doi.org/10.17660/actahortic.2001.559.9.

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Alipio, Melchizedek I., Allen Earl M. Dela Cruz, Jess David A. Doria, and Rowena Maria S. Fruto. "On the design of Nutrient Film Technique hydroponics farm for smart agriculture." Engineering in Agriculture, Environment and Food 12, no. 3 (July 2019): 315–24. http://dx.doi.org/10.1016/j.eaef.2019.02.008.

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Nursyahid, A., H. Helmy, A. I. Karimah, and T. A. Setiawan. "Nutrient Film Technique (NFT) hydroponic nutrition controlling system using linear regression method." IOP Conference Series: Materials Science and Engineering 1108, no. 1 (March 1, 2021): 012033. http://dx.doi.org/10.1088/1757-899x/1108/1/012033.

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Sari, Kun Rawan, Jamzuri Hadie, and Chatimatun Nisa. "Pengaruh Media Tanam pada Berbagai Konsentrasi Nutrisi terhadap Pertumbuhan dan Hasil Seledri dengan Sistem Tanam Hidroponik NFT." Daun: Jurnal Ilmiah Pertanian dan Kehutanan 3, no. 1 (June 1, 2016): 7–14. http://dx.doi.org/10.33084/daun.v3i1.155.

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Celery is a commercial plant that should be cultivated. Nutrient Film Technique Hydroponic cultivation systems is one of the technologies that can be applied in a narrow area, but research of the planting medium and the concentration of nutrients in hydroponiccultivation system for celery plants are rare. This study aimed to analyze the influence interaction planting medium and nutrient concentrations on the growth and yield of celery. The design of this study used split plot design. The main plot were the concentration of nutrients (N): 1200 ppm (n1), 1300 ppm (n2), and 1400 ppm (n3). Subplot were the planting mediums (M): rockwool as control (m0), sawdust (m1), husk fuel (m2), and rice straw (m3). There were twelve combinations, with three replicates. The results showed that treatment interaction was not significant effect on growth and yield, but a single treatment of plant media rockwool and nutrient concentration of 1300 ppm able to increase the growth and yield of celery.

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Pratama, Johan Andri, Alfian Hamdani, and Aryanda Tata Permana. "Growing Insights and Youth Knowledge in the NFT Hydraulic Application (Nutrient Film Technique)." Kontribusia (Research Dissemination for Community Development) 2, no. 1 (February 22, 2019): 41. http://dx.doi.org/10.30587/kontribusia.v2i1.781.

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The more rapid growth of technology allows humans to work effectively and efficiently. Technology proves the way humans change patterns of significant social change, from those that initially used human power to machines. The way humans use machines is inseparable from the ways and techniques of its use which are effective and efficient. One of the technologies used is the technology of crop cultivation without using soil as a planting medium. The technology introduced is hydroponics. Hydroponics as a way of farming is an approach that has several advantages, namely the use of agricultural land that is not extensive, and the system is not too complicated. The introduction of this technology aims to provide insight and knowledge to the public about the technology of crop cultivation in addition to conventional farming systems. This activity was carried out in Rayung gumuk Village, Glagah District, Lamongan Regency. The hydroponic system that we introduce is the NFT hydroponic system (Nutrient Film Technique). The goal is because the hydroponic system is easily applied and has several significant advantages. The first method of implementation is socialization.This is done to find out the extent to which people's insights and knowledge about hydroponics and the interests and interests of the community towards hydroponic using the NFT system. Moreover, the second is training. It aims to provide techniques and methods for assembling NFT hydroponic installations. From the results of our activities, the community's response to hydroponics is still minimal because some of them still consider hydroponic use too costly and their disinterest in agriculture.

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Belisário, Amanda Luiza Basílio, Lívia de Siqueira Estevam, Henrique Selli Debone, Cristiana Maria Pedroso Yoshida, Patrícia Santos Lopes, and Classius da Silva Ferreira. "Mechanical and Barriers Properties of Chitosan Films with Hydrophilic and Hydrophobic Phytotherapics." Materials Science Forum 805 (September 2014): 71–76. http://dx.doi.org/10.4028/www.scientific.net/msf.805.71.

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Chitosan films have been used as dressings for healing burns. The physical and biological properties of these films can be modified by the addition of bioactive substances such as phytotherapics. This work used the casting - solvent evaporation technique for the preparation of chitosan film containing hydrophilic or hydrophobic phytotherapic. The barrier properties, mechanicals properties and microbial penetration were evaluated. The results showed that the films containing the hydrophobic herbal showed lower ability to move fluid and permeability to water vapor compared to the film containing the hydrophilic herbal. For the determination of microbial permeation, film were previously sterilized and were fixed in the mouth of glass vials containing sterile nutrient broth and left on the lab bench for a period of 10 days. Negative and positive controls were also conducted. The chitosan films do not allow the microbial penetration.

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II, Ronnie S. Concepcion, Sandy C. Lauguico, Jonnel D. Alejandrino, Argel A. Bandala, Edwin Sybingco, Ryan Rhay P. Vicerra, Elmer P. Dadios, and Joel L. Cuello. "Adaptive Fertigation System Using Hybrid Vision-Based Lettuce Phenotyping and Fuzzy Logic Valve Controller Towards Sustainable Aquaponics." Journal of Advanced Computational Intelligence and Intelligent Informatics 25, no. 5 (September 20, 2021): 610–17. http://dx.doi.org/10.20965/jaciii.2021.p0610.

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Sustainability is a major challenge in any plant factory, particularly those involving precision agriculture. In this study, an adaptive fertigation system in a three-tier nutrient film technique aquaponic system was developed using a non-destructive vision-based lettuce phenotype (VIPHLET) model integrated with an 18-rule Mamdani fuzzy inference system for nutrient valve control. Four lettuce phenes, that is, fresh weight, chlorophylls a and b, and vitamin C concentrations as outputted by the genetic programming-based VIPHLET model were optimized for each growth stage by injecting NPK nutrients into the mixing tank, as determined based on leaf canopy signatures. This novel adaptive fertigation system resulted in higher nutrient use efficiency (99.678%) and lower chemical waste emission (14.108 mg L-1) than that by manual fertigation (92.468%, 178.88 mg L-1). Overall, it can improve agricultural malpractices in relation to sustainable agriculture.

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Fernández-Trujillo, J. P., C. Sánchez, J. Obando, M. D. Gómez, and J. M. Mercader. "QUALITY OF GREENHOUSE CUCUMBER FRUIT GROWN ON PERLITE SUBSTRATE OR NUTRIENT FILM TECHNIQUE." Acta Horticulturae, no. 633 (March 2004): 229–36. http://dx.doi.org/10.17660/actahortic.2004.633.27.

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Rathod, Ashwini D., Rajesh P. Murukar, and Suchita V. Gupta. "Modification and Performance Evaluation of Hydroponic Structure with Nutrient Film Technique for Spinach." International Journal of Current Microbiology and Applied Sciences 9, no. 1 (January 10, 2020): 2544–55. http://dx.doi.org/10.20546/ijcmas.2020.901.289.

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Halder, K. P., and S. W. Burrage. "Drought Stress Effects on Water Relations of Rice Grown in Nutrient Film Technique." Pakistan Journal of Biological Sciences 6, no. 5 (February 15, 2003): 441–44. http://dx.doi.org/10.3923/pjbs.2003.441.444.

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Rowell, T., D. G. Mortley, P. A. Loretan, C. K. Bonsi, and W. A. Hill. "Continuous Daily Light Period and Temperature Influence Peanut Yield in Nutrient Film Technique." Crop Science 39, no. 4 (July 1999): 1111–14. http://dx.doi.org/10.2135/cropsci1999.0011183x003900040026x.

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Chotai, A., and P. C. Young. "Self-adaptive and self-tuning control of a nutrient film technique (NFT) system." IFAC Proceedings Volumes 24, no. 11 (September 1991): 33–40. http://dx.doi.org/10.1016/b978-0-08-041273-3.50011-2.

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Mortley, Desmond G., C. K. Bonsi, Walter A. Hill, P. A. Loretan, and C. E. Morris. "Irradiance and Nitrogen to Potassium Ratio Influences Sweetpotato Yield in Nutrient Film Technique." Crop Science 33, no. 4 (July 1993): 782–84. http://dx.doi.org/10.2135/cropsci1993.0011183x003300040030x.

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46

Hidayat, C., M. R. Pahlevi, B. F. Taufiqqurahman, and M. A. Ramdhani. "Growth and Yield of Chili in Nutrient Film Technique at Different Electrical Conductivity." IOP Conference Series: Materials Science and Engineering 288 (January 2018): 012034. http://dx.doi.org/10.1088/1757-899x/288/1/012034.

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47

Almazan, A. M., and X. Zhou. "Biomass yield and composition of sweetpotato grown in a nutrient film technique system." Plant Foods for Human Nutrition 50, no. 3 (May 1997): 259–68. http://dx.doi.org/10.1007/bf02436062.

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Hasta Pratopo, Lukito, Ahmad Thoriq, Rizky Mulya Sampurno, and I. Made Joni. "Application of Fine Bubble Generator on the Hydroponic System of Nutrient Film Technique." Advanced Engineering Forum 41 (July 7, 2021): 67–74. http://dx.doi.org/10.4028/www.scientific.net/aef.41.67.

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Dissolved oxygen in water is one of the factors affecting plant growth in the hydroponic nutrient film technique system. The fine bubble generator technique allows the provision of high dissolved oxygen levels in water with fine bubble size and prolonged water existence. The experiment was conducted to observe the effect of fine bubbles on choy sum plant growth. Plant growth parameters including leaf length (Pd), leaf width (Ld), plant height (Tt), number of leaves (Jd), and root weight (Ba) were measured every two days while the total plant weight was measured at harvest. Nutritional water quality and microclimate were controlled using internet of things (IoT) based sensors every 5 minutes. The research data were processed using descriptive analysis. The results showed that the use of fine bubbles increased the electrical conductivity (EC), pH, and total dissolved solids (TDS). On the contrary, the nutrient solution’s temperature increased, thus reducing the total dissolved oxygen content. The yields showed that the choy sum plant growth using fine bubbles application weighed 1.71 kg (5 samples) better than the control 1.35 kg.

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Luthfianto, Saufik, M. Haidar Aji Pratama, and Afrizal Aimudin. "Vegetable Cultivation with Hydroponic System Nutrient Film Technique In Karang Taruna Gendowang Village." ASEAN Journal of Empowering Community 2, no. 1 (April 30, 2021): 1–7. http://dx.doi.org/10.24905/ajecom.v2i1.1.

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The result of initial survey in Gendowang Village, Moga District, Pemalang regency is an area with a large potential agricultural area with a total land of 82 ha more and the average population is farming, so it is very potential in developing agricultural systems with hydroponic systems. Enthusiastic citizens are seen at the time of socialization activities. The initial method of applying this technology is an approach to the community, then socialization and workshop. The method used in developing this agricultural system is the application of hydroponic methods with NFT systems. The result is by increasing knowledge and skills in the insertion of this method by 43.95%.

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Rukmi, Sindy Sella, Aiyen Aiyen, and Abdul Rauf. "GROWTH OF SPINACH (AMARANTHUS TRICOLOR L.) UNDER VARIOUS APPLICATIONS OF NUTRIENT CONCENTRATIONS IN HYDROPONIC SYSTEM OF NUTRIENT FILM TECHNIQUE." AGROLAND: The Agricultural Sciences Journal 4, no. 2 (February 12, 2018): 75. http://dx.doi.org/10.22487/j24077593.2017.v4.i2.9542.

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The research aimed to discover the response of the growth of two spinach species on Nutrient Film Technique (NFT) hydroponic system and the concentration of the appropriate AB Mix solution on each species. The research was conducted in January to February 2016, at Green House, Faculty of Agriculture, Tadulako University by using Split Plot Design method. The main plot was red and green spinach, while the subplot was the concentration of AB Mix nutrient solution, namely 4 ml/L of water, 5 ml/L of water, 6 ml/L of water and 7 ml/L of water. The research findings reveal that AB Mix nutrient solution was generally very good to support the growth of spinach on NFT hydroponic. The green spinach had better response rather than the red one. There was no interaction between species and the concentration of nutrient solution. The good concentration of nutrient solution for green spinach is 6 ml/L. It was showed by the better growth of plant height on all age of plant, the more number of leaves, the canopy and the root (wet and dry) were heavier, while on the red spinach, 5 ml/L of concentration of nutrient solution resulted in the best growth, yet it was not significantly different from other concentration except on the parameter of plant height and the dry weight of plant canopy.

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