Bibliographies thématiques / Tea garden weeds

Littérature scientifique sur le sujet « Tea garden weeds »

Auteur : Grafiati
Publié le 18 mai 2024

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Articles de revues sur le sujet "Tea garden weeds"

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Ghosh, Chandra, Rajib Biswas et A. P. Das. « Ethnic uses of some pteridophytic weeds of tea gardens in Darjeeling and Terai ». NBU Journal of Plant Sciences 2, no 1 (2008) : 86–93. http://dx.doi.org/10.55734/nbujps.2008.v02i01.008.

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Pteridophytes occupy a recognisable position in the flora of Terai and the hills of Darjiling. They are also well represented as weed in the Tea Gardens of this area. Recent survey recorded the occurrence of 86 species of pteridophytes from nine such gardens covering both Terai and Darjiling Hills. Of these, 25 species (30%), covering 21 genera and 20 families, are used by the Tea Garden workers in different manner like (i) 10 species as food, (ii) 02 species for fermenting traditional liquor, (iii) 01 species as fodder and (iv) 22 species as medicine for human diseases. In addition, some of these plants are used for basketry, playing carom, ceremonial decoration, ornamentals etc.
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Lu, Jinzhu, Yishan Xu et Zongmei Gao. « An Improved Method of an Image Mosaic of a Tea Garden and Tea Tree Target Extraction ». AgriEngineering 4, no 1 (25 février 2022) : 231–54. http://dx.doi.org/10.3390/agriengineering4010017.

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UAV may be limited by its flight height and camera resolution when aerial photography of a tea garden is carried out. The images of the tea garden contain trees and weeds whose vegetation information is similar to tea tree, which will affect tea tree extraction for further agricultural analysis. In order to obtain a high-definition large field-of-view tea garden image that contains tea tree targets, this paper (1) searches for the suture line based on the graph cut method in the image stitching technology; (2) improves the energy function to realize the image stitching of the tea garden; and (3) builds a feature vector to accurately extract tea tree vegetation information and remove unnecessary variables, such as trees and weeds. By comparing this with the manual extraction, the algorithm in this paper can effectively distinguish and eliminate most of the interference information. The IOU in a single mosaic image was more than 80% and the omissions account was 10%. The extraction results in accuracies that range from 84.91% to 93.82% at the different height levels (30 m, 60 m and 100 m height) of single images. Tea tree extraction accuracy rates in the mosaic images are 84.96% at a height of 30 m, and 79.94% at a height of 60 m.
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Chen, Guoqi, Bin Zhang, Qiong Wu, Linhong Jin, Zhuo Chen et Xiaofeng Tan. « Group characteristics of tea growers relative to weed management : a case study in southwestern China ». Weed Technology 33, no 6 (22 août 2019) : 847–54. http://dx.doi.org/10.1017/wet.2019.67.

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AbstractFarmer training is important to improve weed management practices in tea cultivation. To explore the group characteristics of tea growers, we interviewed 354 growers in Guizhou Province, China. Sixty-one percent of the respondents planted tea for companies or cooperative groups, and 56% managed tea gardens larger than 10 ha. Self-employed tea growers tended to be older and smallholders, and to apply herbicides and conduct weed control less frequently (P < 0.05). Approximately 87% of the respondents conducted weed control two to four times yr−1, 83% spent between $200 and $2,000 ha−1 yr−1 for weed control, and 42% thought weed control costs would decrease by 5 years from this study. Twenty-eight species were mentioned by the respondents as being the most serious. According to canonical correspondence analysis, latitude, altitude, being self-employed or a member of a cooperative, having training experience in tea-garden weed management, and frequency and cost of weed control in tea gardens had significant (P < 0.05) influence on the composition of most troublesome weed species listed by respondents. Among the respondents, 60% had had farmer’s training on weed management in tea gardens. Of these, a significant number (P < 0.05) tended to think weed control costs would decrease, and a nonsignificant number (P > 0.05) tended to conduct weed control more frequently and have lower weed management costs in their tea gardens.
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Kairi, Tamal Kanti, et Sanghamitra Dey. « Prevalence of work-related musculoskeletal symptoms among tea garden workers in Bangladesh : a cross-sectional study ». BMJ Open 12, no 5 (mai 2022) : e061305. http://dx.doi.org/10.1136/bmjopen-2022-061305.

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ObjectivesOccupational health is still in the developmental stage in Bangladesh. There is a lack of focus on agricultural workers. Statistics on musculoskeletal symptoms (MSS) of any occupational group can assist in developing intervention and ergonomics-based prevention. This study aimed to assess work-related MSS among tea garden workers.SettingThis cross-sectional study was done in one tea garden in Moulvibazar district which has the highest number of gardens in Bangladesh.Design and participants346 tea garden workers were interviewed using the Nordic Musculoskeletal Questionnaire Extended Version 2. Workers 18–60 years of age and of both sexes were interviewed individually.Outcome measuresPrevalence of MSS among the tea garden workers, MSS in different body regions and MSS related informations. Sociodemographic and work-related factor associated with MSS.ResultsAmong the tea garden workers, 276 were female and 70 were male. The study showed 80.9% had symptoms in the past 12 months while 80.1% and 76.6% had in the past 4 weeks and on the day of the interview, respectively. Symptoms were most commonly reported at the shoulder (78.2%) followed by upper back (56.1%) and lower back (32.5%). Workers engaged with plucking operation were found to be significantly associated with symptoms compared with non-pluckers (p<0.05). Female workers were more likely to display symptoms in the neck (p<0.05) than male workers. Increased work hours were significantly associated with symptoms in the lower back (p<0.05). Overtime was responsible for symptoms in the elbow and hip/buttock (p<0.05). Statistics from relevant studies in India, Malaysia and Thailand were compared with the results of this study.ConclusionsThe prevalence of MSS among tea garden workers was found to be very high, and ergonomic interventions like reduction of weight load, job rotation and small breaks can reduce these symptoms.
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Asif, Mohd, Bishnu Ram Das et Anuja Baruah. « Prevalence of diarrhoea and child care practices among under-five children in tea gardens of Jorhat district, Assam ». International Journal Of Community Medicine And Public Health 6, no 8 (26 juillet 2019) : 3477. http://dx.doi.org/10.18203/2394-6040.ijcmph20193475.

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Background: Globally diarrhoea remains the second leading cause of mortality among children of below five years age. Objective was to find out the prevalence of diarrhoea and child care practices associated with diarrhoea in under five children of tea garden workers of Jorhat district, Assam.Methods: A community based cross sectional study was conducted among the under five children of selected tea gardens of Jorhat district of Assam, India from July 2017 to June 2018.Results: Prevalence of diarrhoea among the study participants in last 2 weeks was found to be 26.4%. Out of 315 study participants, 24.1% belonged to the age group of 12-24 months, 55.2% were males. Exclusive breast feeding was recorded in 95.9% of the children. Prevalence of diarrhoea was less among exclusively breast fed children 25.5% as compared to not exclusively breastfed 46.1%. Health advice during diarrhea was sought by 97.8% of the respondents. Available records showed almost all of the children 99.3% got vaccinated with measles vaccine and contrary to this majority 64.4% study participants had not received Rota virus vaccination.Conclusions: Diarrhoea is still a significant public health problem among fewer than five children of tea garden workers with low Rota virus vaccine coverage. Our study findings recommends for the awareness building among the tea garden dwellers in regard to hand hygiene, timely initiation of complementary feeding, importance of vaccinating children with Rota virus vaccine as a part of containment programme.
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Inagaki, Hidehiro, et Masashi Tsushi. « Intraspecific variation of catechins and caffeine sensitivity in Stellaria media growing in tea garden ». Journal of Weed Science and Technology 65, no 1 (2020) : 5–8. http://dx.doi.org/10.3719/weed.65.5.

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V U, Nimmy, et Dr Rani L. « A Study on the Impact of Covid 19 on Tea Plantation Sector in India ». International Journal for Research in Applied Science and Engineering Technology 12, no 4 (30 avril 2024) : 458–60. http://dx.doi.org/10.22214/ijraset.2024.59771.

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Abstract: COVID-19 has had a significant impact on tea farmers all around the world, owing to national lockdowns and social distancing measures. The tea market is experiencing uncertainty as a result of export and import limitations, and growers are adopting emergency steps to prevent the spread of COVID-19 in tea communities. In March and April, India, the world's secondlargest tea grower, imposed tight lockdown measures that halted all agricultural activity for several weeks. Tea gardens and small tea growers have just resumed tea production and export, however the lockout has had a substantial impact on tea producers and smallholder livelihoods. This paper tries to examine the impact of COVID 19 on tea plantation sector in India.
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Hajiboland, Roghieh, Aiuob Moradi, Ehsan Kahneh, Charlotte Poschenrieder, Fatemeh Nazari, Jelena Pavlovic, Roser Tolra, Seyed-Yahya Salehi-Lisar et Miroslav Nikolic. « Weed Species from Tea Gardens as a Source of Novel Aluminum Hyperaccumulators ». Plants 12, no 11 (27 mai 2023) : 2129. http://dx.doi.org/10.3390/plants12112129.

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Increased availability of toxic Al3+ is the main constraint limiting plant growth on acid soils. Plants adapted to acid soils, however, tolerate toxic Al3+, and some can accumulate Al in their aerial parts to a significant degree. Studies on Al-tolerant and Al-accumulating species have mainly focused on the vegetation of acid soils distributed as two global belts in the northern and southern hemispheres, while acid soils formed outside these regions have been largely neglected. The acid soils (pH 3.4–4.2) of the tea plantations in the south Caspian region of Northern Iran were surveyed over three seasons at two main locations. Aluminum and other mineral elements (including nutrients) were measured in 499 plant specimens representing 86 species from 43 families. Al accumulation exceeding the criterion for accumulator species (>1000 µg g−1 DW) was found in 36 species belonging to 23 families of herbaceous annual or perennial angiosperms, in addition to three bryophyte species. Besides Al, Fe accumulation (1026–5155 µg g−1 DW) was also observed in the accumulator species that exceeded the critical toxicity concentration, whereas no such accumulation was observed for Mn. The majority of analyzed accumulator plants (64%) were cosmopolitan or pluriregional species, with a considerable rate of Euro-Siberian elements (37%). Our findings, which may contribute to phylogenetic studies of Al accumulators, also suggest suitable accumulator and excluder species for the rehabilitation of acid-eroded soils and introduce new model species for investigating Al accumulation and exclusion mechanisms.
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Puzari, K., R. Bhuyan, Pranab Dutta et H. Deva Nath. « Distribution of Mikania and its economic impact on tea ecosystem of Assam ». Indian Journal of Forestry 33, no 1 (1 mars 2010) : 71–76. http://dx.doi.org/10.54207/bsmps1000-2010-5pr37d.

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Mikania micrantha a gregarious perennial fast growing herbaceous creeping vine possess a serious threat to tea production. Negative impacts of the weed include labour cost, reduction in yield of crop, loss of native biodiversity etc. An ecological survey to study the seasonal distribution and economic impact in terms of cost and profitability of tea cultivation was carried out during 2004-2005 in two sites viz., Cinnamora Tea Estate (CTE), Division: Hatigarh and Experimental Garden for plantation crop (EGPC), Assam Agricultural University, Jorhat (Assam). The results of the present investigation showed highest population build-up 2600 and 1000 numbers of Mikania stalks/ha during the month of September and August respectively in CTE and AAU. Study on economic impact of Mikania showed an adverse effect of it on tea cultivation in the surveyed area causing a loss of 41.8% and 18.90 % respectively in CTE and EGPC.
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Pakeeratharan, K., A. N. P. E. Dayananda et R. Viharnaa. « Formulation and efficacy testing of vermi-tea based liquid organic fertilizers on green-amaranth (<em>Amaranthus viridis</em> ; L.) for home gardens ». AGRIEAST : Journal of Agricultural Sciences 17, no 1 (3 octobre 2023) : 42–53. http://dx.doi.org/10.4038/agrieast.v17i1.120.

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Sudden food shortage due to strict green agriculture policy, economic crisis, COVID pandemic situation instruct the importance of home level organic production of good quality fruits and vegetables. Therefore, an experiment was conducted to test the efficacy of organic liquid fertilizers formulated from fish, livestock’s and plant wastes on leafy vegetable green Amaranth to promote home gardening. The liquid fertilizer was tested on Amaranth grown separately in vemicompost and garden compost. The 7 kg capacity pots were filled with two media (medium 1: vemicompost; medium 2: garden compost) and arranged in CRD with four replicates with each medium. Five plants of green-amaranth per pot were planted and treated with fish emulsion + vermi-tea (1:4=T1), cow urine + vermi-tea (1:4=T2), three leaves [Neem+ Giliricidia+ Candle bush] solution + vermi tea (3:1=T3), vermi tea (T4) and control (T5) at the rate of 50 mL/pot on 2nd, 4th and 6th week after planting. Agronomic and yield data were collected and subjected to ANOVA using SAS. Tukey's HSD multiple comparison test and PROC CORR was used to determine the best treatment combination at P <0.05. The results revealed that there was significant difference in N, P and K content of the treatments tested. The plant height, leaf area, number of leaves, root shoot ratio was significantly higher in fish emulsion + vermi-tea (1:4) [T1] and cow urine + vermi-tea [T2] at 8th weeks after planting in vermi-compost medium. There was strong and positive correlation (R2 > 0.8) among yield parameters, and root: shoot ratio with N, P K content of the liquid fertilizers tested in vermi-compost medium. Therefore, this investigation concludes that the fish emulsion + vermi-tea (1:4) and cow urine + vermi-tea (1:4) are good combination to use as liquid fertilizer at the rate of 50mL/Pot to get best yield in vermi-compost medium.
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Thèses sur le sujet "Tea garden weeds"

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Ghosh, Chandra. « Biology of tea garden weeds in Darjeeling district of West Bengal(India) ». Thesis, University of North Bengal, 2006. http://hdl.handle.net/123456789/1060.

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Livres sur le sujet "Tea garden weeds"

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Yankee Magazine's Panty Hose, Hot Peppers, Tea Bags, and More-- For the Garden : 1,001 Ingenious Ways to Use Common Household Items to Control Weeds, B (Rodale Organic Gardening Book). Yankee Books, 2005.

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Yankee Magazine's Pantyhose, Hot Peppers, Tea Bags, and More-for the Garden : 1,001 Ingenious Ways to Use Common Household Items to Control Weeds, Beat ... and Save Time (Yankee Magazine Guidebook). Rodale Books, 2006.

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Chapitres de livres sur le sujet "Tea garden weeds"

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Worster, Donald. « John Muir and the Roots of American Environmentalism ». Dans Wealth of Nature. Oxford University Press, 1994. http://dx.doi.org/10.1093/oso/9780195092646.003.0018.

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In the wild garden of an early America there coiled and crawled the devil’s own plenty of poisonous vipers—cottonmouths, copperheads, coral snakes, the whole nasty family of rattlers and sidewinders. A naturalist roaming far from the settlements regularly ran the risk of a fatal snake bite. Fortunately, he was reassured by the field experts of the day, the deadly reptile always furnishes its own antidote. It conceals itself in the very plants whose roots can counteract its poison, plants like the so-called “Indian snakeroot.” As the viper sank its sharp fangs into your leg, you simply pulled up the roots of that plant, quickly chewed them down, and laughed in the viper’s face. You were instantly immune. How many backwoods naturalists and hunters died from believing that bit of advice is not known. Science, ever improving its hypotheses, now suggests carrying a snakebite kit in your pack or calling in a helicopter. But before we dismiss the old advice as completely foolish, we might ask whether it might not have had some useful, genuine logic in it. Sometimes the remedy for wounds does indeed lie near at hand among the shrubs and weeds in which the reptile lives; and sometimes dangerous forces do indeed suggest, or even contain, their own antidote. Take, for instance, the case of North America’s continuing environmental degradation. What we humans have done over the past five hundred years to maim this continent and tear apart its fabric of life is in large degree the consequence of the Judeo-Christian religious ethos and its modern secular offspring—science, industrial capitalism, and technology. I would put almost all the blame on the modern secular offspring, but I have to agree that religion too has been a deadly viper that has left its marks on the body of nature. Paradoxically, I would add what no one else seems to have noticed: an Indian snakeroot for this venom has appeared in the reptile’s own nest. The antidote for environmental destruction has been a movement called environmentalism and that movement has, in the United States, owed much of its program, temperament, and drive to the influence of Protestantism.
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