Relevant bibliographies by topics / Potato yield

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Potato yield'

Author: Grafiati
Published: 4 June 2021
Last updated: 5 February 2022

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Journal articles on the topic "Potato yield"

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Zymaroieva, Anastasiia, Tetiana Fedoniuk, Svitlana Matkovska, Olena Andreieva, and Victor Pazych. "Agroecological Determinants of Potato Spatiotemporal Yield Variation at the Landscape Level in the Central and Northern Ukraine." Grassroots Journal of Natural Resources 4, no. 2 (May 30, 2021): 34–47. http://dx.doi.org/10.33002/nr2581.6853.040203.

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Global food security largely depends on the crop yield increase, so the study of the yield-limiting factors of potato (the second bread) is a pressing issue today. This study determines the contribution of the agroecological factors, namely, bioclimatic variables, soil indicators, and factors of landscape diversity, to the variation in potato yields. Conducted in Polissya and Forest-steppe zones of Ukraine during 1991–2017, this study has not only addressed the relationship between ecological determinants and potato yields, but also considered crop yields as a dynamic system. The dynamics of potato yields from the mid-1990s to the present is described by a log-logistic model. There are statistically significant regression dependencies between potato yield parameters and agroecological factors. Potato yield is dependent on the diversity of landscape cover. The relationship between yield parameters and landscape-ecological diversity is non-linear, which determines the presence of optimal landscape structure for the highest potato yields. Among climatic factors, the continental climate is of the greatest importance for potato yield. The high sensitivity of potato yield parameters to soil indices was found, and mostly the soil texture components (silt content), which largely determines the potato yield spatial variation.
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Kateřina, Pazderů, and Hamouz Karel. "Yield and resistance of potato cultivars with colour flesh to potato late blight." Plant, Soil and Environment 63, No. 7 (July 19, 2017): 328–33. http://dx.doi.org/10.17221/371/2017-pse.

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The resistance to potato late blight (as AUDPC – the area under the disease progress curve) and yield were evaluated in precise field experiments with 13 colour-fleshed potato cultivars. Red Emmalie and Blaue Anneliese were the most profitable cultivars of potatoes with coloured flesh, the overall yield did not differ statistically from the control cv. Agria. Cv. Blaue Anneliese resistance to potato late blight was considerably better than both control cultivars, other 2 cultivars HB Red and Red Emmalie were similar to cv. Agria. Surprisingly, cv. Russet Burbank was found to be more resistant than most cultivars tested. A statistically significant weak dependence (r = 0.36) between the percentage of infestation of plants in the T6 evaluation date (6–8 August in individual years) and the yield was detected, the slightly stronger (r = 0.40) was the correlation between AUDPC values and total yields.
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Li, Qiang, and Suiqi Zhang. "Impacts of Recent Climate Change on Potato Yields at a Provincial Scale in Northwest China." Agronomy 10, no. 3 (March 20, 2020): 426. http://dx.doi.org/10.3390/agronomy10030426.

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Understanding the effects of climate change on potato yield is vital for food security in northwest China. Based on the long-term data of yields and meteorology, this study analysed the impacts of recent climate change on potato yields at a provincial scale in northwest China. The first difference method was used to disentangle the contributions of climate change from the changes in potato yield in two consecutive years. The moving average method was used to decouple the climate-induced yield of potato. The results showed that the yield and planting area of potato from the period 1982 to 2015 increased markedly, with inter-annual fluctuations. The temperature increased significantly during the potato growing period in northwest China, while other climatic factors did not change significantly. Specifically, the changing trends in climatic factors varied among different provinces. The key meteorological factors limiting potato yield were temperature, precipitation and diurnal temperature range, varying in the different provinces. Potato yields in Gansu, Shaanxi, Ningxia and Xinjiang decreased by 127, 289, 199 and 339 kg ha−1, respectively, for every 1 °C increase in daily maximum temperature. The potato yield in Xinjiang decreased by 583 kg ha−1 for every 1 °C increase in daily minimum temperature. For every 100 mm increase in precipitation, the potato yields in Gansu, Qinghai and Ningxia increased by 250, 375 and 182 kg ha−1, respectively. Combining the first difference method and the moving average method, precipitation was the dominant climatic factor affecting potato yield in rain-fed areas (Gansu, Qinghai and Ningxia). For areas with irrigation (Xinjiang) or relatively high rainfall (Shaanxi), maximum temperature was the deciding climatic factor affecting potato yield. Appropriate adaptation to climate change in the different regions will help to ensure potato production in northwest China.
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Hartemink, Alfred E. "Integrated Nutrient Management Research with Sweet Potato in Papua New Guinea." Outlook on Agriculture 32, no. 3 (September 2003): 173–82. http://dx.doi.org/10.5367/000000003101294442.

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This paper summarizes a series of field experiments that investigated the effects of organic and inorganic nutrients on sweet potato tuber yield in the humid lowlands of Papua New Guinea. In the first experiment, plots were planted with Piper aduncum, Gliricidia sepium and Imperata cylindrica, which were slashed after one year, whereafter sweet potato was planted. Sweet potato yield was lowest after Gliricidia fallow, but no yield differences were found after piper and imperata fallow. In the second season, there was no significant difference in sweet potato yields. The second experiment consisted of a factorial fertilizer trial with four levels of N (0, 50, 100, 150 kg ha–1) and two levels of K (0, 50 kg ha–1). Nitrogen fertilizers increased yield in the first season, but depressed tuber yields in the second and third seasons. Potassium fertilizer had no effect on marketable tuber yield. The third experiment consisted of a comparison between N from inorganic fertilizer and poultry litter at four rates (0, 50, 100, 150 kg ha–1). No difference was found between the inorganic fertilizer and poultry litter, and the highest yields were found at 100 kg N ha–1. In the second season no significant response was observed. Although yield variation was considerable, this series of experiments has shown that sweet potato yield can be significantly increased by inorganic or organic N applications. Sweet potato yields after fallows were less variable than after inorganic nutrient inputs. Inputs of inorganic fertilizer or poultry litter may strongly increase or decrease tuber yields.
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Tibiri, E. B., K. Somé, J. S. Pita, F. Tiendrébéogo, M. Bangratz, J. B. Néya, C. Brugidou, and N. Barro. "Effects of sweet potato feathery mottle virus, sweet potato chlorotic stunt virus and their co-infection on sweet potato yield in Western Burkina Faso." Open Agriculture 4, no. 1 (December 31, 2019): 758–66. http://dx.doi.org/10.1515/opag-2019-0076.

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AbstractTo determine the effects of sweet potato feathery mottle virus (SPFMV), Sweet potato chlorotic stunt virus (SPCSV) and their co-infection on sweet potato yield, twelve sweet potato varieties were assessed in a hotspot area in Western Burkina Faso. The experiment was carried out in a randomized complete-block design with the twelve varieties in three replications. Data were collected on plant growth parameters, plant virus symptoms and yield parameters. Additional testing for selected sweet potato viruses was done using a nitrocellulose membrane enzyme-linked immunosorbent assay (NCM-ELISA) and RT-PCR. SPFMV and SPCSV were the viruses detected in this study. Varieties Djakani and Ligri were virus-free and had the highest average yields out of twelve sweet potato varieties assessed. Field monitoring indicated that 58% of plants were found to be virus-infected. The results suggest that severe symptoms were associated with sweet potato virus disease (SPVD) and yield reduction. However, the interaction of SPCSV with other viruses, which may result in synergistic negative effects on sweet potato yield and quality, needs further research.
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Vangessel, Mark J., and Karen A. Renner. "Effect of Soil Type, Hilling Time, and Weed Interference on Potato (Solanum tuberosum) Development and Yield." Weed Technology 4, no. 2 (June 1990): 299–305. http://dx.doi.org/10.1017/s0890037x00025434.

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‘Atlantic’ and ‘Russet Burbank’ potato cultivars were grown on mineral and organic soils either with or without weeds and were hilled at two stages of potato development (potatoes cracking through the soil and potatoes 30 cm tall). A single hilling procedure was not adequate in either year for full-season weed control. Early hilling suppressed weeds and increased tuber yields more than conventional hilling on mineral soils in 1988 only. Early hilling tended to increase the relative biomass of C4weeds compared to C3weeds for both soils. Weeds reduced aboveground potato biomass on mineral and muck soils. However, reduced aboveground potato biomass measurements did not predict tuber yield reductions. Marketable yield of Russet Burbank potato was reduced by weed interference more than the yield of Atlantic on mineral soils when planted according to conventional cultural practices. However, the marketable yield of Atlantic potato was reduced more than Russet Burbank yield by weeds on muck soils. Weed interference influenced tuber quality on both mineral and muck soil.
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Kuhar, Thomas P., Michael P. Hoffmann, Lydia J. Stivers-Young, Susan B. Sterrett, and Michele Marini. "Potato Leafhopper Economic Injury Levels on Earlystage Snap and Dry Kidney Beans." HortTechnology 13, no. 4 (January 2003): 647–49. http://dx.doi.org/10.21273/horttech.13.4.0647.

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Field cage experiments were conducted in Ithaca, N.Y. in 2001 to determine the yield effect of potato leafhopper (Empoasca fabae) infestations on early-stage beans (Phaseolus vulgaris). Yields of `Hystyle' snap beans and `Montcalm' dry kidney beans were significantly reduced when infested by potato leafhopper at the cotyledon, two-leaf, and four-leaf stages. For snap beans, no differences in yield response from potato leafhopper were observed among the three plant growth stages. For dry beans, there was a difference in yield response between cotyledon and four-leaf-stage plants. Dynamic economic injury levels for potato leafhopper on early-stage beans are suggested.
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Sturz, A. V., W. Arsenault, and B. R. Christie. "Red Clover-Potato Cultivar Combinations for Improved Potato Yield." Agronomy Journal 95, no. 5 (September 2003): 1089–92. http://dx.doi.org/10.2134/agronj2003.1089.

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Maletta, Martha, Melvin Henninger, and Kristian Holmstrom. "Potato Leafhopper Control and Plastic Mulch Culture in Organic Potato Production." HortTechnology 16, no. 2 (January 2006): 199–204. http://dx.doi.org/10.21273/horttech.16.2.0199.

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Control tactics for potato leafhopper (Empoasca fabae) in certified organic potato (Solanum tuberosum) production were evaluated in 2003 and 2004. The 2004 split plot trial also compared silver plastic mulch culture with bare ground culture. The trials were conducted at the Rutgers Snyder Research and Extension Farm's certified organic fields, and production practices conformed to the standards of the National Organic Program (NOP). `Superior' potato was grown both years. Potato leafhopper (PLH) controls evaluated were: kaolin, pyrethrin, pyrethrin plus kaolin (2003), pyrethrin with silicon dioxide (2004), and silver plastic mulch (2003). Pyrethrin, pyrethrin plus kaolin, and pyrethrin with silicon dioxide reduced PLH nymph counts and PLH damage (hopperburn) ratings compared with the untreated check (UTC). Kaolin did not reduce nymph counts or hopperburn ratings. In 2003, nymph counts and hopperburn ratings were higher in the mulch treatment than in the UTC, yet the mulch treatment produced higher yield than the UTC. In 2004, mulch culture increased total and marketable yield compared with bare ground culture when PLH was controlled. Nymph counts and hopperburn ratings were higher until mid-July in the mulch plots than bare ground plots with the UTC and kaolin treatments. Controlling PLH and using plastic mulch culture significantly increased organic potato yields and tuber size. Marketable yields from the UTC were less than the New Jersey average of 275 cwt/acre for conventionally grown potato: yield was 38% of average on bare ground and 68% of average on mulch in 2003; 33% of average on bare ground and 38% of average on mulch in 2004. Reducing hopperburn with pyrethrin on plants grown on mulch (2004) resulted in marketable yield that was 75% of the New Jersey average.
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Ajis, Rakhmat Hanafi, and I. Handoko. "HUBUNGAN ANTARA WAKTU TANAM DENGAN HASIL DAN PROFITABILITAS BUDIDAYA KENTANG (Solanum tuberosum l.) DI CIKAJANG, GARUTRELATIONSHIPS BETWEEN PLANTING TIME AND YIELD AS WELL AS PROFITABILITY OF GROWING POTATO ... ." Jurnal Agromet Indonesia 24, no. 1 (June 19, 2010): 9. http://dx.doi.org/10.29244/j.agromet.24.1.9-13.

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Relationships between planting time and yield as well as profitability of growing potato were investigated in Cikajang, Garut, based on water balance analysis and survey to potato farmers of the area. In general, there were three planting dates namely December-January, April-May and August-September. Yield and profitability of growing potato for planting time of August-September was less compared to the other two planting times due to lack of soil-water availability related to less rainfall as well as its high rainfall variability during dry season (coefficient of variation = 133%). Yields of potato for planting times December-January, April-May and August-September were (21.4 + 3.4), (20.5 + 3.5) and (16.9 + 2.2) tonnes/ha, respectively.Relationships between planting time and yield as well as profitability of growing potato were investigated in Cikajang, Garut, based on water balance analysis and survey to potato farmers of the area. In general, there were three planting dates namely December-January, April-May and August-September. Yield and profitability of growing potato for planting time of August-September was less compared to the other two planting times due to lack of soil-water availability related to less rainfall as well as its high rainfall variability during dry season (coefficient of variation = 133%). Yields of potato for planting times December-January, April-May and August-September were (21.4 + 3.4), (20.5 + 3.5) and (16.9 + 2.2) tonnes/ha, respectively.
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Dissertations / Theses on the topic "Potato yield"

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Arpiwi, Ni Luh. "The application of novel methods for increasing the yield of small round seed potatoes (Solanum tuberosum L.) varieties Atlantic and Granola." University of Western Australia. School of Plant Biology, 2004. http://theses.library.uwa.edu.au/adt-WU2004.0020.

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Potato (Solanum tuberosum L.) varieties Atlantic and Granola are widely grown in Indonesia. The optimal method of cultivation in the tropics, due to the susceptibility of cut seed for disease, is by small (20 to 55 g) whole seed potatoes. However, the variety Atlantic produces mostly large tubers, which are not suitable for planting as whole seeds. Although Granola produces a reasonable proportion of small tubers it still produces a few in the larger size grades and there is no fresh market in Western Australia for the larger tubers for this variety. The aim of this study was to develop methods to be used in Western Australia that improve the yield of small seed potatoes for export to Indonesia. The influence of seed-potato storage duration (at 4°C) on subsequent stem growth was assessed after 30 days growth in a glasshouse (22°C/18°C, day⁄night). Seed potato storage for 22-28 (Atlantic) and 24-30 (Granola) weeks resulted in development of higher numbers of stems. A series of field experiment were designed to increase yield of small tubers. Apical sprout removal in Granola, but not Atlantic, increased the number of stems (by 27%), yield of 20-55 g potato (by 32%) and total yield (by 17%). Application of herbicide (paraquat + diquat) at low concentration during early tuber initiation decreased total yield in Atlantic (by 14%) and Granola (by 16%). Treating whole seed potatoes with carvone vapor two weeks before planting had no influence on stem or tuber number in both Atlantic and Granola but in Atlantic only, the total yield was reduced by 12%. Spraying plants with paclobutrazol during early tuber initiation inconsistently influenced tuber number and yield between the two varieties and two experiments. The influence of gibberellic acid (GA3) on stem number, total tuber number, yield of 20-55 g tubers and total yield was investigated by dipping seed pieces in a GA3 solution (20 mg⁄L) two days prior to planting. In Atlantic, GA3 treatment increased stem number (by 147%), total tuber number (by 75%) and yield of 20-55 g tubers (by 330%) without influencing total yield. In Granola, GA3 treatment increased stem number (by 50%), total tuber number (by 15%), yield of 20-55 g tubers (by 21%) and total yield (by 10%) The influence of gibberellic acid application (20 mg⁄L) to seed pieces before planting increased the number of small tubers through increased stem number. The shift toward a greater proportion of small tubers, without reducing total yield, had a greater influence in Atlantic than that in Granola. Treatment of GA3 and paclobutrazol together decreased total yield compared to that of GA3 alone
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Lucas, Carlos Krus Galvão. "Biogas production from potato peel waste." Master's thesis, Faculdade de Ciências e Tecnologia, 2014. http://hdl.handle.net/10362/12337.

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Hansford, Rachael J. "Effect of AM colonization on growth and yield in potato." Thesis, University of Aberdeen, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.400721.

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This thesis aims to investigate the effect AM fungal inoculation and subsequent colonisation on the growth and tuber yield of potato. Different AM fungal inocula used produced different responses.  Some fungal inocula did not colonise potato roots at all, even in suitable growth substrates (i.e. Glomus fasiculatum).  It was observed that Glomus mosseae and Vaminoc Tâ formed the best associations with potato.  However, the viability of inocula is a major concern for their commercial use. Phosphate had a significant effect on the growth of potato and AM formation.  Plants grown in low phosphate were smaller in size and produced lower numbers of market sized tubers.  Mycorrhizal formation was promoted at low P soil concentrations.  Mycorrhizal plants grown at low P had increased yields of market sized tubers and tuber weights compared to the NM plants.  This was mainly due to improved P nutrition and resulted in a tuber yield comparable to that produced by plants grown in high P.  Increasing soil P concentrations decreased the level of AM formation.  If mycorrhizal plants were given high P or grown at a low light intensity then no beneficial effects of colonisation were seen.  Plants grown at low light intensities could not cope with the increased below ground demand of tubers and AM and this resulted in a decrease in the shoot C concentration.  Early tuber removal decreased C-assimilation, increased subsequent tuber number and decreased the level of AM formation.  This indicated that potato plants need to maintain a high photosynthetic rate in order to maintain an AM association.  A decrease in C-assimilation caused a decrease in AM formation. The formation of AM in different potato cultivars was investigated.  It was shown that different cultivars had varying responses to AM fungal inoculation.  Those cultivars that had low disease resistance to microbial pathogens had higher levels of AM colonisation.  Correlation analysis showed that there was an inverse relationship between disease resistance, and AM colonisation, irrespective of the growth of the potato.  This indicated that breeding for disease resistance may have bred against the formation of AM in potato.
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Hogge, Murray Charles. "Effects of site, season and husbandry on yield and processing quality of the potato variety Pentland Dell." Thesis, University of Cambridge, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.330034.

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Al-Farhan, H. N. "The effects of plant growth substances on the yield of potatoes." Thesis, Bangor University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234517.

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Soenarto. "Morphological components of yield in sweet potato (Ipomoea batatas (L.) Lam.)." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ61177.pdf.

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Carrillo, Salazar Jose Alfredo. "An examination of the prediction of yield from two potato models." Thesis, University of Nottingham, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.342033.

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Ibrahim, Razi. "Predicting Potato Yield Loss Due to Metribuzin Sensitivity in North Dakota." Thesis, North Dakota State University, 2018. https://hdl.handle.net/10365/28860.

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A linear-log model to predict yield loss due to metribuzin injury was established by Love et. al. in 1993. Two experiments were conducted in 2016 and 2017 to evaluate and improve this model for application in North Dakota (ND). Metribuzin was applied (1.12 a.i./ha) when potato plants were 20-30 cm tall at Inkster, ND. The model did not accurately predict yield loss in 2016 but performed better in 2017. Foliar injury was more correlated with yield reduction than relative plant height. Results also indicated that new models that used foliar injury at 21 days after treatment (DAT) data and at 7 DAT data, most accurately predicted total yield loss and marketable yield loss, respectively. The new model performed similar to the previous model, but unlike previous model it can predict yield loss very early in growing season (21 DAT).
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Bunyolo, A. M. "Effects of fertilizer nitrogen and water supply on growth and yield of the potato crops." Thesis, University of Reading, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.379220.

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Mohabir, G. "Biochemical investigations of yield-limitations in potatoes (Solanum tuberosum L.) under warm tropical conditions." Thesis, University of Reading, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.380838.

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Books on the topic "Potato yield"

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Molloy, Matthew. An investigation of various cultural factors affecting the seed yield of potatoes grown from minitubers of the cultivar record. Dublin: University College Dublin, 1995.

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Hackett, Richard A. The effects of mulch, plant population and nitrogen on the production of early potatoes. Dublin: University College Dublin, 1995.

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Attila, Bussay. A burgonyatermés szimulálása növény-időjárás modellak segítségével =: Simulation of the potato yields by the help of crop-weather models. Budapest: Országos Meteorológiai Szolgálat, 1995.

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Macoun, W. T. Importance of planting good seed potatoes for high yields: The quality of the seed planted is of more importance than the variety ... Ottawa: Dept. of Agriculture, 1997.

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1995 potato objective yield survey: Interviewer's manual. Washington, D.C: U.S. Dept. of Agriculture, National Agricultural Statistics Service, Agricultural Statistics Board, 1995.

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McBride, Robin L. Potash fertilizer effects on yield, hollow heart, and nutrient levels in potato tubers and petioles. 1985.

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Dissanayake, A. M. U. Alternative Methods in Estimating Average Yield of Potato and Some Practical Difficulties. Department of Census and Statistics, 1999.

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Nielson, Mark T. The relationship of seed size, spacing, stem and eye number to yield of Nooksack and Russet Burbank potato cultivars. 1986.

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Wallace, John Craig. Yield and market suitability of six potato clones at three harvest dates under varying irrigation and nitrogation regimes. 1991.

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Tharmarajah, S. K. Soil temperature suppression on growth and yield of potato (Solanum tuberosum L.) in warm climates of Sri Lanka. 1992.

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Book chapters on the topic "Potato yield"

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Vos, J. "Potato." In Crop Yield, 333–54. Berlin, Heidelberg: Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-642-58554-8_11.

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Jansky, Shelley H., David M. Spooner, and Paul C. Bethke. "Potato." In Yield Gains in Major U.S. Field Crops, 195–217. Madison, WI, USA: American Society of Agronomy and Soil Science Society of America, 2015. http://dx.doi.org/10.2135/cssaspecpub33.c8.

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Rawlins, Stephen L., Gaylon S. Campbell, Ronald H. Campbell, and John R. Hess. "Yield Mapping of Potato." In Site-Specific Management for Agricultural Systems, 59–68. Madison, WI, USA: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, 2015. http://dx.doi.org/10.2134/1995.site-specificmanagement.c5.

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Habyarimana, Ephrem, and Nicole Bartelds. "Yield Prediction in Sorghum (Sorghum bicolor (L.) Moench) and Cultivated Potato (Solanum tuberosum L.)." In Big Data in Bioeconomy, 219–33. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-71069-9_17.

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AbstractSorghum and potato pilots were conducted in this work to provide a solution to current limitations (dependability, cost) in crop monitoring in Europe. These limations include yield forecasting based mainly on field surveys, sampling, censuses, and the use of coarser spatial resolution satellites. We used the indexes decribing the fraction of absorbed photosynthetically active radiation as well as the leaf areas derived from Sentinel-2 satellites to predict yields and provide farmers with actionable advice in sorghum biomass and, in combination with WOFOST crop growth model, in cultivated potatoes. Overall, the Bayesian additive regression trees method modelled best sorghum biomass yields. The best explanatory variables were days 150 and 165 of the year. In potato, the use of earth observation information allowed to improve the growth model, resulting in better yield prediction with a limited number of field trials. The online platform provided the potato farmers more insight through benchmarking among themselves across cropping seasons, and observing in-field variability Site-specific management became easier based on the field production potential and its performance relative to surrounding fields. The extensive pilots run in this work showed that farming is a business with several variables which not all can be controlled by the farmer. The technologies developed herein are expected to inform about the farming operations, giving rise to well-informed farmers with the advantage to be able to adapt to the circumstances, mitigating production risks, and ultimately staying longer in the business.
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Pavlista, Alexander D. "Sulfur and Marketable Yield of Potato." In Agronomy Monographs, 171–82. Madison, WI, USA: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, 2015. http://dx.doi.org/10.2134/agronmonogr50.c11.

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Kawaye, Floney P., and Michael F. Hutchinson. "Maize, Cassava, and Sweet Potato Yield on Monthly Climate in Malawi." In African Handbook of Climate Change Adaptation, 617–37. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-45106-6_120.

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AbstractClimate change and climate variability in Malawi have negatively affected the production of maize, a staple food crop. This has adversely affected food security. On the other hand, there have been increases in growing area, production, yield, consumption, and commercialization of both cassava and sweet potato. Factors behind these increases include the adaptive capacity of these crops in relation to climate change and variability, structural adjustment programs, population growth and urbanization, new farming technologies, and economic development. Cassava and sweet potato are seen to have the potential to contribute to food security and alleviate poverty among rural communities.This study used a simple generic growth index model called GROWEST to model observed yields of maize, cassava, and sweet potato across Malawi between 2001 and 2012. The method can be viewed as a hybrid approach between complex process-based crop models and typical statistical models. For each food crop, the GROWEST model was able to provide a robust correlation between observed yields and spatially interpolated monthly climate. The model parameters, which included optimum growing temperatures and growing seasons, were well determined and agreed with known values. This indicated that these models could be used with reasonable confidence to project the impacts of climate change on crop yield. These projections could help assess the future of food security in Malawi under the changing climate and assist in planning for this future.
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Ragassi, Carlos Francisco, Carlos Alberto Lopes, and Ítalo Moraes Rocha Guedes. "Effect of Soil Compaction Alleviation on Quality and Yield of Potato." In Sustainable Potato Production: Global Case Studies, 403–18. Dordrecht: Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-4104-1_24.

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Iqbal, M. Mohsin, S. Mahmood Shah, W. Mohammad, and H. Nawaz. "Field response of potato subjected to water stress at different growth stages." In Crop Yield Response to Deficit Irrigation, 213–23. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4752-1_16.

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Zebarth, Bernie J., Gilles Bélanger, Athyna N. Cambouris, and Noura Ziadi. "Nitrogen Fertilization Strategies in Relation to Potato Tuber Yield, Quality, and Crop N Recovery." In Sustainable Potato Production: Global Case Studies, 165–86. Dordrecht: Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-4104-1_10.

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Essah, Samuel Y. C. "Potato Tuber Yield, Tuber Size Distribution, and Quality as Impacted by Preceding Green Manure Cover Crops." In Sustainable Potato Production: Global Case Studies, 99–115. Dordrecht: Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-4104-1_6.

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Conference papers on the topic "Potato yield"

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Kolychikhina, M. S. "Positive effect of preparations with antiviral properties on potato productivity." In Растениеводство и луговодство. Тимирязевская сельскохозяйственная академия, 2020. http://dx.doi.org/10.26897/978-5-9675-1762-4-2020-111.

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In the small-plot experiment of the Russian State Agrarian University - Moscow Timiryazev Agricultural Academy against potato viruses in 2014-2019 were tested some kinds of preparations with antiviral activity: Pharmayod, GS (100 g/l of iodine); Immunocytophyte, TAB (20 g/kg arachidonic acid ethyl ester); Ecogel, WS (30 g/l of chitosan lactate); Amulet, TAB (composition of linear polyaminosaccharides (chitosan) in succinic acid solution); Zerox, WS (3000 mg /l colloidal silver); Viron, WS (biostimulant based on urea and citric acid with the addition of essential oils). According to the results of the studies, it was found that, in addition to the effect on the causative agents of viral diseases of potatoes, all tested preparations had a stable tendency to maintain or increase the yield of tubers of infected plants. The increase in the yield of tubers ranged from 0.5 to 1.3 kg/m2. In 2016 under the production conditions of Astrakhan region on the potato variety Impala infected with the PVM + PVS and PVM + PVS + PVY virus complexes a comparative assessment of the effect of Pharmayod and Immunocytophyte revealed a significant increase in the gross and marketable yield of potato plants in the areas with the use of these preparations compared to with control.
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Андрийчук, Татьяна, and А. Скорейко. "Влияниe биопрепаратов на урожайность здоровых и пораженных фомозом клубней картофеля." In International Scientific Symposium "Plant Protection – Achievements and Prospects". Institute of Genetics, Physiology and Plant Protection, Republic of Moldova, 2020. http://dx.doi.org/10.53040/9789975347204.09.

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The results of studies on the effect of Trichodermin, Gaupsin, PhytoDoctor, Planriz on the yield of healthy and phomosis-affected potato tubers are presented. The positive effect of all applied biological products on potato productivity is shown. Pre-planting treatment and two foliar spraying contributed to an increase in yields, both infected (by 2.3-11.7 %) with phomosis, and healthy (by 7.9-16.4 %) potato tubers.
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Martynova, K. V., I. N. Romanova, and N. V. Ptitsyna. "Nfluence of predecessors on the yield and quality of potato tubers of domestic and foreign selection." In Растениеводство и луговодство. Тимирязевская сельскохозяйственная академия, 2020. http://dx.doi.org/10.26897/978-5-9675-1762-4-2020-112.

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As a result of the conducted research, it was found that in the conditions of the non-Chernozem zone, potato varieties of Madeira and Morning on sod-podzolic medium-loamy medium-cultivated soil are able to form a yield of tubers up to 33 t / ha. The influence of the sideral precursor on the yield and quality of potato tubers is scientifically justified.
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Dahal, Keshav. "Growth at Elevated CO2 Enhanced Photosynthetic Performance and Potato Yield." In ASPB PLANT BIOLOGY 2020. USA: ASPB, 2020. http://dx.doi.org/10.46678/pb.20.1052626.

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Khan, Humna, Aitazaz Ahsan Farooque, Bishnu Acharya, and Travis Esau. "Effect of within Field Soil Variability on Potato Tuber Yield." In 2019 Boston, Massachusetts July 7- July 10, 2019. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2019. http://dx.doi.org/10.13031/aim.201900332.

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VOJEVODA, Lidija, Anita OSVALDE, Gunta ČEKSTERE, and Andis KARLSONS. "ASSESSMENT OF THE IMPACT OF VERMICOMPOST AND PEAT EXTRACTS ON NUTRIENT ACCUMULATION IN TUBERS AND POTATO YIELD." In RURAL DEVELOPMENT. Aleksandras Stulginskis University, 2018. http://dx.doi.org/10.15544/rd.2017.166.

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Investigations on the potential beneficial effect of humic substances on crop plant cultivation under extremely diverse soil and climatic conditions is of global character, thereby knowledge obtained on the basis of local investigations are of great importance world-wide. The aim of the research was to evaluate the effect of different application methods (seed tuber treatment and foliar application) of commercially-produced peat and vermicompost extracts on nutrient uptake in tubers and yield of potato (Solanum tuberosum L.) using field experiments in organic farming system with potato variety ‘Borodjanskij Rozovij’. The tested extracts from the organic products included: peat extract (K45) and vermicompost extract (B45) obtained at +45°C by cavitation. The investigation was carried out at Stende Research Centre (Institute of Agro-resources and Economics) from 2011 to 2012. The chemical composition (N, P, K, Ca, Mg, S, Fe, Mn, Zn, Cu, Mo, B) of potato tubers was determined. The application of organic extract from vermicompost had a stimulating effect on mineral nutrient as N, P, K, Mg, and S accumulation in potato tubers, but 50% of cases showed reduction in Ca and Cu content that could influence the storage of tubers. The use of peat extract was significantly effective when the tubers were treated before planting. On average, tuber treatment and foliar spray with organic extracts contributed to 10% of tuber yield increase.
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Скорейко, А., Татьяна Андрийчук, and Р. Билык. "Влияние биопрепаратов на приживаемость и продуктивность растений in vitro." In International Scientific Symposium "Plant Protection – Achievements and Prospects". Institute of Genetics, Physiology and Plant Protection, Republic of Moldova, 2020. http://dx.doi.org/10.53040/9789975347204.58.

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The results of studies of the influence of biologicals on the process of adaptation of microclonal potato plants to in vivo conditions in greenhouse and field conditions are presented. Treatment of plant material with biological products Planriz and PhytoDoctor promotes the adaptation of in vitro potato plants to in vivo conditions, increases the survival rate of up to 97,8% of potato seedlings and increases the yield of mini-tubers.
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Lefko, Stephen A., Larry P. Pedigo, and Marlin E. Rice. "Potato Leafhopper-Resistant Alfalfa: Yield Advantages and New Pest Management Guidelines." In Proceedings of the 1995 Integrated Crop Management Conference. Iowa State University, Digital Press, 1997. http://dx.doi.org/10.31274/icm-180809-570.

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Dugalic, Marijana, Ljiljana Boškovic Rakočevic, Vera Rajicic, and Dragan Terzic. "UTICAJ NAČINA PRIMENE MINERALNIH ĐUBRIVA NA PRINOS KROMPIRA." In SAVETOVANJE o biotehnologiji sa međunarodnim učešćem. University of Kragujeva, Faculty of Agronomy, 2021. http://dx.doi.org/10.46793/sbt26.079d.

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This study showed the effect of different methods of application of mineral fertiliser rates on the yield of two potato cultivars grown under the agroenvironmental conditions of the Radočelo Mountain massif on a luvisol exhibiting rather favourable agrophysical and some what poorer agrochemical properties. In 2018 and 2019, a trial with potato cvs. ‘Arizona’ and ‘Esmee’ was established. Planned rates of mineral fertilisers (N200, P150, K150) were applied as two treatments: treatment 1 – fertiliser rates were ploughed in during autumn, and treatment 2 – one half of the planned rates was applied during seedbed preparation and the other half in-furrow at planting. The results showed that the treatment involving the application of one half of the fertiliser rate before planting, and the other half at planting resulted in higher total yields of both potato cultivars compared with the placement of the whole rate of fertilisers during deep ploughing in autumn.
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Loretan, P. A., C. K. Bonsi, W. A. Hill, C. R. Ogbuehi, D. G. Mortley, J. Y. Lu, C. E. Morris, and R. D. Pace. "Sweet Potato Growth Parameters, Yield Components and Nutritive value for CELSS Applications." In Intersociety Conference on Environmental Systems. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1989. http://dx.doi.org/10.4271/891571.

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Reports on the topic "Potato yield"

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Nair, Ajay, Jennifer Tillman, Ray Kruse, and Dana Jokela. Effect of Plastic Mulch on Sweet Potato Yield and Quality. Ames: Iowa State University, Digital Repository, 2015. http://dx.doi.org/10.31274/farmprogressreports-180814-373.

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Author, Not Given. Growth, yield and plant water relationships in sweet potatoes in response to carbon dioxide enrichment: Progress report. Office of Scientific and Technical Information (OSTI), January 1986. http://dx.doi.org/10.2172/6414939.

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Forecasting potato and sweetpotato yields for 2050. International Potato Center, 2016. http://dx.doi.org/10.4160/9789290604785.

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Response of vegetation to carbon dioxide. Growth, yield and plant water relationships in sweet potatoes in response to carbon dioxide enrichment 1986. Office of Scientific and Technical Information (OSTI), August 1998. http://dx.doi.org/10.2172/639722.

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