Latest News on Potato Production Research: Feb – 2020

Latest News on Potato Production Research: Feb – 2020

Latest News on Potato Production Research: Feb – 2020

The effect of climate change on global potato production

The effect of global climate change on global potato production was assessed. Potential yields were calculated with a simulation model and a grid with monthly climate data for current (1961–1990) and projected (2010–2039 and 2040–2069) conditions. The results were mapped and summarized for countries. Between 1961–1990 and 2040–2069 the worldwide (terrestrial excluding Antarctica) average temperature is predicted to extend between 2.1 and 3.2 C, counting on the climate scenario. The temperature increase is smaller when changes are weighted by the potato area and particularly when adaptation of planting time and cultivars is taken into account (a predicted temperature increase between 1 and 1.4 C). For this era , global potential potato yield decreases by 18% to 32% (without adaptation) and by 9% to 18% (with adaptation). At high latitudes, heating will likely cause changes within the time of planting, the utilization of later-maturing cultivars, and a shift of the situation of potato production. [1]

Energy use and economical analysis of potato production in Iran a case study: Ardabil province

The purpose of this study is to work out energy consumption of input and output utilized in potato production, and making a cheap analysis in Ardabil, Iran. For this purpose, the info were collected from 100 potato farms in Ardabil, Iran. Inquiries were conducted during a face-to-face interviewing November–December 2006 period. Farms were selected supported sampling method. The results indicated that total energy inputs were 81624.96 MJ ha−1. About 40% of this was generated by chemical fertilizers, 20% from diesel fuel and machinery. About 82% of the entire energy inputs utilized in potato production was indirect (seeds, fertilizers, manure, chemicals, machinery) and 18% was direct (human labor, diesel). Mean potato yield was about 28453.61 kg ha−1, it obtained under normal conditions on irrigated farming, and taking under consideration the energy value of the seed, internet energy and energy productivity value was estimated to be 20808.03 MJ ha−1 and 0.35, respectively, and therefore the ratio of energy outputs to energy inputs was found to be 1.25. [2]

Dickeya species: an emerging problem for potato production in Europe

Dickeya species (formerly Erwinia chrysanthemi) cause diseases on numerous crop and decorative plants world‐wide. Dickeya spp. (probably D. dianthicola) were first reported on potato within the Netherlands within the 1970s and have since been detected in many other European countries. However, since 2004–5 a replacement pathogen, with the proposed name ‘D. solani’, has been spreading across Europe via trade seed tubers and is causing increasing economic losses. Although disease symptoms are often indistinguishable from those of the skilled blackleg pathogen Pectobacterium spp., Dickeya spp. can initiate disease from lower inoculum levels, have a greater ability to spread through the plant’s plant tissue , are considerably more aggressive, and have higher optimal temperatures for disease development (the latter potentially resulting in increased disease problems as Europe’s climate warms). However, they also appear to be less hardy than Pectobacterium spp. in soil and other environments outside the plant. Scotland is currently the sole country in Europe to enforce intolerance for Dickeya spp. [3]

Split application of reduced nitrogen rate improves nitrogen uptake and use efficiency in sweetpotato

Splitting nitrogen (N) application is useful for enhancing sweetpotato growth and promoting optimum yields under reduced N rates; however, studies concerning how split N can affect sweetpotato N dynamics and utilization are limited. Field experiments were conducted from 2015 to 2016 to work out how split N application affects sweetpotato N uptake and N use efficiency (NUE) under a reduced N rate. Two cultivars (Xushu 22 and Shangshu 19) were planted under four N treatments, a standard basal application of 100 kg N ha−1 (100:0), a basal application of 80 kg N ha−1 (80:0), two equal split applications of 80 kg N ha−1 (basal and 35 days after transplanting, 40:40) and a N omission treatment (N0). [4]

Sustainable Water Management for Potato Production in Drought Prone Areas in Bangladesh

Water management practices are an important component of recent intensive potato (Solanum tuberosum) production. A farmer’s field based experiment was conducted in Multi Location Testing (MLT) site, Khalashpir, Rangpur under On-Farm Research Division, Rangpur during two years of 2014-2015 and 2015-2016 to seek out out the effect of irrigation scheduling with crop growth stages over conventional practice in potato. Four irrigation treatments were studied under the trial and therefore the treatments were, I1= Farmers practice, I2= Irrigation at stolonization and tuberization stages, I3= Irrigation at stolonization and bulking stages and I4= Irrigation at stolonization, tuberization and bulking stages. the very best yield was recorded in I3 (23.11 tha-1 and 20.27 tha-1) whereas lowest was in I1 (19.11 tha-1 and 17.13 tha-1). the very best margin of profit was recorded in I3 (BDT.74610 ha-1 and BDT. 68210 ha-1) and lowest was in I1 (BDT. 36660 ha-1 and BDT. 28060 ha-1). [5]

Reference

[1] Hijmans, R.J., 2003. The effect of climate change on global potato production. American journal of potato research, 80(4), (Web Link)

[2] Mohammadi, A., Tabatabaeefar, A., Shahin, S., Rafiee, S. and Keyhani, A., 2008. Energy use and economical analysis of potato production in Iran a case study: Ardabil province. Energy conversion and management, 49(12), (Web Link)

[3] Toth, I.K., Van Der Wolf, J.M., Saddler, G., LOjkowska, E., Hélias, V., Pirhonen, M., Tsror, L. and Elphinstone, J.G., 2011. Dickeya species: an emerging problem for potato production in Europe. Plant pathology, 60(3), (Web Link)

[4] Split application of reduced nitrogen rate improves nitrogen uptake and use efficiency in sweetpotato
Xiangbei Du, Min Xi & Lingcong Kong
Scientific Reports volume 9, (Web Link)

[5] Akhter-Ul-Alam, M., Ferdous, Z., Islam, K., Khatun, M. U., Akter, M. B., Laily, U., Anwar, M. and Sarker, K. (2017) “Sustainable Water Management for Potato Production in Drought Prone Areas in Bangladesh”, Annual Research & Review in Biology, 21(3), (Web Link)

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