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Crop Weather Interaction in Potato in South Bengal Plains

Crop Weather Interaction in Potato in South Bengal Plains
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Author(s): S. Maji (Bidhan Chandra Krishi Viswavidyalaya, India), Pramiti K. Chakraborty (Bidhan Chandra Krishi Viswavidyalaya, India), S. Basu (Siksh ‘O' Anusandhan University, India), Sarika Jena (Odisha University of Agriculture and Technology, India), Ratneswar Poddar (Bidhan Chandra Krishi Viswavidyalaya, India), R. Nath (Bidhan Chandra Krishi Viswavidyalaya, India), P. Bandopadhyay (Bidhan Chandra Krishi Viswavidyalaya, India) and P. K. Chakraborty (Bidhan Chandra Krishi Viswavidyalaya, India)
Copyright: 2017
Pages: 37
Source title: Sustainable Potato Production and the Impact of Climate Change
Source Author(s)/Editor(s): Sunil Londhe (International Centre for Research in Agroforestry (ICRAF), India)
DOI: 10.4018/978-1-5225-1715-3.ch003

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Abstract

Potato is one of the main staple foods in West Bengal, where it ranks second in production after Uttar Pradesh. There is lots of variation in productivity of the crop. It is due to climatic variability which causes widespread disease infection in potato crop. The shifting of onset and withdrawal of monsoons has also proved to be a barrier in the productivity of the crop. The farmers are habituated to plant the crop within 15th of November; however this is being disrupted because of the shifting of withdrawal of monsoons. Potato is a thermo sensitive crop. The crop growth rate of potato is significantly affected by cumulative maximum and minimum temperatures. Leaf area index significantly decreased with the increase in cumulative maximum and minimum temperatures. Rainfall and relative humidity are two crucial factors that determine the incidence of late blight in potato, the most devastating disease in Bengal. Rainfall increased productivity by lowering soil temperature and reducing hydrolysis of starch respiratory losses from tubers.

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