Yield Gap Analysis and total Rainfall of Rice crop of Onset of Monsoon in Different Sectors of U.P
Singh Ajit*, Singh A.K., Gupta Smita, Shahi U.P.
Department of Agricultural Meteorology, N. D. University of Agriculture & Technology, Faizabad, India
1Department of Soil Science, S V P University of Agriculture & Technology, Meerut, India
*Corresponding author: Ajit Singh, Department of Agricultural Meteorology, N. D. University of Agriculture & Technology, Faizabad, Email: firstname.lastname@example.org
The onset date of south west monsoon in eastern U.P./central U.P. shifted to 19th/20th June from normal date 15th June. Total rainfall in relation to onset of monsoon decreased by 6% if monsoon reaches on 19th June in eastern U.P. as compare to rainfall of normal date (15th June) and 9.5%if monsoon reaches on 25th June. Consequent upon length of rainy season was also decreased from normal 108 days to 99 days in eastern U.P. whereas reduction in length of rainy season in other sectors of U.P. ranged between 12–13 days. Rainy day and rainfall intensity both reduced in all sectors of U.P. In eastern U.P. rainfall intensity reduced from 25 mm/day (1971–1990) to 17.2 mm/day (1992- 2011), i.e. 32% reduction hence crop planning may be made accordingly in respective sectors. Yield gap of crop has been calculated at particular amount of rainfall over the year of data with difference of maximum yield and minimum yield at same amount of rainfall. Variability of seasonal rainfall in different sectors of U.P. was also in same order and magnitude as that of total rainfall.