Abstract
Rainfall study of Dhubri district of Assam
Highlights
Rainfall is one of the important factors for crop planning under rainfed condition
The data analysis was done by using Weathercock v 3.1 software developed by Central Research Institute for Dry Land Agriculture (CRIDA)
The mean annual rainfall of Dhubri was found to be 2309 mm and it varied from lowest of 1376mm and highest of 3941mm with SD of 747mm and CV% of 32.4.The probability of dry week, P(D) was found to be 85% during most of the rainy season period (Fig.1).The initial dry spell results revealed that Dhubri district experiences dry spell during early and more during middle stages as compared to later stages
Summary
Rainfall is one of the important factors for crop planning under rainfed condition. Understanding of rainfall patterns of a region is of utmost importance for successful planning of crops in a profitable farming mode. Cropping pattern is suggested considering the rainfall probability at different levels (Mahale and Dhane, 2003). As dependency of 70% population of the district is on agriculture and rainfall is deciding factor for success of rainfed agriculture, an attempt was made to understand the rainfall climatologyby analyzing temporal and spatial rainfall distribution and its probability of occurrence of dry and wet spell and their distribution by analyzing rainfall data.
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