Spatial and Temporal Rainfall Analysis of the Bidi Tobacco Growing Areas of India.

The monsoon extremities, such as heavy rainfall, drought, and cyclones are becoming frequent across India causing substantial damage to commercial crops. To predict/identify the trend in rainfall of Bidi tobacco growing areas were studied for variability, trend, detection any change monthly over years (1990-2020) using Mann-Kendall analysis Sen’s slope tests. Monthly three unique production zones has shown distinct trends. A positive was observed March, April, August, September, November, December while negative trends June July months Gujarat. During crop growth period, is except October, magnitude negligible. However, supplemental irrigation be planned during water deficit periods nursery (June July) critical periods. In Karnataka, a from February October December, January. high January (+) September (-) significant. period coincided with harvesting hence, may not get affected. causes detrimental effect. mitigate inundation proper drainage facility should created through field channels flush out excess avoid saturation at root zone this especially extremely sensitive poor aeration anaerobic conditions. January, February, June, Andhra Pradesh, whereas & November which might significantly affect tobacco. same can utilized July-August moisture conservation measures.