IMPACT OF USING METALAXYL BASED FUNGICIDES AGAINST LATE BLIGHT OF POTATO

摘要

An experiment was conducted on potato (var. Kufri Anand) during October to February for 3 years (2002-03, 2003-04 and 2004-05) to study the effect of depth of placement of drip tape at five depths namely, surface (0), 5, 10, 15 and 20 cm. Distribution of soil water under field experiment and in model simulation at different growth stages agreed closely and the differences were statistically insignificant. Hydrus-2D model helped in designing the subsurface drip system for efficient use of water with minimum drainage in potato crop. Maximum yield was obtained by applying 23.6 cm of irrigation water and by placing the drip tape at 10 cm depth in the sandy loam soil of the experimental site.