Effect of Irrigation Scheduling and Fertility Management on Growth and Yield Parameters of Basmati Rice

Abstract

The data revealed that the potential effect of irrigation scheduling and fertilizer management on plant height, number of tillers, dry matter accumulation (g plant-1), leaf area index, panicle length, number of panicle, number of grains per panicle and 1000- grains weight, and yields of Basmati rice. The maximum plant height and numbers of tillers were recorded in IW/CPE 1.0 up to panicle initiation stage and thereafter IW/CPE 1.2 up to dough stage and 150% RDN: 5 equal splits at 15, 25, 35, 45 & 60 DAT at all the stages of crop growth, while the minimum plant height and numbers of tillers were observed with the application of IW/CPE 0.8 throughout the growth stage and 100% RDN: 4 equal splits at 15, 30, 45 & 60 DAT at all the growth stages. Similarly, the maximum dry matter accumulation (g plant-1) and leaf area index were recorded in IW/CPE 1.0 up to panicle initiation stage and thereafter IW/CPE 1.2 up to dough stage and 150% RDN: 5 equal splits at 15, 25, 35, 45 & 60 DAT and significantly superior over rest of the treatments, while the minimum dry matter accumulation (g plant-1) and leaf area index were weighted with IW/CPE 0.8 throughout the growth stage and 100% RDN: 4 equal splits at 15, 30, 45 & 60 DAT. Yield attributing characters like panicle length, number of pancle, number of grains per panicle and 1000- grains weight exhibited variations due to different irrigation and fertilizer management. With the application of IW/CPE 1.0 up to panicle initiation stage and thereafter IW/CPE 1.2 up to dough stage and 150% RDN: 5 equal splits at 15, 25, 35, 45 & 60 DAT highest mean panicle length, number of pancle, number of grains per panicle and 1000- grains weight was recorded. The highest grain yield, straw yield and biological yield was recorded in IW/CPE 1.0 upto panicle initiation stage and thereafter IW/CPE 1.2 upto dough stage and 150% RDN: 5 equal splits at 15, 25, 35, 45 & 60 DAT and the lowest grain yield, straw yield and biological yield was recorded in IW/CPE 0.8 throughout the growth stage and 100% RDN: 4 equal splits at 15, 30, 45 & 60 DAT.