Performance of T. Aman rice varieties as influenced by integrated nutrient management practices

Cowdung plays an important role to improve soil fertility and conserve soil productivity.The objective of this present study to evaluate the influence of integrated nutrient management practices on the performance of three transplant Aman rice varieties.This experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh.The treatments included were three varieties viz.BRRI dhan31 (V 1 ), BRRI dhan39 (V 2 ), and BRRI dhan41 (V 3 ) and five different integrated nutrient managements viz.recommended dose of chemical fertilizers (RF) (F 1 ), Cowdung @ 10 t ha -1 (F 2 ), 50% RF + Cowdung @ 5 t ha -1 (F 3 ), 75% RF + Cowdung @ 2.5 t ha -1 (F 4 ) and 100% RF + Cowdung @ 5 t ha -1 (F 5 ).The experiment was laid out in a randomized complete block design with three replications.It was found that variety and integrated nutrient managements had significant effect on all the crop characters except panicle length and 1000-grain weight.The performance of 50% RF + Cowdung @ 5 t ha -1 was found to be superior to any other nutrient management and BRRI dhan31 was found to be the best among the varieties.So, it can be concluded that BRRI dhan31 with 50% RF + Cowdung @ 5 t ha -1 emerged as the best one in terms of grain yield.