RESPONSE OF LENTIL TO DIFFERENT LEVELS OF NITROGEN AND PHOSPHOROUS

Abstract

An experiment was conducted at the Agronomy field of Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka during the period from October 2008 to March 2009 to evaluate the response of lentil (BARI masur-6) to different levels of nitrogen and phosphorous. The experiment comprised four levels of nitrogen viz N 0 (0 kg N ha -1 ), N 1 (10 kg N ha -1 ), N 2 (20 kg N ha ) and N 3 (30 kg N ha -1 ) and four levels of phosphorus viz. P 0 (0 kg P (20 kg P 2 O 5 ha -1 ), P 2 (40 kg P 2 O 5 ha -1 ) and P 3 (60 kg P 2 O 5 ha -1 2 ). The experiment was laid out in a Randomized Complete Block Design (factorial) with three replications. The data recorded from the experiment revealed that the tallest plant, the highest branches plant -1 and dry weight plant -1 were recorded from (20 kg N ha -1 (N 2 ). The highest pods plant -1 , 1000 grain weight, grain yield (1768.00 kg ha -1 ) and stover yield (3301 kg ha -1 O 5 ha -1 ) were also found from 20 kg N ha . Regarding phosphorus effect it revealed that the highest value of growth, yield and yield contributing parameters all were obtained from the application of 40 kg P 2 O 5 ha -1 . The respective highest values obtained from phosphorus application at 40 kg P 2 O 5 ha -1 were 28.38 cm, 12.99, 10.17g, 109.60, 21.20 g, 1695.00 kg ha -1 and 3217.75 kg ha -1 for plant height, branches plant , dry weight plant -1 , pods plant -1 , 1000 grain weight, grain yield (kg ha -1 ) and stover yield. In interaction effect, it was observed that N 2 P 2 (20 kg N ha -1 -1 × 40 kg P ) showed the highest grain yield as 2145.00 kg ha -1 and stover yield as 3545.00 kg ha -1 . The control treatment either as individual or interaction had the lowest

-1 ), P 2 O 5 1 ha -1 -1 performance in respect of growth, yield attributes and yield of the crop.