GROWTH AND YIELD VARIATIONS IN LENTIL FERTILIZED WITH DIFFERENT FORMS OF UREA

Abstract

The experiment was conducted at the experimental field of Sher-e-Bangla Agricultural University, Dhaka during rabiseason from November 2012 to March 2013 to study the response of growth and yield of lentil was cultivated with different forms of urea [prilled urea, (PU) and urea super granules, (USG)].The variety BARImasur6 was used as test crop. The treatment consisted of fourteen variations as T1 = Prilled urea (PU) broadcasted, T2= PU given between two rows, T3 = USG placed at 10 cm distance (avoid one row), T4 = USG placed at 10 cm distance (avoid two rows), T5 = USG placed at 10 cm distance (avoid three rows), T6 = USG placed at 20 cm distance (avoid one row), T7 = USG placed at 20 cm distance (avoid two rows), T8 = USG placed at 20 cm distance (avoid three rows), T9 = USG placed at 30 cm distance (avoid one row), T10 = USG placed at 30 cm distance (avoid two rows), T11 = USG placed at 30 cm distance (avoid three rows), T12 = USG placed at 40 cm distance (avoid one row), T13 = USG placed at 40 cm distance (avoid two rows), T14 = USG placed at 40 cm distance (avoid three rows). USG (1.8 g) placed at 10 cm depth in each case. The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. Results showed significant variations among the treatments in respect of major studied parameters. The tallest plant, maximum branches plant-1 and above ground dry weight plant-1 at each growth stage were observed with T6 [USG placed at 20 cm distance (avoid one row)] and lowest value of these parameters were recorded fromT14 [USG placed at 40 cm distance (avoid three rows)].Pods plant-1(47.96), seeds pod-1(2.14), 1000 seed weight (26.33g), seed yield (2.11t ha-1), stover yield (2.87t ha-1) and biological yield (4.98t ha-1) were recorded maximum with T6[USG placed at 20 cm distance (avoid one row)] and minimum values were recorded fromT14[USG placed at 40 cm distance (avoid three rows)] in all these parameters.USG placed at 10 cm depth at 20-30 cm distance showed similar performance. It was evident that USG performed better than prilled urea.