EFFECT OF SOIL ENHANCER (XXL) ON THE GROWTH, DEVELOPMENT AND YIELD ATTRIBUTES OF BRRI DHAN 29 AND HYBRID DHAN TAJ-1 IN BORO SEASON

Abstract

The experiment was conducted at the Research Field of Sher-e-Bangla Agricultural University, Dhaka-1207 during November, 2015 to July, 2016 to evaluate the effect of soil enhancer (XXL) on the growth, development and yield attributes of BRRI dhan 29 and Hybrid dhan Taj-1 in Boro season. The experiment consisted of two varieties (BRRI dhan 29 and Hybrid dhan Taj-1) and seven different concentrations of XXL {Control, 125% (1.88g/1.5 L), 100% (1.5g/1.5 L), 75% (1.125g/1.5 L), 50% (0.75g/1.5 L), 33% (0.50g/1.5 L) and 25% (0.38g/1.5 L)}. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. Significant variation was observed in different growth, development and yield contributing characters with XXL. Among the different XXL concentrations, 75% XXL provided the best result. Irrespective of varieties, the highest SPAD value of leaves (32.04 at 80 DAT), tillers hill-1 (15.26 at 80DAT), leaf area (29.26 cm2), fertile tillers hill-1 (11.35), filled grains panicle-1 (130.2), shoot dry matter content hill-1 (22.72 g) and grain yield (10.58 t ha-1) were achieved. With 75% XXL, BRRI dhan 29 and Hybrid dhan Taj-1 provided their highest grain yield (11.09 t ha-1 and 10.07 t ha-1, respectively) contributed by fertile tillers hill-1 (13.63 and 9.07) and filled grains panicle-1 (127.3 and 133.1). It was 45.16% and 31.81% higher than control, respectively. It meant that BRRI dhan 29 and Hybrid dhan Taj-1 performed well with 75% XXL applied.