COMPARATIVE STUDY OF USG AND NPK BRIQUETTE ON THE PERFORMANCE OF AROMATIC RICE VARIETY BRRI dhan70

Abstract

The experiment was conducted in the farm area of Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka during the period of July to November, 2017 for comparative study of USG (urea super granule) and NPK briquette on the performance of aromatic rice variety BRRI dhan70. In this experiment BRRI dhan70 aromatic rice were used as the test crop. The experiment comprised of the treatments of T 0 PKSZn, T 3 : Control, T 1 : 100% RFD, T 2 : 80% RFD + 2 USG within 4 hills, T 4 ii : 1 USG (1.8 g) within 4 hills + : 1 NPK briquette within 4 hills, T 5 : 2 NPK briquette within 4 hills and T 6 : 80% RFD + 1 NPK briquette within 4 hills. The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. Data were recorded on different yield contributing characters, yield and characteristics of post-harvest soil and statistically significant variation was recorded for most of the studied characters. The tallest plant (134.47 cm), maximum number of total tillers hill (19.07), maximum number of total grains panicle -1 (145.20), the longest panicle (28.75 cm), highest grain yield

(4.83 t ha -1 ) and highest straw yield

-1 (6.26 t ha ) was recorded from T 6 treatment, while the shortest plant (106.17 cm), minimum number of total tillers hill -1 (15.00), the shortest panicle (22.88 cm), minimum number of total grains panicle -1 (120.47), lowest grain yield (2.88 t ha ) and lowest straw yield (4.40 t ha (0.064%), highest available P -1

)was found in T 0

-1 -1 treatment. The highest total N (32.23 ppm) and highest exchangeable K (0.178 meq/100 g soil) was recorded in T 6 treatment, while the lowest total N (0.032%), lowest available P (17.29 ppm) and lowest exchangeable K (0.081 meq/100 g soil) was found in T 0 . Application of 80% RFD + 1 NPK briquette within 4 hills was the package of nutrient for achieving higher yield of aromatic rice (variety BRRI dhan70) at Tejgaon series soil of SAU farm.