EFFECT OF PGR-BIOFERTI ON THE GROWTH AND YIELD OF T. AMAN

Abstract

The experiment was conducted in the Farm of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during the period from July to November, 2015 to study the effect of PGR-Bioferti on the growth and yield of T. Aman. BRRI dhan BR 11 (Mukta) was used as the test crop in this experiment. The experiment comprised of 9 treatments as- T : Control condition (No chemical fertilizer, no PGR-Bioferti), T 2 1 : Recommended Fertilizer Doses-RFD (120, 20, 80, 16 and 2 kg ha -1 of N, P, K, S and Zn, respectively), T : RFD + 2 times spray of PGR-Bioferti, T 4 : RFD + 1 time spray of PGR-Bioferti, T 3 : ½ RFD + 2 times spray of PGR-Bioferti, T 6 5 : ½ RFD + 1 time spray of PGR-Bioferti, T : No chemical fertilizer + 2 times spray of PGR-Bioferti, T : No chemical fertilizer + 1 time spray of PGR-Bioferti and T 9 8 : RFD + soil application of PGR-Bioferti. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. Data on different yield attributes, yield, nutrient content in grain and straw, nutrient uptake by grain and straw and status of post harvest soil were recorded and significant variation was observed for different treatments. At the time of final harvest, the longest plant (128.23 cm) was recorded from T 3 , whereas the shortest plant (104.42 cm) from T . The maximum number of tillers hill -1 (15.60) was observed from T and the minimum number (11.87) from T 1 . The highest grain yield (4.91 t ha ) was recorded from T 3 , whereas the lowest (2.64 t ha -1 ) from T treatment. The highest N, P and K uptake by grain (33.71 kg ha -1 , 13.38 kg ha 1 -1 and 17.89 kg ha -1 ) was observed from T , whereas the lowest N, P and K uptake by grain (11.88 kg ha -1 , 5.64 kg ha -1 3 and 5.89 kg ha -1 ) was recorded from T . The highest N, P and K by straw (27.40 kg ha -1 , 3.94 kg ha -1 and 72.17 kg ha ) was found from T 3 , while the lowest N, P and K uptake by straw (14.44 kg ha , 1.64 kg ha -1 and 36.68 kg ha -1 ) from T . The highest organic matter (1.42%) was found from T 3 1 and the lowest organic matte (1.31%) was observed from T treatment. Applications of RFD + 2 times spray of PGR-Bioferti was the superior among the other treatments in consideration of yield attributes and yield of BR 11 transplanted aman rice under the climatic condition of Bangladesh.

1 -1 1 3 -1 1 -1 7