EFFECT OF VARIOUS ORGANIC MANURE AND INORGANIC FERTILIZER ON THE YIELD AND QUALITY OF BORO RICE

Abstract

The experiment was conducted in the 1:ann of Sher-c-Bangla Agricultural tinivcrsity. Dhaka. Bangladesh during the period from December 2007 to April 2008 to study the effect of various organic manure and inorganic fertilizer on the yield and quality of boro rice. BRRI dhan29 was used as the test crop in this experiment. The experiment consisted of 8 treatments. Such as T O : Control. Ti: 100% Ni®P5K45S2o (Recommended dose). T 2: 50% NPKS ± 5 ton cowdung/ha. T: 70% NPKS +- 3 ton cowdung/ha. T 4 : 50% NPKS + 4 ton poultry manure/ha. T: 70% NPKS + 2.4 ton poultry manure/ha. T 6: 50% NPKS + 5 ton vermicompost!ha and T 7 : 70% NPKS + 3 ton vermicompost/ha. At M. 50, 70, 90 DAT and at harvest the tallest plant (24.18 cm, 31.34 cm. 44.67 cm. 67.05 cm and 89.00 cm) was recorded from Land the lowest(16.20 cm. 20.65 cm. 32.58 cm. 49.10cm and 64.59 cm) was observed from To. The maximum number of effective tillers per hill (13.52) was recorded front T5 and the minimum (6.07) was observed from To. The highest length of panicic (24.59 cm) was recorded from T5 and the lowest length of panicle (16.45 cm) was observed from To. The maximum number of total grain per plant (97.45) was recorded from T 5 and the minimum (69.13) was observed from To. The highest weight of 1000 seeds (21.80 g) was recorded from T5 and the lowest (16.73 g) was observed from T o . The highest grain yield (7.30 t/ha) was recorded from '1 5 again the lowest (2.06 i/ha) was observed from To. The highest straw yield (7.64 i/ha) was recorded from 15 and the lowest (4.63 i/ha) was observed from To. The highest N concentration in grain (0.761%) was recorded from T 3 and the lowest (0.566%) was observed from lo. The highest P concentration in grain (0.293%) was recorded from lic and the lowest (0.20 1%) was observed from To. The highest K concentration in grain (0.358%) was recorded from '1'5 again the lowest (0.262%) was observed from To. The highest S concentration in grain (0.126%) was recorded from Tc and the lowest (0.075%) was observed from T. The highest N concentration in straw (0.505%) was recorded from T 5 and the lowest (0.334%) was observed from T O . The highest P concentration in straw (0.087%) was recorded from 15 and the lowest (0.051%) was observed from T O . The highest K concentration in straw (1.175%) was recorded from T 5 and the lowest (0.778%) was observed from T o . The highest S concentration in straw (0.098%) was recorded from T 5 and the lowest (0.058%) was observed from To. The highest N uptake by grain (55.53 kg/ha) was recorded from ic and the lowest (0.566 kg/ha) was observed from To The highest P uptake by grain (21.38 kg/ha) was recorded from 1 5 and the lowest (4.14 kg/ha) was observed from T 11 . The highest K uptake by grain (26.12 kg/ha) was recorded from T5 and the lowest (5.39 kg/ha) was observed from •1•. The highest P uptake by straw (6.65 kg/ha) was recorded from T 5 and the lowest (2.36 kg/ha) was observed from T1. The highest K uptake by straw (89.78 kg/ha) was recorded from T and the lowest (36.10 kg/ha) was observed from T. The highest p11 of post harvest soil (6.35) was recorded front 13 and the lowest (5.70) was observed from 12. The highest organic matter in post harvest soil (1.445%) was recorded fromT 6 and the lowest (1. 150%) was observed from i'j. The highest available phosphorus in post harvest soil (25.53 ppm) was recorded from T 5 and the lowest (19.42 ppm) was observed from control. The highest exchangeable potassium in post harvest soil (0.166 me%) was recorded from T1 and the lowest (0.103 me%) was observed from control.