Effect of moisture regimes and organic manures on growth and yield of direct seeded rice (Oryza sativa L.)

摘要

All the parameters like plant height, dry matter production at harvest, panicle/m2, fertile spikelet's/panicle, grain yield and water use efficiency were significantly influenced by the levels of moisture regimes except test weight. The highest plantheight (89.22 cm), dry matter production (987.33 g), panicles/m2 (288.09), fertile spikelet's/panicle (94.05) and grain yield (45.98 q/ha) were found significantly superior in treatment I, irrigation at 1 Days after disappearance of ponded water (DAD) totreatment I3 -irrigation at 5 DAD, but was statistically at par with I2 -irrigation at 3 DAD but test weight was found non-significant and more WUE was recorded in I3- which was at parity between I2. In case of organics, all parameters like dry matter production, panicle/m2, grain yield and water use efficiency were significantly influenced by the organics except plant height, fertile spikelet's/panicle and test weight. The maximum dry matter production (1160.02), panicle/m2 (295.01), grain yield (51.60 q/ha) and water use efficiency (59.95 kg/ha-cm) were found significantly superior in treatment F2-100 % RDF + Brown manuring (BM) to rest of the treatments, but in case of plant height, fertile spikelet's/panicle and test weight were observed non-significant. So, it may be concluded that treatment I, - irrigation at 1 DAD and treatment F2- 100% RDF + BM was observed superior to rest of the treatments.