Studies on tillage, weed and nutrient management practices on growth and yield in rice

A field experiment was conducted at Marathwada Krishi Vidyapeeth, Parbhani, during wet season 2011. The experiment was laid out with eight treatment combinations involving tillage operation, weed and nutrient management. Rice grain and straw yield were significantly more under conventional tillage practice than conservation tillage owing to higher values of growth and yield attributes of rice under conventional tillage. However, conservation tillage showed significantly higher values of available N, P2O5, K2O, Fe and BD than conventional tillage. Amongst management practices recommended dose of fertilizer (RDF @ 80:50:50 M{L Lg ha-1)+ FeSO4 10 kg + hoeing at 30 days after sowing (DAS )+ hand weeding (HW) at 30 DAS and 45 DAS recorded significantly more values of growth attributes, yield attributing characters, grain yield (2.48 t ha-1), lowest mean weed dry matter (42.53 g) at harvest and no. of weeds (26.81) at harvest over rest of management practices, however, it was at par with 80% RDF + FeSO4 8 kg + green manuring and incorporation at 35 DAS + 1 HW at 45 DAS . Amongst management practices significantly higher available N, P2O5, K2O, Fe and BD were recorded at harvest under RDF + FeSO4 10 kg + green manuring and incorporation at 35 DAS + 1 HW at 45 DAS.