Rice Yield and Nitrogen Use Efficiency With System of Rice Intensification and Conventional Management Practices in Mkindo Irrigation Scheme, Tanzania

Aim This study investigated the impacts of system rice intensification (SRI) and conventional management practice (CP) on growth, grain yield, nitrogen use efficiency by application. Methods Field experiments were conducted in wet dry seasons; each season, experiment was set a split-plot randomized complete block design triplicate with crop practices main plots levels subplots. Results The average yield SRI 7.1 6.7 t ha ?1 , while CP it 6.1 4.4 seasons, respectively. significantly ( p < 0.05) greater than that at all under treatment interaction increased 13.1% season 35.8 % season. Roots plants had fresh weight, length, volume as indicated root weight per hill. improved effective tillers, filled grains panicle, filling rate, panicle spikelet straw 1,000-grain weight. Nitrogen application rate significant effect agronomic (ANUE). As N beyond 90 kg ANUE partial factor productivity (PFP) both decreased seasons. Conclusion Overall, production 60 compared to CP.