Effect of soil preparation practice and organic materials on growth and yield of rice

The experiment was conducted to determine the effect of nutrient management and no-tillage system on rice growth and yield of rice. Experimental design was a randomized complete block with 4 replicates comprised 5 treatments: 1) Control (Conventional tillage and recommended fertilizer application) 2) Conventional tillage with sunn hemp incorporation 3) Conventional tillage with rice straw incorporation 4) No tillage with sunn hempmulching and 5) No tillage with rice straw mulching. All treatments received the same rate of N at 18.6 kg N per rai. The result showed that conventional tillage with sunn hemp incorporation had highest rice dry weight and was significantly different as compare to conventional tillage (control). Also, the conventional tillage with sunn hemp incorporation had highest rice grain yield in both growing season (563.92 and 502.21 kg per rai, respectively). Organic material application increased soil organic matter and lower NH4 + leaching than control (data not shown)