Effect of organic inputs on production and quality of scented rice (Oryza sativa) variety Keteki joha in Assam and its economic aspect

A field experiment was conducted during kharif, 2011 to evaluate the effect of different organic inputs on quality parameters and economics of scented rice variety Keteki joha. The seven treatment combinations of organic inputs were laid out in RBD with 4 replications. The results revealed that application of different treatment significantly increased the grain yield. Among the different treatment application of enriched compost @ 2.5 t/ha recorded the highest grain yield (2.45 t/ha) and it also enhanced the other quality parameters of the grain. The organic inputs as a whole improved the quality parameters and economics of scented rice (var. Keteki joha). However, no significant differences were observed in quality parameters viz. length and breadth of grain, L/B ratio, protein content and aroma (concentration of 2-acetyl-1-pyrroline). The net return was highest in case of green manure @ 2.5 t/ha + azolla duel cropping @ 0.5 t/ha but among different organic inputs benefit cost ratio was found to be highest in green manuring @ 5t/ha due to low cost of the inputs.