标题：Performance of Rice with Varied Age of Seedlings and Planting Geometry under System of Rice Intensification (SRI) in Farmer’s Field in Western Terai, Nepal
出版社：Nepal Academy of Science and Technology (RONAST)
摘要：Numbers of on-farm experiments were conducted to assess the performance of rice ( var. Sabitri ) cultivated using System of Rice Intensification (SRI) with varied age of seedlings and planting geometry in four VDCs of Kailali, far western Nepal, under the aegis of Farmers’ Field School (FFS) during the rainy season of 2010. The experiment consisted of the seedlings of four age groups; 8, 15, 22 and 29-days and four planting geometry; 15x15cm 2 , 20x20cm 2 , 25x25cm 2 and 30x30cm 2 planted in four FFSs. Parameters such as number of tillers per hill, effective tillers /m2, 1000 seed weight (TGW) and grain yield were recorded. The results showed that 8-days-old seedlings produced significantly higher number of tillers per hill (40) and effective tiller per m 2 (373), higher 1000 seed weight (21.10 g), grain yield (7.8ton/ha), net return (Rs.71900/ha) and B:C ratio (1.594). Similarly, crop planted in the geometry of 25x25 cm 2 produced significantly higher number of tillers per hill(36), effective tiller per m 2 (328), higher 1000 grain weight (21.50 g), grain yield (8.54mt/ha), net return (Rs.83350/ha) and B:C ratio (1.84). Nepal Journal of Science and Technology Vol. 13, No. 2 (2012) 1-6 DOI: http://dx.doi.org/10.3126/njst.v13i2.7706
关键词：farmers field school;western Terai;grain yield;B : C ratio;tillers/ m2
