Abstract:

Abstract: On the saline alkali soil ,effect of different planting densities (B), basal volume (C), dressing rate(D) on yield of three kinds of feed oat(A)- Baiyan 2, Baiyan 6, Baiyan7-were studied by the method of orthogonal design of four factors and three levels, and yield of different combinations of fresh grass were analyzed. The results showed that, there were extremely significant differences in effect of different planting densities on yield of fresh grass, and effect of the other three factors were not significantly different. The influence degree of each factor on yield of fresh feed oat followed by planting density > Variety> basal amount of> dressing rate. In the case of experiment, the best planting compound mode for the maximum yield was sowing Baiyan 6 150kg/hm2, applying a compound fertilizer375kg/ hm2 and dressing 5kg/ hm2 after cutting on the saline alkali soil.