In order to solve the problem of soybean yield reduction caused by uneven emergence or non-emergence of soybean in rain, com-parative test was carried out based on five treatments of straw mulching( T1) , a layer of shading-net mulching( T2) , two layers of shading-net mulching(T3), film mulching(T4), open filed(CK). Results showed that the coverage measures increased the emergence rate of soybean by 59.00％-107.69％, improved yield of soybean. T3 treatment had the highest input cost, followed by T4 treatment. T3 treatment had the highest input-output ratio, reaching 1.00:4.41, followed by T2 treatment. And T4 treatment was the lowest, only 1.00:2.41. In general, T3 treatment enhanced the seedling density of soybean under under rainstorm condition, obtained the optimal input-output ratio, and could be widely used in production.
关键词
暴雨/大豆/不同覆盖方式/出苗/投入产出比
Key words
Rainstorm/Soybean/Different mulching methods/Seedling emergence/Input-output ratio
维普
万方数据