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在四川盆地东北部中丘区的棕紫泥旱坡地上,研究了“麦/玉/苕”旱三熟增间大豆的经济效益和土壤生态效益.结果表明:“麦/玉/苕”间种大豆结合秸杆还田耕作,在大春粮食增产或不减产基础上,经济效益显著提高;土壤容重降低、养分提高,特别是有机质、速效磷、速效钾明显增加.认为改进种植模式与发展大豆生产相结合,是提高旱坡地综合效益的良好途径.
The economic benefits and soil ecological benefits of “wheat / jade / mongyang ” increased with the increase of soybean yield in the middle part of the Sichuan Basin. The results showed that:间 "Soybean combined with straw to field farming, in spring on the basis of grain yield increase or non-reduction, the economic benefits significantly increased; soil bulk density decreased, increased nutrients, especially organic matter, available phosphorus, available potassium increased significantly. The combination of cropping patterns and the development of soybean production is a good way to improve the overall efficiency of dryland.