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生产实践证明,在旱作农业区,大豆垄上行间覆膜技术表现出了良好的增产性能,其平均增产率可达28%左右。通过田间试验分析、土壤保水、供水能力的增强是该技术增产的决定性因素;土壤温度的提高在促进早生、快发上起到了重要作用而在构建中、后期高产长相上作用不显著。在规模化推广、应用的同时,为了给加快普及和进一步配套相关技术提供可靠依据,特对其增产机理进行了初步试验、研究。
Production practice has proved that in the dry farming areas, soybean ridge intercropping technology showed a good upward yield performance, the average yield increase of up to 28%. Through the field experiment, the enhancement of soil water retention and water supply capacity is the decisive factor for the yield increase of the technology. The improvement of soil temperature played an important role in promoting the early and rapid development of the soil, while the effect was not significant in the middle and late high-yielding phase. In large-scale promotion and application of the same time, in order to speed up the popularization and further supporting the relevant technology to provide a reliable basis, especially its production mechanism for a preliminary test and study.