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研究以单作棉田为对照,重点探讨了棉椒间作施肥的经济效益和水分利用率。结果表明,棉椒间作既维持了较高的棉花产量水平又显著提高了棉田的经济效益和水分利用率,且对该区现有可支撑水资源有明显适应性;施肥主要是通过增加棉田经济效益进一步提高了间作棉田的水分利用率,而棉田经济效益的增加又主要靠天鹰椒产量的提高来实现,750.0 kg/hm2K2SO4复合肥即可实现稳定较高的棉田经济效益和水分利用率;棉椒间作把化学(地膜)覆盖和生物(天鹰椒)覆盖融为一体,较充分地利用了农田覆盖的作用。
In this study, the single crop cotton field was used as a control, focusing on the economic benefits and water use efficiency of cottonseed and paddy intercropping. The results showed that the cotton-pepper intercropping not only maintained high cotton yield but also remarkably increased the economic benefit and water use efficiency of the cotton field, and obviously adapts to the available water resources in the area. The fertilization is mainly through increasing the economy of the cotton field The efficiency further improves the water use efficiency of intercropping cotton fields, and the increase of economic benefits of cotton fields mainly depends on the increase of production of pepper. The 750.0 kg / hm2K2SO4 compound fertilizer can achieve the stable economic efficiency and water use efficiency of cotton fields. The cotton-pepper intercrops integrated the chemical (plastic film) cover with the biological (pepper) cover, making full use of the role of farmland cover.