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文章针对辽宁省建平县降雨稀少且时空分布不均、地下水资源不足且连年减少的问题,设立旱作玉米秸秆持水吸肥试验,将秸秆制成持水吸肥的载体,通过加工、置入、覆膜等技术的密切结合,形成一套旱地高产、培肥、保水的新技术。试验结果表明:玉米秸秆持水吸肥深埋技术具有增强土壤保墒供水能力,促进作物生长发育,改善生育性状,提高玉米产量的作用。其中,秸秆持水吸肥还田1 000kg/亩,亩产达729.07kg,比常规耕作亩产增加269.12kg,增产率高达58.51%,与邻近水浇地产量基本持平,值得大面积推广和应用。
Aiming at the problem of few rains in Jianping County of Liaoning Province, sparse distribution of time and space, insufficient groundwater resource and successive years of decrease, a trial was conducted on water-holding and fertilizer-absorption experiment of dry straw for corn stalks. Into, film and other closely integrated technology to form a dry land of high yield, fertility, water retention of new technologies. The results showed that the deep-seeding technique of corn stalks with water and fertilizer could enhance the ability of soil moisture supply and water supply, promote the growth and development of crops, improve the fertility traits and increase the yield of corn. Among them, the straw water absorption and fertilizer back to the field 1 000 kg / mu, yield 729.07kg, 269.12kg increase than conventional farming per mu yield of 58.51% increase, and the adjacent irrigated land yield basically the same, it is worth large-scale promotion and application .