大豆抗旱节水生理及水肥一体化栽培技术研究初报

Preliminary Studies on Resisting Drought and Saving Water Physiology of Soybean and Integrative Water and Fertilizer Planting Technology

为了明确旱作农业区大豆抗旱节水栽培技术,确保大豆生产可持续发展,根据黑龙江省旱作农业区特点,针对大豆抗旱节水生产技术进行了试验研究。结果表明:(1)大豆行间覆膜可提高土壤含水量,与不覆膜相比提高1.19个百分点;(2)喷施土壤调理剂明显改善土壤物理性状,容重低于播前;(3)覆膜配合合理施肥在一定程度上改善了大豆光合作用指标,其产量及水分利用效率高于其它处理。

In order to make sure the planting technology of resisting drought and saving water of soybean in dry farming areas, insure the sustainable development of soybean production, we investigated the technology of resisting drought and saving water on soybean through the character of Heilongjiang Province as dry farming areas. The result showed： covering film between rows increased the soil moisture. It increased 1.19% comparing with the no covering treatment; （2） spraying no-tillage regulator improved the physical character of soil obviously, bulk density was lower than the period before sowing; （3） covering film and applying fertilizer rationally improved the indexes of soybean photosynthesis at a certain extent, its yield and water use efficiency were higher than other treatments.