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作 者:唐华彬
机构地区:[1]贵州省农科院,贵阳550006
出 处:《贵州农业科学》1993年第4期23-26,共4页Guizhou Agricultural Sciences
摘 要:于1991~1992年对玉米进行了生物覆盖和地膜覆盖栽培技术研究。结果表明:在玉米生长前期,生物覆盖能减少土壤表层水分的蒸发,能截留更多的地表水,土壤含水量比裸地增加2.1%~4.7%,表现出一定的抗旱保墒作用,苗早苗齐,比对照增产9.37%~13.52%,并可防止“白色污染”。但草害比对照严重。The research involving biological and plastic mulching measures for corn was coducted from 1S91 to 1992. The results indicated that at the earlier growth stage of corn, the biological mulching could reduce the evapotranspiration of the ploughed layer and intercepted more surface water than the plastic mulching did. It also had, compared with the treatment of bare land, an increase of 2.1-4.7% in soil water content and an earlier germination, and an even plant growth as well.The measure of plastic mulching increased corn yield by 9.31~13.52% in comparison with the check and additionally avoided a 'white pollution' caused by plastic sheet. It, however, had a more serious weed harm than the check did.
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