辽西地区秸秆覆盖试验研究  

An Experimental Study of Straw Stalk Cover in Liaoxi Area

作　　者：肖继兵[1] 杨久廷[1] 辛宗绪[1] 

机构地区：[1]辽宁省水土保持研究所,辽宁朝阳122000

出　　处：《节水灌溉》2008年第2期8-10,13,共4页Water Saving Irrigation

基　　金：国家高技术研究发展计划("863"计划)科技专项课题资助项目(2002AA2Z321-02)

摘　　要：秸秆覆盖可以减少土壤表面水分蒸发,提高降水利用率和水分利用效率。以不覆盖的处理为对照,研究了在玉米生育期间,秸秆覆盖对土壤水分动态变化及产量的影响。结果表明,秸秆覆盖增产效果明显,通过连续2年的秸秆覆盖试验,以覆盖量7500 kg/hm2增产效果显著,增产幅度为14.8%-19.6%。The straw stalk cover may reduce the soil surface moisture evaporation, raises the precipitation use factor and the moisture content use efficiency. Take processing which does not cover as the comparison, has studied in corn birth period, straw stalk cover to soil water dynamic change and output influence. The result indicates that the straw stalk cover production increase effect is obvious, through continuously two years straw stalk cover experiment, covers the quantity 7500kg/hm2 production increase effect is remarkable, the production increase scope is 14.8%-19.6%.

关 键 词：秸秆覆盖 保墒 水分利用效率 

分 类 号：S157.42[农业科学—土壤学]