摘要
气象资料分析和土壤测试结果表明：７～１０月份降雨少与蒸发多的矛盾及棕红壤不良的水分特性是我省棕红壤区域伏秋旱严重的根本原因。旱地局部深耕、旱坡地垄作免耕覆盖、秸秆覆盖等调控措施都有一定的防旱保水效果；把各种措施结合起来，则可最大限度地抵御干旱。
The bad soil water condition of upland in brownred soil areas has become an important limiting
factor for the development of sustainable agriculture.The studied results showed that,the crucial
reasons for soil drought were the contradictory between less rainfall and more evaporation from
July to October and the bad soil water characteristics.The techniques for regulating the soil
moisture conditions by local deep tillage,tillless culture with ridge and covering with straw were
effective in drought resistance,and a complete drought resistance can be obtained by
combining various ways and techniques.
出处
《湖北农业科学》
1999年第2期24-25,39,共3页
Hubei Agricultural Sciences
基金
国家"九五"攻关项目
关键词
棕红壤
旱耕地
干旱成因
调控技术
brownred soil,upland,reasons of
drought,regulating techniques
