旱地春玉米草纤维膜覆盖的农田生态效应  

Ecological effects of grassy fibre film mulch on spring corn field in dryland.

作　　者：钟兆站[1] 赵聚宝[1] 梅旭荣[1] 

机构地区：[1]中国农业科学院农业气象研究所,北京100081

出　　处：《生态农业研究》1998年第3期25-29,共5页Chinese Journal of Eco-agriculture

基　　金："八五"国家重点科技攻关项目

摘　　要：试验研究了草纤维膜覆盖旱地农田春玉米及其对土壤理化性状、土壤温度和水分状况及作物生长发育的影响。结果表明,草纤维膜覆盖在改善土壤结构、调节土壤温度、蓄水保墒、促进作物生长发育等方面效果明显,是解决我国北方旱农地区干旱缺水与土壤瘠薄缺肥的有效途径之一。According to the field information from the place located in Shouyang County, Shanxi Province,a new kind of field mulch-Grassy Fibre Film Mulch(GFFM) on spring corn in dryland and its effects on soil physical and chemical features, soil temperature, soil water condition and the growth of spring corn are studied. The results indicate that the GFFM can improve soil structure, harmonize relations among soil temperature, soil water condition and crop development, decrease soil evaporation, and raise crop water utilization efficiency. Under GFFM condition,the amounts of soil water storage and supply are increased by 14.9mm and 14.6mm respectively,crop water consumption is decreased by 9.2% ,the co-efficient of crop water consumption decreased by 32.3% and the efficiency of soil water utilization raised by 47.5% compared with the control. The water-saving and yield-raising efficiency of GFFM is obvious,so the GFFM is one of the effective ways to solve the pro-blem such as drought and barren land in the dry farming areas in Northern China.

关 键 词：草纤维膜覆盖 农田生态效应 土壤水分 玉米 

分 类 号：S513.04[农业科学—作物学]