摘要
对不同降雨年份6种旱地地膜玉米种植模式研究结果表明，槽式、垄沟、低穴、撮苗等微集流模式均能小范围富集叠加降雨，改善玉米水分微生境。降雨量不同，模式间集雨效果亦不同，分别比对照多集雨1.9～7.8mm。不同种植模式玉米增产顺序依次为槽式〉垄沟〉低穴〉撮苗，增产率为12．7％～21．9％。
Six planting models on mulched maize in different years with varied rainfalls are studied. The results show that the trough bed, paralleled furrows, hole planting and mass planting are effective in rainwater harvesting and in improving the soil moisture content around the root zones. The rainwater harvesting efficiency varies with the different rainfall and models and increases 1.9- 7.8ram compared with the CK. The grain yields increase by 12.7% -21.9% under different treatments, among which the trough bed gives a best result, followed by paralleled furrows, hole planting and mass planting.
出处
《中国生态农业学报》
CAS
CSCD
2006年第3期93-95,共3页
Chinese Journal of Eco-Agriculture
基金
甘肃省扶贫办项目(200109)资助
关键词
旱地
地膜玉米
“贫水富集”
种植模式
Arid zone, Mulched maize, Rainwater harvesting, Planting models
