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Productivity Enhancement and Water Use Efficiency of Maize-soybean Intercropping
Author(s): 
Pages: 80-83
Year: Issue:  9
Journal: Rain Fed Crops

Keyword:  玉米/大豆间作土地当量比水分当量比水分利用效率;
Abstract: [目的]开展适宜作物间作模式研究,提升农田生产力和资源利用效率.[方法]该研究以玉米和大豆单作为对照,对玉米/大豆间作群体水土利用特征进行研究.[结果]间作玉米条带耗水量从玉米拔节期后高于单作玉米,全生育期耗水量增加11.6 mm;间作大豆条带耗水量从齐苗后20 d之后低于单作大豆,全生育期耗水量减少28.2 mm.全生育期玉米/大豆间作群体耗水量较单作玉米减少3.6 mm,较单作大豆减少13.0 mm.间作玉米条带产量较单作玉米提高30.74%,水分利用效率提高6.57 kg/hm2/mm;但间作大豆条带产量较单作大豆降低9.44%,水分利用效率降低0.34 kg/hm2/mm.[结论]玉米/大豆间作可提高农田水土利用效率,土地当量比和水分当量比分别为1.11和1.12.
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