【摘要】 [目的]研究不同立体复合模式系统中的玉米田间土壤水分变化特征及产量、效益,构建适合风沙半干旱区的最优模式。[方法]选择科尔沁沙地南缘4种果粮立体复合模式(模式A1:大扁杏//花生/玉米/花生//大扁杏,模式A2:大扁杏//谷子/玉米/谷子//大扁杏,模式A3:大扁杏//大豆/玉米/大豆//大扁杏,模式B:大扁杏//玉米//大扁杏),运用土钻法对4种果粮立体复合模式玉米地进行水分动态监测,评价不同模式区的经济效益。[结果]在整个生长季果粮立体复合模式区玉米地0～60 cm土层平均含水量大小顺序为:模式A1(模式A2(模式A3(模式B。不同立体复合模式玉米单位面积产量大小顺序为:模式A1>模式A3>模式A2>模式B。从不同果粮立体复合模式的经济效益分析,模式A1经济效益较高。[结论]模式A1在风沙半干旱区表现较好。更多还原

【Abstract】 [Objective]Corn soil moisture and yield,benefits of different compound modes were studied to establish the most productive modes in sandy and windy semi-drought area.[Method]Four compound cultivation modes in south of Horqin sandy land were chosen,which were A1 apricot // peanut / corn / peanut // apricot,A2 apricot //grain / corn / grain // apricot,A3 apricot //bean / corn / bean // apricot,B apricot // corn // apricot,to study the variation of corn soil moiture in the four modes and to evaluate the economic benefit in each mode.[Result]The order of average water content(0-60 cm) in corn field throughout the growing season under fruit and grain compound cultivation modes was mode A1> mode A2> mode A3> mode B.The order of the yield per unit area of corns under different compound cultivation modes was mode A1> mode A3> mode A2> mode B.Economic benefit analysis showed that mode A1 was higher than the other.[Conclusion]Mode A1 was proved to be the most productive mode in sandy and windy semi-drought area.更多还原