玉米和不同作物间作对资源利用率及产量的影响

Effects of Maize Intercropping with Different Crops on Resource Utilization and Yield

为研究玉米和不同作物间作种植模式下,作物产量及资源利用率的变化特征,揭示间作体系的增产效应,设置玉米单作、大豆单作、玉米和大豆间作、花生单作、玉米和花生间作5种模式,研究作物干物质积累、产量及产量构成因素、资源利用率的变化特征。结果表明,间作模式下作物总干物质量和产量显著提高,土地当量比大于1,且玉米和大豆间作大于玉米和花生间作。间作模式下光能生产效率、降水生产效率、有效积温生产效率和光能利用效率显著提高,因此,间作种植模式影响作物干物质积累量和作物产量构成因子,从而影响作物产量。2种间作种植模式相比,玉米花生间作的增产效应较高。

The variation characteristics of crop yield and resource utilization was analysized under maize and different crops intercropping modes to reveal the yield increasing effect of intercropping system,five models of maize monoculture,soybean monoculture,maize-soybean intercropping,peanut monoculture and maize-peanut intercropping were set to study the change characteristics of crop dry matter accumulation,yield,yield components and resource utilization.The results showed that the total dry matter quality and yield of crops were significantly improved under the intercropping model,the land equivalent ratio was greater than 1,the intercropping of corn and soybean was greater than that of corn and peanut.Under the intercropping mode,light energy production efficiency,precipitation production efficiency,effective accumulated temperature production efficiency and light energy utilization efficiency were significantly improved.Therefore,the intercropping mode is affected crop yield by impacting factors that affects crop dry matter accumulation and crop yield component factors.Compared with the two intercropping patterns,the yield increasing effect of maize intercropping was higher.