红壤坡耕地间种垄作玉米//花生的产量表现及其种间竞争力的评定

Yield Performance and Interspecific Competitiveness of Crops in Maize-Peanut Intercropping with Ridge Tillage in Red Soil Slope Farmland

以花生单作和玉米单作为对照,设置玉米//花生平作、垄面花生//垄沟玉米和垄面玉米/垄沟花生3个间作处理,研究了不同间作处理对作物生物产量和经济产量的影响,分析了不同间作模式下作物的种间竞争力和经济效益。结果表明:不同间作处理中花生的生物产量与经济产量总体上低于花生单作处理的,而玉米则相反;不同间作处理的土地当量比以及花生相对于玉米的种间竞争力均以垄面花生//垄沟玉米处理为最大;在不同间作处理中,以垄面花生//垄沟玉米的经济效益和产投比最高,分别为1843.69元/hm^2和1.07。

Taking peanut monocropping and maize monocropping as controls, designing three intercropping treatments（ maize-peanut intercropping without ridge,intercropping of ridge-surface peanut and ridge-ditch maize,and intercropping of ridge-surface maize and ridge-ditch peanut）,the author studied the effects of different intercropping treatments on the biological yield and economic yield of crops,and analyzed the interspecific competitiveness and economic benefits of crops in various intercropping systems. The results showed that： the biological yield and economic yield of peanut in different intercropping treatments were generally lower than those in peanut monocropping treatment,while the results were on the contrary for maize; among various intercropping treatments,the intercropping of ridge-surface peanut and ridge-ditch maize obtained the maximum land equivalent ratio,the biggest interspecific competitiveness of peanut to maize,the highest economic benefit（ 1843. 69 yuan/hm2）,and the highest output-input ratio（ 1.07）.