中国生态农业学报（中英文）2026，Vol.34Issue(3)：485-499,15.DOI:10.12357/cjea.20250032
大豆玉米带状复合种植产量、效益及关键因素研究
Yield,economic benefit,and key impact factors in the strip intercropping system of soybean and maize
摘要
Abstract
China's soybean industry is heavily dependent on imports,and limited domestic production capacity restricts industry de-velopment and poses risks to national food security.Enhancing soybean production capacity is therefore essential to improving supply-demand self-sufficiency.As a key agronomic technology promoted by the Ministry of Agriculture and Rural Affairs in recent years,soybean-maize strip intercropping plays a critical role in expanding soybean cultivation areas and increasing yields.This study is based on 1012 valid questionnaires collected in 2024 from a nationwide survey on soybean-maize strip intercropping conducted across 19 provinces(autonomous regions and municipalities).This study systematically analyzed the yields of soybeans and maize,planting costs,economic benefits,the land equivalent ratio(LER),as well as the effects of planting row ratios,densities,and varieties on yields.Results showed that the national average yields were 1 642 and 6916 kg·hm-2 for soybeans and maize,respectively.The combined yield of soybean and maize in the Huang-Huai-Hai Region was 9 905 kg·hm-2,which was 13％and 45％higher than that in the Northwest and Southwest regions,respectively.The national average LER was 1.55,ranging from 1.42 to 1.70.The highest LER was observed in the Huang-Huai-Hai Region(1.63),followed by the Southwest(1.56)and Northwest(1.55)regions.Regarding plant-ing row ratios,the 6:4 soybean to maize configuration was most common in the Huang-Huai-Hai Region,accounting for 39％of cases.Under this ratio,the proportion of soybean planting density of 1.28×105-1.50×105 plants·hm-2 was the highest(40％),with a corresponding maize density of 4.2×104-1.05×105 plants·hm-2.In the Northwest Region,the 4:4 ratio was dominant(35％),with soybean density of 1.275×105-1.5×105 plants·hm-2(48％)and corresponding maize densities of 3.75×104-8.25×104 plants·hm-2.In the Southwest Region,the 3:2 ratio was the most prevalent,with the proportion of 60％,where soybean planting densities of 1.05×105-1.245×105 plants·hm-2(36％)and maize planting densities of 3.75×104-6.75×104 plants·hm-2 were most common.Cultivar selection also varied by region.'Yundou 1'had the highest percentage in the Huang-Huai-Hai Region,followed by'Qihuang 34'and'Jidou 12'.'Huangjinliang MY73'had the highest percentage for maize cultivar in this region,followed by'Liangyu 99'and'Deng-hai 605'.'Dongdou 339'had the highest percentage for soybean cultivar in the Northwest Region,followed by'Zhonghuang 13'and'Qihuang 34';'Youdi 919''Xianyu 1483',and'Denghai 605'were the first three maize cultivars in the Northwest Region.'Qihuang 34'had the highest percentage for soybean cultivar in the Southwest Region,followed by'Qiandou 12'and'Diandadou 2'.'Chuandan 99''Xianyu 1171',and'Chengdan 716'were the first three maize cultivars in the Southwest Region.Overall,this study provides important empirical evidence to support further development and technological extension of soybean-maize strip intercrop-ping systems.关键词
产量/经济效益/土地当量比/种植行比/种植密度/品种Key words
yield/economic benefit/land equivalent ratio/planting row ratio/planting density/variety分类
农业科技引用本文复制引用
钟宇晖,汤松,蒋靖怡,杨晓琳,杜太生..大豆玉米带状复合种植产量、效益及关键因素研究[J].中国生态农业学报（中英文）,2026,34(3):485-499,15.基金项目
国家自然科学基金项目(52239002,32071975)和中国工程院战略研究与咨询项目(2023-PP-02-02)资助 This study was supported by the National Natural Science Foundation of China(52239002,32071975),and the Strategic Research and Consulting Project of Chinese Academy of Engineering(2023-PP-02-02). （52239002,32071975）
