Welcome to Journal of Agriculture,

Journal of Agriculture ›› 2023, Vol. 13 ›› Issue (8): 18-24.doi: 10.11923/j.issn.2095-4050.cjas2023-0022

Special Issue: 生物技术 油料作物 玉米

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Effects of Maize and Soybean Intercropping on Agronomic, Quality and Yield Traits of Soybean

ZHAO Xiaoguang1(), ZHAO Xingzhong1(), LIU Haomeng1, XIAO Jinping1, ZHANG Pu1, ZHANG Yalei2, WANG Liping1   

  1. 1 Hybrid Rape Research Center of Shaanxi Province, Yangling 712100, Shaanxi, China
    2 Yangling Middle School, Yangling 712100, Shaanxi, China
  • Received:2023-01-30 Revised:2023-04-21 Online:2023-08-20 Published:2023-08-16

Abstract:

In order to expound the changing rules of agronomic traits, quality traits and yield traits of soybean varieties under maize and soybean intercropping mode, 7 soybean varieties and maize variety 'Shandan 650' were selected for intercropping, and the differences of various traits of soybean varieties under the intercropping and the monocropping modes were analyzed. The results showed that the plant height, pod height and nodes on main stem of intercropping soybeans were higher than that of monocropping soybeans, but the pod number per plant and pod density of intercropping soybeans were lower than that of monocropping soybeans, and the growth period of intercropping soybeans were longer than that of monocropping soybeans; the crude fat and protein of intercropping soybeans were higher than that of monocropping soybeans, the content of saturated fatty acid of intercropping soybeans were lower than that of monocropping soybeans, but the content of linoleic acid and linolenic acid of intercropping soybeans were higher than that of monocropping soybeans; the grain weight per plant, number of grains per plant and number of grains per pod of intercropping soybeans were lower than that of monocropping soybeans. The changing rules of 100-grain weight were not consistent among different varieties. The average yield of 7 soybean varieties under intercropping mode was 49.88% lower than that under monocropping mode. Through the analysis of various traits, it provided strong support for us to select suitable soybean varieties in different regions for maize and soybean compound planting.

Key words: soybean, maize, intercropping, quality, yield