Effects of Different Maize-Soybean Intercropping Patterns on Crop Growth,Yield,and Economic Benefits
In order to investigate the regional adaptability of maize-soybean intercropping in Jilin Province,field experiments were conducted in both Qian'an in the semi-arid region and Dunhua in the semi humid region,and different intercropping modes were optimized and compared.The experiment was conducted using a regional ap-proach,with rotation maize and rotation soybean as controls.Seven intercropping treatments were set with row ratios of maize and soybean at 2∶2,2∶4,4∶2,4∶4,6∶2,6∶4,and 6∶6.The results showed that intercropping had a promoting effect on the growth of maize plants,while it had an inhibitory effect on soybeans.Although the yield of maize and soybean varies in different regions,the impact of intercropping patterns on crops is basically the same.Compared to controls,all intercropping treatments resulted in some yield reduction.However,the 2:4 intercropping of maize and soybean showed the best land equivalent ratio and yield income,followed by the 4∶4 intercropping.The former had a land equivalent ratio of 1.282 to 1.306,and the latter had a land equivalent ratio of 1.147 to 1.222.The results indi-cate that compared with traditional monoculture,a reasonable maize-soybean intercropping model can significantly improve land use efficiency and comprehensive economic benefits,and holds promising potential for wider adoption in Northeast China.
MaizeSoybeanIntercroppingCrop growthLand use efficiency
NETL
NSTL
万方数据
