Abstract:
In order to screen out the suitable soybean varieties under the fresh maize-soybean strip intercropping system, twelve soybean varieties were introduced for the comparative screening. With Minchengdou 8 as the control, the growth period, agronomic traits and yield of each variety were investigated by using the cropping arrangement of two rows of corn and three rows of soybean. The results showed that Huaxia 26 exhibited optimal overall performance, characterized by moderate plant height, the highest number of pods per plant and seeds per plant, and an average yield of
1677.0 kg·hm
−2, which was 13.84% higher than that of the control variety Minchengdou 8, with the increase reaching a statistically significant level. The average yield of Huaxia 21 and Huaxia 14 was 1 569.3 kg·hm
−2 and 1 503.9 kg·hm
−2, respectively, which was 6.52% and 2.09% higher than that of the control variety Minchengdou 8, though the differences were not statistically significant. All the three varieties exhibited compact plant architecture and good lodging resistance. In conclusion, Huaxia 26 and Huaxia 21 were recommended for further demonstration and extension under the fresh maize-soybean strip intercropping system, whereas Huaxia 14 could further expand the introduction experimental cultivation.