Screening Test of Soybean Varieties Under Soybean-corn Belt Composite Cultivation Model in Eastern Guangxi
In order to implement the important deployment of the No.1 Central document on ensuring"grain and oil security",Guangxi further expanded the planting area of soybean oil crops and adopted the soybean-corn belt composite cultivation planting method to improve land use efficiency and economic benefits.The climatic conditions in the eastern region of Guangxi are suitable for the growth of soybean and corn,so it is very important to select suitable soybean varieties to solve the problem caused by the shading of corn.Six spring soybean varieties including"Guichun 1608""Guichun 8""Guichun 15""Guichun 16""Guichun 1603"and"Guichun 1607"were selected in the experiment,and the morphological characteristics,dry matter quality,yield composition,and quality of plants were investigated by fixed planting row ratio and random block design.The results showed that"Guichun 15"did not exhibit the phenomenon of barren growth under the soybean-corn belt compositon cultivation mode.The plant height,low pod height,and main stem node number of"Guichun15"were the lowest.The branch number,effective pod number,and plant dry matter weight were medium.The fresh pod weight,100 kernel weight and yield were significantly higher than those of other varieties,and the grain quality was moderately higher.It showed that"Guichun 15"was the most suitable choice for the soybean variety in the spring,which could increase production and income.
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