Developing soybean-corn strip compound planting to tap the potential and improve soybean productivity

　　CCTV News:In the previous plots, corn or soybean were planted separately. Why should we promote this "mixed planting" mode of soybean and corn strip composite planting now?

　　Developing soybean and corn strip compound planting is an important way to break the constraints of cultivated land resources, tap the potential and improve soybean productivity.

　　The suitable strip structure is 2 to 4 rows of corn for every 4 to 6 rows of soybeans, and the final plan should be determined according to the actual production conditions and equipment supporting conditions in various places.

　　Through the form of intercropping soybean and corn, the allocation of light and heat resources can be optimized, and corn leaves block part of the sunlight to avoid direct soybean, so that soybean can grow sturdily. At the same time, rhizobia on soybean root system can fix nitrogen and increase soil fertility. Through this model, we can achieve the goal of basically not reducing corn production and harvesting more soybeans in one season.

　　2022 is the first year of large-scale demonstration and promotion of soybean and corn strip compound planting, covering an area of more than 15 million mu. A number of suitable varieties have been initially selected, a number of technical models have been integrated, a number of special machines and tools have been equipped, and a number of planting experts have been trained.

　　In 2023, the state will continue to support the promotion of soybean and corn strip compound planting, focusing on the northwest, Huanghuaihai, southwest and middle and lower reaches of the Yangtze River, and the central government will give subsidies according to the standard of 150 yuan per mu. In 2023, the soybean and corn strip compound planting area has been expanded to 20 million mu.