Soybean and corn belt compound planting is an innovative development of traditional intercropping technology, which puts forward higher requirements for herbicide variety selection, application time, and application method. In order to scientifically standardize the application of herbicide technology for soybean and corn belt compound planting and improve the control effect, this plan is specially formulated for reference by various regions.

1、 Prevention and control strategy

The principle of comprehensive control is adhered to in the weed control of soybean and corn belt compound planting, and the role of agricultural physical measures such as tillage, rotary tillage, and plastic film mulching is fully exerted to reduce the occurrence base of weeds in the field and reduce the pressure of chemical weeding. The use of herbicides should adhere to the application strategy of “soil sealing treatment before seeding after sowing, supplemented by stem and leaf orientation or isolated spray treatment after seeding”. According to the characteristics of different regions and different planting modes, it is necessary to consider not only the growth safety of soybean and corn in the current crop, but also the safety of the next crop and the rotation of soybean and corn belt compound planting in the next year, and scientifically and reasonably select herbicide varieties and application methods.

suit one’s measures to local conditions. All localities should formulate technical plans for weed control based on sowing time, planting mode, and weed species, scientifically select appropriate herbicide varieties and dosage based on local conditions, and carry out classification and precise guidance.

Treat early and treat young. Priority should be given to the use of closed soil treatment for weeding after sowing and before seedling to reduce the pressure on weeding after seedling. Post seedling weeding focuses on the seedling and seedling stages, which are the key stages of weed control and have good weeding effects.

Safe and efficient. The variety of herbicides used for weed control should ensure high efficiency and low risk, and be safe for the growth of the current crop of soybeans, corn, and surrounding crops, while not affecting the next crop.

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