The overall plan for farmland chemical weeding work in China is to consolidate the development of paddy fields, accelerate the development of dry fields, and comprehensively improve the technical level of integrated weed management. Focus on the following tasks:
1. Gradually establish and implement a technical system for comprehensive management of farmland weeds. Under the guidance of the "prevention-based, comprehensive prevention" plant protection policy, based on the principle of "safety, economy, high efficiency, and increased production", the establishment and implementation of agricultural measures as the basis, chemical control as the main means, ecological regulation, machinery and Artificial weeding is an auxiliary technical system for comprehensive management of farmland weeds.
2. Adapt to the development of agricultural production, develop and promote the supporting chemical weeding technology. The changes in agricultural production and management methods, farming methods and farmland weed communities have continuously raised new issues for chemical weeding. For example, the promotion of dry cultivation and thinning of rice, the promotion of throwing techniques, and the changes in farming methods such as intercropping, intercropping, no-tillage, and plastic film mulching require the development and promotion of chemical weeding techniques. In view of the problem of weed population succession and drug resistance, it is recommended that the crops be rationally rotated, strengthen the scientific compounding and rotation use of herbicide varieties, expand the grasshopper spectrum, and improve the control effect.
3. Gradually establish weed monitoring points to carry out weed forecasting and drug resistance monitoring. In recent years, the success rate of farmland weed population has increased, which has increased the difficulty of chemical weeding. It is necessary to establish a regional weed monitoring station and gradually establish a sound monitoring system for farmland weed systems. Strengthen the study of farmland weed population succession and prediction of malignant weed disaster prediction, and monitor the development of resistance of weedy weeds to provide scientific basis for controlling weed control.
4. Strengthen the scientific use and management of long-lasting herbicides. China has a vast territory, and the natural conditions vary greatly. The farming methods are complex and diverse. It is necessary to carry out scientific research on the long-lasting herbicides and the residual phytotoxicity in the soil in different agro-ecological zones, and to formulate technical specifications for different ecological zones. In the use and management of long-lasting herbicides, it is necessary to standardize the areas of use, crops and technical models, take the path of scientific compounding, reduce the amount of use, reduce the accumulation in the soil, and strictly follow the test-demonstration-promotion procedures. Carefully organize, strengthen guidance, prevent the occurrence of phytotoxicity.
5. Strengthen technical training, publicity and popularization, and promote the healthy and sustainable development of farmland grassland control. The herbicide application dose, application period and application technology are strict, and it is difficult for farmers to master. If improperly used, phytotoxicity will occur and cause losses to agricultural production. It is recommended to strengthen the training and publicity of weed comprehensive treatment technology, especially chemical weeding technology, promote the popularization to grassroots agricultural technicians and farmers, promote the healthy and sustainable development of grass damage control, and contribute to the prevention of farmland diseases and the protection of agricultural harvest.
Author: Huang Hui
1. Gradually establish and implement a technical system for comprehensive management of farmland weeds. Under the guidance of the "prevention-based, comprehensive prevention" plant protection policy, based on the principle of "safety, economy, high efficiency, and increased production", the establishment and implementation of agricultural measures as the basis, chemical control as the main means, ecological regulation, machinery and Artificial weeding is an auxiliary technical system for comprehensive management of farmland weeds.
2. Adapt to the development of agricultural production, develop and promote the supporting chemical weeding technology. The changes in agricultural production and management methods, farming methods and farmland weed communities have continuously raised new issues for chemical weeding. For example, the promotion of dry cultivation and thinning of rice, the promotion of throwing techniques, and the changes in farming methods such as intercropping, intercropping, no-tillage, and plastic film mulching require the development and promotion of chemical weeding techniques. In view of the problem of weed population succession and drug resistance, it is recommended that the crops be rationally rotated, strengthen the scientific compounding and rotation use of herbicide varieties, expand the grasshopper spectrum, and improve the control effect.
3. Gradually establish weed monitoring points to carry out weed forecasting and drug resistance monitoring. In recent years, the success rate of farmland weed population has increased, which has increased the difficulty of chemical weeding. It is necessary to establish a regional weed monitoring station and gradually establish a sound monitoring system for farmland weed systems. Strengthen the study of farmland weed population succession and prediction of malignant weed disaster prediction, and monitor the development of resistance of weedy weeds to provide scientific basis for controlling weed control.
4. Strengthen the scientific use and management of long-lasting herbicides. China has a vast territory, and the natural conditions vary greatly. The farming methods are complex and diverse. It is necessary to carry out scientific research on the long-lasting herbicides and the residual phytotoxicity in the soil in different agro-ecological zones, and to formulate technical specifications for different ecological zones. In the use and management of long-lasting herbicides, it is necessary to standardize the areas of use, crops and technical models, take the path of scientific compounding, reduce the amount of use, reduce the accumulation in the soil, and strictly follow the test-demonstration-promotion procedures. Carefully organize, strengthen guidance, prevent the occurrence of phytotoxicity.
5. Strengthen technical training, publicity and popularization, and promote the healthy and sustainable development of farmland grassland control. The herbicide application dose, application period and application technology are strict, and it is difficult for farmers to master. If improperly used, phytotoxicity will occur and cause losses to agricultural production. It is recommended to strengthen the training and publicity of weed comprehensive treatment technology, especially chemical weeding technology, promote the popularization to grassroots agricultural technicians and farmers, promote the healthy and sustainable development of grass damage control, and contribute to the prevention of farmland diseases and the protection of agricultural harvest.
Author: Huang Hui
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