Broad bean disease is one of the major obstacles to the capture of high yields of broad beans. Most of the farmers’ friends prefer to use pesticides to control the diseases of broad bean, but their effectiveness is minimal. The production practice shows that the comprehensive control effect is better for broad bean disease. The specific measures are as follows:
1. Prevention of disease before waterlogging: Waterlogging is the main factor that induces and aggravates the diseases of broad bean, so the disease prevention must first prevent stains. The broad bean field should be equipped with "three channels" (weigou, Xianggou, and Yaogou). The water can be drained by bright water, the dark water can be filtered, the rain can be kept dry, and there can be no accumulation of water in the fields, so that the microclimate in the field is favorable for the growth and development of broad beans. Adverse diseases occur.
2. Increased resistance to fertilization: Although there are nitrogen-fixing rhizobial bacteria in broad bean, it is still necessary to apply nitrogen fertilizer in an appropriate amount and increase phosphorus, potassium, and boron fertilizers. Potassium fertilizer in particular plays an important role in preventing stem diseases. Increase the application of organic fertilizers to control the amount of chemical fertilizers, so that the broad bean plants can grow stably without prosperous growth and improve the physiological resistance.
3, loose soil to promote root Zhuang: loose soil can make the soil loose, eliminate weeds, reduce waterlogging, increase ground temperature, speed up the decomposition of fertilizers, promote the development of broad bean roots and rhizobial formation, to ensure that the growth and development of broad bean stability, enhance stress resistance . Loose soil should be done so as not to injure roots, stems and leaves, buds, and pods to prevent invasion of pathogens from the wound.
4, pruning light: According to the land force and seedlings promptly knocked off the main stem, invalid branches and the top heart, can reduce nutrient consumption, but also can improve the ventilation and light conditions in the field, inhibit the propagation and spread of bacteria, reduce the rate of diseased plants.
5, application of drug control condition: 25% of carbendazim 100 grams of water spray 50 kg control of scab and blight. Mu with 15% triadimefon 50 grams spray 50 kg of water to prevent rust. In the early stage of disease, 70% thiophanate-methyl 1000-time solution was used for irrigation to control the wilt disease. The number of application can be flexibly controlled according to the condition.
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