Cold winter vegetables need to pay attention to the following points:
First, we must strengthen environmental regulation. There are three methods: one is to reduce the evaporation of soil moisture and reduce the humidity in the greenhouse by means of planting lines covering the film and the operation line covering wheat straw, or covering the film with the entire greenhouse. The second is to hang a light curtain on the back wall to increase the intensity of light in the shed, increase the temperature inside the shed, avoid the field cover, and induce disease. The third method is to use two ventilation methods to eliminate moisture in the shed, while eliminating harmful gases in the shed and supplementing the carbon dioxide concentration in the shed.
Second, we must improve the disease resistance of vegetables. There are two ways to do this: First, foliar fertilizer application to supplement plant growth needs and improve plant disease resistance. Under normal circumstances, potassium dihydrogen phosphate can be sprayed 300 times or 1000 times more foliar fertilizer. Plants with weaker plant growth may be treated with 600-fold supplementation of Yunda 120 plus 500-fold Nucleotide Leaf Fertilizer. The second is to promote root growth, increase the absorption and utilization of nutrients, and ensure the normal growth of plants.
Third, rational use of chemical agents. In a high-humidity environment, spraying often increases the humidity in the greenhouse, which is not conducive to the prevention and treatment of diseases. Especially in the case of cloudy days, the effect of spraying and preventing disease will be very poor. Therefore, the combination of spraying and fumigation should be adopted to prevent and control the disease. Disease. Such as the prevention of gray mold and sclerotinia disease, can be used net saccharomyces, spray mothionine method for comprehensive prevention and treatment. However, in the net use of smoked bacteria must be based on the different crops, pay attention to the control of smoke time. If smoked on bean crops or eggplants, 200 grams of sclerotia are used in the mu, and the time of smoking should be controlled within 6-8 hours. If the smoke is smoked for a long time, it is prone to injury.
First, we must strengthen environmental regulation. There are three methods: one is to reduce the evaporation of soil moisture and reduce the humidity in the greenhouse by means of planting lines covering the film and the operation line covering wheat straw, or covering the film with the entire greenhouse. The second is to hang a light curtain on the back wall to increase the intensity of light in the shed, increase the temperature inside the shed, avoid the field cover, and induce disease. The third method is to use two ventilation methods to eliminate moisture in the shed, while eliminating harmful gases in the shed and supplementing the carbon dioxide concentration in the shed.
Second, we must improve the disease resistance of vegetables. There are two ways to do this: First, foliar fertilizer application to supplement plant growth needs and improve plant disease resistance. Under normal circumstances, potassium dihydrogen phosphate can be sprayed 300 times or 1000 times more foliar fertilizer. Plants with weaker plant growth may be treated with 600-fold supplementation of Yunda 120 plus 500-fold Nucleotide Leaf Fertilizer. The second is to promote root growth, increase the absorption and utilization of nutrients, and ensure the normal growth of plants.
Third, rational use of chemical agents. In a high-humidity environment, spraying often increases the humidity in the greenhouse, which is not conducive to the prevention and treatment of diseases. Especially in the case of cloudy days, the effect of spraying and preventing disease will be very poor. Therefore, the combination of spraying and fumigation should be adopted to prevent and control the disease. Disease. Such as the prevention of gray mold and sclerotinia disease, can be used net saccharomyces, spray mothionine method for comprehensive prevention and treatment. However, in the net use of smoked bacteria must be based on the different crops, pay attention to the control of smoke time. If smoked on bean crops or eggplants, 200 grams of sclerotia are used in the mu, and the time of smoking should be controlled within 6-8 hours. If the smoke is smoked for a long time, it is prone to injury.
Rushan Jinguo Food Co., Ltd , https://www.jinguofood.cn