In the season when the temperature is low, in order to bring vegetables to market in the morning and sell a good price, in recent years, vegetable growers often use the method of covering the plastic film to increase temperature, heat preservation, moisture preservation, and fertilizer to promote early maturation of vegetables. At the same time, the application of herbicides and weeds increase labor efficiency. However, many years of experience with chemical weeding in the membrane tells us that if the herbicides are used improperly or are misused, weeds must not be eradicated. Second, they cause phytotoxicity to vegetables. Third, they pollute the environment. Reduce the market value of vegetables. In order to give full play to the effects of herbicides, the herbicides suitable for use in vegetables such as eggplant, beans and leafy vegetables are introduced as follows. First, eggplant vegetables. Tomatoes, eggplants, peppers, etc., optional herbicides are: First, with 72% Dole EC, 100 to 150 ml per mu or 48% dimethoamine EC, 150 to 300 ml per mu, respectively, watered 30 kg in Spray after sowing and cover the film in time. The second is to use 33% weeding through EC, 150-300 ml per mu or 24% Goil EC, 50-100 ml per mu, or 50% saikojin wettable powder, 50 g per mu, or 50% large Huili Wettable powder, 100 to 150 grams per acre, respectively, watered 40 to 50 kilograms, after sowing after the emergence of spraying agent after covering the film. Second, gourd family vegetables. Such as zucchini, cucumber, pumpkin, loofah, etc., optional herbicides are: 33% weeding through EC 100 ~ 200 ml per mu, or 20% grass liquid water per mu 1000 ml, or 50% acetochlor EC per mu 70 ~ 100 ml, or 48% trifluralin EC 100 ~ 150 ml per acre, respectively, dilute 40 ~ 50 kg, after spraying the cover film, and then punch the seedlings. Third, bean vegetables. Such as peas, green soybeans, cowpea, broad beans, etc., optional herbicides: First, there are 48% trifluralin EC 100 ~ 150 ml per mu, watered 40 ~ 50 kg, or 50% oxaprofen wettable powder, each Mu active ingredients 23 to 45 grams, watered 40 to 50 kilograms, soil preparation before planting mixed soil, and then sowing film. Second, there are 33% weeding through EC, 150-200 ml per mu, watering 40-50 kg, or 50% acetochlor EC 70-150 ml per mu, watering 40-50 kg, or 50% Simazine Wettable powder, 33 to 100 grams of active ingredient per acre, watered 40 to 50 kilograms, applied to the film before emergence. Fourth, cruciferous vegetables. Such as Chinese cabbage, Chinese cabbage, Brassica oleracea, cabbage, cauliflower, etc., optional herbicides are: 33% weeding through EC 100-150 ml per mu, or 48% Lacoste EC 150-200 ml per mu, or 50 Percentage of killing grass emulsifiable concentrate 100 to 150 milliliters per mu, or 24% of Gore's EC 50 to 70 milliliters per mu, or 50% of large profit wettable powder 100 to 200 grams per mu, diluting 40 to 50 kg, respectively Spray on the surface before coating. During the application of herbicides in the membrane, in order to be safe, economical, and effective, we must pay attention to several points in technical operations: First, when herbicides are applied, the water volume per mu should not be too low, only the humidity is ensured. In order to enhance the herbicide development and penetration ability; Second, spraying can not be repeated spraying, to be in place one at a time, to avoid increasing the concentration of phytotoxicity; Third, trifluralin, oxatrione strong volatile, after application Must use a mixture of gingiva and soil mix, mix deep to 2 to 3 cm; Fourth, the cover must be strict, neither leakage medication, nor cover film, found that ruptured membrane should promptly cover. Organic shiitake mushroom extract powder is extracted from the organic mushroom fruiting body. In the extraction process, the solvent selected is water or organic ethanol.
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