Why does the use of herbicides cause drug damage? How to prevent it?
Why does herbicide use cause phytotoxicity? How to prevent it? The application area and amount of herbicides increased year by year, saving farmers time for weeding, but due to artificial reasons, improper application of herbicides also brought adverse effects on production. 1. Improper storage, blind misuse. Due to improper storage of herbicides, packaging labels fall off or labels are corroded, and they are not clearly seen. Herbicides are mistakenly applied as pesticides or fungicides, or they are not applied according to the label instructions of herbicides, resulting in phytotoxicity. Prevention method: Keep the herbicide properly to prevent the label from falling off. If the label is found missing, immediately attach a new label indicating the name and application method of the herbicide. 2. Too much, too much concentration. Herbicide application and concentration than pesticides, fungicides more stringent. Each herbicide has a prescribed dosage. For example, excessive amounts of superstar can cause phytotoxicity to wheat. Prevention methods: strictly control the dosage and concentration of herbicides. 3. Inappropriate medication. Herbicides can cause phytotoxicity if not applied properly. For example, when many herbicides are applied, they are contaminated on seeds and are prone to phytotoxicity; when herbicides are sprayed near sensitive crops and there is strong wind, a large number of dew drops drift on sensitive crops and cause phytotoxicity. Prevention methods: according to weeds, herbicides, environmental conditions, choose different application methods, master the safe and efficient application of herbicides technical points. 4. Blindly mixing pesticides. Herbicide mixture can improve weeding effect, treat disease, insect and grass simultaneously, save medicine, save labor, time and money, etc. However, if blindly mixed, not only no synergy effect, but will reduce the efficacy, resulting in phytotoxicity. Prevention: Prohibition of indiscriminate use of herbicides. Mixed pesticides should be mixed observation, efficacy, toxicity test. According to the test, the common varieties that can reduce the efficacy and cause phytotoxicity after mixing are: propanil and organophosphorus, carbamate pesticides; mixed use of clopramide and bentazon; mixed use of dimethyltetrachloro and acidic pesticides; mixed use of bentazon and bentazon, all of which will cause phytotoxicity. Click for mass herbicide application technology Click for mass pesticide application technology
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How to use herbicide in forest nursery?
Can I use herbicide to grow Schisandra chinensis? Will it cause drug harm? 1. Soil residual drug damage 1. Symptoms. In the middle stage of growth, the leaves wilted, the leaves recovered straight in the morning and evening, the plants were not long, similar to drought, and the root system developed slowly. 2. The reason. Drugs such as triazobenzene, sulfonylurea, Imidazolinone, etc.
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How to use herbicide to grow autumn radish?
How to use herbicide to grow autumn radish? What is the method of use? When radish is planted in autumn, there are a large number of weeds in the field, so herbicides can be selected for chemical weeding according to the actual situation. Before sowing soil ban, you can choose 48% trifluralin EC 100ml 150ml (dosage per mu, the same below.
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