Herbicides, like chemical fertilizers, have been accepted by the majority of farmers. The use of herbicides can reduce labor intensity and increase weed control in the field. However, improper use may also cause undue losses to farmers because of the harm caused by the disease. In the spring sowing, how to reduce the herbicide harm, farmers friends, may wish to consider from the following aspects.
1. The use of herbicide herbicides on the road has a strict scope of use, and sometimes the difference between the two can cause a disaster. Such as: butachlor and acetochlor, bensulfuron-methyl and chlorimuron-ethyl, although only a word, but one used in paddy fields, one in dry fields. Rice, soybeans, corn, different types of vegetables and crops require different types of herbicides; different types of herbicides are required for the same crops and different growth stages of lower-season (seasonal) crops. Therefore, be sure to pay attention to these factors when purchasing drugs. When using new varieties with caution, we must be careful about the herbicides that have never been used before. We should first pass small-scale tests or see if the results of use by surrounding people are safe. Afterwards, decide whether to use them or not.
2. Pay attention to the concentration of herbicides Some farmers like to increase the concentration of herbicides used. Many pesticide companies also like to recommend farmers to use high-concentration pesticides. (Agrochemical companies do this, one can sell more medicines, and second, they can increase control efficiency, and draw more customers back). It is dangerous. Randomly increasing the concentration can cause phytotoxicity to occur. For example, acetochlor can cause soy phytotoxicity and 2,4-dibutyl butyl ester can cause corn phytotoxicity.
3. Attention to Dangers to Drift Many drug-harm disputes are often caused by pesticide drift. This is because each crop has some sensitive pesticide species. For sensitive crops as long as the trace amount of herbicide can cause phytotoxicity. For example, the drift of droplets of 2,4-dibutyl phthalate can affect grapes that are beyond 100 meters; vegetable fields that are treated with quinclorac acid can cause phytotoxicity. There are many examples of crops sensitive to pesticides. For example, dicotyledonous plants such as grapes and soybeans are sensitive to 2,4-dibutyl-ester, rice is sensitive to chlorimuron-ethyl, and pull-sensitive, and B' chloramine is to cucumber, spinach, wheat, millet Crops such as sorghum and indica are not safe. Atrazine is not safe for vegetables and pears and peaches.
4. Pay attention to the long residual period of some herbicides in the lower-season (season) crops and affect the lower-season (season) sensitive crops. For example, in newly opened paddy fields, vegetable plots, and newly-built greenhouses, young seedlings are not long, rotted or dead, mostly due to the use of herbicides in the cap. Therefore, in the selection of herbicides, we must consider what kinds of crops should be planted in the next season (seasonal). For the following crops, beets, potatoes, melons, sorghum, rice, cotton, vegetables, etc., atrazine and chlorine should not be used. For instance, chlorsulfuron, chlorsulfuron, etc. are used as herbicides for dead crops; when soybeans and wheat are planted in lower crops, the use of atrazine in the upper crop must be reduced by half. The sensitivity of different crops to different herbicides is different. When selecting herbicides, it is necessary to pay attention to the influence of the lower crop and the next crop. The safest and most reliable way is to consult the agricultural technicians or agrochemical companies, and follow the instructions. Then decide what type of herbicide to use.
1. The use of herbicide herbicides on the road has a strict scope of use, and sometimes the difference between the two can cause a disaster. Such as: butachlor and acetochlor, bensulfuron-methyl and chlorimuron-ethyl, although only a word, but one used in paddy fields, one in dry fields. Rice, soybeans, corn, different types of vegetables and crops require different types of herbicides; different types of herbicides are required for the same crops and different growth stages of lower-season (seasonal) crops. Therefore, be sure to pay attention to these factors when purchasing drugs. When using new varieties with caution, we must be careful about the herbicides that have never been used before. We should first pass small-scale tests or see if the results of use by surrounding people are safe. Afterwards, decide whether to use them or not.
2. Pay attention to the concentration of herbicides Some farmers like to increase the concentration of herbicides used. Many pesticide companies also like to recommend farmers to use high-concentration pesticides. (Agrochemical companies do this, one can sell more medicines, and second, they can increase control efficiency, and draw more customers back). It is dangerous. Randomly increasing the concentration can cause phytotoxicity to occur. For example, acetochlor can cause soy phytotoxicity and 2,4-dibutyl butyl ester can cause corn phytotoxicity.
3. Attention to Dangers to Drift Many drug-harm disputes are often caused by pesticide drift. This is because each crop has some sensitive pesticide species. For sensitive crops as long as the trace amount of herbicide can cause phytotoxicity. For example, the drift of droplets of 2,4-dibutyl phthalate can affect grapes that are beyond 100 meters; vegetable fields that are treated with quinclorac acid can cause phytotoxicity. There are many examples of crops sensitive to pesticides. For example, dicotyledonous plants such as grapes and soybeans are sensitive to 2,4-dibutyl-ester, rice is sensitive to chlorimuron-ethyl, and pull-sensitive, and B' chloramine is to cucumber, spinach, wheat, millet Crops such as sorghum and indica are not safe. Atrazine is not safe for vegetables and pears and peaches.
4. Pay attention to the long residual period of some herbicides in the lower-season (season) crops and affect the lower-season (season) sensitive crops. For example, in newly opened paddy fields, vegetable plots, and newly-built greenhouses, young seedlings are not long, rotted or dead, mostly due to the use of herbicides in the cap. Therefore, in the selection of herbicides, we must consider what kinds of crops should be planted in the next season (seasonal). For the following crops, beets, potatoes, melons, sorghum, rice, cotton, vegetables, etc., atrazine and chlorine should not be used. For instance, chlorsulfuron, chlorsulfuron, etc. are used as herbicides for dead crops; when soybeans and wheat are planted in lower crops, the use of atrazine in the upper crop must be reduced by half. The sensitivity of different crops to different herbicides is different. When selecting herbicides, it is necessary to pay attention to the influence of the lower crop and the next crop. The safest and most reliable way is to consult the agricultural technicians or agrochemical companies, and follow the instructions. Then decide what type of herbicide to use.
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