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The use of herbicides in vegetable fields should choose the right type of drug, and fine finishing of the land, but also the use of herbicides at the right time, spraying should be uniform and pay more attention to the weather, because the weather will affect the efficacy, the use of herbicides at the right temperature can make it play a good effect, low temperature or high temperature will become more and more critical, especially when the temperature changes sharply, it will make the pesticide damage high, and it will affect the normal growth of vegetables.
Choose the right herbicide
When using herbicides in vegetable fields, we must choose the right herbicide for it, because the current herbicides have systemic conduction type and contact killing type, and the systemic conduction herbicide will be conducted to other leaves after being absorbed by the leaves of plants, and will also be absorbed by the roots of plants, and the contact herbicides are sprayed on the soil surface or the leaves of plants, and will not be conducted to other leaves, nor will they be conducted to the roots or fruits of other plants, so it is best to use contact herbicides in vegetable fields. This keeps the vegetables safe.
The land is delicately organized
When herbicides are used in the mining land, the land must be finely organized, the land is leveled, finely broken and moistened, and good conditions for weed germination are created, so that weeds can be promoted to germinate at one time, and after they germinate, the herbicides can be sprayed in time to eliminate all these weeds, which can improve the overall weeding effect.
Choose the right time to spray the herbicide
When herbicides are used in vegetable fields, time is extremely important, herbicides can not be used in the seedling stage and flowering period of vegetables and the period of poor growth, because the vegetable resistance at this time is relatively poor, easy to be affected by herbicides, which will affect its normal growth, in addition to the use of herbicides in vegetable fields, it is also necessary to pay attention to the uniform use of drugs to ensure that the spraying effect improves the weeding effect. In addition, the use of herbicides in vegetable fields should also pay attention to weather conditions, and cannot be selected and cannot be used in weather where the temperature is too high or too low, otherwise it will affect the effectiveness of the drug.
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Use herbicides in places where there are more weeds, use herbicides regionally, wear gloves when using herbicides, and wear masks, where there are no weeds, you don't need to use herbicides, and you should pay attention to the way you use herbicides.
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Be sure to choose the right herbicide according to the actual situation, be sure to pay attention to the use time of the herbicide, pay attention to the safety of the herbicide, pay attention to the ingredients of the herbicide, dilute it, and then spray.
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Pay attention to the variety of weeds, and pay attention to the maintenance of the dosage, but also pay attention to the correct use of the method, but also to master the strategy in this regard, reasonable use of the drug.
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When using herbicides in vegetable fields, it is important not to spray herbicides directly on the leaves and branches of vegetables, because if they are sprayed on vegetables, vegetables will be affected by herbicides and wilt. If herbicides are to be used in the vegetable field, it is recommended to use a low nozzle, only spray weeds and do not spray on the vegetables, buy herbicides when buying herbicides, and bypass the vegetables that have been set in the spraying, and if you spray herbicides to eat vegetables, you should wash them before eating, and you can not eat vegetables with pesticide residues
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Herbicides will inevitably be used in the growth process of vegetables or crops, so the following three points should be paid attention to when using herbicides.
1. The time of herbicide use.
Generally, most herbicides will be chosen before sowing or after the seeds are sown, when they have not yet germinated, because at this time, the chemical residue of the herbicide will not be on the vegetables, and the vegetables will not be killed. When playing herbicides, we should also pay attention to the time, many times we should choose when the grass has just grown, because at this time, the weeds can be killed from the roots, and can not wait until the weeds grow too lush to use the medicine, because the effect is not very obvious at this time, and it is easy to not work. When applying herbicides, it is also necessary to look at the weather, and do not choose to apply before the rain, because it is likely that the rain will wash away the properties of the herbicide, and even flow the chemicals of the herbicide into other vegetable fields.
Second, herbicides should be sprayed evenly.
Different herbicides use different concentrations, but generally before spraying herbicides, the soil should be treated to make the soil as flat as possible, and keep it a little broken, so that weeds can grow, but also can achieve a one-time spraying of herbicides, can kill most of the weeds, improve the efficiency of weeding. Moreover, it is necessary to shake it at any time during the spraying process to prevent the herbicide from precipitating, resulting in too high a concentration in the back, and it will not be able to achieve the effect of uniform weeding. <>
3. Rational selection of herbicide varieties.
Because the crops planted in each piece of land are different, we should also pay attention to the variety of herbicides when choosing herbicides, because after some herbicides are sprinkled in the soil, the effect time is too long, and it is likely to pollute the crops behind, resulting in crops not growing or even rotting roots. And try not to use one herbicide all the time in a vegetable field, because it will produce resistance, and several herbicides can be used alternately to improve the efficiency of weeding. <>
To sum up, we should pay attention to the above three points when using herbicides, and the rational use of herbicides can improve the effect of weeding.
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First, try to use drugs before seedlings. Chemical weeding in vegetable fields mostly uses soil treatment, but it must be used before sowing or before germination after sowing, and the weeding effect should be good at the initial stage of weeds. In this way, the contamination and residue of the agent on the vegetables can be avoided or reduced.
Second, the soil should be flat and moist. When treating the soil with herbicides, the soil requires the soil surface to be flat, finely crushed and moist, which can not only ensure uniform pesticide application, but also create favorable conditions for weed germination, so that weeds germinate consistently, so as to achieve the purpose of killing most of the weeds with one drug and improve the effect of weeding.
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It is necessary to choose a safe and pollution-free one, do not choose one that is too toxic, and also pay attention to the time of spraying, and also pay attention to the scope of spraying, and do not spray a large area.
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When weeding, be sure to divide the area in advance, be sure to think about what kind of herbicide to use, and then be sure to pay attention to the weather when using, preferably in rainy days, and then be sure to do a good job of protective measures, spray evenly, and don't expose your ** to the outside.
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There is still a lot to know, and when using herbicides, you should also pay attention to the efficacy, and you should also pay attention to the appropriate concentration, and then you also need to choose the right agent according to the crop, do not use too much at one time, and pay attention to the ratio between herbicides and water.
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Pay attention to the dosage of the drug, but also pay attention to the harm, to dilute it with water, and to consider all aspects, and to pay attention to the ingredients, pay attention to the harm of the drug.
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First of all, we should pay attention to the proportion and dosage of herbicides, and we should also learn professional use methods, and we should prescribe the right medicine, choose some herbicides of better quality, when using herbicides, we must avoid rainy weather and windy weather, try to choose to use it on sunny days, so as to avoid affecting the effect of insecticides.
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It is forbidden to use drugs in windy and bad weather: the use of herbicides in windy weather is easy to cause herbicides to drift, one is that the weeding effect cannot be achieved, and the other is that the herbicides may be blown to other crops, which is easy to cause pesticide damage. Other bad weather such as frost, rain and snow, cold snaps, etc. can not be sprayed, and more attention should be paid to the weather when using medicine.