Herbicides use technical methods correctly
The purpose of applying herbicides to the field is to weed control and grass, to protect the normal growth of crops, and to increase the yield and quality of crops. However, current chemical herbicides have corresponding weed control functions, but they also cause more or less damage to crops, so we need to consider how to use herbicides scientifically and reasonably.
1 Understand the natural environment in which herbicide fields are used
Weed types, herbicide functions, and natural environmental factors of the field are interdependent and mutually restrictive. Before using the herbicide, you must understand the relevant natural factors of the field, such as sunlight, temperature, rainfall and rainfall time, soil properties, etc., in order to achieve the best herbicide effect.
2 Apply the corresponding herbicide to the weed type
According to the type of weeds in the field and the situation of crops, the selection of herbicides with corresponding functions is the premise of using herbicides. Before selecting the herbicide, it is clear to prevent the main type of weeds in the field, and to remove the functional properties of the herbicide, such as soil treatment agent or stem and leaf treatment agent.
3 moderate dosage
Reasonable use of herbicides should be economical, efficient, and safe. In detail, it is to use less doses to achieve better weed control effects, but also to have less impact on field crops. Because if the dosage is too large, it is very easy to damage the crops. Although it has achieved the effect of controlling weeds, it also harms a large number of crops and does not achieve the fundamental purpose. However, the amount of the drug used is too small, and the effect of controlling weeds is poor and incomplete, and it also plays a fundamental role in herbicides. This requires accurate weighing of the dose according to the herbicide-related instructions before using the herbicide, and evenly spraying on the field when used.
4 The timing of medication is appropriate
The use of herbicides should not only be moderate, but also the timing of the use of the herbicides. Because each herbicide has a control period for weed control, it can only be used when the weeds are not strong enough. Get the best control effect. Therefore, farmers should use herbicides according to the nature of the herbicides and the occurrence of weeds, as well as the growth period of weeds and crops.
5 Master the use of herbicides
As a chemical, herbicides should be used with strict conditions and should not be used arbitrarily. Moreover, only when the application method is consistent with its related requirements, can achieve the desired herbicidal effect and increase the yield of crops. The current common methods of using herbicides mainly include stem and leaf treatment of weeds and soil surface treatment. That is, stem and leaf treatment is a common foliar spray method, and soil treatment can be sprayed or applied to poisonous soil (fat or sand). .
6 Reasonable mixing of herbicides
Usually there are a variety of weeds in the field, common grasses, sedges and broadleaf weeds, sometimes it is difficult to determine which herbicide to choose, or a herbicide is difficult to control a variety of weeds. At this time, an effective way to solve this problem is to mix herbicides. Practice has shown that mixed herbicides can achieve better herbicidal effects.
7 Strengthening field management
The quality of agricultural measures is also related to the use of herbicides. For example, the land is not leveled before application, the clods are large, and the spraying is difficult to be uniform. Some of the large clods are not sprayed on the back and clods, and the clods will be in the future. After being naturally dispersed, weeds grow on the clods that are not sprayed with the medicine. Therefore, the efficacy of herbicides can only function properly when agricultural measures revolve around the use of technical requirements.
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