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The implementation of chemical weeding in vegetable fields is a measure with low investment, quick effect and high economic efficiency, but we must pay attention to the following six aspects:
One is fine land preparation. Land treatment requires that the ground be leveled so that weeds can germinate together to facilitate the elimination of most weeds after one application;
The second is the right amount of medication. The amount of sandy soil should be reduced as appropriate, and the soil should be increased as appropriate. The film should be covered and cultivated. The ground temperature is high and the humidity is high, which can improve the efficacy. The dosage should be reduced by 20%-30% compared with the open field;
The third is uniform application. After the agent is diluted, it should be sprayed evenly on the soil surface.
The fourth is to use drugs alternately. Long-term application of a single herbicide variety will reduce the weed sensitivity and control effect. Therefore, it is necessary to alternately apply different herbicide varieties to improve the chemical herbicidal effect;
The fifth is to prevent failure. Some herbicides are volatile, and it is not easy to fail after mixing in time.
Six is ​​to pay attention to the residue. There are many varieties of vegetables, and the growth period varies. When selecting herbicides, the varieties with shorter duration should be used to avoid or reduce the residual amount on vegetable products to ensure food safety.
One is fine land preparation. Land treatment requires that the ground be leveled so that weeds can germinate together to facilitate the elimination of most weeds after one application;
The second is the right amount of medication. The amount of sandy soil should be reduced as appropriate, and the soil should be increased as appropriate. The film should be covered and cultivated. The ground temperature is high and the humidity is high, which can improve the efficacy. The dosage should be reduced by 20%-30% compared with the open field;
The third is uniform application. After the agent is diluted, it should be sprayed evenly on the soil surface.
The fourth is to use drugs alternately. Long-term application of a single herbicide variety will reduce the weed sensitivity and control effect. Therefore, it is necessary to alternately apply different herbicide varieties to improve the chemical herbicidal effect;
The fifth is to prevent failure. Some herbicides are volatile, and it is not easy to fail after mixing in time.
Six is ​​to pay attention to the residue. There are many varieties of vegetables, and the growth period varies. When selecting herbicides, the varieties with shorter duration should be used to avoid or reduce the residual amount on vegetable products to ensure food safety.
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