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Source: Melon and Fruit Newspaper
Weeds and wheat are plants, and the selectivity of herbicides is limited. To ensure that herbicides kill both weeds and wheat, we must strictly control the amount of herbicides, neither increase nor decrease. The dosages described in the manual are used and adapted to local conditions. Soils with high organic matter content and fine soil particles have a large amount of adsorption to herbicides, and the amount of soil microorganisms is high, the activity is vigorous, and the agents are degraded more, and the application amount should be appropriately increased. The sandy loam soil has larger particles and less adsorption to the medicament. The drug molecules are mostly free in the soil particles, and the activity is strong, which is prone to phytotoxicity, and the dosage can be appropriately reduced. Herbicides are more stable in alkaline soils, are not easy to decompose, have long residual effects, and are easy to cause phytotoxicity to the crops. Therefore, the application time on alkaline soil should be as early as possible and used with caution.
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