Glyphosate chemical name glycine glycine, referred to as phosphinic acid. In recent years, the use of 10% glyphosate water to control weeds in orchards has been recognized by many farmers. According to the pesticide network , glyphosate usually starts to be effective one week after use. Generally, it is partially dried and died in the ground for 10-15 days. After 1 month, the lower part of the ground becomes brown and rot, and the grass killing effect can reach 100%. It is a herbicide herbicide that is mainly used in drylands to control all kinds of annual and perennial weeds.
Glyphosate mainly rots the whole weeds, including the ground green leaves and underground roots, through the systemic conduction of the ground green tissue. It is an orchard herbicide commonly used by the majority of fruit farmers. However, while the fruit farmers use glyphosate in large quantities, they also cause unnecessary losses to the orchard due to improper operation.
First, the use of glyphosate for weeding several times during the year, if improperly operated, infiltrated into the soil, causing damage to the underground roots of the fruit trees, resulting in malnutrition in the upper part of the earth, yellow leaf phenomenon, weak tree, affecting the germination, flowering and seating of the fruit trees in the following year. fruit.
Second, the use of glyphosate in orchards can also cause zinc deficiency in the soil. Glyphosate ionizes anions in aqueous solution and reacts with zinc in the soil after entering the soil, hindering the absorption of zinc by the roots, thereby causing fruit trees to exhibit lobular disease. The symptoms of zinc deficiency caused by the abuse of glyphosate occur in both apple trees and peach trees, and severe cases have endangered tree life.
Third, glyphosate weeding is mainly transmitted from the stem to the root through the leaf surface, causing the root to rot, thereby completely eradicating weeds. If the leaf area is small and the amount of absorbed medicine is insufficient, it will only be half the effort. The China Pesticide Network recommends that it should be combined with the weather forecast to spray in the rain-free weather to prevent the liquid from entering the soil.
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