1. How to improve the weeding effect of glyphosate
Glyphosate is an organophosphorus-entraining conductive herbicide, and the liquid must be transported to the under-root rhizomes of weeds in order to achieve ideal weed control.
The effect requires weeds with more leaves. Before use, weed leaf area is small and photosynthesis is not strong. Root nutrition is transmitted upwards.
The amount of liquid poured down into the roots is very small and does not produce a good grass-killing effect. On the other hand, weeds have strong photosynthetic activity in the middle and late stages of growth, and photosynthetic products are transmitted from top to bottom.
When medication, the best weeding effect. Therefore, the most important use of glyphosate is to choose the best time for the drug. To grow at the height of weed growth,
The best medication before flowering. The annual weeds are usually 15-20 cm and the weeds are used at a height of about 30 cm. Herbicides have the best weeding effect. Do not consider weeds
During the growth period, blindly spraying and weeding do not achieve the desired results until weeds age. In addition, the type of weed must be considered when determining the drug concentration.
The grass weeds are more sensitive to glyphosate and can be killed by low-dose liquids. When weeding broad-leaved weeds, they must be increased in concentration, and the roots of some rhizomes must be killed.
Weeds require higher concentrations. The age of weeds is large and the drug resistance is increased, and the corresponding dosage should also be increased. For example, when controlling weeds in orchards, the annual transcripts
Weeds can be used 10% glyphosate 500-700 ml of water 30-40 kg, control of annual broad-leaved weeds should be increased to 750-1000 ml, prevent perennial
The amount of vicious weeds should be increased to 1250-1500 ml. However, overdose will quickly kill the plant's conductive tissue, which will adversely affect the absorption of the drug and reduce it.
Efficacy. Therefore, in order to use the medicine economically, the young grass should be killed at a lower concentration, and then the virulent weed should be sprayed with the corresponding concentration after 10 days. Second, it is about
With the problem of compounding glyphosate and other herbicides, some farmers want to eliminate various kinds of grass. In order to save time and labor, other herbicides are added when using glyphosate.
However, the result was not as good as some herbicides could not be mixed with glyphosate, such as Gram-free, paraquat and other fast-acting herbicides (to prevent weeds
The above-ground part of the plant died prematurely and lost the glyphosate's systemic uptake function and reduced the killing effect of glyphosate on the underground grass stems), but it was added to glyphosate
0.1% detergent powder or diesel oil can increase the permeability and adhesion of the liquid and improve the efficacy.
2. Pay attention to the safety of crops when using glyphosate
Glyphosate is an ineffective herbicide. If it is used improperly, it will cause safety hazards for farmers. When farmers use glyphosate for weeding,
There is a protective cover on the spray head, glyphosate floating in the wind, causing phytotoxicity to the crop. There are also some farmers who do not clean the machine after use, resulting in spraying other
In the case of pesticides, spraying the remaining glyphosate pesticides on other crops causes phytotoxicity and causes damage to farmers.
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