The efficacy of herbicides is often influenced by many factors. Compared with pesticides and fungicides, the use of technology is particularly complicated.
Temperature and humidity issues
When herbicides are applied at high temperatures and high humidity, weeds are easily absorbed and the weeding effect is significant. It is not that the higher the temperature, the better. When the temperature reaches the limit, the sprayed liquid is quickly evaporated, especially Herbicides that are volatile and light-cleavable are counterproductive. It is generally best to use herbicides at or around 10 o'clock in the morning or in the evening on a windless day.
Soil moisture content problem
Soil moisture, high water content, favorable crops and weeds thrive, and herbicides can enhance the weed absorption capacity, accelerate the transport in the body, and make the herbicide kill the weeds; Dry and little rain, crops and weeds grow slowly, and crops grow weaker, so the drug resistance is poor, and weeds will make the stems and leaves form a better cuticle and remove fruit micelles, stems and leaves become dry, The liquid is difficult to be absorbed and transmitted by the weeds. Therefore, it is necessary to increase the liquid amount of the herbicide in dry weather and increase the amount of spray water accordingly.
Soil pH problem
Excessive acid or alkali in the soil will make the herbicide play a role in decomposition, directly affecting the herbicide's herbicidal power.
Use dose problem
Can not blindly increase the amount of herbicides used, some farmers in order to enhance the weeding effect, blindly increase the dosage, the results are often prone to phytotoxicity.
A seedbed or seedling bed is the local soil environment in which seeds are planted. Often it comprises not only the soil but also a specially prepared cold frame, hotbed or raised bed used to grow the seedlings in a controlled environment into larger young plants before transplanting them into a garden or field. A seedling bed is used to increase the number of seeds that germinate.
Greenhouse Seedling Bed,Stainless Greenhouse Seedling Bed,Greenhouse Seedling Nursery Bed
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