Pasture field weeding method
Effectively controlling the growth of weeds in the field during forage grass growth is a management step that can improve pasture production and quality. There are two critical periods in which weeds threaten pastures. First, at the seedling stage, forage grasses grow slowly and are easily inhibited by weeds. The adverse effects on future growth are high summer temperatures, high rainfall, and weeds. Rapid growth, affect the growth of grass and grass production. The following methods are used to control weeds: 1. Biological control methods: First, pre-planting treatment: Deep plowing, overturning, and burying before forage grass sowing can effectively inhibit the initiation of weeds in weeds and reduce the occurrence of weeds. . The second is the selection of sowing season: the weeds in spring sowing are mainly weedy weeds and other weeds that germinate. The damage is heavier than other seasons. Therefore, the best sowing in autumn is when weed growth is weak and the growth of forage grass seedlings is good. Weeds are also more competitive. Third, fertilization management: Generally, weeds are sensitive to nitrogen fertilizer. Excessive application of nitrogen fertilizer will stimulate the growth of weeds, but the demand for nitrogen fertilizer is relatively small. Therefore, when topdressing, it is necessary to control nitrogenous fertilizers and increase phosphate fertilizers and trace fertilizers. Second, the cultivator weeding method: In the pasture every time after the castration, in time between the rows by hand rake, plate rake or cultivator, etc. shallow shallow ploughing, not only to eliminate weeds, loose soil, but also to protect against Drought, increased ground temperature and prevention of soil salinity. Third, the chemical control law: Many growers mistakenly believe that herbicide can not apply herbicide field, in fact, otherwise, as long as the proper method, the application of herbicide can also get better results. Herbicides commonly used formulations are wettable powder, water solvents, emulsions, etc., must be clear before use instructions for use, is the alternative herbicide or selective herbicide, is used to kill monocotyledonous weeds, or kill dicots Weeds. In order to ensure the weeding effect, it is best to combine several herbicide combinations for comprehensive weed control. However, it is important to master the concentration of herbicides and to eliminate the use of herbicides so as to avoid causing damage. Forbidden use during pasture period. After 20-30 days of herbage use, livestock and poultry can be fed to avoid livestock poisoning. China Agricultural Network Editor