How to scientifically manage fruit trees and orchards with grass planted in rural areas?

Weeds in the orchard have been criticized. On the one hand, when there are too many weeds, they will compete with fruit trees for nutrients, light and growth space, thus reducing the yield of fruit trees and affecting their income. On the other hand, pests and diseases often occur in orchards where weeds are out of control. Weeds not only provide habitats for pests and diseases, but also serve as intermediate hosts for weeds every year. To sum up, weed control is a very important link in orchard management.

Chemical weeding chemical weeding is what we often say. Since it was introduced to China in 1950s, it has been used ever since, because it saves time and effort, is economical and efficient. However, chemical weeding is like a double-edged sword, with obvious advantages and disadvantages. Unreasonable use is easy to cause drug damage and tree damage; In addition, long-term use of herbicides will not only increase the resistance of weeds, but also affect the ecological environment. Therefore, it is unwise to only rely on chemical weeding.

Physical weeding mainly includes labor, machinery, plastic film and so on. Of course, it also includes laser, flame and electric weeding. However, due to high cost or imperfection, the latter list is very low in practical application. Manual weeding is the most primitive method. Very thorough, no side effects, but low efficiency. It is usually carried out in carefully managed small orchards, or combined with other weeding methods, such as chemical weeding between rows and manual weeding. When covering and weeding the orchard, manually remove some weeds.

The most common biological weeding is under-forest ecological farming. Herbivores eat grass, such as chickens, ducks, geese and sheep. However, these livestock and poultry have not been well trained, and if they are not handled properly, it will be counterproductive. For example, chickens like to climb high and dig dirt, sometimes damaging trees and roots. The other is biotechnology weeding, which refers to the use of industrial microorganisms, plants, animals and other natural organisms or their tissues and metabolites as biological agents to weed in order to achieve the purpose of weeding.

Must all the weeds in the grass orchard be eradicated? Practice has proved that benign weeds in orchards can improve soil physical and chemical properties, maintain water and soil, and enhance the ability to resist harsh climatic environment. Therefore, controlling weeds is better than weeding. There are two ways to grow grass at present. One is natural growth, eliminating evil and protecting good, and the other is artificial grass. Grass is used to cure grass. Common grass species include ryegrass, Bahia grass, rattan grass and clover.