What are the benefits of deep ploughing?

Deep ploughing in winter can effectively protect flowers and trees and lay a good foundation for their growth in the coming year.

The benefits of winter ploughing garden soil are as follows:

1, deep ploughing in winter can improve soil structure. During the growing period, flowers will be frequently operated, such as spraying, pruning, fertilization, intertillage weeding and so on. It destroyed the aggregate structure of soil, made the soil form a hardened layer, and the permeability was greatly reduced. Through deep ploughing, not only can the hardening layer be broken, the soil gap be increased, but also the soil can be further matured, the organic matter in the soil can be differentiated, and the soil fertility can be effectively improved.

2. Deep ploughing garden soil in winter can also improve the cold resistance of flowers and trees. Deep ploughing can increase the living soil layer, create good water, fertilizer, air and heat conditions for the root system, make the root system take root deeply and enhance the tree potential. At the same time, deep tillage can cut off a part of fibrous roots, promote the germination of new roots and regenerate roots. Burying farmyard manure after deep ploughing can protect flowers and trees from overwintering.

Deep ploughing can kill many pests of flowers and trees. Many flower and tree pests overwinter in the soil in winter, some are directly killed by machines and tools when they are deeply ploughed, some are turned to the surface to freeze to death, or eaten by natural enemies. In addition, some flower and tree pests overwinter in fallen leaves, dead branches and weeds, and can turn into deep soil when they are deeply turned over. The method of deep turning is: turn around the trunk from shallow to deep, turn the top soil to the bottom and turn the bottom soil to the top. The big clods turned up can't be broken for the time being.