How to manage sweet cherry in autumn and winter

rational fertilization

Fertilization can be carried out from September to November, but it is better to apply early in order to exert fertilizer efficiency in the current year and increase nutrient reserves before overwintering. In the selection of fertilizer to be based on farm manure, young trees Shi human manure 30 kg or manure 50 kg; results of tree Shi human manure 50 kg or manure 100 kg. In addition, pay attention to the application of nitrogen, phosphorus and potassium compound fertilizer or special fertilizer for fruit trees, 1 kg for small trees and 2 kg for big trees.

deep cultivation

In order to keep the soil loose, deep ploughing should be carried out between tree rows, usually to a depth of 20 cm. Deep ploughing can be properly cut off roots to play a role in the proliferation of new roots and promote tree growth. However, the thickness of the broken roots should be controlled within 0.5 cm in diameter, and the thick roots should be less injured or not injured.

Eliminate deciduous weeds

After the leaves fall, we should sweep away the fallen leaves in time, eradicate the weeds and burn them, or concentrate the fallen leaves and weeds in the fertilizer kang to make organic fertilizer, which not only increases the fertilizer source, but also eliminates diseases and insect pests.

control pests and diseases

After defoliation, the plants were sprayed once with 5 baume of a mixture of sulfur and rock to kill germs and some pests.

tree trunk whitewash

Before the leaves fall to the ground, in order to protect the trunk from freezing and prevent pests from laying eggs, the trunk can be painted white. The formulation of the whitening agent is: quicklime 1kg, water 5kg, salt 100g, vegetable oil 50g. First open quicklime, and then according to the proportion of salt, vegetable oil can be mixed.

winter irrigation

In order to maintain soil moisture and eliminate pests and diseases, irrigation should be carried out before the soil freezes. The amount of water should be large and the whole garden can be flooded.