When planting citrus, grafting and seedling raising can be carried out. Choose areas with fertile soil and good drainage to plant citrus trees. When planting, dig a deep pit, fill it with compound fertilizer and topsoil, and water it according to the firmness of the land. In the process of growth, we should trim the branches and leaves in time, and cut off the weaker and locally dense branches and leaves. It is necessary to turn over the soil frequently to increase the air permeability of the soil and apply fertilizer according to different growth stages. Next, let's take a look at the cultivation techniques and management of citrus.

I. Planting techniques

1. Grafting seedling

One-bud abdominal grafting method can be adopted, and the scion can be attached to the rootstock and wrapped with plastic film. After the grafted seedling survives, the rootstock can be cut twice when it germinates in spring.

Step 2 Choose a garden to plant.

Choose a lot of citrus, with fertile soil, good drainage and convenient irrigation. Proper soil preparation, when planting, dig a tree pit with a width of about 0.8m and a depth of about 0.7m, fill it with base fertilizers such as compound fertilizer, mix the topsoil, put the seedlings in and water them.

Second, the management technology

1. Soil management

The soil for planting citrus should be breathable and deep, so that the roots of citrus can grow better. It is necessary to avoid planting citrus in low-lying plots at ordinary times, and deepen the plots regularly, which can remove weeds, increase soil permeability and drainage, and prevent soil hardening. In the process of deep tillage, organic fertilizer can also be applied to improve the soil, which plays a very good role in promoting the growth of citrus.

Trim and cut leaves.

For young trees, you can cut them lightly, and dry and moth-eaten branches should be cut off. Usually in spring and autumn, pruning weak branches and dense overlapping branches helps to improve the transparency of the whole plant. Proper core removal in summer can preserve the nutrients of trees.

3. Water and fertilizer management

Frequent ploughing can increase the air permeability of soil, and weeding can save nutrients. Before germination in spring, human manure, cake fertilizer and pig manure can be applied. Nitrogen, phosphorus and potassium fertilizer were mainly applied in July, and post-harvest fertilizer 10- 1 1 was applied in June. Usually, citrus trees can be fertilized 3-4 times a year, and microbial fertilizers can be properly used to decompose substances in the soil. Proper watering after each fertilization can promote the absorption of nutrients. Fertilizer can be microbial fertilizer, which can decompose toxic substances in soil.

4. Pest control

In the process of planting, orchard diseases and insect pests should be controlled. Canker, anthracnose and red spider are all common pests and diseases. Chemical agents can be used for full crown spraying to spray pests and diseases; Physical methods can be used to trap and kill pests, such as using purple light and stick insects. Prune the branches of fruit trees, clear the garden in winter, prevent diseases and overwinter, and protect the growth of citrus in the coming year.