2. Straw, crop straws, green manure or plastic film are covered on the fruit tree tray, the covering thickness is 10~ 15cm, and the distance from the trunk is 10cm, which is beneficial to keep the soil loose and moist and promote the bud growth of branches.
3. After the first bud of the seedling germinates, dilute decomposed human excrement and urine, or decomposed bran water, or biogas slurry water can be applied, and fertilizer can also be applied. Generally, commercial chemical fertilizers should not be sprayed before the first bud of seedlings germinates to mature buds, so as to avoid fertilizer damage.
4. Take off the buds of young trees in time to prevent flowering from consuming too much nutrients, but the buds with leaves must only take off the buds and leave the leaves. Jiangxi Shiren Fruit Industry Ganping Citrus Seedling and Aiyuan No.42 Citrus Seedling
5. The biological characteristics of citrus fruit trees are one of the important bases for modeling. Correlation between branches and leaves and root growth, apical dominance, branching angle and terminal bud self-shearing are important conditions for pruning. Young trees are characterized by strong growth potential, mainly by expanding crown, cultivating backbone branches and increasing crown branches and leaves, and should be trimmed appropriately on the basis of plastic surgery.
6. The main work of pest control of young citrus trees is to protect the shoots, and do a good job in the prevention and control of pests such as leaf miner, weevil, whitefly aphid, red spider and other diseases such as anthracnose, scab and canker, focusing on the prevention and control of leaf miner. Generally, autumn shoots are seriously damaged, followed by summer shoots, and spring shoots are basically not damaged.