To prevent the early fall leaves of fruit trees introduced:
How to remedy the problem in winter and spring? Before the end of September, the leaves of apple trees will basically fall. The accumulation of organic nutrients in early deciduous fruit trees will be significantly reduced, affecting the later differentiation of flower buds and flowering and fruit setting in the next year. It will have an adverse effect on the overwintering of fruit trees, rot and early leaves. The disease will also increase. In order to reduce losses, winter and spring should focus on some remedial work.
The earlier the use of basal fertilizer, the sooner the better the basal fertilizer is, the better the manure is. Specific fertilization amount: In the fruit stage, the fruit tree will be applied to 3,000 kg of high-quality farmyard fertilizer per 667 square meters, 100 kg of superphosphate, 50 to 75 kg of ternary compound fertilizer, and the young tree and the initial result tree will be reduced.
Timely clearance of clear orchard leaves, diseased fruit, weeds and broken branches in the orchard are removed, burned or buried deeply. After the garden was cleared, the whole tree was sprayed with a tree to conduct disinfection and sterilization.
The white deciduous trees on the trunk of the trees are low in nutrients stored in the trees, and are prone to frost damage. After coating, they can reduce the occurrence of sunburn and freezing damage, and can kill some of the diseases and insects that overwinter in the bark joints. The main material of the whitening agent is lime sulfur, auxiliary materials are lime, salt and lard. The ratios are: 1 kg of lime sulfur, 3 kg of lime, 0.5 kg of salt, 0.25 kg of hot lard and 15 kg of water. Brush the trunk after stirring the above materials. Saplings can also spray antifreeze on the tree 1 or 2 times at the beginning of winter.
Scientific pruning of early deciduous trees is generally pruned after dormancy and before winter.
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