At present, orange farmers are most concerned about the fall shoots. Robust and neat autumn shoots are not only a weapon to overcome large and small years, but also a guarantee for high and stable yields of fruit trees, and they are also beneficial to the life of the tree. But in production, fruit growers often encounter problems such as slow, uneven, or even no-blooming. What is the problem? How to solve it?
For the immature summer shoots, the topping, twigs, shorting, fertilization and other methods should be used to speed up the maturity of the summer shoots, and the autumn shoots should be harvested in time.
Picking: For the summer shoots of the mean, pick the tops to weaken the growth potential and accelerate the maturity.
Loose branches: Loose branches that are growing vigorously in summer, such as long branches and overlord branches. Grab the branches from the base and push to the top to make the young leaves and top buds of the summer shoots fall off, which is conducive to the fall shoots.
Cut short: Weak summer shoots, such as diseased and insect shoots, residual summer shoots, dense shoots, should be short cut or erased, and autumn shoots should be placed without leaving piles.
Fertilization: For treated immature summer shoots, small fruit plants, you can spray high potassium foliar fertilizer; for large fruit or normal plants, spray plant peptides or alginic acid or organic carbon to accelerate the maturity of branches and leaves. Pump out autumn shoots as soon as possible.
For those who are difficult to extract the tops due to the weak tree, we should save the tree as the prerequisite to help them quickly restore the tree vigor, and then consider releasing the tops.
Excessive circumcision: Coat the circumcision wound with methosulfurine or prochloraz for sterilization, and then seal it with a film or electrical tape to avoid light. If it is particularly serious, consider bridging.
Drought and waterlogging: Strengthen water management, maintain roots and protect roots, and improve resistance to stress.
Pest factors: After controlling pests, adjust and restore tree vigor as soon as possible through top dressing.
For those with a large amount of fruit, you can help to release the shoots by thinning the fruit, preserving leaves, pruning, and top dressing.
Fruit thinning: timely remove top fruit, deformed fruit, diseased fruit, super large fruit, super small fruit and other fruits of low economic value to reduce the burden on the tree.
Leaf preservation: Keep the existing leaves through rational use of foliar fertilizers, prevent a large amount of yellowing and shedding of leaves, and ensure that the organic nutrients produced by photosynthesis of the tree are not reduced.
Pruning: Choose 20-30 branches that are relatively strong and distributed in different positions for each tree. Cut off the top 3-5 cm to form a cut opening to promote autumn shoots. At the same time, cut off the ineffective branches such as shade branches and diseased branches. Can be combined with fruit thinning simultaneously.
Top dressing: Root application of biological stimulant, and high-nitrogen water fertilizer can be added. When the new shoots come out 5 cm, the leaves are sprayed with high-nitrogen and high-potassium foliar fertilizer and the roots are supplemented with compound fertilizer to promote the growth of the new shoots.
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