The management level of apple expansion and maturity cannot be low:
Ensure adequate nutrients
When the apple tree appears uneven, yellow leaves, leaf color is not correct, yellow leaves and leaves are burnt, the nutrient supply of the fruit trees should be strengthened immediately. It can be sprayed once every 10-15 days with quick supplement-boron molybdenum magnesium zinc calcium amino acid nutrient solution or potassium fulvic acid. In addition, at this time, the mid-late maturing varieties are in the period of fruit expansion, and the trees with more fruit are to be topdressed to promote the rapid expansion of the fruit. Topdressing should be based on phosphorus and potassium fertilizers, and high potassium and low nitrogen type fruit tree fertilizer or potassium fulvic acid fertilizer can be applied to each adult fruit tree.
Scientific autumn scissors
The focus of the autumn fruit tree pruning should be placed on the work of clearing the scorpion, and the long branches of the fruit tree stalks and the strips at the kerfs can be cut off. The fruitless branches that affect the ventilation and light transmission of the tree should also be removed or retracted; in addition, the ineffective branches of the middle and lower parts of the canopy should be removed.
Mid-late ripe varieties
For varieties that are easy to harvest before harvesting, spraying should be carried out in September to prevent fruit drop: the choice of naphthalene acetic acid spray wet fruit handle is the main, should be carried out 1-2 times. This method can not only shake the fruit, but also promote fruit coloring.
Pest control should be strengthened
At present, it is often encountered in rainy days, and prevention and treatment of early defoliation has become the current focus. Spraying with quick-acting pesticides should be used to slow the infection rate of the bacteria. After spraying the quick-acting pesticides, as long as the medicine can be dried and absorbed on the leaves, it can have a good bactericidal effect. The efficacy of this kind of medicine is about 7 days. After the sunny day, long-acting medicines should be sprayed, such as non-polluting pesticides such as bacteria and polymycin.
Weeding and moth to keep up
In autumn, there is more rain. If it rains, it should be drained immediately. The clay orchard should pay more attention to the soil to prevent the roots from being rooted. Weeding in the orchard with many weeds, it is recommended to cut it down and press it. It can also be weeded with a chemical herbicide, and it can be used for weeding with glyphosate or with no trace of help. It has good effect.
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