Nutritional supply: Apply organic fertilizer early and combine with topdressing fertilizer in a timely manner. It is required to carry out immediately after topdressing, and it should be poured thoroughly to meet the water requirement for fruit tree growth and blooming. At the same time, the tree trays are well-organized, requiring the tree trays to be flattened so as to ensure the safety of the trees.

Pull branch pruning: It is based on the transformation of the tree last winter to carry out fine shearing, and it is completed before the bud enlargement period. The suppression and promotion of the mobs can still be carried out at this time, but they must be completed before flowering in order to grow strong. For prosperous fruit trees, the use of ring cutting support "Huawang 2" to promote the control technology, can successfully replace the girdling and chemical hormone killing, and promote new shoots mature, effectively promote flower bud differentiation, flower formation and fruit set. Trim the mouth in time to rub "wound anti-corrosion film" to protect the wound from healing, disinfection and sterilization, to prevent induced decay and other diseases.

Antifreeze during flowering: In recent years, most of northern fruit areas in northern China have suffered severe cold currents in April each year. They are extremely unfavorable to pears, peaches, apricots, and apple flower buds. During this period, they use trunks and branches to create a tree trunk. Membrane substances can protect flower buds from frost damage, disinfection and frost protection. Before the advent of the cold weather, fully implement various measures, such as trunking and whitening, to reduce the degree of damage and loss.

Artificial pollination: not only can increase the fruit setting rate, but also have a great influence on the shape, size, and quality of fruit. This work should be paid attention to. There are many methods of artificial pollination, the most commonly used is the artificial point, pollen every 10 grams with a kilogram, can spray half an acre orchard, tool optional hand-held electric sprayer.

Thinning and fruit thinning: Flowering requires a large amount of nutrients, and the more flowering, the more nutrients the tree consumes. Sparse and fruit thinning can reduce the nutrient loss of the tree to a minimum, and it is one of the most effective key technologies for regulating reproductive growth and vegetative growth, so that the orchard can achieve high quality and high yield year after year.

Pest control: After the temperature recovers, pests and diseases are about to start. April is a critical period for the prevention and control of pests and diseases. It has a significant effect on alleviating pests and diseases throughout the year. For different pests and diseases, prevention and control measures can be taken. Adding a suitable amount of “new high fat film” in the liquid medicine for chemical control can greatly increase the use of active ingredients of pesticides, achieve the best control effect, and save pesticides.

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