In the Spring, the germination, flowering and growth of new pears consume a lot of nutrients. Therefore, it is necessary to apply the pre-flowering fertilizer before the germination of the pear trees to make up for the shortage of nutrients in the tree and meet the demand for nutrients in the spring pear trees. The fertilizer before application is mainly composed of quick-acting nitrogen fertilizer, generally 20 kg of urea per acre, 15 kg of potassium sulfate, 40 kg of superphosphate, and 2000 kg of livestock manure. The top dressing time is applied at the latest in early March in front of the flowering leaves. The organic fertilizer should be applied in advance 10 to 15 days before the germination. The deep strips of 40 to 60 cm deep in the periphery of the canopy are the most. Good, topdressing should be combined with watering and at the same time. Finally, the foliar fertilizer is sprayed, and the growth of the new shoots begins to accelerate after the flower is dropped. After the leaf color turns green, the foliar spray fertilizer can be used with 0.2% to 0.3% potassium dihydrogen phosphate or 0.3% to 0.5% urea. Spray evenly, preferably on the back of the leaf, which is good for absorption and can be combined with spraying.
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