Orchard winter fertilizer management
Fertilizing the tree from soil fertilization and root fertilization:
1. Fertilizer: After a period of fruit picking in the orchard, temperature and ground temperature are still high, which is conducive to the growth and development of fruit trees. The root system enters the third peak of growth. The nutrients produced by the foliage are directed to roots, stems and branches. Transfer, accumulation. Spraying foliar fertilizer can quickly supplement the nutrient that the tree consumes in large amounts as a result, and restores tree vigor as soon as possible. Apple spray foliar fertilizer, available 0.3% to 0.8% of urine or 0.2% to 0.3% of potassium dihydrogen phosphate solution + new high fat film, spray once every 10 to 15 days, spraying time to no wind, air Humidity weather is better, and avoid around noon.
2. Early application of basal fertilizer: After the early and mid-maturing varieties are harvested, the late-maturing varieties are applied before fruit harvesting. After the application, the green leaves on the trees can be kept for 1 to 2 months. Fertilizers are mainly organic fertilizers, with a small amount of chemical fertilizers. Organic fertilizer dosage: low-yield orchard uses kilograms of fruit fat, high-yield and high-yield orchards use kilograms of 1.5 to 2 pounds of fertilizer. Before organic fertilizer is applied, it must be decomposed and fermented to prevent burning of raw manure. Fertilizers require nitrogen, phosphorus, and potassium fertilizers, and targeted trace element fertilizers, such as high-concentration compound fertilizers.
Fruit trees susceptible to freezing injury should pay attention to cold protection:
1. Pour frozen frozen water before freezing: It can increase the moisture content of soil and increase the temperature in winter. Watering is also one of the methods to prevent late spring and frost.
2. Protective agent: The dry climate in winter should be good for soil insulation and moisturizing work. Normally, it should be covered with plastic film to protect the ground temperature and the general garden general spray tree protection tree to protect the tree for safe winter.
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