First, soil, fertilizer and water management: Lightly cultivating the soil within the canopy drip line, and other suitable deep plunge, so that the whole garden soil loose, breathable. For fertilization, the annual fertilization amount is generally 1 kg for pure nitrogen, 0.5 kg for pure phosphorus, and 1 kg for pure potassium per 100 kg of pear fruit. That is, 20-30 kg of high-quality farmyard fertilizer per plant, 0.25-0.5 kg of phosphate fertilizer and 0.5 kg of potassium fertilizer. The anteroposterior line is to open a fertilization ditch on both sides of the canopy dripping line. The ditch is 40 centimeters deep and 40 centimeters wide. Mix the fertilizer with the surface soil and apply it to the soil. Moisture management, focusing on doing a good job of drought relief. The tree tray is recommended to be covered with weeds, crop manuscripts, etc. The thickness is about 10 cm, and the surface is compacted with fine soil. The neck of the tree is opened when covered. Second, keep the leaf measures: 1. After the fruit is harvested, the nutrient solution shall be sprayed in foliar in time, ie, 1 g of 2,4-D to 50 kg of water, plus 0.3% of urea and 0.3% of potassium dihydrogen phosphate. Every 10-15 days, 2 or 3 times in a row. 2. Do a good job of prevention and control of pests and diseases. Prevention and control of pests and diseases should be based on prevention. Comprehensive prevention and control can receive good results. Pear leaf spot disease, pear leaf spot disease, gray leaf spot disease, rust disease, black spot disease and other pests can cause defoliation. Drug control optional 70% thiophanate-methyl WP 800-1000 times or 70% WP (manganese) potassium WP 600 times spray. Only one of these drugs is selected at a time and used interchangeably. Spray once every 10-15 days, continuous use 2-3 times. Insect pests, mainly locusts, pears, crickets, beetles. Can install frequency-vibration insecticidal lamp, convenient place for power supply, can install 100-200 watts of electric light, put a big box from the bulb 40 centimeters, the box is filled with the right amount of water and put a small amount of oil (vegetable or kerosene) and Insecticides are turned on at night to light traps. Drug control can also be carried out.
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Postharvest management of pears
After pears are harvested, management of pear trees should be strengthened to lay a foundation for the next year's high yield. The management technology points are introduced as follows: