1, pruning. The plastic branches of the pear tree can be adjusted for growth, which is conducive to ventilation and light transmission.
2. Apply fertilizer before flowering. Fertilizer before the application of flowers can quickly increase tree nutrients, promote tree vigor, make its new shoots and buds robust, strong pollen vigor, pollination and fertilization, high fruit set rate. Before sprouting, flower buds are mainly organic fertilizer, phosphorus and potassium. Fruit trees aged over 5 years are used to produce 15-20 kg of decomposed livestock and poultry manure per plant, 1 kg of decomposed crops and 1 kg of potassium dihydrogen phosphate. -2 kg. Dig 6-8 deep 15-20 cm radial channels under the canopy, mix the fertilizer and mix it with the excavated soil and fill it back into the ditch. During bud stage, the leaves were sprayed with 2-3 times 0.1% sulfuric acid, 0.1% borax, 0.3% urea, 0.5% potassium dihydrogen phosphate mixture.
3, preserved flowers. Can take flowering spray 0.2-0.4% borax or 800 times vinegar semen, put bees, hanging twigs, artificial pollination, shake the trees in the rain after the rain, Xiehua Wangshu, Wang branch after the ring cut and other measures.
4, pest control. Before and after flowering, 800 times solution is used for big students, 600 times for Xiansheng, 300 times for 25% carbendazim, and 1500 times for Triadimem for pear rust, pear black spot, pear black heart disease, pear brown spot, and flower. Prevention and control of rot, continuous 2-3 times, every 10-15 days. With 30% of the trichlorfon 800 times, 2.5% enemy killed 3000 times the liquid borer, pear caterpillars, pear stem bee to control.
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