1. Pruning: Pruning of branches of pear trees is continued to regulate growth, which is conducive to ventilation and light transmission.
2. Apply fertilizer to pear tree before flowering: Apply fertilizer immediately before the flower of pear tree, quickly increase the nutrient level of the tree body, promote the tree vigor, and improve the stress resistance of the flower bud, so that the new shoots and flower buds can be pumped. robust. Pollen activity, pollination and fertilization, high fruit set rate. The specific approach is as follows:
Before the flower buds of the pear tree sprout, generally 5-10 days before and after the beginning of spring, before flowering, the fertilizer is mainly organic fertilizer, phosphorus and potash fertilizer, and the result tree more than 5 years old. 20 kg, 1 kg of cooked peanuts, 1.2-2 kg of potassium dihydrogen phosphate. Under the canopy, dig 6-8 radiation channels 15-20 cm deep, 30-40 cm wide and 80-100 cm long. After the fertilizer is fully mixed, mix it with the excavated soil and fill it in the ditch. However, after fertilization and drought, it must be 60-80 kilograms of fresh water per tree to promote the conversion of fertilizers, supply roots for absorption and utilization, and increase the absorption and utilization of fertilizers. In addition, at the flower bud stage, spray 2-3 times with 0.1% magnesium sulfate, 0.1% borax, 0.3% urea, and 0.5% potassium dihydrogen phosphate mixture.
3. Reasonable Intercropping: It is strictly forbidden to plant high pole crops in pear gardens. Only green manure and dwarf crops can be grown.
4, Baohua Baoguo: The fundamental measure for the preservation of fruit is to strengthen the management of soil, fertilizer, water, and pest control. In addition can take the flower spray 0.2% -0.4% borax or 800 times vinegar semen, put the bees, hanging twigs, artificial pollination, shake the trees in the rain after the fog, Xiehua Wangshu, Wang branch after the ring cut and other measures.
5, pest control: before flowering and after Xiehua with 800 times of freshwater, 600 times Xiansheng, 25% carbendazim 300 times, powder rust 1500 times pear rust, pear black disease, pear black Heart disease, pear brown spot, and flower rot were treated for 2-3 times in a row and once every 10-15 days. Use 30% of trichlorfon 800 times.
Chemical Materials,Sodium Benzoate,Sodium Diacetate,Potassium Sorbate
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