1. High concentrations of fertilizer cannot be applied within 15 to 20 days after harvest. Within 15 to 20 days after harvest, the tree's vitality is restored. When the tree's vitality is not restored, the application of high-concentration fertilizers causes the tree's normal life activities to be destroyed, and physiological defoliation is easily generated.
2. The pear fruit must not be chemically weeded within 15 to 20 days after the restoration of the tree's vital energy before it is recovered. In particular, weeds must not be sprayed with glyphosate. After the weeds are sprayed with glyphosate, they are formed in order to survive. The situation of pears competing for water; secondly, the weeds were sprayed by glyphosate and withered to increase the surface area of ​​the pear orchard exposed to sunlight, which affected the moisture absorption of pear trees, resulting in physiological water loss and defoliation.
3. The pear fruit should be sprayed with high-concentration pesticides at high temperature at noon within 15 to 20 days after harvest to avoid scalding.
4. Post-harvest pear farmers can cover under the pear tree with grass, green rice straw and other straw.
5. The pear fruit was sprayed with foliar nutrient solution in time, ie, 1 gram of 2.4-D to 50 kg of water, plus 0.3% of urea and 0.3% of potassium dihydrogen phosphate. Spray once every 10~15 days, spray 2~3 times continuously. Http://Content/b4113be1-d706-439d-8e85-bbcec3e0bd80?cType=2
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