1. Heavy application of fruit fertilizer: Before and after the establishment of the winter solstice (November), combined with soil expansion and expansion, heavy application of fruit fertilizer, in order to restore the tree as soon as possible, promote flower bud differentiation, and accumulate nutrients for the second year. When expanding the hole, each plant has 8-15 kg of bio-organic fertilizer, 0.5-1 kg of phosphate fertilizer and a proper amount of nitrogen fertilizer. According to the actual situation, the tree can be topdressed with 0.5% potassium dihydrogen phosphate and sprayed once. 0.2% boric acid to differentiate flower buds.
2, strong shoot fertilizer: 2-3 months to apply a quick-acting fertilizer, each plant applying urea and phosphate fertilizer 0.5-1 kg each, after the Spring shoots germination, at the same time 0.5% phosphorus dihydrogen potassium, 0.3% urea for root dressing (spray) to promote strong branches and flowers. In the first ten days and the middle of March, 0.3% urea and 0.5% potassium dihydrogen phosphate can be used separately.
3, stable fruit fertilizer: 4-5 months can be fertilized according to the growth situation of the tree, each plant separately applied compound fertilizer 1-1.5 kg, after mid-April with 0.5% potassium dihydrogen phosphate root dressing, Xie Hua, respectively Spray 5 ppm 24-D, 0.5% magnesium sulfate and 300 ppm anti-fallin.
4, strong fruit fertilizer: July-August fruit quickly expanded, fertilization should be based on organic fertilizer, quick-acting fertilizer. Each plant Shiruntian bio-organic fertilizer 2-4 kg, compound fertilizer 0.6-1 kg, old weak fruit trees plus urea half a catty. According to the tree trend, the amount of the results is increased as appropriate. When fertilizing, it is generally applied by open-opening ditch, with the canopy drip line as the midpoint, the ditch length of 0.5 m, the depth and width of each 0.15 m, each plant ditching 8-10, covering soil after fertilization, each ditching The position should be changed.
(Young Fu)
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