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柑桔过旺常造成适龄不开花,或花而不实,产量低。因此,必须采取综合措施适时控旺,提高产量。 1.控氮增磷钾。在枝梢生长季节增施磷钾肥,适当减少氮肥用量,促进桔树平衡生长。可在花芽分化时喷施0.2％尿素+0.2％磷酸二氢钾液。 2.断根施重肥。9～10月,对一般旺树在树冠两方断根,特旺树在树冠四方断根。沿树冠滴水线稍近,挖33～66厘米宽、45～55厘米深的半圆形沟,斩断所见到的侧根,然后在
Citrus is too often caused by age is not flowering, or flowers and not real, low yield. Therefore, comprehensive measures must be taken to control the situation in time and increase the output. 1. Controlling nitrogen increased potassium. Phosphorus and potassium fertilizers are added during the shoot growth season, the amount of nitrogen fertilizer should be appropriately reduced, and the balanced growth of orange trees should be promoted. Flower bud differentiation can be sprayed 0.2% urea + 0.2% potassium dihydrogen phosphate solution. 2. Broken weight heavy fertilizer. 9 ~ October, the general Wang tree in the canopy on both sides of the root, the special tree branches in the crown off. Drip line along the crown near, dug 33 ~ 66 cm wide, 45 ~ 55 cm deep semicircular groove, cut off the lateral roots seen, and then at