There are several reasons why grapes appear to be large and small:
Loss of fertilizer and water management, excessive application of nitrogen fertilizer, less watering; unreasonable pruning, resulting in uneven tree strength; unreasonable fertilization, excessive use of chemical fertilizers, neglecting the application of organic fertilizers and medium and trace element fertilizers, flowers The amount of pre-dressing fertilizer is unreasonable; the flowering period is early in the period of vines, and the leaves are less early; the flowering period is dense and dense, and the amount of branches is too large, resulting in poor ventilation and light transmission during flowering, resulting in abortion at flowering stage, low fruit setting rate, and ear Loose and scattered.
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