Why does the black grapes have soft capsules after they ripen?
A: This phenomenon is mainly due to the large amount of fruit left behind, nutrition can not keep up, the lack of boron, calcium and other trace elements and the occurrence of diseases and other causes, which requires timely fruit thinning, control of fruiting, and leaving enough nutrition vines . To guarantee the supply of water and fertilizer, when the land of the vineyard is gravel, it is necessary to make nutritional supplements for a long period of time. It is recommended that it be supplemented once every ten days. With the addition of boron and calcium fertilizers, foliar fertilizers are sprayed from the spring. Water jar disease and white rot disease will also cause the fruit to be soft and poorly colored, and it needs to be prevented and treated as soon as possible.
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