What about calcium deficiency in vegetables?

Once vegetables are deficient in calcium and metabolism is blocked, various calcium deficiency symptoms such as tomato umbilical rot and Chinese cabbage dry heart disease will occur. The general symptoms of calcium deficiency in vegetables are new parts of plants, such as buds of root buds and root hairs, atrophy and death, new leaves adhesion; new leaves often open, and the incompleteness is incomplete; the top of the fruit is prone to depression, dark brown and necrosis.

The prevention and control measures for calcium deficiency include: to control the amount of fertilizer, it is not advisable to use too much fertilizer at one time, especially potassium chloride; to irrigate in time to prevent soil drought; to spray calcium on the foliar surface, potassium chloride and calcium nitrate can be used as a spray. Fertilizer, concentration 0.3% ~ 0.5%, usually sprayed once every 7 days, even spray 2~3 times visible. Tomato should be sprayed in the flowering, 2~3 leaves above and below the inflorescence, Chinese cabbage begins to enter the ball-forming period to spray calcium, and in the process of calcium injection, the addition of auxin substances, such as naphthaleneacetic acid, can promote the absorption of calcium.

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