Autumn vegetables, especially autumn-delayed vegetables, are prone to calcium deficiency. Lin'an City Bureau of Agriculture experts recommend that pay attention to calcium, less application of chlorinated fertilizer.
The fall of the low temperature in autumn will cause the roots of vegetables to age gradually, which will affect the effective absorption of fertilizers by crops. At present, the late autumn vegetables are in a period of vigorous growth. Special attention should be paid to the supplementation of fertilizers, especially calcium supplements.
If the new parts of your home's vegetables, such as the buds and root hairs, have become stagnant and atrophied, the new leaves have become sticky, the new leaves have been growing in focus and are incomplete, and the top of the fruit has been sunken and dark brown in color. This is probably due to soil. The lack of calcium, because the soil itself is less calcium content; and high salt content, inhibit root absorption of water and nutrients. In addition, soil drought in autumn and winter will increase the concentration of soil solution and reduce water absorption in the roots, thus inhibiting the absorption of calcium.
The fertilization of vegetables in autumn and winter should pay attention to science and should control the amount of fertilizer. It is not appropriate to use too much fertilizer at one time, especially with chlorinated fertilizers such as ammonium chloride and potassium chloride, and timely irrigation to prevent soil drought. At the same time, the leaves were sprayed with 0.3% to 0.5% calcium nitrate, once for 7 days, and sprayed 2 to 3 times. Tomatoes should be sprayed on the 2 or 3 leaves of the inflorescence when flowering. Chinese cabbage can be sprayed when it enters the ball stage.
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