When is the best calcium supplement in fruit trees?

Timely calcium supplementation for fruit trees can effectively prevent the growth of young leaves of fruit trees from weakening, and the leaves lose green and yellow. The fruits have submerged spots and discolored, softened and bitter fruits, which can significantly improve fruit quality and yield.

The annual peak of calcium absorption in fruit trees is 3 times. The first time in 30 days after flowering, the second time in the fruit expansion period, about in July, the third time in about 30 days before fruit picking. Foliar spray is generally better. The spraying concentration of 99% calcium nitrate is generally 0.3% to 0.4%. Under normal circumstances, 400 catties of water per catty, mixed with pesticides or fungicides, sprayed after the fruit trees are sprayed, and the fruit coloring is better. Can not be used after, so as not to affect the coloring. The concentration of calcium amino acid such as galifax, calcium lactate and the like is generally 500 to 600 times. Spraying was started 20 days after flowering, and spraying 3 or more times each year during the peak period of calcium supplementation could promote flower bud differentiation of fruit trees, promote fruit coloring, and increase fruit sugar content, hardness, and storage stability. Chelating calcium is the best calcium supplement product, and the general spraying concentration is 2000 times. It can be used in every calcium demanding period and it works well. It is the first choice for orchards producing high-grade fruit.

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