Annual fertilization 4 to 5 times, namely: Spring shoot fertilizer, Xiehua small fruit fertilizer, autumn shoot fertilizer, flower bud differentiation fertilizer and fruit picking (post) fertilizer. 1. Spring shoot fertilizer: 15 to 20 days before spring shoot sprouting (normally in February), mainly available nitrogen fertilizer; but strong tree and early fruit trees should be “see bud fertilizationâ€, and the amount of visual flower will be affirmed again. Fertilizer amount, in order to grasp the length of spring tip conducive to fruit preservation. At the same time, some foliar fertilizers can be sprayed at the flower bud stage, such as spraying O.15% borax with O.3% magnesium sulfate, or O.3% potassium dihydrogen phosphate or nucleotides. 2, Xiehua small fruit fertilizer: start Xiehua Shi Shi, mainly to compound fertilizer, depending on the color of leaves and fruit may be. However, we must pay attention to master the initiation of summer shoots. The nutrients needed for young shoots of summer shoots are usually accepted as top-dressing supplements. 3. Autumn shoot fertilizer: It is the key point of fertilization for one year, and should account for 30-40% of the total amount of fertilizer applied in the whole year. The quick-acting nitrogen fertilizer is mainly used for the decomposing of inorganic fertilizer; it should be applied 10 to 20 days before the autumn shoot. 4. Flower Bud Differentiation Fertilizer: As usual, before flower bud differentiation in November, inorganic fertilizers, compound fertilizers or buried fertilizers are used. 5. Before and after picking fruit: The old trees, weak trees, and trees with many fruit trees, and the trees left after the harvest can be used to apply quick-acting fertilizers before or after fruit harvesting. However, young trees and fruit trees can be avoided. Shi. Disclaimer: Some articles in this website have been transferred from the Internet. If you are involved in third party legal rights, please inform this website. phone
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