The cherry is mostly picked from late May to late June. At this time, it is during the busy season. The management of fruit picking in the summer is easily overlooked. There are also some misunderstandings in the fertilization management of summer cherry, which needs to be corrected and improved.
Misunderstanding 1, no need to fertilize the big cherry after picking
Usually cherry has a special emphasis on fertilization in spring and autumn. It is believed that fertilizing in spring can promote flower stability, while fertilization in autumn can guarantee nutrient reserve of big cherry over winter. In fact, big cherry summer fertilization is particularly important, this time is an important period for cherry flower bud differentiation and pest control, summer fertilization can quickly restore tree vigor, promote flower bud differentiation, increase tree storage nutrients, and effectively prevent pests and diseases, is to achieve the cherry year after year The key to high yield and stable production. Therefore, after the cherries are picked, they should be topdressed immediately, which can promptly supplement the large amount of nutrients consumed by the tree growth results, so as to meet the needs of nutrients in flower bud formation and later growth stages.
Misunderstanding 2, a large number of nitrogen fertilizer after cherry fruit picking
Many fruit farmers have mistakenly thought that because of the quick effect of nitrogen fertilizers, they can quickly restore their tree vigor. Therefore, a lot of nitrogen fertilizer should be applied after picking. However, nitrogen fertilizer is a double-edged sword, especially in the summer, tree metabolism is strong, excessive application of nitrogen fertilizer will cause the tree to grow mad, spring shoots can not stop in time, not suitable for the formation of flower buds. In fact, it is better to apply a small amount of available nitrogen after fruit harvesting. Pay attention to the application of phosphate fertilizer. It is recommended that after harvesting the fruit, 1.5 kg of urea and 1 kg of diammonium phosphate should be used for each kilogram of fruit, and trees with less tree vigor may not be used or only diammonium phosphate.
Misunderstanding 3, ineffective trees also need to make nutrients
Many growers mistakenly believe that fruit trees that do not produce fruit in younger crops are due to lack of nutrients and therefore have to fertilize them with the resulting trees in summer. In fact, the young fruit trees are mostly caused by unbalanced nutrition. If fertilizers continue to be applied in summer, they will continue to exacerbate the imbalance between vegetative growth and reproductive growth, which is not conducive to the formation of flower buds. Therefore, fertilization in summer should be based on tree vigor. The key to controlling nutrient balance based on tree-trends.
Misunderstanding 4, the summer application of fertilization can be less watering
At present, many orchards have already used drip irrigation systems, and the use of water-soluble quick-acting fertilizers is increasing, which facilitates production management. However, the use of flushing water-soluble fertilizer is not equivalent to reducing the amount of water. In June, the amount of precipitation is not enough, the temperature is high, and the amount of soil moisture evaporates. If you do not add water in a timely manner after fertilization, it is easy to cause damage. Therefore, you must pay special attention to water management after fertilization.
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