Fruit tree science fertilization is the key to fertility orchard fertility, promote soil loosening, maintain good soil aeration, improve soil ecological and environmental conditions, supplement and regulate soil nutrition, promote robust and balanced growth of fruit trees, and promote the continuous high yield, high quality and high efficiency of fruit trees. Measures. However, in production practice, due to the fact that fruit growers do not apply science to fertilization, it not only causes waste of money, but also reduces fruit production and quality, and even damages the fruit tree. The type of fertilizer applied to fruit trees should be determined based on the fertility of the soil and the need to adapt to the growth of fruit trees. Fertile soil conditions are the basis for the robust growth of fruit trees. The criterion for measuring soil fertility is the level of soil organic matter. Soil organic matter content is high, can maintain soil dredge, good ventilation, water retention and fertility enhancement, and provide a good survival, reproduction of environmental conditions for beneficial bacteria, thus promoting healthy root growth. The rapid growth of young fruit trees requires more nitrogen; the growth, flowering, fruiting, flower bud formation, and fruit quality of adult fruit trees require a balance of nitrogen, phosphorus, and potassium, as well as a full range of trace elements. Therefore, in addition to increasing nitrogen fertilizer in young fruit trees, fertilization of mature fruit trees should increase soil organic matter as much as possible, maintain a reasonable ratio of nitrogen, phosphorus, and potassium, as well as comprehensive trace elements. However, since the early 1980s, most orchards have become the culprit for the simplification of fertilizers. It has become a customary trend to increase the use of high-level chemical fertilizers. The concept of high input and high output of fertilizers is deeply rooted in people's minds, resulting in higher and higher yields of fruit trees. The quality is getting worse. For more than 30 years, the orchards have been using chemical fertilizers for a long time. First, the soil fertility has been destroyed. Due to the lack of organic matter in the soil, soil compaction, poor ventilation, loss of living environment for beneficial bacteria, and breeding of harmful pathogens not only affect the robustness of roots. Growth, but also cause serious root diseases; Second, serious physiological diseases, due to depletion of soil, trace elements, causing apple lobular disease, iron deficiency disease, bitter pit disease, red spots, black spots, molting, shrinking fruit disease, etc. Physiological diseases generally occur; the third is the decline in fruit quality. Due to the long-term use of chemical fertilizer alone, soil organic matter is scarce and nutrients are single, resulting in a general decline in fruit quality. Fourth, shoots are long and prone to annual and large-scale results. Long-term application of high-level chemical fertilizers generally focuses on nitrogen fertilizer, resulting in persistent and slender shoots. Apple is not prone to circumcision, and it is a lesson that nitrogen fertilizer is high and shoots are persistent. Therefore, the current farmers must update their concepts, change their fertilization awareness, and go beyond the mistakes of chemical fertilizers, turning to fermented and deconstructed farmyard fertilizers or high-quality commodity organic fertilizers, and adopting organic fertilizer as the mainstay, and chemical fertilizers as the principle of supplementary scientific fertilization. Disposable Standard Surgical Gown
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