We, the farmers, must recognize the current and future direction of the development of pollution-free apples. We must focus on organic fertilizer. The principle of applying organic fertilizer is to increase the content of organic matter in the orchard soil. Second, it is a combination of organic fertilizer and inorganic fertilizer. To control nitrogen, phosphorus, potassium principle. Scientific timely full nutrition fertilization; Third, it is necessary to supplement the trace elements. (I) Establish a fertilization system based on organic fertilizers to promote the formation of soil pellet structure in orchards. After organic fertilizers are applied in the orchards, they can be converted into organic matter under the action of microorganisms, further forming special black mucous substances, humus. Humus can be combined with soil particles to make the loose soil particles cemented with each other. To form large and small pellets. Can enhance soil fertility, water retention capacity; thus receive fertilizer to divert water? With fertilizer and water for the purpose of saving water. (b) Supply fruit trees with various nutrients. Organic fertilizer contains all nutrients and contains various nutrients needed for the growth of fruit trees. In addition to the formation of humus in the conversion process of organic matter, another way is the mineralization process. The mineralization process can turn various nutrients that cannot be absorbed and utilized by fruit trees into organic matter. Such as nitrogen? phosphorus? Potassium? sulfur? calcium? magnesium? iron? boron? Zinc is released for fruit tree absorption. (c) Promote microbial activity. Organic matter is an indispensable source of energy for soil microbial activity. The application of organic fertilizer is conducive to the reproduction of microorganisms, and enhances the activity to promote the decomposition of organic matter and enrich soil nutrients. (d) help to overcome the deficiency of the disease. To increase photosynthesis, organic acids and carbon dioxide can be produced during organic matter decomposition, and organic acids can change the pH of the soil. (5) After the organic fertilizer is applied to the orchard, the structure of soil particles is improved, which enriches the nutrient content in the soil and thus promotes the absorption and utilization of fruit trees. The tree grows robustly and enhances its activity. Can reduce fertilizer? The use of pesticides to improve fruit quality and yield. Greatly enhanced the ability of the tree to resist adverse environments and pests, and the amount of fertilizers and pesticides used. Reducing environmental and fruit pollution, maintaining ecological balance, and producing pollution-free apples have a very important role. Surgery Table Mattress,Surgery Table Foaming Pad,Surgery Table Buckle Belt,General Surgery Accessories NINGBO TECHART MEDICAL EQUIPMENT CO.,LTD , https://www.techartmed.com