In the process of kiwifruit planting, whether or not the fertilization process is scientific is directly related to the amount of production and how to fertilize it. The reporter interviewed Li Longshan, a researcher at the College of Horticulture, Northwest Agriculture and Forestry University, and he discussed the principles that need to be mastered in the fertilization process for kiwifruit. Scientific guidance. Combination of organic fertilizer and inorganic fertilizer Organic fertilizer has full nutrients, long-term fertilizer effect and continuous fertilizer supply. It can increase soil organic matter content, activate root systems, promote absorption, and improve soil remediation. The content of active ingredients of inorganic fertilizers is high, and the efficiency of fertilizers starts quickly, but there is no effect of improving soils. The combination of the two is dominated by organic fertilizers, supplemented by inorganic fertilizers, and complement each other to increase efficiency. A large number of elements combined with trace elements For every 100 kilograms of kiwifruit fresh fruit, 2.2 to 2.8 kg of nitrogen, 0.18 to 0.22 kg of phosphorus, 2 to 2.3 kg of potassium, 3.0 to 3.5 kg of calcium, 0.38 kg of magnesium, 40.50 mg/kg of dry matter of boron, iron is not low. At 60 mg/kg dry matter, zinc was 15.18 mg/kg dry matter. With the increase of tree age, the increase of yield, the more and more serious physiological diseases, such as iron deficiency yellowing, calcium deficiency bitter pit, lack of manganese leaf chlorosis, no gloss, etc., should be promptly added. Basal fertilizer combined with topdressing The basal application time is early, the quantity must be sufficient, the nutrient must be full, the depth is suitable, about 20 centimeters, in order to increase the storage of nutrients in the tree. Top dressing is generally divided into quick-improvement nutrition, which can promote long-leaved shoots, flower bud differentiation and fruit enlargement. Organic fertilizer, phosphate fertilizer, potash fertilizer, biological bacterial fertilizer and medium and trace elements are applied together as base fertilizer; nitrogen fertilizer is suitable for top dressing in the spring before budding. Soil fertilization combined with foliar spraying The fertilizer is applied to the soil and is directly absorbed and utilized by the root system. This is the most basic fertilization method in the kiwifruit garden. Fertilizer sprayed through the leaves of the tree absorbs nutrients with high utilization and absorbs quickly. Orchard fertilization combined with irrigation Kiwifruit garden with irrigation conditions, timely irrigation after fertilization in order to fully play the fertilizer effect. Dry land should be fertilized or applied after rain. 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 Guangzhou Zhongzhinan Supply Chain Co.,Ltd. , https://www.zhongzhinanlighting.com