According to the characteristics of the need fertilizer, the growth of branches and roots, and the development of the fruit, determine the appropriate fertilization period, fertilizer type, amount, and fertilization method (pour irrigation, hole application, trench application, or soil covering after spreading, etc.), Note that nitrogen, phosphorus, potassium and organic and inorganic fertilizers with a reasonable mix.
(1) Sapling Fertilization: The young orchards are mainly used to promote vegetative growth and to cultivate strong, leafy crowns, which lays a good foundation for the future high-yield and stable production. The young roots of the young trees are weak and have poor absorption capacity for fertilizers. The fertilization should be applied sparingly, with nitrogen and phosphorus as the main factors. Fertilizing should be started when the new shoots are first matured and the new shoots are taken after the first year of planting. Application of urea 5 ~ 10g, calcium superphosphate about 10g, 3 ~ 5kg of diluted manure water, to promote new shoots germinating and mature. In the future, as the age of trees increases, the amount of fertilizer can be gradually increased, and “one shoot and two fertilizers†can be mastered, that is, before and after the emergence of new shoots.
(2) Fertilization of the result tree: It can be divided into three applications. The first application of strong fruit fertilizer (spring shoot fertilizer) was applied from January to early February, accounting for about 30% of the annual fertilization amount, mainly for quick-acting fertilizer, applying 0.5~1kg of potassium fertilizer 0.5kg as compound fertilizer. Apply lime 1-1.5kg. The fertilization not only promptly promotes substantial enrichment of spring shoots, promotes the growth of branches and trunks, increases tree vigor, but also greatly increases the fruit setting rate, promotes rapid expansion of young fruit, reduces acid and sweetening, and improves quality. And production. The second application of fruit fertilizer (summer shoot fertilizer) is applied after fruit picking, which accounts for about 50% of the annual fertilization amount, and is mainly available nitrogen fertilizer, combined with the application of organic fertilizer (green manure, cake fertilizer, compost, etc.) and phosphate fertilizer. Can be applied to cooked organic fertilizer 10 ~ 15kg, calcium magnesium phosphate fertilizer 1 ~ 2kg, compound fertilizer 0.75 ~ 1kg, urea 0.5 ~ 1kg, lime 1 ~ 1.5kg. The fertilization is very important. It can quickly restore the tree vigor, concentrate on the extraction of a large number of tidy and robust summer shoots, enrich the resulting mother shoots, and promote good differentiation of flower buds. The third application of flowering fertilizer is generally applied before the flowering of thistle, accounting for about 20% of the annual fertilizing amount. The delay is based on the addition of manure, livestock and manure water, and phosphorus and potash fertilizers. The application of compound fertilizer is 0.5~1kg, organic fertilizer (pig Manure water) 15 ~ 20kg, open ring groove. This fertilization not only promotes good flowering, flower development, normal flower development, and high fruit setting rate, but also enhances the wintering ability of young fruit. It is an important measure to prevent the size and size of the fruit and ensure the stable production of high yield. Increase production measures.
(1) Sapling Fertilization: The young orchards are mainly used to promote vegetative growth and to cultivate strong, leafy crowns, which lays a good foundation for the future high-yield and stable production. The young roots of the young trees are weak and have poor absorption capacity for fertilizers. The fertilization should be applied sparingly, with nitrogen and phosphorus as the main factors. Fertilizing should be started when the new shoots are first matured and the new shoots are taken after the first year of planting. Application of urea 5 ~ 10g, calcium superphosphate about 10g, 3 ~ 5kg of diluted manure water, to promote new shoots germinating and mature. In the future, as the age of trees increases, the amount of fertilizer can be gradually increased, and “one shoot and two fertilizers†can be mastered, that is, before and after the emergence of new shoots.
(2) Fertilization of the result tree: It can be divided into three applications. The first application of strong fruit fertilizer (spring shoot fertilizer) was applied from January to early February, accounting for about 30% of the annual fertilization amount, mainly for quick-acting fertilizer, applying 0.5~1kg of potassium fertilizer 0.5kg as compound fertilizer. Apply lime 1-1.5kg. The fertilization not only promptly promotes substantial enrichment of spring shoots, promotes the growth of branches and trunks, increases tree vigor, but also greatly increases the fruit setting rate, promotes rapid expansion of young fruit, reduces acid and sweetening, and improves quality. And production. The second application of fruit fertilizer (summer shoot fertilizer) is applied after fruit picking, which accounts for about 50% of the annual fertilization amount, and is mainly available nitrogen fertilizer, combined with the application of organic fertilizer (green manure, cake fertilizer, compost, etc.) and phosphate fertilizer. Can be applied to cooked organic fertilizer 10 ~ 15kg, calcium magnesium phosphate fertilizer 1 ~ 2kg, compound fertilizer 0.75 ~ 1kg, urea 0.5 ~ 1kg, lime 1 ~ 1.5kg. The fertilization is very important. It can quickly restore the tree vigor, concentrate on the extraction of a large number of tidy and robust summer shoots, enrich the resulting mother shoots, and promote good differentiation of flower buds. The third application of flowering fertilizer is generally applied before the flowering of thistle, accounting for about 20% of the annual fertilizing amount. The delay is based on the addition of manure, livestock and manure water, and phosphorus and potash fertilizers. The application of compound fertilizer is 0.5~1kg, organic fertilizer (pig Manure water) 15 ~ 20kg, open ring groove. This fertilization not only promotes good flowering, flower development, normal flower development, and high fruit setting rate, but also enhances the wintering ability of young fruit. It is an important measure to prevent the size and size of the fruit and ensure the stable production of high yield. Increase production measures.
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