Fertilization techniques of kiwifruit in spring

With the increase of temperature, kiwifruit gradually became active after the dormant period, and it was also the spring fertilization period. Scientific fertilization was beneficial to the development of kiwifruit flower bud, coordinate the contradiction between reproductive growth and vegetative growth, and improve yield and quality. So how to fertilize kiwifruit in spring? Come and have a look with the editor.

1. Purpose and time of fertilization

Kiwifruit spring fertilization is also called sprout fertilizer, its purpose is to promote branch and leaf growth, supplement nutrients for kiwifruit flowering, improve fruit setting rate, if the fruit trees without base fertilizer in autumn, topdressing in spring is more important. After soil thawing and sap flow, kiwifruit fertilization in spring is the best before sprouting, and the temperature is different in different places. its approximate time is from the end of February to the middle of March.

2. Fertilization method

Should be determined according to the size of the crown coverage, outside the crown 2/3, that is, according to the orchard tree trunk 60-100cm, fertilization should not be too concentrated, so as not to burn roots due to lip fertilizer damage in the case of drought and lack of water, it is better to apply holes or radial ditches, the ditch depth is 30-50 cm, and the fertilizer should be mixed well with the soil after fertilization.

3. Fertilizer application amount

This fertilization is mainly suitable for nitrogen fertilizer, with biological bacterial fertilizer reasonably, chemical fertilizer with high nitrogen, medium phosphorus and low potassium compound fertilizer, and biological bacterial fertilizer is suggested to choose bacterial fertilizer in multi-bacteria. In general, 1.5 kg of compound fertilizer and 6 kg of microbial fertilizer were applied to each tree in the full fruiting stage, while 1 kg of compound fertilizer plus 3 kg of microbial fertilizer was applied to each tree, and 0.5 kg plus 2 kg of microbial fertilizer was applied to each young tree. In the orchard without base fertilizer at the end of autumn, the strength needs to be increased on this basis, and then the loose soil increases soil permeability, promotes root germination, improves absorption capacity, enhances tree resistance, and reduces the possibility of occurrence of diseases and insect pests.

The above is the introduction of kiwifruit fertilization technology in spring. I hope it can help you. If you want to know more about it, please follow us.