Fruit farmers know that fertilization in orchard includes underground fertilization and foliar fertilizer. If the underground fertilization is a fruit tree meal, the foliar supplement is a meal, which allows the fruit trees to have enough nutrients during the critical period of growth.
However, as we all know, the different growth and development periods of fruit trees are different for different nutrient elements, so what time to supplement the fertilizer, this also has specific requirements, and can not be fertilized casually.
Underground fertilization can solve the basic fertilization throughout the year, but in the fruit development period, the demand for different elements needs to be supplemented by foliar fertilizer, such as foliar supplementation, foliar supplementation, and leaf Calcium supplementation, there are some old methods like supplemental potassium dihydrogen phosphate, or urea, the recent development of microbial fungus foliar fertilizer, can supplement the growth of fruit trees.
Fertilizers are different and contain different nutrients. The time for natural fertilization is also different. For example, in the early stage of growth and development, boron and zinc supplementation are needed. In the flower bud differentiation stage, phosphorus supplementation can promote flower bud differentiation, usually before and after bagging; if calcium is added, it is often before fruit bagging; quality.
Knowing how to choose fertilizer, how to spray fertilizer can not be ignored. It can be sprayed like a cloudy day, but it can't be sprayed in the fog; in the middle of the day, the spray effect is the best at 4 o'clock in the afternoon; when spraying, it is best to spray the back of the leaves, so that the absorption effect is the best; The concentration is related to the maturity of the leaves. The spring is low and the autumn is high. In order to let the fruit trees fall early and improve the frost resistance of the fruit trees, high concentrations of urea can be sprayed, and 5% can be used. If it is normal autumn fertilization, urea The content should not exceed 2%, and about 1% is basically enough.
Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone
Smart Door Lock,Smart Security Door Locks,Fingerprint Smart Door Lock,Electronic Key Card System Smart Lock
Shenzhen Bio Technology Co., Ltd , https://www.hfsecuritytech.com