Fertilizer is applied well, jujube trees have fewer pests

Fertilization is an important part of the management of jujube trees. However, in recent years, the amount of farmyard manure has decreased greatly. Most of the jujube farmers have not applied organic fertilizer to jujube trees for many years. Only inorganic fertilizers such as nitrogen fertilizer and phosphate fertilizer have been applied, resulting in lower soil organic matter, uneven soil nutrients, soil aggregate structure changes, and soil compaction. The jujube root system cannot fully absorb nutrients and water, and the growth period cannot meet the normal growth needs. Jujube trees are strong and weak, and their own disease resistance is reduced, which ultimately leads to a decrease in the quality of jujube fruits and a decrease in benefits. At the same time, due to the change of soil structure, the elements such as nitrogen and phosphorus are also adsorbed and fixed by the soil, which cannot be absorbed and utilized by jujube trees, resulting in a lot of waste.

Therefore, remind the majority of jujube farmers to change their understanding, scientific fertilization, organic fertilizer, supplemented by inorganic fertilizer, balanced fertilization, it is best to use soil testing formula fertilization, which not only saves costs, but also increases economic benefits. Pay attention to the application of organic fertilizer. Bio-organic fertilizer can be used without farmyard manure. In addition to organic matter and other nutrients, bio-organic fertilizer also contains microbial fungi. The beneficial bacteria can activate the soil, make the soil loose and transparent, and improve fertilizer. Utilization.
If farmyard manure or bio-organic fertilizer is used as base fertilizer, it must be applied in depth. The farmyard manure should be used with a certain proportion of NPK fertilizer, and the effect is better. In the later stage, according to the growth of jujube trees and the amount of fruit hanging, the topdressing is selected in a targeted manner. The topdressing fertilizer is mainly based on phosphorus and potassium fertilizer, and it should be applied to the root system to facilitate absorption. After the jujube fruit enters the expansion period, the spraying of potassium fertilizer and calcium fertilizer on the leaf surface has a certain effect on the expansion of the jujube fruit and the improvement of the quality.