In the management of jujube trees, fertilization is an important part. Just like people want to eat, they not only have to eat but also emphasize nutrition, health, disease prevention, and jujube trees. However, due to the lack of cultivation in recent years, farmyard manure has been greatly reduced. Most jujube farmers have no longer applied organic manure to jujube trees for many years, and only applied inorganic fertilizers such as nitrogen fertilizers and phosphate fertilizers, resulting in a decrease in soil organic matter and unbalanced soil nutrients. Changes in the structure of the soil pellets, changes in soil acidity and alkalinity, soil compaction, aeration, water permeability decreased, soil fertility and water retention capacity decreased, jujube tree roots can not fully absorb nutrients and water, the growth period can not meet the normal growth needs. The jujube trees are strong and their internal disease resistance is reduced, which ultimately leads to a decline in the quality of jujube fruit and a reduced benefit. At the same time, due to changes in the soil structure, the applied nitrogen and phosphorus elements are also fixed by the soil and cannot be absorbed and utilized by the jujube tree, resulting in a lot of waste. Therefore, to remind the majority of jujube farmers to change their understanding, scientific fertilization, organic fertilizer, supplemented by inorganic fertilizer, balanced fertilization, the best use of soil testing and formula fertilization, both to save costs, but also increase economic efficiency. Pay attention to the application of organic fertilizer, no farmyard manure can use bio-organic fertilizer, bio-organic fertilizer in addition to organic matter and other nutrients, but also contains microbial fungi, beneficial bacteria can activate the soil, make the soil loose and transparent, but also Releases elements such as nitrogen and phosphorus that are fixed in the soil to increase the utilization of chemical fertilizers. Farmyard manure or bio-organic fertilizer as base fertilizer must be applied deeply. Farmers' fertilizers must be used in combination with a certain percentage of nitrogen, phosphorus and potash fertilizers. According to jujube growth and fruiting capacity in the later period, there is a targeted choice of topdressing, topdressing with phosphorus and potash fertilizers, which are applied near the roots to facilitate absorption. After the jujube fruit enters the expansion stage, spraying potassium fertilizer and calcium fertilizer on the leaves has a certain effect on the enlargement of the jujube fruit and improving the quality. Through reasonable fertilization, the structure of the soil is completely changed, the jujube tree vigor is enhanced, and the ability of the jujube tree to resist pests and diseases is improved. At the same time, other agricultural management is strengthened, drug control is reduced, prevention and treatment costs are reduced, and the quality of jujube fruit is improved.
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