Soil, Fertilizer and Water Management of Jujube

Jujube trees are one of the fruit trees that everyone is very familiar with. The planting area of ​​jujube trees is very wide. After jujube trees enter the full fruit period, soil, fertilizer and water management can be done to maintain the advantages of jujube trees and determine the final yield. The soil, fertilizer and water management of jujube trees in the full fruit period can be summarized as "two cultivation, four fertilizers, and three waters".

jujube

1. "Two plowing" refers to deep plowing and middle plowing. Deep turning can loosen the soil in the jujube garden, deepen the root distribution layer of the jujube tree, and expand the range of roots to absorb nutrients. Deep turning can be done in spring and autumn. Intertillage is shallow ploughing many times during the growing season, which is beneficial to reduce water evaporation, improve soil aeration conditions, promote the absorption of nutrients by jujube trees and prevent salinity and alkali.

2. "Four fertilizers" refer to base fertilizer, germination fertilizer, flowering fertilizer and fruit fertilizer.

(1) Apply base fertilizer in autumn. Before the jujube is harvested, the base fertilizer is applied to it, which is conducive to accumulating a large amount of storage nutrients and laying the foundation for the next year's high yield. The base fertilizer should be mainly organic fertilizer, and some quick-acting fertilizers can be applied appropriately.

(2) Topdressing before germination. Usually in early April of the following year. In autumn, jujube gardens without basal fertilizer should pay more attention to the application of germination fertilizer.

Soil, Fertilizer and Water Management of Jujube

(3) Top dressing during flowering. Flower bud differentiation of jujube trees has the characteristics of differentiation in the same year, multiple differentiations, differentiation with growth, short differentiation time and large number of differentiations. Therefore, jujube has a large amount of flowers and a long flowering period, which consumes a lot of nutrients. If the nutrition fails to keep up, it will inevitably lead to serious flower and fruit drop. Topdressing during the flowering period can reduce fruit drop. Topdressing fertilizer during the flowering period can be applied with soil or spray fertilizer on foliage. The effect of improving fruit set rate is better.

(4) Help fruit fertilizer. Topdressing is generally done in mid-July when young fruits are growing vigorously. This top dressing is directly related to the yield and quality of jujube. The fruit fertilizer is a compound fertilizer of nitrogen, phosphorus and potassium, which can be applied in soil or foliar spray.

Jujube trees have the highest yield in the full fruit period, and the amount of fertilizer required is also ******. Jujube trees in the full fruit period must be applied with 100 kg of organic fertilizer, 1 kg of available nitrogen fertilizer, 2.5 kg of superphosphate, and 2.5 kg of plant ash each year.

Jujube soil fertilizer and water management

3. "Sanshui" refers to the 3 times of water supply that must be guaranteed every year corresponding to 3 times of top dressing, namely, germination water, flowering water and young fruit water. Flowering water can prevent the scorching phenomenon caused by drought and reduce the flower and fruit drop. Generally, water is poured before the nails are opened. In addition to the above "three waters", some areas also have the habit of potting with frozen water to promote tree growth.

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