If you want jujube trees to produce big and sweet jujubes, you need to top-dress fertilizer in the early flowering stage, flowering stage, and strong fruit stage. In the early flowering stage, you can spray boron fertilizer or zinc fertilizer. If the tree is weak, it will It is necessary to combine phosphorus and potassium fertilizers, and use fertilizers that expand the fruit and prevent sun cracking during the fruiting period. This can help the jujube tree absorb nutrients and allow the jujube tree to accumulate more nutrients.
If we want the jujube trees to grow big and sweet, fertilization is very important. Generally, jujube trees can be fertilized in several stages during their growing season, including base fertilizer, germination fertilizer, flowering fertilizer, fruit-assisting fertilizer, and top-dressing fertilizer.
When the new shoots of jujube seedlings grow to 10-15 cm, quick-acting nitrogen fertilizer should be applied in combination with irrigation. You can dig ditches before rain and apply topdressing fertilizer. While topdressing the roots, spray fertilizer on the leaves every 10 to 15 days with 0.4 urea water.
Fertilizer for jujube trees
If you want jujube trees to produce big and sweet jujubes, you need to top-dress fertilizer in the early flowering stage, flowering stage, and strong fruit stage. You can spray it in the early flowering stage. Boron fertilizer or zinc fertilizer. If the tree is weak, phosphorus and potassium fertilizers should be added. During the fruiting period, fertilizers should be used to expand the fruit and prevent sun cracking. This will help the jujube tree absorb nutrients and allow the jujube tree to accumulate more nutrients.
Basic fertilizer
Basic fertilizer should be applied in autumn, mainly organic fertilizer, and some quick-acting fertilizer should be applied appropriately. Organic fertilizer should be applied slightly farther and deeper from the root distribution layer. Generally, the roots of mature jujube trees are concentrated in the soil layer 30-50 cm deep. It is best to apply base fertilizer after the jujube fruit is harvested and before the leaves fall.
Flower-stimulating fertilizer
Flower-inducing fertilizer is also called pre-germination top dressing. It is very beneficial to the differentiation of flower buds and flowering and fruiting. This top dressing is mainly nitrogen fertilizer, appropriately combined with phosphorus fertilizer, usually in 4 It is carried out in the first ten days of the month. For large trees in the fruiting period, 1 to 1.5 kilograms of diammonium phosphate can be applied to each tree.
Flowering period fertilizer
Be carried out before the jujube tree blooms and during the initial flowering period. Top dressing during the flowering period can replenish tree nutrition in time, increase the fruit setting rate, and is beneficial to the growth and development of the fruit. Mainly nitrogen and phosphorus fertilizers, with some potassium fertilizer added appropriately.
Fruit fertilizer
Top dressing during the young fruit stage of jujube trees is also called fruit fertilizer. It is usually carried out in mid-July and is the key to increasing fruit yield and quality. This time Top dressing should be a combination of nitrogen, phosphorus and potassium.
Outer-root top dressing
Outer-root top dressing is also called foliar top dressing. It is used as a supplement when soil top dressing is insufficient. Foliar top dressing is mainly sprayed with nitrogen in the early growth stage of jujube trees. Every day Spray once every 15 days or so, and spray both the front and back of the leaves. It is best if the leaves are covered with mist droplets and do not flow.
How to fertilize jujube trees
Among similar fruit trees, jujube trees require a larger amount of fertilizer. Whether it is base fertilizer or top dressing, the type and amount of fertilizer should not be lower than the average level. Only in this way can the normal growth of jujube trees and flowering and fruit setting be ensured.
In addition, top dressing of jujube trees is not limited to the number of times. Top dressing can be carried out during the budding stage, differentiation stage, flowering stage, and fruit setting stage. The dosage should account for 30 to 40% of the total annual amount.