The latest course of fertile mandarin fertilization management techniques and methods
Wo mandarin is a citrus variety developed by Israel, which has not been introduced into our country for a long time. At present, it is mainly planted in Guangxi, with the advantages of late ripening, beautiful appearance and high yield. In planting fertile mandarin, the maintenance after planting is very important, and the main fertilization work needs to be completed especially according to the fertilizer characteristics of the tree. So let's find out what the specific fertilization work is like.
1. Characteristics of fertilizer requirement
Wo mandarin likes fertilizer, needs a large amount of fertilizer, is sensitive to some trace elements, and is easy to lack magnesium, zinc and boron, so it needs to supplement trace element fertilizer from time to time. The base fertilizer should be fully applied before planting, and the topdressing can be reduced in the later stage. Young trees are mainly nitrogen fertilizer, a small amount of phosphorus and potassium fertilizer. Adult trees according to the period of fertilization, vegetative growth, mainly rely on nitrogen fertilizer, reproductive growth mainly depends on phosphorus and potassium fertilizer, with a small amount of nitrogen fertilizer, some trace element fertilizer. As the tree grows, the amount of fertilizer should be increased.
2. Fertilization for young trees
The base fertilizer is about half of that of the adult tree before planting. After planting, the root system of the young tree is weak, so it can be applied with light fertilizer and water, and a small amount can be used many times. Waiting for the root system to be stronger, you can top fertilize and promote the growth of branches. But young trees do not bear fruit, so do not apply too much phosphorus and potassium fertilizer, generally do not use chemical fertilizer, easy to grow, farm manure, fertilizer effect is relatively long. Topdressing mainly in summer and early autumn can promote shoots.
3. Fertilization for adult trees
Trees can be prepared for fruit when they grow up, so they need to store a lot of nutrients and apply more farm manure. Many times topdressing, pay attention to control shoots, no longer promote new shoots, do not apply nitrogen fertilizer, enter the stage of reproductive growth as soon as possible, early fruit, fertilization should not be applied widely in the whole garden, mainly one plant is used, ring ditch fertilization, easy to absorb, do not hurt the heel. After fertilization, it can be better absorbed by watering. Adult trees that do not bear fruit can be watered regularly.
4. Fertilization for fruit trees.
The fruiting trees that have already borne fruit and fruiting for several years may apply more fertilizer, mainly in time after fruit harvest, and apply base fertilizer in spring before fruit, less fertilizer in summer and shoot control. The main thing is to topdressing fertilizer many times before flowering and fruiting period, generally before, during and after the period, you can apply some chemical fertilizer appropriately, but mainly apply phosphorus and potassium fertilizer. It is necessary to ensure water supply during the fruiting period, so that there can be no lack of fertilizer and it is easy to lose fruit.
Mandarin fertilization is mainly divided into stages to fertilize, supplement tree nutrition, mainly according to the fertilizer needs of different periods, but should follow the general principles of fertilization. Be careful not to apply fertilizer blindly, apply fertilizer at will, or apply too much fertilizer.
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