The fruit tree is the fruit tree.

Grapefruit is a kind of fruit belonging to citrus trees, which has a very large planting area in our country. When planting grapefruit trees, we need to do a good job in management, especially fertilization management. If fertilization is improper, it is very disadvantageous to the growth of grapefruit, so we must pay attention to reasonable fertilization when planting. So how to fertilize grapefruit? Today, the editor has brought you the fertilization skills of pomelo trees. Let's take a look at it.

1. Rational application of organic and inorganic fertilizers

Farm manure has a lot of nutrients, and the fertilizer effect is relatively good and stable, which is very effective for improving soil structure. It can be of great help to the yield and quality of grapefruit. However, when we apply farm manure, we must pay attention to the full maturity of farm manure. However, in farm manure, the content of nitrogen, phosphorus, potassium and other elements is relatively small, which can not meet the needs of grapefruit trees for these elements. Therefore, we should also pay attention to the appropriate application of some nitrogen, potassium, magnesium and boron and other inorganic fertilizers.

2. Fertilize according to the tree potential

When applying fertilizer, we should first look at the age of the grapefruit tree. The fertilizer used is different according to the age of the tree. Then there is the phenology of pomelo trees, as well as the amount of flowers and fruits and tree potential, etc., to determine the type and amount of fertilizer. In the young pomelo tree stage, fertilization should be based on the principle of a small number of times, mainly nitrogen fertilizer, supplemented by phosphorus and potassium fertilizer, to ensure the amount of branches and leaves to achieve the goal of stable and high yield. Then the amount of phosphate fertilizer should be increased during the flowering period, flower bud differentiation and young fruit stage of grapefruit trees. If the tree is too strong, the application of nitrogen fertilizer should be controlled.

3. Fertilizing according to the growing period

In March, half a month before the pomelo tree germinated, the fertilizer was mainly nitrogen fertilizer. Combined with the application of appropriate amount of phosphorus and potassium fertilizer to promote the emergence of spring shoots of grapefruit trees. This fertilization has a great impact on the yield of pomelo trees in the current year and next year, so it is necessary to do so as soon as possible. Then, after the fruit gradually expanded, it was mainly nitrogen fertilizer, supplemented by phosphorus and potassium fertilizer. Wait until the fruit growth period, the demand for fertilizer increases, to be timely topdressing, to ensure that the tree potential, to ensure that grapefruit trees can survive the winter normally. Fertilization should be based on organic fertilizer, combined with the application of available fertilizer.

4. Fertilization according to soil properties.

When planting grapefruit trees, if the soil is red soil, then the fertilizer should be based on alkaline fertilizer, not acidic fertilizer. And some plant ash and lime should be sprinkled properly, and the main application methods are re-application and deep application. However, we should pay attention to control the number of fertilization, and if it is paddy soil, then we should pay attention to multiple fertilization. The fertilizer is dilute fertilizer or compound fertilizer with high concentration. Prevent the loss of fertilizer nutrients and improve the utilization rate of fertilizer. Then soil testing and fertilization should be carried out to control the amount of all kinds of fertilizers according to the nutritional composition of the soil.

The above is a brief introduction to the fertilization skills of grapefruit trees. That's all for today's introduction. This article is for reference only. I hope it can help you all.