Cultivation techniques of Hongxin pomelo

Red-heart pomelo is a grapefruit with red flesh. Compared with ordinary grapefruit, it not only tastes good, but also has more appetite, so it is very popular. What are the cultivation techniques of red-heart pomelo?

1. Select the place

Choose areas with convenient transportation to plant red flesh honey pomelo, at the same time, there can not be ordinary honey pomelo trees, to avoid pollen mixing, thus affecting the planting quality of red flesh honey pomelo. At the same time, the soil depth of the planting land should be higher than 1m and the groundwater level can be effectively controlled, and the soil pH value is about 4.5.

2. Seed selection

On the basis of pure varieties, varieties with no serious diseases, insect pests and mechanical injuries, developed roots and no rot were selected.

3. Planting and transplanting

For the orchard in the hilly land, the length, width and depth of the planting hole should be kept at 1 m. After the planting hole is excavated, it is divided into three layers, and green manure and weeds are added in the bottom layer, and some pig manure and cow manure are added in the second and third layer. This can effectively ensure the adequacy of soil fertility. At the same time, 10 days before planting, the pier surface should be set up with rotten pig manure and cow manure, the height of the pier surface is about 30cm, and the diameter of the pier surface is about 1m.

During the planting period, attention should be paid to the application of planting methods, such as spreading root system and strengthening and compacting, so as to improve the root growth efficiency. When planting soil cover, it is necessary to ensure the balance between the soil and the rhizome of red flesh honey pomelo, and use straw to cover the tree plate and pour enough water.

4. Field management technology

(1) shaping and pruning: the tree shape of red flesh honey pomelo is very large, so it is very important to do a good job of shaping and pruning. We should cultivate about 4 strong and uniform main branches on each tree. Ensure that the main and lateral branches are evenly distributed, the crown is moderate, and the shoots should be retained at the initial stage. Cut the vegetative branch short to promote branching. During plastic surgery, the fruit tree can be supported with a stick, or a rope can be used to lift the main branch. Ensure that the branches are uniform, the branches will not sink, prevent the top from appearing in the later stage, and the pruning method should be adjusted according to the tree age to ensure the growth of fruit trees.

(2) thinning flowers and picking hearts: the amount of flowers and fruits of red flesh honey pomelo is very large, so thinning flowers and picking hearts is also an indispensable management work in the process of planting. Proper flower thinning and heart picking can effectively reduce nutrient consumption, improve flower quality and fruit setting rate, avoid exceeding the bearing range of fruit trees, promote fruit expansion, improve fruit quality and expand planting benefits. Remove the weak flower branches of adult and aging trees, abide by the principle of weakening and maintaining strength, and there should be no more than 5 flowers on each fruiting mother branch. Then pick leaves from the overgrown branches at the top of the crown, and each young shoot retains about 5 leaves.

(3) Flower and fruit preservation: the flowering and fruiting of red heart pomelo in spring will be affected by some natural factors, especially in the flowering period, high temperature, high humidity and lack of water will reduce the flowering and fruiting rate of fruit trees, so we should strengthen management. to protect flowers and fruits, high yield and high quality. Proper fertilizer, water and temperature are needed for shoot growth in spring. Lack of nutrition and moisture will seriously affect the quality of flowers and reduce the rate of fruit setting. Therefore, we should properly water the fruit trees and cut the fruit trees twice to protect the fruit. However, according to the tree age, the ring cutting of the tree potential difference may lead to the senescence or even death of the fruit tree.

(4) Water and fertilizer management: it has just been said that the amount of flowers and fruits of red flesh honey pomelo is very large, so the demand for water and fertilizer is also relatively large. When applying fertilizer, we mainly control the proportion of fertilizer and nutrition according to the tree age. For example, young trees should apply more nitrogen fertilizer to promote their growth. The main principle is to apply more and less fertilizer. Then in the period of shoot growth, flower bud differentiation and fruit development, several fruit trees with large water demand should be watered in time to ensure that the soil is moist, and the soil water content should reach about 60%. However, should not be too much, too much watering or rainy days should also do a good job of drainage.

Generally speaking, red heart pomelo is very good to cultivate, as long as select good land, select good varieties, plant seedlings according to the appropriate spacing, after successful planting, do a good job of water and fertilizer, pest control and other work.