Planting techniques of Hongxin pomelo

Red heart pomelo is a common fruit in China. Compared with ordinary grapefruit, it has good taste and high nutritional value, so it is very popular. At present, it is being planted in most areas. What are the planting techniques of red heart pomelo?

The main results are as follows: 1. Land selection and land preparation: select the sloping land without pollution, the slope is less than 20 °for planting, and the soil is neutral and weak acid. Under the condition of dry land, the tillage depth is 50-90cm by using powder ridge machine.

2. Grafting: the excellent scion of Hongxin pomelo was introduced, the local sour pomelo seedlings were selected as rootstock, and the grafting method was single bud cutting.

3. Planting: according to the plant spacing of 4.5m X6.2m Ling 420,500plants per hectare, each hole was 95cmX95cmX95cm in length, width and depth, 2kg of soil fertilizer was applied in each hole, 25-50kg of mature human and animal manure, 200kg-300g of water-retaining agent and 0.5-1kg of compound fertilizer were applied. The cultivated red heart pomelo seedlings were treated with soil in fixed root water for 30 minutes and dried naturally.

4. Seedling treatment: after grafting survived, thin liquid fertilizer or dung water can be applied for 15-20 days, once a month, keep a strong new shoot of scion, cut the rest, wipe off the sprouting millet from rootstock at any time, unbind after 20-30 days, to facilitate the healing and growth of grafting position, pay attention to watering irrigation to keep the soil or nutrient mud moist, when the stem cork part of the new tip of scion is about 15 cm long, it can be planted in the nursery.

5. Field management technology:

(1) Fertilizer and water management: the tree shape of red flesh honey pomelo is large, the number of flowers and fruits is relatively high, and the demand for nutrition is relatively large. Especially after the red flesh honey pomelo enters the fruiting stage, nutrition and reproductive growth are carried out together, and topdressing is needed for more than five times in the whole fruiting period. For example, for the first time in mid-March, the main topdressing fertilizers were compound fertilizer and urea, in order to promote the growth of new shoots and improve the flowering rate. Then, in the early fruiting period of mid-May, strong fruit fertilizer was applied, mainly farm manure. We should control the application of water and fertilizer according to the age of fruit trees, fruit amount, soil and other conditions to ensure to meet the water and fertilizer needs of red flesh honey pomelo.

(2) Prevention and control of diseases and insect pests: the prevention and control of diseases and insect pests of red flesh honey pomelo is very important, diseases and insect pests will cause harm to all organs of red flesh honey pomelo tree. As a result, the flowering and fruiting rate of pomelo is seriously affected, the planting benefit is low, resulting in reduced yield or even no yield and other consequences. The common diseases and insect pests of red flesh honey pomelo are similar to ordinary white pomelo and other citrus fruit trees, mainly for prevention. Disinfect the orchard regularly, strengthen the management of the orchard, often observe the orchard, and achieve early detection and treatment of diseases and insect pests. Promote the growth of red flesh honey pomelo, strengthen the growth, improve the resistance and immunity of the tree, and reduce the incidence of diseases and insect pests.

(3) pruning: pruning the growth process of grapefruit is a problem that many people ignore. In fact, the growth of grapefruit needs sufficient light, otherwise it is very difficult for grapefruit to grow up and to precipitate sugar. Young tree pruning is to promote the growth of main branches, while adult tree pruning is to increase production and improve quality. Pruning is based on the principle of pruning old branches, withered branches, diseased branches, insect branches, weak branches, dense branches, and retaining strong branches.

Generally speaking, Hongxin pomelo is easy to grow and the technology is easy to master. As long as you choose a good site, master the grafting technology, and do a good job in the late management technology.