How to plant jackfruit:

Timely planting: Jackfruit can be planted all year round, but spring planting (March to April) and autumn planting (September to November) are the most suitable. good. When planting, the soil in the planting hole should be finely divided to straighten out the root system of the seedlings, and then the fine soil should be pressed into layers until the root neck is flat on the ground. Immediately after planting, water enough to set the roots and cover the tree tray with mulch.

Reasonable fertilization: The purpose of fertilizing jackfruit saplings is to promote branch growth and quickly form a crown. In addition to applying organic fertilizer as base fertilizer in winter, apply quick-acting fertilizer before each new shoot to promote and strengthen the shoots. After fruit harvesting, the fruit-bearing trees should be heavily fertilized with organic fertilizer and a small amount of quick-acting fertilizer to restore tree vigor, improve leaf function, and promote flower bud differentiation. Apply quick-acting fertilizer before germination and inflorescence in early spring to promote the growth of new shoots and inflorescence development. When the fruit grows rapidly, apply fruit-strengthening fertilizer to promote fruit development.

Water management: Jackfruit requires sufficient water, especially during the flowering period and fruit development period. If drought occurs for a long time, the small fruits will fall off or develop stagnantly. The fruits will be small and deformed, with thin flesh and poor quality. Therefore, if it is too dry during the flowering and fruiting periods, you should try to irrigate. However, waterlogging is easy to occur during the rainy season, so drainage work should be done to prevent water accumulation and root rot.

Pruning: The fruiting parts of jackfruit are on the trunk, main branches and small branches. When the height of the trunk reaches 1 meter, cut the trunk short to promote branching, and make necessary pruning of cross branches, dense branches, and overlapping branches. Generally, 3 to 4 first-level branches are cultivated, and the crown height is 3.5 meters to form Reasonable tree structure. Pruning of fruiting trees is mainly done in winter, mainly to remove dead branches, weak branches, overly dense branches, remaining fruiting branches and male flower branches.

Fruit thinning and fruit preservation: Jackfruit fruits should be thinned from March to April every year. It is appropriate to keep 3 to 5 fruits per square meter of crown, and the distribution should be even and reasonable. The principle of fruit thinning is to remove overly dense fruits and deformed fruits. During the young fruit stage, spray pesticides + fungicides + foliar fertilizer every 15 days. When the fruit is basically set, spray pesticides + fungicides every 30 days to prevent damage from diseases and insect pests. and promote fruit enlargement.

Pest control: Jackfruit pests such as longhorn beetles and beetles are common and serious, harming branches and stems, resulting in gum flow, withered branches, weakened trees, hollow trunks and even rot and death. Adult insects can be hunted and eggs scraped off, or 600 times of chlorpyrifos solution can be used to coat tree trunks and needle holes. The main diseases include leaf spot, soot disease, flower and fruit soft rot, etc., which can be controlled with 1000 times carbendazim or 1500 times chlorothalonil.

Timely Harvesting: The ripening period of jackfruit fruits is relatively concentrated from June to August, which varies due to different regional climates. The temperature is high, the flowering period is early, and the maturity is early. The temperature is low, the flowering period is late, and the maturity is late. Since the same plant has a long flowering period and matures in sequence, it must be harvested in stages to ensure quality, increase yield, and help restore tree vigor. It can be harvested when the peel has hexagonal knob-like round protrusions, is plump in appearance, is slightly soft to the touch, and can smell the aroma. It can be eaten after being ripe for 2 to 3 days. Jackfruit propagation method:

Seed propagation: During the main ripening period of jackfruit, select dry fruits that are fully mature, have normal fruit development, and are free of diseases and insect pests, wash them with clean water, and then lay them flat on the sand bed for germination. , and cover the sand bed with 1 to 2 cm of fine sand, then cover with a layer of straw, and water it 1 to 2 times a day. After about a week, the seedlings will begin to sprout and take root. When the seedlings grow 1 to 2 true leaves, Transplantation can be done in separate beds.

Budding propagation: Jackfruit seedlings can be budded when they grow to more than 1 cm, using patch budding method. Select annual, sunny mature branches from excellent varieties as scions. The scions should be kept moist and stored. It is best to graft them as they are picked. Bud grafting can be done all year round in Hainan, but the survival rate of bud grafting is higher during the rainy season and tree growth season from April to October. At this time, the rootstock and scion are easy to peel and survive after grafting.