Planting technique of bergamot

Papaya can be planted after first frost. Greenhouse cultivation can be planted in early and middle March, and it is suitable to plant in the open field in mid-April. When planting, the hole should be large and deep, about 1m square and 1m deep. Fill the excavated soil into the pits of13, apply 200 ~ 250kg of decomposed high-quality ring fertilizer to each pit, and fully mix with the pit soil, then cover it with 20cm of soil and tamp it with feet. When planting, take down the seedling flowerpot or plastic bag, take the soil into the hole, and the land is level with the ground, then bury it. Water after planting to promote its slow seedling. Planting density: If the seedlings are raised by planting melons and large seedlings are planted, 20 ~ 30 plants can be planted per 667 square meters. When cutting seedlings, the density can be appropriately increased, the row spacing is 3 ~ 4 m, the plant spacing is 2m, and 80 ~ 120 plants per 667 square meters.

Erection, vine introduction and pruning

Papaya has strong fecundity and climbing ability, grows rapidly, and leaves and vines are dense and shade each other. If they grow, they are most likely to wither and drop flowers and fruits. Therefore, when the vine grows to about 40cm, it is necessary to adjust measures to local conditions, hook the tendrils of bergamot with bamboo poles and ropes, and lead its leaves to climb frames, trees and walls. The lateral branches of bergamot have strong meristematic ability, and each leaf axil can germinate a lateral bud. From planting to the vigorous growth period of the plant, the aboveground stem elongates slowly, and the lateral branches at the base of the stem divide quickly, which is easy to form clumps, which affects the stretching and unfolding of the stem. Therefore, the lateral buds at the base of the stem should be erased in time in the early stage, leaving only 2 ~ 3 new shoots per plant. Lateral branches are not allowed to grow after being put on shelves, but attention should be paid to adjusting the extension direction of stems and vines to make them evenly distributed and ventilated.

Water and fertilizer management

(1) Within 1 month after planting, the seedlings should be covered and heated to promote growth and development. In the meantime, there is no need for topdressing, only a small amount of water is needed.

(2) During the period of rapid root system development, more intertillage should be done to loosen the soil, promote root system development, and lay the foundation for the vigorous growth of plants after autumn. Water regularly in summer to keep the soil moist and increase the air humidity, so that papaya can spend the summer safely.

(3) In autumn, the growth of aboveground parts of plants is obviously accelerated to enter the vigorous growth period, which requires fertilizer and water to make the aboveground parts of plants grow rapidly and have more lateral branches, laying a material foundation for more flowers and fruits.

(4) During the flowering and fruiting period, the daily transpiration is large, and sufficient water and fertilizer are needed to keep the soil moist. Nitrogen and phosphorus fertilizers can be sprayed on the leaves for 2-3 times, or decomposed human and animal fertilizers can be applied.