Cultivation techniques of Annona seedlings

Annona, also known as Sakya fruit, Lai cone fruit, Buddha head fruit, etc., is a perennial semi-deciduous small tree of Annona family, which is native to tropical America. The propagation methods include seed propagation and grafting propagation. Seed propagation seedlings have the characteristics of early fruiting and high yield, but their characters are difficult to maintain and early senescence, so grafting propagation is often used in production. Let's take a look at the cultivation techniques of Annona seedlings.

Growth habits of Annona

Litchi likes light and is more suitable for growing in a warm and humid climate. The average temperature of the best growing environment is above 22 degrees. It is not suitable for growing in cold places. Is it suitable for growing in rich sandy soil with good drainage? the main mature period is between June and November. Hainan, Fujian, Taiwan, Guangdong, Guangxi and Yunnan are cultivated in China.

Seed breeding of Annona

Annona seeds should be dried before sowing in order to promote germination, and the nursery should choose well drained and fertile sandy loam, with gentle slope and flat land as the best. Before sowing, the nursery should turn the ground deeply for 1-2 months, then use rotten organic fertilizer and a small amount of lime as base fertilizer, break and mix well, and then repair the ditch. Strip sowing or sowing can be done, with seeds of 7 to 8 kilograms per mu. Cover with river sand or fine soil, slightly compacted and drenched with water to cover grass or plastic film, nursery bed pay attention to moisturizing, but also afraid of stagnant water, so we should also pay attention to prevent too much water, so as not to cause root rot. After germination, uncover the grass or plastic film to avoid bending the seedlings.

Grafting seedling of Annona chinensis

The grafting method of litchi varies with the season, and the phloem is not easy to be cut off in spring, so the grafting method is generally used, while the bud grafting method is generally used in summer and autumn. When Annona is grafted by bud grafting, it is generally required to be unbound after 20-30 days, while the grafting method is generally used to pick buds first and then unbind. For the surviving plants grafted by bud grafting, about 15 days after unbinding, the rootstock can be cut about 5 cm above the bud graft. after cutting the anvil, a large number of sprouting will be produced at the base of the rootstock, which should be removed in time so as not to compete with the scion for nutrients and affect the bud germination. at the same time, the nursery should be kept clean, free of weeds, and ensure adequate supply of fertilizer and water. When the grafted seedling grows to 50 cm high and the stem is 1.0 cm thick, it can be planted in the nursery.