Planting techniques of Yangpu peach

Syzygium is also called Tiantao, Lotus Mist, Lianwu, etc. It is a tree plant of Syzygium genus of Myrtaceae family. It is known as "Fruit Emperor" in Taiwan. It is sold well in the fruit market and is favored by consumers. In addition to being used as fruit, it is also used in landscaping. Verdant trees, green branches and leaves, and rich fruits have become beautiful landscapes for beautifying the environment. Let's take a look at the planting techniques of Syzygium together!

Growth Habits of Syzygium

Syzygium chinense was introduced into China Taiwan in the 17th century and cultivated in Hainan, Guangdong, Guangxi, Fujian and Yunnan successively after 1930s, but the cultivated quantity was still small. Its adaptability is strong, coarse and easy to grow, warm, afraid of cold, like wet fertile soil, the soil conditions are not strict, cultivation can be done pruning. Flowering 3~4 months, fruit ripening 5~6 months.

Propagation Techniques of Syzygium chinense

The propagation of Syzygium mandshuricum is mainly carried out by aerial layering method, which is carried out in the rainy season with high temperature and humidity from May to September every year. Select branches about 3 cm in diameter and fully developed, first peel them in a ring about 3 cm long at the base, wrap them with mud mixed with wet soil and grass, wrap them with transparent adhesive paper, and tie them tightly with nylon ropes at the upper and lower ends. After about a month, new roots grow at the top of the peeling. After about 3 months, many new roots will grow, and the roots will be cut below, that is, independent seedlings. The first false planting in the nursery to continue cultivation, the following spring planting field.

Cultivation Techniques of Syzygium amurense

1. Planting time: The planting period of syzygium is generally better in spring and autumn, not too late, avoiding high temperature and low temperature or dry season planting. From March to May, the rain is sufficient and the light is relatively mild, which is very suitable for the root activity and germination of Syzygium chinensis, and the planting survival rate is high. From August to October, the climate conditions are still suitable for planting Syzygium mandshuricum on hillside, and the climate conditions are still suitable for rooting and sprouting of Syzygium mandshuricum in this period, but it is easy to have high temperature and drought weather in this period, so it is necessary to do a good job of shading and drought prevention for transplanted seedlings.

2. Planting density: Syzygium persicum grows fast and has a long life span. Planting density should be comprehensively considered according to varieties, terrain, soil and climatic conditions, and determined by specific analysis. The planting density can be densely planted in the early stage, planting according to the plant spacing of 4×4 meters, that is, planting 40 plants per mu to ensure the yield in the early stage. Thinning is carried out after the production of foreign syzygium reaches the full production period and the orchard begins to be shaded, and the specification of about 20 plants per mu is reserved to ensure the quality and yield of foreign syzygium.

3. Planting method: Before planting, spread fine soil on the holes of the base fertilizer to prevent the roots of the seedlings from contacting the base fertilizer and causing rotten roots, affecting the survival rate. The planting center is slightly piled into small mounds, the roots of the seedlings are scattered around the small mounds, and then the seedlings are straightened by hands, piled with soil, and lightly stepped on by feet, so that the roots of the seedlings fully contact the soil without pressing the soil too firmly. After planting, root water should be poured in time, and some branches and leaves should be cut properly. Within one month after planting, check the survival of seedlings in time, and replant dead seedlings.

4, plastic pruning: foreign peach should adopt the natural round-headed pruning method, after planting, leave a trunk, cut off the upper end 60 cm from the ground, take out new branches to leave 3~4, let it grow naturally, become the main branch. Every year after fruit picking, the branches are thinned and cut off, such as diseased branches, dead branches, over-dense branches and excessive branches. After pruning, it is necessary to protect the wound in time, apply grease "callus antiseptic film" to seal the wound, prevent dry crack and invasion of germs.

5. Fertilizer and water management: Syzygium chinense grows fast and requires a large amount of fertilizer. 1~4-year-old trees are generally dominated by quick-acting fertilizer. In the early stage, nitrogen and potassium fertilizer should be applied. Circular grooves should be dug in the canopy drip line for fertilization. No more nitrogen should be applied during flower bud differentiation period. The amount of fertilizer applied in March and April and at the end of fruit picking in July is 25% of that of the whole year, and the amount of fertilizer applied in September and October accounts for 50% of that of the whole year. After small fruit, phosphorus and potassium fertilizer should be applied again. Scientific management of water, 9~10 months to keep orchard drought in favor of flower bud differentiation, other time should keep the soil moist, to prevent flower drop fruit.

6, flower and fruit management: foreign syzygium flower quantity is more, fruit quantity is also larger, should first thin out branch end flower ear. There are 1~2 pairs of flower ears on the big branches. Thinning out over-dense flower ears and bagging when the flower ears are about 2 cm can improve the quality of fruits and prevent fruit flies from damaging them. In order to adapt to the market demand, flower induction and other treatments can be carried out to make Syzygium from vegetative growth to reproductive growth. Common method ring cut daub cationic active agent "promote flower king 2", make growth function to reproductive function transformation, promote flower protection fruit, do not hurt tree vigor.

7. Cold-proof measures: In addition to strengthening fertilizer management to make the tree vigorous and applying more potassium fertilizer to enhance cold resistance, Syzygium myrtillus can spray 98% sodium theacetate (SNA) and Jibo element (GA3) 100,000 - 200,000 times solution every week from December, and spray high concentration 98% sodium theacetate 40,000 - 50,000 times one day before and after the cold current strikes. If frost, should be late at night or the next morning spray groundwater to wash away the accumulation of frost leaves.

8, pest control: Syzygium is particularly sensitive to pesticides, should not use highly toxic pesticides, diseases are mainly anthracnose and fruit rot, pests are mainly fruit flies, scarabs and scale insects, can use mancozeb, carbendazim, thiophanate-methyl and fenvalerate and other low-toxic and efficient pesticides plus new lipid film control, both to enhance efficacy, but also to reduce pesticide dosage.