1. Land selection: select the place with deep and loose soil layer and acidic soil as the planting land. Terraces, trenches or fish scale pits need to be built on sloping or gentle slopes, and the width of terraces is 4-6 meters. 2. Planting: spring sowing time is from early February to late March, and autumn sowing time is1early October 10 to1early October 1 165438. Before planting, an appropriate amount of base fertilizer should be applied, with a density of 30-45 plants per mu and a spacing of 4-5 meters. 3. Management: Cover the sunshade net in hot weather and pay attention to pest control.

I. Planting techniques of Dongkui Myrica rubra

1, land selection

Choose a place with deep soil layer, loose texture and acidic soil, which belongs to red loam or black loam as planting land. Dongkui Myrica rubra is suitable for growing on sloping or gentle slopes, and terraces, ditches or fish scale pits need to be built. The width of terraces is generally 4-6 meters. If the slope is steep and it is difficult to dig terraces, you can dig fish scale pits for planting.

Step 2 plant

(1) planting time

Mainly divided into spring seeds and autumn seeds (mainly spring seeds). Spring sowing time is generally from early February to late March, and autumn sowing time is generally from early June to early October 10/0165438+ 10.

(2) Excavation and backfilling

The pond should be dug 1-2 months before planting, and the length, width and depth of the pond hole are 80 cm. When backfilling, base fertilizer should be applied. Generally, decomposed farmyard manure 15-20k g/ pool and phosphate fertilizer 1kg/ pool can be applied. When covering the soil, the cooked soil is below and the raw soil is above.

(3) Planting density

The planting density is generally 30-45 plants/mu, the row spacing is 5-7m, and the plant spacing is 4-5m. When young trees are planted, they can also be densely planted, and 50-60 trees can be planted per mu, so that higher economic benefits can be obtained in advance and then transplanted.

(4) Deep planting, soil covering and compaction

(1) Because the scion can take root by itself, instead of the root of the rootstock, the seedling should be deeply planted in the leaves (the trunk and leafless part at the lower end of the main branch of the seedling are buried in the soil), which can reduce the sun exposure and improve the survival rate after planting.

(2) After the seedlings are put into the planting pond, it is necessary to pay attention to let the roots extend around, then cover the soil, tamp the soil, and then cover it with a layer of loose soil with a thickness of 3-5 leaves at the lower end of the main branch.

(5) configuring pollination trees

Myrica rubra is dioecious, and 0. 1%- 1% male plants should be used as pollination trees when the garden is built.

Step 3 manage

(1) Shading and covering

In those days, the newly planted Dongkui Myrica rubra had underdeveloped roots and was easy to get sunburned. Therefore, in the hot and scorching sun from July to September, it is necessary to cover the sunshade net or shade with branches, and then take off the shade after entering 5438+ 10 in June.

(2) plastic trimming

(1) Young trees can be cultivated into natural crown with three main branches. After planting, cut the trunk at 60-80 cm, and then select 3-4 branches with vigorous growth and uniform azimuth distribution as the main branches, with the appropriate spacing of 15-20 cm and the opening angle of 45-60? Suitable.

(2) When the branches are too long, the core should be removed or cut off, and the dense, sparse and clustered branches should be properly thinned to ensure that the tree skeleton is solid, the affiliation is clear, the growth is balanced, and the branches are thick, which is beneficial to the formation of side branches.

(3) After entering the fruiting period, it is necessary to cut lightly, not to cut short branches, but to cut off dead branches, diseased branches, weak branches and long branches, and the weak fruit branches can be retracted and updated. Generally speaking, the branches around the whole tree crown should be evenly distributed and ventilated and transparent. When leaving branches, the upper part should be thin and the lower part should be important. The bearing branches of the main branches and auxiliary branches should be short on the top and thick on the bottom, so that the inner and outer branches can grow healthily and the green leaf layer will become thicker.

(3) Soil improvement and fertilization

Fertilizer is mainly organic fertilizer, followed by potash fertilizer, and the use of phosphate fertilizer needs to be controlled. Attention should be paid to improving the soil during the young tree period, ploughing deeply all the year round, and removing miscellaneous trees and weeds around the crown. After the crown is enlarged, the holes are enlarged and deepened year by year, and appropriate manure and plant ash are applied to fertilize the soil and promote the development of mycorrhiza.

(4) Topdressing

(1) Within 2 years of field planting, topdressing should be done once in spring, summer and autumn before new shoots germinate, and each plant should be topdressed with about 2kg or 0. 1 kg urea and 0.2kg potash fertilizer, and mixed with water. Pay attention to the separate application of urea and potash fertilizer.

② The fruit trees that have been put into production need to be fertilized twice a year, that is, after fruit picking and before spring germination 1 time. If conditions permit, it is suggested to apply quick-acting fertilizer again in the young fruit period. According to the standard of high-yield trees, the annual fertilization amount (per plant) is 50 kg of manure, 30-40 kg in plant ash and no more than 0.3 kg of phosphate fertilizer.

(3) After the fruit is picked, in order to restore the tree vigor, promote flower bud differentiation and provide conditions for high yield in the following year, fertilization is also needed once. The amount of fertilizer applied this time should account for 60% of the whole year, and spring fertilizer should account for about 40%.

(5) Pest control

① Brown spot: reddish-brown spots appear on the leaves, resulting in a large number of fallen leaves. Generally, 70% thiophanate methyl (800-fold solution) or 50% carbendazim (1000-fold solution) can be sprayed for control in the early stage of spring and summer bud germination.

(2) leaf roller moth: it usually occurs in May-August, and can be controlled with 50% propafenone (1000 times) or 20% pyrethroid (4,000 times).

③ Insecticides and oyster scale insects: generally, 40% omethoate (1000 times) or 40% quickkill (1500 times) can be sprayed for control.

2. Where is the main producing area of Dongkui Myrica rubra?

1, Dongkui Myrica rubra is native to Dongao Village, Jiangkou Street, huangyan district, Zhejiang Province. This variety has been planted since 1950s, and was popularized by 1980. At present, its main producing areas are Taizhou, Lishui, Hangzhou, Zhuji, Xianju and wencheng county in Zhejiang Province, and it is a favorite cultivated tree species for fruit farmers.

2. What's the name of Dongkui Yangmei? Dongkui? Because of its large fruit (the weight of a single fruit can reach 20-25g) and rich juice (the juice content reaches 74%), it is the most variety of Myrica rubra in China and even in the world, and it is well deserved? Wang Yangmei? So in the 1970s, a professor from Zhejiang Agricultural University named it? Dongkui? , take? The head of the East? Meaning.