How much is a gingko sapling now? How to grow?

Ginkgo biloba is a deciduous tree of Ginkgo biloba family. The ginkgo tree grows slowly and has a very long life. Under natural conditions, it takes more than 20 years from planting to bearing ginkgo fruit, and it takes 40 years to bear a large amount of fruit. Therefore, some people call it "Gongsun tree", which means "the male species and the sun gets food." it is the old birthday boy in the tree, with ornamental, economic, medicinal and other values. More ginkgo trees are planted in the city, so how much is a ginkgo seedling now? How do you plant it?

How much is a ginkgo sapling? (price Summary in 2018)

(1) the price of ginkgo trees

Price of 0.5-1.5 meters ginkgo tree: 0.5-2 yuan per tree

Price of 3 cm ginkgo tree: 8 yuan per tree

Price of 8 cm ginkgo tree: 120 yuan per tree

Price of 10 cm ginkgo tree: 160 yuan per tree

Price of 15 cm ginkgo tree: 350-600 yuan per tree

Price of 18 cm ginkgo tree: 500-1000 yuan per tree

Price of 20 cm ginkgo tree: 8-1500 yuan per tree

Price of 25 cm ginkgo tree: 2600-8000 yuan per tree

Price of 30 cm ginkgo tree: 7000-22000 yuan per tree

Price of 40 cm ginkgo tree: 50000 yuan per tree

Price of 50 cm ginkgo tree: 28000-32000 yuan per tree

(2) the price of grafted ginkgo trees

2cm grafted ginkgo tree price: 4 yuan

Price of 3 cm grafted ginkgo tree: 6 yuan

8cm grafted ginkgo tree price: 75 yuan

Price of 10 cm grafted ginkgo tree: 150 yuan

15cm grafted ginkgo tree price: 350-650 yuan

Price of 18 cm grafted ginkgo tree: 650-700 yuan

20cm grafted ginkgo tree price: 800-1800 yuan

25cm grafted ginkgo tree price: 2000-4500 yuan

Price of 30 cm grafted ginkgo tree: 4500-8800 yuan

Price of 40 cm grafted ginkgo tree: 4000-4500 yuan

Price of 50 cm grafted ginkgo tree: 6000-7000 yuan

II. Planting techniques of Ginkgo biloba

Planting techniques of Ginkgo biloba there are mainly three methods of raising seedlings of Ginkgo biloba: sowing, cutting and grafting.

(1) cultivation of sowing seedlings

1. Seed collection

The mother trees with fast growth, vigorous growth, good pollination, large seeds, full kernels, high yield and stress resistance and bearing fruit in the natural state of 30 ~ 100 years old were selected as seed collection mother trees. When the Testa of Ginkgo biloba changed from green to yellowish or orange-yellow, it was harvested. The wholesale seeds of Ginkgo biloba collected from trees did not complete the development of their embryos, and it took more than 60 days of stratification or post-ripening to achieve physiological maturity. Sand storage method: after mixing 1 seed with 2 parts of river sand, pile it indoors. The water content of the sand is generally 50% of the saturated water content, the spreading thickness is 60 cm, it is turned once in 20 days, and it should be properly sprinkled with water evaporation.

2. Seed modulation

Procedure: retting → Testa softening, ripening →, mashing Testa, rubbing →, rinsing, removing impurity, →, and grading.

3. Accelerating budding

In order to achieve the goal of uniform, fast, uniform, complete and strong seedling emergence, make seedlings have a longer growth period, and improve seedling yield and quality, sprouting must be carried out before sowing.

4. Sowing seeds

(1) nursery site selection

According to the biological characteristics of Ginkgo biloba, the nursery land with flat terrain, leeward and sunny, deep and fertile loam, sandy loam and good irrigation and drainage should be selected. The soil is too sticky, prone to waterlogging or saline-alkali soil is not available.

(2) Land preparation

The nursery should be turned deeply in late autumn or early winter, and the suitable depth should be 40 cm. 10,000 kg of miscellaneous fertilizer or 200kg ~ 250kg of fully mature cake fertilizer and 75kg ~ 100kg of superphosphate should be applied every 666.67 square meters, and the soil will be weathered after freezing in winter. diseases and insect pests decreased significantly in the following year. The second ploughing was carried out in late February of the following year, and the bed was made after fine raking. Jiangsu ginkgo seedling bed was 120 cm wide, 30 cm ~ 35 cm high and 35 cm wide, and then seedling finishing was carried out.

(3) Seedling bed disinfection

It needs to be disinfected after leveling. Add 6 ~ 12 liters of water with 2 kg of 30% ferrous sulfate solution or 50 ml of formalin per square meter and pour it evenly on the bed 7 days before sowing. If the underground pest is serious, 5 kg of phoxim or carbofuran is applied every 666.67 square meters when making the bed.

(4) sowing

After germination, the seeds can be sown in the middle and late March. The sowing method adopts horizontal trenching and on-demand sowing, the ditch depth is 3 cm ~ 4 cm, the row spacing is 20 cm ~ 30 cm, and the plant spacing is 10 cm ~ 15 cm. Put the seeds flat, radicle down, cover soil 2.0 cm ~ 3.0 cm, then cover with clean straw, and then keep the bed moist. The sowing rate varies with the seed grain size, generally producing 15000 ~ 20 000 seedlings per 666.67 square meters, with an average of about 50 kg of seeds.

(2) grafting of ginkgo biloba seedlings

The wholesale grafting of ginkgo biloba can keep the excellent characters of the mother tree, preserve and propagate the fine varieties, dwarf the tree, facilitate close planting, expand the cultivation range of varieties, and blossom and bear fruit earlier. The key of ginkgo biloba seedling grafting is scion collection and the selection of grafting methods in different periods.

1. Scion collection

The time of scion collection in spring is generally within 10 to 20 days before Ching Ming Festival, and the grafting task can be collected in advance, and the scion should be collected from the adult mother tree of a fine single plant or from the ear nursery.

2. The period of grafting

In principle, the price of ginkgo biloba can be grafted all the year round, and the methods used in different grafting periods are also different. Spring grafting should be split grafting, skin grafting, wood bud grafting, double tongue grafting, bag grafting, abdominal grafting and so on. The grafting time was from 5 days before germination to leaf spreading, and the survival rate of grafting was the highest. That is, grafting within 15 days before Qingming Festival to 5 days after Qingming Festival. Square bud grafting and square short branch grafting can be carried out in the growing season. Autumn grafting is suitable in late August, and the main methods are square bud grafting, woody bud grafting, split grafting, skin grafting, sticking grafting, abdominal cutting grafting and so on. According to the production practice of the main producing areas of Ginkgo biloba, the grafting method suitable for local conditions is generally selected.

In Xing'an County and Lingchuan County of Guangxi Autonomous region, combined with the characteristics of longer growth period of local ginkgo biloba (generally one month longer than that of ginkgo biloba in various provinces of the Yangtze River Basin), the method of short spike bud grafting based on tender branch grafting was selected. This kind of grafting method, sown in the same year, grafted in September of that year, spent the winter with surviving buds, and cultivated to the fallen leaves of ginkgo biloba in the following year can be planted in the nursery. The time to cultivate ginkgo biloba grafted seedlings is only 2 years, and the speed is fast, but the grafting position is low (usually 10 cm away from the seedling rhizosphere), which belongs to the short dry type, easy to deviate the crown and is not easy to form an ideal fruiting tree. It was not until the next three or five years that a large number of results were obtained.

In Taixing, Jiangsu and other places, the time of cultivating grafted seedlings is longer, which usually takes 4 to 6 years, and the investment of cultivating seedlings is larger. The grafting site is 1.5 ~ 2 meters away from the rhizosphere of seedlings, and the result is faster after grafting. It is easy to form a higher yield, and fruit, wood and leaves are harvested at the same time. Tancheng in Shandong, Pi County in Jiangsu, ANLU and Dawu in Hubei all use the grafting methods of Xing'an in Guangxi and Taixing in Jiangsu.

Time: 2019-03-18 Click: