Ginkgo biloba is the oldest seed plant in relict plant. All other plants in this category have become extinct. It is called a living fossil and was born hundreds of millions of years ago. Ginkgo biloba is sparse, and a century-old tree is rare. The following is what I have done, I hope it will be useful to you.

Characteristics of ginkgo biloba

Ginkgo tree, also known as ginkgo tree, grows slowly and has a very long life. Under natural conditions, it takes more than 20 years from planting to fruiting, and it takes 40 years to produce a large number of fruits. Therefore, it is nicknamed "Gongsun Tree", which means "edible for the masses". It is the birthday star on the tree and was called "Ginkgo biloba" in ancient times. Ginkgo tree has ornamental, economic and medicinal value, and its whole body is "treasure". Ginkgo biloba is the oldest gymnosperm left after the Quaternary Glacier Movement and one of the most precious tree species in the world, so it is regarded as a "living fossil" in the plant world and has ornamental value.

Ginkgo planting techniques

1. Land selection

Once planted, Ginkgo biloba has a long life and benefits for a long time, so it is very important to choose the land. Ginkgo biloba is a light-loving tree species, so it is advisable to choose sunny slope with small slope as afforestation site. The requirements for soil conditions are not strict, but neutral or slightly acidic soil with thick upper layer, moist and fertile soil and good drainage is better.

plant

*** 1***. Rational allocation of pollination trees

Ginkgo biloba is a dioecious plant. In order to obtain high yield, pollination trees should be arranged reasonably. Male plants with the same variety and flowering period as female plants were selected, and the ratio of male to female plants was 25 ~ 50: 1. The configuration mode adopts 5 or 7 square centers, and can also be configured at the four corners.

***2***. Reasonable close planting.

Ginkgo biloba grows slowly in the early stage, and close planting can improve the land utilization rate and increase the yield per unit area. Generally, the plant spacing of 2.5 ×3m or 3 ×3.5m is adopted, and 88 or 63 plants are planted per mu. After the lines are sealed, they are transplanted. First, move a row from the plant spacing to the plant spacing of 5×3m or 6×3m, with 44 plants or 365,438+0 plants per mu. Every few years, transplant one row from the original row spacing to the plant spacing of 5×6m or 6×7m.

***3***. Seedling size

Improved varieties and strong seedlings are the material basis for early fruiting and high yield of Ginkgo biloba, and seedlings with height-diameter ratio greater than 50: 1, taproot length of 30cm and even lateral roots should be selected for planting. In addition, seedlings must have strong terminal buds, full lateral buds and no pests and diseases.

***4***. Planting time

Ginkgo biloba is mainly sown before the leaves are released in autumn and spring, and in autumn of 10 ~ 1 1 month, which can make the roots of seedlings have a long recovery period and prepare for the germination of aboveground parts in the next spring. Planting before germination in spring is not as good as planting in autumn because the aboveground parts germinate quickly and the roots don't have enough time to recover.

***5***. Planting method

Ginkgo planting should dig planting nests according to the designed plant spacing, and the specifications are 0.5 ~ 0.8× 0.6 ~ 0.8 meters. After digging the nest, the topsoil should be filled up and fermented fertilizer containing calcium superphosphate should be applied. When planting, the roots of the seedlings will naturally stretch and align with the front, back, left and right seedlings, and then fill in the form while being practical. The planting depth is 2 ~ 3 cm from the soil to the original soil of seedlings, and the buried depth of seedlings should not be too deep. After planting, root water should be poured in time to improve the survival rate.

The value of ginkgo biloba

Greening environment: Ginkgo biloba is recognized as a pollution-free tree species and the most ideal tree species for ornamental greening. Planting ginkgo in parks, gardens, residential quarters, roadsides and urban greening can be described as "once and for all". The greening effect of ginkgo trees is good and the speed is slow. It takes two years for small trees to have good results, and it takes three to five years for big trees to recover and play their beautiful functions.

Purify air: it has the functions of pollution prevention, fireworks prevention and dust prevention. A certain proportion of ginkgo trees can be planted in industrial areas, residential areas, towns, densely populated areas and rest areas. To form ginkgo forest areas and forest belts, naturally purify the air, reduce the content of suspended solids in the atmosphere and improve air quality.

Soil and water conservation: Ginkgo biloba has the functions of water conservation, windbreak and sand fixation, and soil and water conservation. In areas where deforestation, soil erosion and sandstorm erosion are serious, ginkgo shelter forest, shelter forest, road shelter forest, bank protection forest, beach shelter forest, sand prevention forest, etc. Planting is to maintain soil and water and improve the ecological environment. 1996 Puding County, Guizhou Province takes planting ginkgo biloba and developing ginkgo biloba industry as the road to get rid of poverty and become rich. The soil erosion in this county is serious, even a handful of soil should be planted with a corn, and the ground is covered with carboniferous azithromycin particles. In order to prevent soil erosion, farmers replanted ginkgo biloba, which not only improved the ecological environment, but also generated economic income * * * Ginkgo biloba leaves were sold to processing plants * * *. Nowadays, Ginkgo biloba has been regarded as a new way to get rid of poverty and become rich in Dabie Mountain, Daba Mountain and Yimeng Mountain. Planting ginkgo biloba leaves not only improves the ecological environment, but also forms an industrial economy, which is multi-faceted.

Pest control: Ginkgo biloba can kill crop diseases and insect pests, especially cotton, spider mite, peach aphid and Chilo suppressalis. Planting ginkgo around agricultural areas is the natural enemy of crop pests and protects crops.

Adjust the temperature: Ginkgo tree has the special function of being warm in winter and cool in summer. In midsummer, the palm will feel cold when touching the trunk of ginkgo tree, and it will feel hot when touching other trunks. According to the measurement, in midsummer, when the direct sunlight reaches 40.20℃, the temperature under ginkgo tree is 35.30℃, and the temperature difference between the temperature and the shade of ginkgo tree is 4.90℃, while the temperature difference between weeping willows is only 2.30℃, and the temperature adjustment ability of ginkgo tree is more than twice that of willow tree. Therefore, the construction of ginkgo forest area and ginkgo forest belt will form a scale, which will cause the climate of the community and have a good impact on regulating the temperature and improving the microclimate of farmland and residential areas.

Ginkgo formula

1, Ginkgo roast chicken:

Materials:1* * The weight of new hens is about 1250g * *, ginkgo * *, 30g of Shaoxing wine, ginger 15g, and salt 10g.

Features: "Ginkgo Chicken" is a traditional dish in Qingchengshan area of Chengdu. Qingcheng Mountain has beautiful scenery and is famous for its quietness. The food here is delicious and unique, known as the "four wonders", that is, "Dong Tian tribute tea". The tea quality is excellent, the juice color is clear and the tea taste is mellow; Two unique "Ginkgo Roast Chicken" soups are thick and white, and the chicken is extremely delicious; Three unique "Qingcheng pickles" are crisp and fresh, with a long aftertaste; Four unique "Dong Tian milk wines" are rich but not strong, sweet but not greasy.

According to legend, "Ginkgo Roast Chicken" was created by Taoist in Shi Tian Cave of Qingcheng Mountain. It is said that two or three hundred years ago, there was an old Taoist priest in Qingcheng Mountain who became thinner after a long illness. There is a ginkgo tree on Qingcheng Mountain, which has a history of more than 2500 years. Its ginkgo is big and strong. A Taoist priest in Tianshidong once picked ginkgo from this tree many times, cooked soup with tender hens and stewed it with slow fire.

Give it to the Taoist priest, and his condition will get better, and he will soon be healthy and refreshed. Since then, "Ginkgo Roast Chicken" has become a famous specialty in Rongcheng and even the whole Sichuan area.

Operation:

*** 1***, slaughter the chicken, remove the hair and viscera, and wash it with clear water. Cut the belly of the chicken along its back with a knife. Don't cut. Boil in a pot with cold water until it boils. After taking it out, wash it with clear water and remove the blood powder for later use.

***2***, break the shell of Ginkgo biloba, put it into the boiling water pot, take it out, peel off the shell and wash it.

***3***, put the whole tender hen into the pot, add water * * * to submerge the chicken * *, add ginger slices and Shaoxing wine, cover and cook for about 30 minutes until the chicken is half cooked and the soup thickens, then pour into a big casserole, add ginkgo and salt, cover and cook for about 15 minutes.

Features: light yellow color, thick white soup, fresh and tender chicken, slightly sweet ginkgo, soft and ripe and palatable.

The key: be sure to use a fat hen to get rid of dirty blood and wash it clean. When cooking, first, the chicken will be crispy with strong fire, and the soup will be thick, then put it in a casserole and simmer.

2. Ginkgo taro paste

Ingredients: [Ingredients]: half a catty of clean meat, three ounces of ginkgo, half a cup of sugar, four spoonfuls of lard, three spoonfuls of sugar [Accessories]: 1/3 cups of water, two spoonfuls of sugar and one spoonful of corn flour.

Operation: * * *1* * * Lifu taro is washed, sliced and steamed, steamed for about 40 minutes, and kneaded while it is hot. * * * 2 * * Peel ginkgo, boil it in boiling water for 15 minutes, take off your clothes, drain the water, fry it in boiling oil for a while, and add three spoonfuls of sugar to catch it evenly. * * * It is best to marinate overnight. * * * 3 * * Put a tablespoon of lard, put down the sugar of ginkgo and pickled ginkgo and stir-fry for a while. Add a glass of water and cook until the remaining water is about 3/4 cups. Put the ginkgo and the boiled ginkgo in a bowl respectively. * * * 4 * * Add three spoonfuls of lard, put down taro and half a cup of sugar and stir-fry until the sugar is dissolved, then add the remaining ginkgo and stir-fry in water, and evenly pick it up. * * * 5 * * After the taro is cold, if it feels smooth, you can put it in a grinder and grind it until it is smooth. Put it in a deep dish and add ginkgo. Steamed when eating, boiled and poured on taro and ginkgo. Whether or not to provide juice is optional. ?