Selection and extraction of seed bamboo

It is advisable to choose the two-year-old culm base diameter of 2-3 cm bamboo as seed bamboo, often several bamboo near the growth of the same whip, can be dug up together. Selected to stay strong 2-3 plants, into a bush planting bamboo afforestation, high survival rate, prolonged fast, can be early into the forest.

Density of planting and keeping mother bamboos

When planting, 50-70 plants per mu for whole plant transplantation; 70-90 plants per mu for whip transplantation. After the forest is established, 400-450 mother bamboos are kept per mu. Therefore, every year, we keep about 100-120 new bamboos per mu, and cut off the same number of bamboos.

The treatment of bamboo whip

Early bamboo type to stay mother bamboo, bamboo whip is shallow and dense, the chance of jumping whip is more, it is inconvenient to dig a trench to bury the whip, can be used to bury the whip by laying soil. With pond mud, river mud and other combined fertilization in late autumn into winter paved the ground in the bamboo forest. Early bamboo high-yield forests, the soil requirements and high-yield moso bamboo forests are similar to the requirements of slightly acidic, deep, loose, fertile, well-drained and moist, gentle slope. The selection of afforestation sites should start from the climate, soil and topography, and the environment should be mild and moist. According to the experience of Zhejiang Lin'an and other places, the afforestation of thunder bamboo should mainly consider the following conditions comprehensively.

(1) climatic conditions

The introduction of early bamboo should first consider whether the climatic conditions of the location are similar to the place of origin. Early bamboo origin Lin'an, Yuhang, Fuyang. The climate around Deqing is characterized by: annual precipitation of 1250-1600 mm; average annual temperature of 15.4 ℃, the average temperature in January 3.2 ℃, the average temperature in July 29.9 ℃, the extreme low temperature of -13 3 ℃, the extreme high temperature of 40.2 ℃, the annual greater than 10 ℃ of the activity of the cumulative temperature of 5100 ℃ or so; the frost-free period of 235 days or so; the annual number of hours of sunshine 1850-19 days; the number of days of sunshine 1850-19 days; the number of days of sunshine 1850-19 days. The annual frost-free period is about 235 days; the annual sunshine hours are 1850-1950 hours. Therefore, in the south of the Yangtze River, north of the South Ridge, the average temperature in January is not less than -5 ℃, the extreme low temperature is not less than -15-20 ℃, the annual rainfall is not less than 1000 millimeters or so of the mountains and hills, plains and river beaches can be introduced.

(2) soil conditions

Early bamboo afforestation sites require loose, fertile soil. Breathable, especially deep soil, breathable, water retention performance is good U sandy soil, sandy loam is good, ordinary red soil, yellow soil, yellow red soil is also suitable for cultivation, the depth of the soil is required to reach more than 50 centimeters; PH value of 4.5-7.0, slightly acidic or neutral is preferred; the water table is preferred to less than 1 meter.

(3) Topographic conditions

Mainly elevation, slope direction, slope position and slope. Topography is an indirect ecological factor. Different topographic conditions can make differences in sunlight, temperature, moisture and nutrients, and have an impact on the good or bad management activities, thus affecting the shoot period, yield and quality of early bamboo shoot forests. Therefore, when choosing afforestation sites for early bamboo forests, topographic conditions cannot be ignored.

Early bamboo prefers humidity, is afraid of stagnant water, likes light and is afraid of wind. Therefore, it is best to choose the southeast and south slopes of the early bamboo afforestation sites that are windward and sunny and have sufficient light; however, the climate of most places in Fujian is relatively milder than its origin, so it is also good to choose the east, northeast and north slopes. Slope of 5 ° - 15 ° of low hills and gentle slopes is preferred, the slope level of the lower slopes is preferred, there are sufficient water sources can be utilized in the place is more suitable. Cultivation is not suitable for high mountain windbreaks, low-lying waterlogged places and places with high water table. The advantage of early bamboo shoots, high economic benefits, in order to raise the early bamboo shoots, give full play to the advantages of early bamboo, choose sufficient light, wind and sunny slopes is very important.

(4) Other conditions

The selection of forestation sites for early bamboo is based on climate conditions. In addition to soil conditions and topographic conditions, the sales market of bamboo shoots, transportation and scale of operation should also be considered. Generally speaking, the early bamboo afforestation sites should be selected in the suburbs of large and medium-sized cities and areas with convenient transportation and close to the market. Can be adapted to local conditions, choose the house in front of the house, low hills and gentle slopes, fields, land can, foot of the mountain, creeks, convenient transportation, easy to manage the place, to do the right place suitable for bamboo, the development of early bamboo production can be a success.

Early bamboo cultivation characteristics

Early bamboo, including early bamboo, a variety of feeder bamboo and pointed bamboo, are scattered small and medium-sized bamboo shoots, their spring bamboo shoots, whip shoots, high yield, quality is better than the moso bamboo. Due to the late formation of shoots and their small shape, they cannot harvest asparagus.　　Cultivation of early bamboo types is basically the same as that of moso bamboo, only the characteristics are described as follows: 1, the choice of seed bamboo and digging up the appropriate selection of two-year-old culm base diameter of 2-3 cm of bamboo as seed bamboo, often several bamboo near the growth of the same whip, can be dug up together. Choose to stay strong 2-3 plants, into a bush planting bamboo afforestation, high survival rate, prolonged fast, can be early into the forest.　　2, planting bamboo and keep the density of the mother bamboo planting, transplanting the whole plant 50-70 plants per acre; move the whip of 70-90 plants per acre. After the forest is established, keep 400-450 mother bamboos per mu. Therefore, keep about 100-120 new bamboos per mu every year and cut off the same number of bamboos.