Zhuliu is a new willow tree variety that has been developed in recent years. It has been observed through trials that bamboo willow is currently the best man-made high-yielding fast-growing forest species in terms of its salt-tolerance, growth rate, and unit-area input ratio. However, bamboo willow is a new species, the market has a limited number of seedlings, the seedling price is relatively high, and the initial investment is relatively large, which restricts the rapid development of Zhuliu industry. Cologne Industrial Co., Ltd. has practically summed up Zhuliu sowing afforestation techniques, per mu. The investment of only 100 yuan in seedlings will greatly reduce the upfront investment of growers.
I. Selection of Bamboo Willows Afforestation Sites
Zhuliuxi is resistant to salinity and alkalinity, and the afforestation land can choose saline soil, tidal flat, Jiangxin Island, Hexinzhou, marshland, wetland, and idle land where the soil pH is below 8.5, salt content is below 15,000ppm, and the soil is not deficient in moisture. Forest margins, and non-basic farmland or areas that can be artificially irrigated, with annual rainfall above 1000 mm.
Second, the bamboo willow straight afforestation finishing
The finishing of afforestation sites is mainly to remove weeds, deep turn, apply base fertilizer, select a reasonable soil moisture content; local leveling, to do 25-30cm sorghum in some saline-alkaline lands with high groundwater level, preparation for plugging seedlings .
Third, the preparation of fine bamboo willow cuttings
1. Introduction of Zhuliu Species It is recommended to introduce the asexual clone of pure Coriaria bamboo strips and choose 0.3-1.2cm diameter coarse; the diameter of the thick range of species grows robustly, lateral buds are full, the degree of lignification is high, and there are no pests. The survival rate of cuttings is greater than that of thicker ones. Branches with a thickness less than 0.3 cm are easily rotted and have low seedlings, while rooting rates higher than 1.2 cm are also relatively low and take longer to germinate. When long-distance bamboo sticks are introduced, they must be transported with moisturizing packaging. Due to the difference in temperature between the north and the south, it is introduced to avoid the climatic conditions in some areas, and seedlings of seed plants germinate to affect the survival rate. According to the specific conditions of the planting place, it can be introduced in advance, and then the shaded area will be preserved in a shaded place. When the local climatic conditions are suitable, afforestation will be carried out. Especially when planting in the northern region and introducing southern seedlings, special attention should be paid. 2. The cutting length of cuttings of bamboo sticks is 5-10cm, and there are more than 3 full-filled buds on each cutting. About 0.3-0.6cm in thickness, the cutting length is generally about 6cm; when the thickness is about 0.7-1.2cm, the cutting length is about 10cm. Cut with a sharp scissors, the incision is smooth, does not break the skin, does not split, does not hurt the bud. The upper incision is cut flat and the distance from the top of the first bud is more than 0.5cm to ensure that the first bud on the upper end is complete. The lower incision is selected at the point below the last one bud of the cutting and cut into a flat mouth; it can be bundled according to different diameters and sizes. Pay attention to the polarity and be prepared for the next step of drug treatment.
3, cuttings under the incision of the drug treatment
Using Cologne Industries () special rooting agent for rapid treatment for 1 second, the rooting rate can reach over 95%. Fourth, bamboo willow afforestation implementation 1, the suitable time for bamboo afforestation in the north should choose the spring of 10 days after the frost to Zhu Liuzhi branch before germination this time period; South should be stable in the outside world minimum temperature of 5 degrees above zero When the bamboo strips do not germinate. This period of time should be selected over the winter mature branches, high survival rate, strong growth, to the north of the autumn leaves can grow about 3 meters high, up to 4 meters in the south.
2. Zhuliu Afforestation
Under the condition of better lyricism, the cutting will be performed with the cutting of the bamboo sticks while performing the chemical treatment. After the treatment of the medicine, the bamboo cuttings should be immediately inserted into the prepared land. Pay attention to soil looseness when drilling straightly. The hard land needs to use auxiliary tools to insert holes; the first axillary bud above the line depth just leaks out of the ground, and the two buds in the lower part of the cutting are all inserted into the soil. Be careful not to reverse the polarity. The cuttings should be inserted in different plots according to the thickness of the strips. The cuttings must be immediately filled with water; if it is raining, they need not be filled with water. According to the different ground temperature, the cuttings generally begin to take root in 7-20 days; under the condition of better management, the rooting rate can reach more than 90%. After one month, the bamboo willow plant height is about 5cm, two months Willow growth height up to 60-80cm, when the growth height of up to 4--5 meters high.
3, bamboo willow afforestation density a, cultivation of large-diameter timber forest per line 300-500 lines. b. If the transplanting, sale or pulp pulp production and biomass energy raw materials are used in the later period, the annual seedlings can be cultivated with 10,000 lines, and the two-year old trees can be lined with 2000--6000 lines. Fifth, Zhuliu line after afforestation management and protection 1. Water management If the soil moisture is poor after dipping, it must be immediately irrigated; later depending on the soil moisture content to make up for water in time, a long time after the rain waterlogging, immediate drainage.
2, weeding
Weeding should follow the principle of not affecting the growth of saplings. Large-scale in-line afforestation and chemical weeding should select herbicides that do not affect Salicaceae.
3, fertilization according to soil fertility, soil structure and other factors, as appropriate, the principle is a small number of times;
4, the growth of tube protection with the above methods Zhu Liuzhi afforestation, the basic cuttings germination as a single plant, grows vigorously, when the length grows to more than 1 meter, erased the individual branches of the plant to send the top, so that their nutrient concentrated supply growth center;
5. Pest control pests and bamboo pests Man-made forest pests and diseases prevention and control principles are to prevent light-treatment and serious diseases. In summer, there are locusts, blue-leaved leafhoppers, carapace, cabbage caterpillars, and bridge-building insects. Corresponding pesticides are on the market. Special attention should be paid to the damage of seedlings to the growth centers of seedlings during the seedling period.