Polyploid Poplar Poplar Cultivation Techniques
First, land preparation. The machine farmland with deep-turning depth of 25-30 centimeters in autumn is used, and more than 3,000 kilograms of base fertilizer per acre is used. Make noodles to be broken, flat, and clean. The oysters are uniform and uniform, and the snoring should be solid to facilitate irrigation. Covering with plastic film cuttings can improve seedling rate. Second, picking seedlings and cuttings. Should be used for one year without pests and diseases, strong growth of seedlings of flat stems for cuttings. Spike thick 0.5-3 cm, length 14-17 cm, with 3-5 robust buds. The cuts should be flush with the cuts, and the lower cuts should be horseshoe shaped. The cuts should not be split. Chopped cuttings should be stored immediately and reduce direct sunlight and avoid air drying. Third, cuttings. It is advisable to cut in spring. The nursery cuts and inserts the line spacing 60 centimeters to pull the line, then uses the cutting cone or the iron ridge shuns the line to loosen the earthworm to be able to insert. The cuttings were at an angle of 45 degrees to the ground, 1-2 buds were exposed on the ground, and 6000 plants were planted per acre. Each acre of cultivated land should be controlled with a density of about 450 plants, with a spacing of 1-6 meters and a plant spacing of 1 meter. The cuttings should be soaked with fresh water for a day and night before cutting. No matter whether it is inserted dry or wet, the seedlings of the cuttings must be directed upwards and not allowed to be inserted backwards, and the buds should be kept flush with the ground. Cuttings of different thicknesses should be divided into beds for cutting. Fourth, watering. After the cuttings, small water dipping method was used to fill the feet. Before the second watering, it is necessary to repair the damaged mantle so as to save water, and then once a week, pour it three times. The second time is to be separated for two weeks and the seedlings are planted and then poured, and then watered once every 10-15 days. After filling the water in September, it will no longer be watered. Fifth, loose soil weeding. After 2-3 times of cutting and watering, conduct a shallow loose soil with a depth of 4 cm. The second loose soil was performed after the fifth watering, when the soil was combined, and the depth was 5 cm. According to the "early, small, except" principle to remove all the weeds in the field, the annual loose soil weeding 4-5 times. Six, pick buds. Shoots should be picked before the lateral branches are wooded.