Fast Poplar Planting Technology Guide
The planting and management of fast-growing poplar includes eight tasks including site preparation, cutting, irrigation, fertilization, weeding, weed removal, pruning, pruning and pest control. First, the arable land: The depth of comprehensive ploughing is appropriate to 25-30 cm. Second, cutting: First cuttings with water soaked for more than 24 hours. If there is no water when soaking, change the water frequently. The spring cutting is generally conducted in March-April and does not exceed the April 5th Ching Ming Festival. The cutting method is adopted in line. Keep the first bud of the upper incision flat on the ground. In order to prevent the incision from drying out, the upper end of the cutting can be covered with soil, and the lower incision is closely connected with the soil. III. Irrigation: After cuttings, it is necessary to timely infuse water 1-2 times. The method of irrigation is open-channel irrigation of open channels such as furrow irrigation and flood irrigation. Fourth, fertilization: 1, base fertilizer: generally used organic fertilizer or phosphate fertilizer and nitrogen fertilizer mixed use. Fertilization should be deep, 15-20 cm is appropriate, combined with site preparation, organic fertilizer 3000 kg per acre. 2, top dressing: seedlings into the seedling period after the establishment of root and fast-growing period should be top dressing. In the first 1-2 years, artificially open the ditch, sprinkle fertilized material, and then cover soil and Pinggou. After the trees have grown up, use a single-sided plow to plow a shallow ditch on each side of the tree line, apply half of the fertilizer evenly into the ditch, and apply the other half into the ditch on the other side. V. Loose soil: Forest land not intercropped by forest farmers shall be promptly weeded and loose soil. The standard for loose soil shall be 15 cm in depth. 6. Picking buds: The time for picking buds should be before the lateral branches are not lignified. That is, the length of lateral branches does not reach 20 cm. Try to do early picking and picking, and be careful not to hurt the leaves when picking. 7. Pruning and nurturing: Seedlings with damaged or broken top shoots; timely cutting the top back to the top of the next complete strong seedling 1 cm, so that this lateral bud develops into the main shoot. This work began after planting or cutting and until the tree trunk formed an 8-meter high-pass straight trunk. Eight, pest control: 1, underground pests: There are mainly earthworms and tigers. In the epidemic period of diseases and insect pests, poison baits (100 times trichlorfon plus wheat bran) are used to prevent and control each day in the evening. 2, leaf pests: in the first half of June - mid-August, spraying methamidophos, 1000 times liquid or monocrotophos 600 times or 1500 times killing pine to control. 3, pupae dry pests: in May-July, even spray 1000 times liquid methamidophos 2000 times speed kill 2-3 times, can also be used 1000 times solution of methamidophos perfusion wormhole or venom worm inserted into the wormhole . 4, leaf disease: spraying 700 times the solution of thiophanate-methyl or carbendazim 10000 times 1-2 times. China Agricultural Network Editor