First, nursery (1) Time for raising seedlings: Bagging and seeding should be completed as early as possible in spring to ensure that seedlings at the time of afforestation are high quality seedlings over 100 days old. (B) the choice of nursery: Select leeward sunny, both close to the water, but also relatively close to the afforestation, a well-drained place as a nursery. After the nursery is selected, it will be reduced to a number of small pods as a seedbed, and the husk should be kept flat. (3) Seedling raising methods: (1) Preparation of nutritious soils: Raw soils, loess slopes or non-cultivated loess soils are used. This soil is free from germs. In order to avoid the soil being too viscous, one-third of the clean river sand may be blended, and the gravel or plant residues may be sifted and sifted. (Moisture content is handcuffed into groups, and loosening is preferred.) Seedlings in Chinese pine containers are contraindicated in the use of mature soil (cultivated soil) as raw materials, but they cannot even add organic fertilizers without decomposition. In addition, pine needles can promote the growth of Chinese pine, so it is better to use the soil of Pinus tabulaeformis as raw material. The raw materials required for the oriental seedlings of container seedlings are not stringent, but if the soil is borrowed on the spot, the whole bed is bagged and the soil still needs to be screened, and a suitable amount of decomposed organic fertilizer is added, and the mixture is fully stirred and 3% to 5% of sulfuric acid is used. Ferrous is sterilized. (2) Bagging: Carry out the whole process. There are two issues to be noted when bagging: First, the bag must be filled, and the bottom pocket of the container is absolutely forbidden; second, the arrangement of the containers must be the same, and the top of the container is placed into a plane after each stack, so that the thickness of the cover soil can be consistent. Neat and tidy. A 40cm walkway (work lane) should be set aside for the seedlings. There are two ways to put the cup, that is, the ground type: the bed is leveled, the container bag is discharged well, and each bed can be surrounded with soil or sand; the underground type: the seedbed is deepened into the same depth as the container bag or slightly larger than the container. The bag is flat and the bottom is flat, and the bag can be discharged inside the basket. (3) Seeding: Before sowing, soak the seed with warm water (two open and one cool) for one day, remove and germinate with 0.5% potassium permanganate solution for 30 minutes to germinate, wash once a day with fresh water, 7-8 days of seed Break the mouth, you can type. One is to plant seeds under the first seedling; the other is that the seeding holes should not be too small or too deep, and the sowing amount should be 5 to 6 grains per bag. Otherwise, the seeds will squeeze each other, affecting the seedlings and even rot. Third, the cover soil should not be too thick. If the clay must be mixed with sand, cover with fine soil after sowing, and the thickness will exceed 1cm. (4) Management: Management can be divided into two phases. Pre-emergence management, soaking seeds that do not germinate only about 15 to 20 days, and the germinating seeds are about 7 to 12 days old. The seeds before germination are in the germination stage and require sufficient moisture, a certain temperature and air, and water spray regulation. The soil temperature prevents the surface temperature from being too high and ensures that the seed can be successfully unearthed. If the water source is lacking, the method of covering can be used. The cover is preferably made of cereal straw, followed by wheat straw. Plastic film coverage, although beneficial to warming and moisturizing, but easy to cause sunburn destroy seedlings. When the seedlings begin to emerge, the coverings are removed one after another and a 1% to 3% ferrous sulfate solution is sprayed prior to emergence. After the seedlings are unearthed, the number of water sprays should be appropriately reduced, and the water spray should be sprayed once every 3 to 5 days. Into the rainy season, seedlings can be planted. Second, afforestation (i) Afforestation time: It can be conducted from the rainy season to September, and the rainy season is best. (b) Afforestation methods: Water should be poured once before lifting. When raising the seedlings, the containers should be arranged in order, and the soil should be removed from one end of the seedlings, the container bags should be removed one by one, and gently loaded into the basket for transport to the forestation site. Do not shake off the nutritious soil or damage the seedlings. Seedlings destined for forested land can be placed in a cool place in the forested land if they are not planted for a time. In the rainy season and autumn of the year before afforestation, fine soil preparation is performed. Container seedlings are suitable for planting in small holes. When digging fish scale pits, the slope surface of the hole surface should be reversed from that of the original slope surface to increase the amount of rainwater interception. When planting seedlings, dig a pit a little deeper than the nutrient pod on the slope one-third of the pit bottom, put the container seedlings into the pit, fill in the fine soil around them, use down-to-earth, and plant the depth to the depth of the top of the container bag 1cm It is appropriate. The small fish scale pit is planted with 1 nutrition cup per pit. Large fish scale pit planted two nutrition cups, to grasp the depth of planting and planting hole position, shallow or location by the pit outside the edge are unfavorable to survive, too deep or planted in the bottom of the pit is also easy to cause rain erosion. 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