First, seedbed preparation The nursery should choose sandy loam with sunny leeward and convenient drainage and irrigation. The seedbed is 1 meter wide and the length depends on the terrain and needs. The seedbed lays 10 cm thick gravel and coarse sand, and a mixture of loess, fire-burning earth and fine sand, which is sieved on top, is 70%, 20%, 10% thick and 10-15 cm thick, compacted slightly. The seedbed ditch communicates to facilitate drainage. Second, cutting time æž¸æž æž¸æž can be cut in all seasons, inserted in spring from March to March, summer in May to June, autumn in August to September is appropriate. The main factors are spring and summer, and they can be planted in the fall or next spring, and the survival rate is high. Third, select the cuttings Cuttings should be selected from 1 to 2 year old mother plants that grow well and have no pests. Cutting time is in the morning or on cloudy days. Prevent exposure of branches. Align the bases of the twigs and wrap the moisturizer with wet gauze or wet toilet paper and bring it back to the room. Fourth, cutting treatment The collected semi-lignified green shoots were cut into 15 to 16 cm cuttings with 4 to 5 axillary buds. The base of the cuttings was cut into wedges 0.5 cm below the shoots with a knife, and the upper part was cut into flats 1.5 cm above the shoots. Take care not to tear the epidermis and damage the axillary buds. Each cutting should have 4 to 5 leaves, and each leaf should be cut in half to reduce water evaporation. Then divide the size of the cuttings and divide them into small ones. Place the base of the cuttings in a 500 mg/L aqueous solution of naphthylacetic acid for 5 seconds, or soak for 1 hour in an aqueous 100 mg/L ABT1 rooting powder developed by the Chinese Academy of Forestry. Remove it and let it dry before you can insert it on the seedbed. Do not leave it too long to avoid affecting the cutting. Five, cutting specifications When cutting in a seedbed, first divide the cuttings by thickness. Spring row spacing is 10 cm 15 cm, summer can be more appropriate. Before the insertion, the shallow ditch should be opened on the seedbed, either straight or obliquely. Insert 6 to 8 centimeters deep and squeeze enough water to set the roots. Sixth, seedbed management After inserting, take a shady shed to shading, and light transmittance should be 30% to 40%. At the same time, strengthen the management of fertilizer and water to cultivate strong seedlings. Spray water 1 day after morning and evening cuttings, thin cloudy should be sprayed to ensure the seedbed is moist, and pay attention to prevent waterlogging. 15 days after insertion, new roots can be made. After rooting, the number of water sprays and the amount of water should be appropriately controlled to prevent root rot. When the temperature is too high, the shade must be covered to cool down, wind barriers must be added around, and the shade coverings should be covered as early as possible; the rain should be drained in time to prevent stains. The spring planting seedlings can be planted in the nursery with mud in the autumn of that year, and the summer planting will be planted in the spring of the following year. Imported Bio-based Coating Additives Coating auxilliaries, also known as paint accessories, the department of the preparation of coating auxiliary materials, can improve coating performance, promote the formation of coating film. There are many kinds, including drying agent, toughening agent, emulsifier, thickening agent, pigment dispersing agent, defoaming agent, levelling agent, anti-skidding agent, matting agent, light stabilizer, mildew proofing agent, antistatic agent (see plastic assistant), etc., among which the largest amount is drying agent and toughening agent. At present, the research of coating auxilaries, to be used for water emulsion paint auxilaries as the focus. Imported Bio-Based Coating Additives,Dicyclohexyl Phthalate Auxiliaries,Nitrocellulose Coatings Auxiliaries,Powder Coatings Auxiliaries Xingbang High Molecular Materials Co., Ltd. , https://www.chemicaladditive.com