I. Selection, selection and preparation of land 1. The former is best made of soybean, corn and wheat. Potatoes and beets are not suitable for flax. The reason is that soybean rhizobia's nitrogen fixation increases soil fertility, corn has more manure, soil is loose, and the soil moisture is good. It is suitable for flax planting. Since flax seedlings can survive in the soil for 4 to 5 years, and the damage to flax is heavy, 4 to 5 years of rotation should be carried out. 2. The land to be used for selection and land preparation should be selected from the land with relatively flat land, fertile land and well-drained land, and the land preparation for flaxseed is mainly for the purpose of absorbing precipitation and ensuring water for seedling emergence. In the spring, soil preparation is mainly based on maggots. It is best to use smashing, hoeing, fertilizing, and sowing for one-stop operations to achieve the purpose of drought protection. Land preparation standards must achieve leveling, smashing, fine, broken, and full sowing. Second, seed treatment and sowing 1, seed treatment linen seeds must be used for cleaning the election machine to select clean seeds. The germination rate of the varieties that should be selected is not less than 97%, and the cleanliness rate is not less than 95%. For the control of seedling blight, anthracnose and other diseases, use 50% of Fujimite double seed weight of 0.3% and 0.2% of 50% multi-bacterial seed weight mixed and wet seed dressing. Seedling drying in 4 to 5 days, Promote seed ripening. 2. Suitable sowing date for sowing date from April 10 to April 20, sowing premature flax is easy to encounter drought in the fast growing period. The length of the flax stem is not increased, resulting in a decrease in production; late in the day is not conducive to the formation and accumulation of fibers, resulting in Ma low rate, poor quality. 3, planting linen is dense planting crops, seedlings up to 15 million to 18 million, seedlings designed to broadcast 130 ~ 135kg. Seed can be drilled repeatedly narrow row sowing, inter-row distance 7.5cm, can also be used diagonally sowing, broadcast depth 2 ~ 3cm, timely suppression after sowing. Note: The single-mouth flow test should be carefully done before sowing, so that the single-head flow rate standard of the sowing machine is the same, so that the row spacing is even, so as to achieve the uniformity of the stem diameter, improve the quality of the purpose. Third, the fertilization of flax is a straight root crop, most of the root system in the upper soil layer, to absorb the cultivated layer of nutrients. The seedling period of the flax is short, and the seedlings grow rapidly before and after bud emergence, which is the peak period of fertilizer requirement. Therefore, using good fertilizers is very important for flax growth. The design of fertilization for linseed is NS-6P5-6K2. Nitrogen fertilizer and potash fertilizer must be applied deep, with a depth of about 8cm. Do not avoid excessive depth, which will affect the use of the early stage. It is also possible to use 10kg of special linen fertilizer. According to the flexible application of soil fertility, the amount of flax, phosphorus, potassium, and nitrogen fertilizer should be moderate, too much greediness, late maturity, and even lodging, affect the quality of flax. Fourth, the field management of flax is planted in close planting crops, can not shovel spasm, can only use the method of loosing grass to eliminate field weeds and cut off the capillary, reduce soil moisture evaporation, drought protection. Flax seedlings are short-lived, and we must seize the opportunity to eliminate weeds in time. Otherwise, it will cause grass bullies and later greed green lodging. When harvesting, we must pick the seedlings in the grass and use it to work hard, resulting in a reduction in production. Weeding formula: Fields are mainly grasses: 10.8% of the grass cover can be 0.5 liters / pound or 12.5% ​​pour the net 1.5 liters / pound. Gramineae and broad-leaved grass mixed: 10.8% Gaifu 0.5 liters / 垧 + dimethyl tetrachlorobenzene 0.5kg / 垧. During the application period, the height of the flax plant was about 15 cm, the seedlings were 2 to 3 leaves, and the weeds had 3 to 5 leaves for uniform treatment of the stems and leaves in the field. The major pests of linen include armyworms, grasshoppers, etc., and timely prevention and control. The agent is: enemy killed 10-15 ml/mu. V. Harvest Due to the special use of flax, the flax harvest must be harvested at the ripening stage. The main features are: First, one-third of the Ma with the Machi turned yellow-brown; Second, one-third of the flax turns pale yellow Third, one third of the lower leaves of the stem fall off. Any field with the above characteristics can be harvested, and the harvest should focus on machinery or manpower, and be completed within 2 to 3 days. The harvest should be carried out on a sunny day. After pulling and drying, the drying method is usually carried out by three methods: drying on a tile, drying on a fan, and drying on a small circle. Then bundled into 10 ~ 15cm diameter small bundles, threshing centralized storage, timely drying of grains. During the period from pulling the hemp to selling hemp, it is necessary to prevent flax from injury, heat, rain and mildew and affect the quality and quality of flax.
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