Beer barley is a special barley for brewing beer. Beer is rich in nutrients and known as "liquid bread", which has a large market demand. There are many varieties of barley at home and abroad for winemaking, mainly including Early Maturity No.3, Azao No.3, Humai No.4, Zhoumai No.1, Zhejiang Leather No.1, Salt 75-21, Mengkel, Ante, Si Si system and so on. In order to make the barley quality meet the beer quality standard production requirements, in addition to strengthening barley variety breeding, we must also improve the cultivation techniques. 1 appropriate sowing, appropriate dilution sowing beer barley should be mastered appropriate sowing. The best sowing date for early maturing barley No. 3 is before and after the beginning of winter (in the middle and late March in the northeast region). According to different mouths, the planting period should be properly arranged. The principle is early sowing of paddy fields and proper sowing of dry land. Beer barley should be properly thinned and the seed germination rate must be guaranteed to be above 90%. When sowing, the fertilization level and high soil fertility, sowing rate of about 10kg per 667 square meters, sowing late and low level of land fertilization, the sowing rate per 667 square meters is about 12.5kg, pay attention to uniform sowing. 2 Improve fertilization technology and control nitrogen use rate According to the analysis of fertilization level of early-maturing barley No. 3, if more than 6000kg per hectare is produced, the total fertilization amount in the whole growth period is equivalent to 300kg/ha of pure nitrogen; if 3750~4500kg/ha are required, Pure nitrogen 150 ~ 225kg. Beer barley in the fertilization technology should focus on the application of base fertilizer and seedling fertilizer, control the middle and late fertilization. Farmyard fertilizer and phosphate fertilizer should be used as base fertilizer and Miaofei. Spring fertilizer is suitable for quick-acting nitrogen fertilizer. Miao Fei is generally applied before the 3 leaf stage, spring fertilizer must be applied early, depending on the seedling situation, little or no application of fertility. With spring sowing in the northeast region, two-sided fertilization can be used. 3 Harvesting beer barley in proper period has strict requirements on the harvesting period. Generally, it is the best harvest when the grain is normally dehydrated, the stems, leaves and sheaths are chlorosis and yellow, and the harvest is early. Harvest at this time, the grain contains less protein, can improve the quality of wine, premature or late harvest, will affect the grain weight, grain color and grain quality. Beer barley should be harvested, harvested, promptly threshed and dried. Avoid stacking after harvest or without sundry, so as to avoid fever "steamed" embryos, reduce the germination rate, poor color, affect the quality. In addition, in the cultivation process, it is necessary to improve the drainage and irrigation system and do a good job of drainage, anti-staining and drought prevention. Beer barley in addition to the requirements of varieties with high yield, disease resistance, resistance, the appearance of the grain requirements for light yellow, thin, shiny, disease-free specks, no musty and other odors, but also requires high germination, germination Strong potential, high leaching rate, uniform grain, high grain weight, moderate protein content (more than 40g of barley grain weight, protein content of 9% to 11%; multi-row barley grain weight of not less than 34g, protein content of 10% to 12%).
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