Key points of management techniques for high quality and high yield of ginger

First, select the sandy land with deep soil layer, loose and fertile soil and convenient drainage and irrigation, and avoid continuous cropping. 2. Before soil preparation and basic fertilizer sowing, farm manure 1000, 500 kg per mu, calcium magnesium phosphate fertilizer 50 kg, and compound fertilizer 20 kg should be applied as base fertilizer. After application, ploughing and raking should be fully done. Divide the border into ditches, each with a width of 1 meter and a height of 20 centimeters, and sow ditches across the border. Third, before planting ginger and sowing seeds, put the ginger seeds in the sun for 2 days, then soak the seeds with 2% formalin for 8 hours (pay attention to washing with clean water after disinfection), or soak the seeds with agricultural streptomycin for 7 hours. The suitable sowing time is from the beginning of March to the middle of April, and the sowing specification is generally 0.25 m × 0.4 m, sowing ginger 3500mu 4000 pieces per mu. Fourth, field management 1. Topdressing at the right time. Topdressing at seedling stage is mainly light and light fertilizer, and then heavy topdressing twice, the first time is from early June to early July, when Sun Jiangwang period, is the peak of ginger fertilizer absorption, 20 kg compound fertilizer and 10 kg urea are applied per mu; the second time is from early September to early October, when ginger tuber expands rapidly, 30 kg compound fertilizer and 10 kg potassium chloride are applied per mu. 2. Proper shading and covering. High temperature and strong sunshine in summer are extremely disadvantageous to ginger over the summer, so it is necessary to do a good shade cover. Crops such as corn (2349, 8.00,0.34%) and soybeans (4487, 14.00, 0.31%) can be interplanted on the border or under shade. At the same time, rice straw was covered between ginger rows to reduce ground radiation and increase soil moisture. 3. Water management. Ginger must keep the soil moist during the whole growth period, "horse race water" should be irrigated during drought, and ditches should be drained in time when waterlogging. 5. Prevention and control of diseases and insect pests (1) Control of ginger plague: select disease-free ginger before sowing and disinfect ginger. At the initial stage of the disease, agricultural streptomycin or Yeqingshuang or Bordeaux solution was sprayed every 15 days for a total of 4 times. Seriously diseased plants should be dug up and burned in time, and lime should be sprinkled in the ginger hole to disinfect. (2) Prevention and control of anthrax: methyl topiramate + carbendazim was used at the initial stage of occurrence. (3) Control of stripe borer: trichlorfon + aldicarb was used in the occurrence period.