Ginger cultivation is a good project for farmers to increase their incomes. However, in the production, there is often a phenomenon of rotten ginger death, and Jiangnong cannot solve the problem. There are several reasons for the death of rotten ginger. (1) Jiang Yan disease Mostly caused by seeds and soil, the control did not keep up. The prevention methods are as follows: 1. After sun-harvesting, the ginger is harvested for a few days, and then placed under the condition of 20-30 °C for 7-8 days to promote wound healing, which can reduce the occurrence of ginger blast during storage. 2, soaking seeds choose ginger block fat fullness, bright skin color, fresh meat, hard texture, disease-free ginger for ginger. Before germination, soak seeds with 0.2% borax + 0.5% potassium dihydrogen phosphate + 50% carbendazim 800 times + anti-virus 矾 800 times mixture for 15-20 minutes. 3, to avoid continuous roots of ginger is not developed, continuous cropping stems are small, prone to rot disease, therefore, should be with rice, cruciferae, legume crops for 3 to 4 years of rotation. 4. When the soil is disinfected and soiled, 75-100 kg of quicklime per acre is used for soil disinfection. 5. After the disease is treated, the diseased plants are removed in time, and quicklime is applied in the diseased cavity. The whole field is filled with 500-600 times of anti-virus cockroaches or 72% of agricultural streptomycin. Strictly prevent the irrigation water from the diseased fields from flowing into the disease-free fields. (2) Excessive fertilization and fertilization methods cause damage to the fertilizer Some ginger farmers think that ginger is resistant to fertilizer, and the more fertilizer is applied, the higher the yield. Therefore, blindly re-applying fertilizer, partial application of nitrogen fertilizer, concentrated fertilization, and some even dry application of urea, compound fertilizer, etc., causing fat damage, hemp ginger and severe rotten Ginger dead seedlings. Ginger should be based on the application of mature farmyard manure. Generally, when the land is prepared, 3000 kg of rotten pig manure, 30 kg of superphosphate and 15 kg of potassium fertilizer are used as base fertilizer. When the seedling height is about 30 cm, the fertilizer is applied once per mu. Pig manure water 750 ~ 1000 kg; before and after the summer solstice, when the ginger seedlings are sent to 3 to 4 seedlings, 50 to 100 kg of mashed ash with 300-100 kg of mashed cake, or 1000-1500 kg of pig manure, fertilized back cover A layer of fine soil or soil slag fertilizer; 1000-1500 kg of pig manure per mu and 4 to 5 kg of urea before and after the heat. (3) Waterlogged in the field causes waterlogging Due to the shallow soil tillage layer, the shallow drainage ditch and the white sand soil after the rain, the sediment is not airy, causing waterlogging, and the high temperature and high humidity cause the rotten ginger to die. Prevention method: 1. Before the frost, dig the 35-45 cm deep of the ginger field; at the same time, dig the drainage ditch with the main ditch 55-60 cm deep and the side ditch deep 50 cm, so that the drainage is smooth, the rain stops the ditch, and the planting ditch has no water. Or dark stains. 2. Choose loam and clay loam with deep soil layer, good gas permeability, rich organic matter, strong water retention and fertility, and avoid planting with easy-to-leach white sand. Preservation tubes are swabs with disposable virus sampling tubes to collect DNA tests for disposable nasal flocking sterile medical transport. swabs with disposable virus sampling tubes , to collect DNA tests for disposable nasal flocking sterile medical transport. Jiangsu iiLO Biotechnology Co., Ltd. , https://www.sjiilobiotech.com
