Hemp is an important economic crop and industrial raw material. In recent years, in the production of hemp, some farmers have failed to master the scientific fertilization technology of hemp, resulting in low yield of hemp. The following is a description of the high-yielding fertilization techniques for bast. The latest research results of the high-yield fertilization technology of ramie from the Chinese Academy of Agricultural Sciences show that high-yield ramie fiber 150-250kg/667 square meters of production must be applied with 30 kg of nitrogen fertilizer, 10.2-23.9 kg of phosphate fertilizer, and potassium fertilizer throughout the growth period. 10.7-24.5 kg. Its application method is: 1. Reapply basal fertilizer. Basal fertilizer is the basis for ensuring that ramie production has sufficient nutrients, and the general application amount should account for 40%-60% of the total fertilizer (mainly farmyard manure). Generally, 1600 kg of urine excrement can be applied per 667 square meters, plus phosphorus and potassium. Fertilizer 15-25 kg. 2, application of fertilizer. The application of top-dressing ramie depends on the length of the growing period. When the amount of topdressing fertilizer is small, the ramie with a short growing period can concentrate 1 topdressing and apply 18 kg of urea per 667 square meters. The topdressing amount is more, if a topdressing application can cause fertilizer loss, it can be divided into two fertilizers. The first time is Qimiao fertilizer, and the amount of fertilizer is less. Apply about 10 kg of urea per 667 square meters to promote Miao Qi. Miao Zhuang, increase the number of effective ramets. The second fertilizer is a long pole fertilizer. When the seedling height is about 60 cm, it is applied before the closure of the line to promote the rapid growth of the hemp plant. Generally, 15-20 kg of urea is applied per 667 square meters. The research on high-yield fertilization techniques of jute shows that: If the average yield is 500kg/667 square meters of pure jute, it needs 25.64kg of nitrogen fertilizer, 16.9kg of phosphate fertilizer and 23.87kg of potash fertilizer. Its application method is: 1, base fertilizer. According to the characteristics of the required fertilizer of jute, the nitrogen, phosphorus, and potassium nutrients in the base fertilizer account for 29.7% of the total nutrients, 57.6% of phosphorus, and 32.7% of potassium. Basal fertilizers account for 50%-60% of the farmyard's income, and the farmyard fertilizer should be applied before turning the land. Every 667m2 can be applied with 1000-1500kg of pig manure or 4000-1 million kilograms of miscellaneous manure. 2, top dressing. The top dressing of jute can be divided into 3 times. For the first time, Miao Fei can be applied for urea fertilizer of 4-5 kg ​​per 667 square meters, and human feces or animal manure can also be used to lightly apply water. The second time after the resumption of Shiwangchangfei, during this period is the most vigorous growth of jute, requires a lot of nutrients, it is necessary to apply more fertilizer, per 667 square meters can be applied urea 5-10 kilograms, potassium chloride 10 kilograms, if added Cake fat 40-50 kg, the fertilizer effect is better. The above fertilizers were top-dressed when the jute plant height was 60-70 cm and 90-120 cm, and the yield increase effect was significant. High-yield fertilization techniques for kenaf If kenaf yields a high yield of 400-500kg/667 square meters, 15-20kg of nitrogen fertilizer, 6-10kg of phosphate fertilizer and 20kg of potassium fertilizer are required for every 667m2. The application method is as follows: 1. Apply basal fertilizer. Kenaf applied basal fertilizer should be farm-based fertilizer, generally use compost, circulatory, human urine excrement, pig calf dung and so on. For every 667 square meters, 4000-5000 kg of mixed fertilizer, 400-500 kg of human and animal manure and 15-25 kg of superphosphate can be applied. 2, seed fertilizer. To promote fast seedling growth, sowing can be applied fertilizer, urea 2-667 kg per 667 square meters can be applied, if there is no phosphate fertilizer in the base fertilizer, available superphosphate 5 kg for seed fertilizer, strong seedlings role. 3, top dressing. Fertilizer can be divided into 2-3 times. The first crop application of Miao Fei, available urea 4-5 kg ​​per 667 square meters, can promote Miao Qi Miao. The second time to apply long rod fertilizer, kenaf grow to 30 cm high is the period of strong absorption of nutrients, the top dressing to be re-applied, the amount of application should account for about 60% of the total amount of fertilizer. Every 667 square meters can apply 5-6 kg of urea, 10 kg of potassium chloride, in order to ensure the growth of kenaf and stem normal development.
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