Lotus root is a vegetable that everyone likes very much and is rich in various nutrients. Fertilization is an important technical link in the cultivation of lotus roots. What should be paid attention to when applying lotus root fertilization?
The application rate of lotus root fertilizer is determined by the fatness of the soil itself. Usually, 1,500-2500 kg of livestock manure or manure is required per acre of paddy field, and 3000-3500 kg is required if green manure is applied. The application of manure can effectively reduce the rust spots attached to the cockroach itself and improve the quality of the lotus root. In addition, deep-water polders are prone to phosphorus deficiency, so in addition to the above organic fertilizer, 30-40 kg of calcium phosphate should be added as a base fertilizer.
According to the growth and development period of lotus root, it usually takes 2-3 times of topdressing: the first time when the vertical leaves begin to appear, after cultivating and weeding, 750-1000 kg of livestock manure is applied per acre; the second top dressing has been in the leaves. When there are 5-6 pieces, about 1000 kg of livestock manure per acre is applied; the third top dressing is carried out when the terminal leaves appear. At this time, the crusting starts, which is called chasing fertilizer, and 1500 kg of livestock manure per acre. , cake fertilizer 30-50 kg can be.
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L-serine, as a basic amino acid of protein, is widely used in medicine, food, cosmetics and other industries. At present, the global market demand for L-serine is 10000t / A. L-serine is a non essential amino acid, which is an important precursor involved in the synthesis of intracellular biological substances such as purine, pyrimidine and phospholipid. L-serine is a raw material for compound amino acid infusion, and can also be used as a raw material for light chemical industry . In addition, L-serine is widely used in advanced cosmetics at home and abroad because of its special wettability and moisture retention
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