With the increase of the outside temperature, the spring vegetables need to increase the amount of fertilizer, it is easy to appear de-fertilizer, leading to premature plant failure, so can be combined with water every 7 days or so once a chemical fertilizer.
Topdressing should grasp the principle of “a small number of times†and avoid excessive burning of roots caused by one-time excessive application of chemical fertilizers. Topdressing should pay attention to balance, increase the amount of phosphorus and potassium fertilizers in order to improve the resistance of plants. For each acre, 15-20 kg of potash fertilizer or 20-30 kg of NPK compound fertilizer can be topdressed; alternatively, 20-30 kg of urea and 300 kg of rotten chicken manure can be alternately used. In addition to soil dressing, using 0.2%-0.3% urea or potassium dihydrogen phosphate solution for foliar dressing, can also quickly and effectively replenish nutrients to meet the needs of vegetable growth.
Functional oligosaccharides refer to oligosaccharides that are difficult or impossible to be digested and absorbed by the human body and have special physiological effects on the human body. Its sweetness is generally only 30-50% of that of sucrose, and it has physiological functions such as low-calorie, anti-caries, prevention and treatment of diabetes, and improvement of intestinal colony structure. Due to the special physiological functions of functional oligosaccharides, it becomes a nutrient and health care product. A new generation of food-effect raw materials that integrate diet and therapy. It is a new functional sugar source that replaces sucrose and has a wide range of uses and application prospects. Common functional oligosaccharides include: xylo-oligosaccharides, fructooligosaccharides, galacto-oligosaccharides, isomaltose, raffinose and so on.
XOS, GOS, FOS, IMO, Raffinose, oligosaccharide
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