First, lack of fertilizer is mainly due to the lack of mature soil. When the pool was built, mechanical operations were used. The topsoil of the field was pushed to the side of the field or low depressions. If the seedlings were planted on unripe raw soil, the plants often grew poorly. 2 Insufficient application of organic fertilizer. Some farmers do not apply organic fertilizer at all in the new Putian, but rely solely on chemical fertilizers. Some use organic fertilizer, but most of them are raw chicken manure, raw manure, raw cow dung, etc. It takes months to provide effective mineral nutrition for lotus root growth. 3 Fertilizer nutrition is not complete. Many farmers use only superphosphate, diammonium phosphate, ammonium bicarbonate, urea, and other nitrogen and phosphorus fertilizers in newly established paddy fields. Basically, other fertilizers do not need to be used, which can easily lead to plant-deficient physiological diseases. Second, scientific fertilization points 1 a large number of application of decomposed organic fertilizer. Generally, more than 3,000 kg of decomposed organic fertilizer should be applied per 667 square meters when the pond is being built. In the absence of organic fertilizers, chemical fertilizers, mineral fertilizers, and microbial fertilizers containing a large number of elements such as nitrogen, phosphorus, and potassium, as well as a variety of intermediate and trace elements, can be applied in a reasonable manner. 2 Industrious facilities, topdressing topdressing. It is necessary to build the new crops in Putian early, the number of fertilizers should be large, and the amount of fertilizer should be large. Generally, 3-4 times of topdressing can be carried out during the vigorous growth of plants, and the rate of manure excrement 1000-1500 kg per 667m2 is used. For Putian where the deficiency of fertilizer has occurred, besides the diligent application and top dressing, it is also necessary to pay attention to the spraying of disease-preventing agents to control the spread of infectious diseases. Natural Hovenia Dulcis Extract,Semen Hoveniae Extract,Raisin Tree Extract,Hovenia Dulcis Thunb Extract NANJING ZELANG MEDICAL TECHONOLOGY CO., LTD , https://www.hawfitness.com