In order to achieve high yields, crops should pay attention to the proportion of nutrients in fertilizer application. This is a very important fertilization technique. The currently promoted formula fertilization meets the requirement of balanced fertilization. At present, the ratio of nitrogen to phosphorus is 1:0.5. In some areas, due to the application of diammonium phosphate for many years, the content of soil available phosphorus increases, and the technicians appropriate the ratio of nitrogen and phosphorus for fertilization. Downgrading to 1:0.4 is also scientific. For soils with severe phosphorus deficiency, it is also appropriate to adjust the ratio of nitrogen to phosphorus to 1:0.7. The purpose of adjusting the proportion of nitrogen and phosphorus is to balance nutrients, so that the proportion of nutrients more in line with the nutritional requirements of the crop and the characteristics of the soil for fertilizer, improve the utilization of fertilizers, thereby increasing crop yields and improving product quality. Royal Jelly is also called Bee Milk. The fresh royal jelly is slightly ropy milk paste substance; it is the excretive mixture of nutrition gland and maxilla gland of the head of little worker bee. The worker bees use this to feed the 1-3 days` worker bee larva and drone larva, 1-5.5 days` queen bee larva and queen bee in the oviposition period. The royal jelly is the biologic product containing very complicated active elements which contains almost all the nutrition elements required by the growth of the human body. Royal Jelly Royal Jelly,Natural Royal Jelly,Healthy Royal Jelly,Organic Fresh Royal Jelly Easy Food (Jiaxing) Co., Ltd. , https://www.jxeasyfood.com