Answer: The fertilization of saplings (1 to 3 years) should be based on the principle of thin application. After planting a viable shoot, the first-to-second-fertilizer was grown to a length of 5 cm, and the fast-acting nitrogen fertilizer accelerated the effect of phosphate fertilizer and water-based feces. Every 15 days ~ times, each strain of urea 5 ~ 10 grams, 5 grams of superphosphate, with 3 to 5 kilograms of water manure application. After each month of September, fertilize one time with nitrogen, phosphorus and potassium. Each time, apply 10 grams of urea per plant, 10 grams of superphosphate and 10 grams of potassium sulfate with appropriate concentration. Disclaimer: Some articles in this website have been transferred from the Internet. If you are involved in third party legal rights, please inform this website. phone ZHEJIANG SHENDASIAO MEDICAL INSTRUMENT CO.,LTD. , https://www.sdsmedtools.com