在由粉砂员岩坡积母质发育而成的硅质黄红壤上，经不同施肥量及配比12个处理、不同施肥时间10个处理5年试验研究表明，杉木幼林施氮肥和钾肥无显著效应，施磷肥效应显著。造林当年及第3年各施钙镁磷肥50g/株，与对照比较，杉木幼林地径、胸径、树高、蓄积分别增加15％、18％、15％、53％，取得生长效应与经济效益的最佳水平。配比施肥效应以造林当年与第3年每株各施尿素30g、钙镁磷肥，100g最佳，但配比施肥效应仍以磷肥效应为主。施肥时间以造林当年与第3年隔年施肥效果最佳。 On the siliceous yellow-red soil developed from the siltstone parent product of silty sandstone, the fertilization rate and the ratio of 12 treatments and the different fertilization time of 10 treatments for 5 years showed that there was no significant difference in nitrogen and potassium fertilizer in young Chinese fir plantations Effect, phosphate fertilizer effect significantly. Compared with the control, the seedling diameter, DBH, height and accumulation of young Chinese fir increased by 15%, 18%, 15% and 53% respectively in the year of reforestation and in the third year of reforestation. The growth effect and economic benefit were obtained The best level. The ratio of fertilization effect in the year of reforestation and the third year of each plant urea 30g, calcium magnesium phosphate, 100g best, but the proportion of fertilization effect is still the main phosphate fertilizer effect. Fertilization time to reforestation year and the third year of the next year fertilization best.