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研究了江西永丰第四纪红壤湿地松施肥试验林第３年追肥的生长效果施Ｐ或配合Ｎ、Ｋ，树高和全林底面积当年生长较对照分别增长８～２４％、２４％～７５％；造林时施以Ｐ为主的肥料，其后效在第３年仍有极显著的表现，在ＧＬＤ、ＤＢＨ、Ｈ、ＣＷ等总生长量指标上，分别较对照超出２２％～４３％、５４％～７７％、３４％～４５％、２９％～５１％；同等剂量时追肥比基施在第３年的后效要差、一次基施比基追或追各半为优。氮肥在一次追施量较大时，对生长有明显负效应，而将同等剂量的Ｎ１００ｋｇ／ｈｍ２分两次追肥。则负效应很小。钾肥对湿地松生长没有明显效应。
The results showed that the growth of Pinus elliottii on fertilization experiment in the third year in the fertilization experiment of Pinus elliottii in the Quaternary Red Soil in Yongfeng of Jiangxi Province increased by 8-24%, 24% ~ 75% of the total fertilizers. When P was applied in the afforestation, the effect of fertilizer was still significant in the third year. The total amount of growth of GLD, DBH, H and CW exceeded 22% ~ 43 %, 54% -77%, 34% -45%, 29% -51%. After applying the same dosage, the after-effect of top dressing was worse than that of the base application in the third year. Nitrogen fertilizer in a large amount of chase, the growth of a significant negative effect, while the same dose of N100kg / hm2 divided into two top-dressing. The negative effect is small. Potassium has no obvious effect on the growth of P.soi.