红松S_(1-0)播种苗施肥配方的研究

Study on fertilizer formula of Pinus koraiensis S_(1-0) sowing seedling

对红松S1-0播种苗进行正交施肥试验,研究基肥、追肥(氮、磷)对苗木生长的影响,探讨苗木最佳施肥配比。结果表明:各肥料因子对苗木生长影响排序为追肥尿素﹥基肥﹥追肥过磷酸钙,促进红松S1-0播种苗木生长最佳肥料用量为每平米以腐熟猪粪2 500 g、过磷酸钙22 g、尿素3 g或腐熟猪粪2 500 g、过磷酸钙22 g、尿素3 g、硫酸钾12 g作为基肥,108 g或78 g过磷酸钙和44 g尿素为追肥,分四次追施。

The effect of base fertilizer,topdressing（ N,P） on seedling growth was researched and nursery stock optimun fertilization ratio was discussed by carrying orthogonality fertilizer test to Pinus koraiensis S1- 0sowing seedling. The result showed that the arrange of the effect of each fertilization factorson seedling growth was topdressing urea base fertilizer topdressing superphosphate. The best fertilizer rate of promoting Pinus koraiensis S1- 0sowing seedling was decomposed pig manure 2 500 g,superphosphate 22 g,urea 3 g or decomposed pig manure 2 500 g,superphosphate 22 g,urea 3 g,potassium sulphate 12 g as base fertilizer per square meter. And it was taken 108 g or 78 g superphosphate and 44 g urea as topdressing which applied for 4 times.