施用化肥对松树造林成活率的影响*
Effect of Fertilization on the Survival Kate of Pine Afforestation
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摘要: 马尾松(Pinus massoniana Lamb.)、湿地松(Pinus elliottii Engelm)属主根发达、侧根和须根较少树种,提高其造林成活率是是人们长期努力的目标.影响造林成活因素很多,包括树种特性、苗木状况及其运输过程、造林技术水平与方式.及占重要地位的气候条件等1.对某一地区而言,土壤也是影响成活率的主要条件2.对植树前施肥的肥料种类和用量与造林成活率的关系.其正式研究报道尚为鲜见.结合国家造林项目(NAAbstract: The survival rate of fertilization trial of masson pine and slash pine plantation was investigated.The results show that under the same planting condition,the survival rate of masson pine with N(urea)fertilization before planting would be decreased by 8%,and that of slash pine decreased by2%～8% There was no effect on the survival rate by P,K appli-Cation.
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