摘要
通过野外小区实验,研究了NPK肥对铜尾矿上苎麻(Boehmeria tricuspis)生长的影响。结果表明,苎麻在纯尾矿中生长缓慢,单独施用NPK肥或牛粪能促进茎干的纵向和横向生长(P<0.05),但对叶片数量并无显著影响(P>0.05);NPK+牛粪配合施用促使苎麻生长显著加快。叶片数目与植株高度相关性分析表明,与NPK单施和NPK+牛粪这两种施肥配置方式相比,牛粪单施有利于苎麻将叶子数量优势转化为植株高度优势。NPK+牛粪和单施NPK可促进植株茎干纵向和横向生长协同进行。总体而言,NPK+牛粪配施显著促进苎麻在铜尾矿上生长,对尾矿植被重建和恢复有很大应用前景。
A field trial on Cu tailings at Tongling,Anhui Province,was conducted to evaluate the effects of NPK fertilization modes on the growth of Boehmeria tricuspis.The results showed that B.tricuspis growed slowly on pure copper tailings.Seperate addition of NPK fertilizer or cattle manure significantly improved lognitudinal and transverse growth of B.tricuspis stem （P 0.05）,but had no significant effects on its leaf number （P 0.05）.Addition of NPK fertilizer and cattle manure significantly promoted the growth of B.tricuspis.Correlation analysis between leaf number and plant height indicated that,compared with seperate addition of NPK fertilizer and addition of NPK fertilizer ＋ cattle manure,seperate addition of cattle manure was in favor of B.tricuspis’s translation leaf number advantage into plant height advantage.It could be concluded that use of tolerant ramie （B.tricuspis） together with NPK fertilizer ＋ cattle manure might be a cost-effective method for revegetation of mine tailings.
出处
《井冈山大学学报（自然科学版）》
2010年第6期132-136,共5页
Journal of Jinggangshan University (Natural Science)
基金
国家"863"科研计划项目(2006AA06Z359)
关键词
铜尾矿
苎麻
植被恢复
NPK肥
copper tailings
Boehmeria tricuspis
revegetation
NPK fertilizer
