摘要
通过盆栽试验播种山合欢(Albizia kalkora(Roxb.)Prain)、山毛豆(Tephrosia candida DC.)、菊芋(Helianthus tuberosusL.)种子,研究容重分别为1.11g·cm-3、1.50g·cm-3、1.88g·cm-3的土壤对种子出苗率、出苗势和幼苗株高、根长及生物量的影响。结果表明,随着土壤容重的增大,3种植物种子的出苗率、出苗势均下降,幼苗的株高降低,根长缩短,地上、地下生物量减少。在容重大的土壤中出苗较好的为山毛豆,而从幼苗的生长情况看,在容重大的土壤中生长较好的为山合欢和菊芋。
The pot experiment was used to investigate the effect of different soil bulk density on the seedling rate, seedling energy, plant height, root length and biomass of Albizia kalkora （Roxb.） Prain, Tephrosia candida DC., and Helianthus tuberosus L. Three treatments 1.11 g.cm^-3, 1.50 g.cm^-3 and 1.88 g.cm^-3 were set in the experiment. The results indicated that the rate of emergence, the energy of emergence, the plant height, root length and biomass decreased with the increase of soil bulk density. The emergence rate of T. candida was higher than the other two plants in high soil bulk density. The growth of seedling of A. kalkora and H. tuberosus were better than T. candida in high soil bulk density.
出处
《广东园林》
2009年第4期22-25,共4页
Guangdong Landscape Architecture
基金
佛山市顺德区大良街道滑坡山体复绿示范项目(D1081226
BE(2009)-019)
中马长青(广州)绿化有限公司项目(D1063016)
关键词
土壤容重
出苗率
幼苗生长
Soil bulk bensity
Rate of emergence
Seedling growth
