摘要
通过盆栽和大田试验,探讨脱硫副产物及以其为原料制作的土壤调理剂对提高桉树生长量的作用,结果表明:(1)适量施用脱硫副产物可有效提高桉树生长量,将其制作成土壤调理剂施用,可进一步提高产量。(2)供试物量过高或过低会导致肥效下降而引起桉树生长量下降。(3)适量施用供试物可有效防治因桉树微量元素供应不足导致的缺素垂梢病。
Based on pet experiments and field trials, the effects of desulphurization byproduct on eucalyptus nutrition and its mechanism were studied in this project, and the results showed that： （1） Supplied with fit content of desulphurization byproduct, the calcium concentration in eucalyptus leaf and stem increased properly, and the nutrition absorption was also promoted, so desulphurization byproduct promoted eucalyptus growth and increased the biomass of eucalyptus. （2） Unfit content of desulphurization byproduct application led to too high or low calcium content in eucalyptus leaf and stem, which weaken the effect of nutrition absorption, so it brought on the effect of fertilization decreased. （3）Using desulphurization byproduct could prevent and cure tip-droop disease that induced by lacking trace element.
出处
《桉树科技》
2007年第1期1-7,共7页
Eucalypt Science & Technology
基金
广东省科技计划项目(2003C32107
2006B40101010)的部分内容
