污泥有机肥对欧洲猪草初期生长的促进作用。濒临灭绝的棕榈树

IF 1.2 Q4 ENVIRONMENTAL SCIENCES
Ana C. C. Oliveira, R. Viani
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引用次数: 1

摘要

目的探讨我国特有棕榈树的过度采伐问题。来自巴西大西洋森林热点的槟子科(arerecaceae)和城市污水处理产生的污泥的归宿都是人类活动造成的严重环境问题。为了找到这两个问题的解决方案或替代方案,我们旨在研究污水污泥有机肥(SSOF)的增加率对edulis初始生长的影响,SSOF由污水污泥和固体废物堆肥产生。方法在8 L (21 cm高× 24 cm顶径× 20.5 cm底径)盆栽中,分别添加0、62.5、125和250 kg·m−3的SSOF与沙子混合,每盆种植1株毛竹幼苗,评估幼苗高度、茎粗相对生长率(RGR)、生物量、根冠比和地上部大量营养元素(氮、磷、钾、钙、镁、硫)浓度与施肥水平的关系。我们还评估了不同施肥水平下株高和株径随时间的关系。结果在120 ~ 250 kg·m−3范围内,毛竹株高、茎粗rgr、生物量积累和N、P含量与基质中SSOF水平呈正相关。我们的研究表明,SSOF可以进一步用作污水污泥处理的替代方案,并有助于edulis的培养,从而有助于其保护。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Sewage sludge organic fertilizer as a promoter of initial growth of Euterpe edulis Mart., an endangered palm
Purpose The overharvesting of the endemic palm tree Euterpe edulis Mart. (Arecaceae) from the Brazilian Atlantic Forest hotspot and the destination given to the sludge produced from urban sewage treatment are both serious environmental issues caused by human activities. In order to find solutions or alternatives for both the issues, we aimed to investigate the effect of increasing rates of a sewage sludge organic fertilizer (SSOF), produced by composting sewage sludge and solid waste, on the initial growth of E. edulis. Methods We mixed sand with 0, 62.5, 125, and 250 kg·m−3 of SSOF in 8 L (21 cm height × 24 cm top diameter × 20.5 cm base diameter) pots and then planted a seedling of E. edulis in each pot. We assessed the seedlings’ height and stem diameter relative growth rate (RGR), biomass, root to shoot ratio, and shoot macronutrient (nitrogen, phosphorous, potassium, calcium, magnesium, and sulphur) concentrations in relation to fertilizer levels. We also evaluated the relation between plant height and diameter over time for each fertilization level. Results We found that height and stem diameter RGRs, biomass accumulation, and N and P shoot concentrations of E. edulis were positively related to SSOF levels between 120 and 250 kg·m−3 in the substrate. Conclusions Our study demonstrates that SSOF can be further used as an alternative to sewage sludge disposal and contribute to E. edulis cultivation, and, hence, its conservation.
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来源期刊
CiteScore
2.10
自引率
26.70%
发文量
0
审稿时长
13 weeks
期刊介绍: The International Journal of Recycling of Organic Waste in Agriculture is an open access journal that publishes high-quality solicited and unsolicited articles, in all areas of Recycling of organic waste including: -Solid waste reuse in agriculture -Waste water reuse in agriculture -Utilization of organic wastes: composting -Ways to reduce, reuse and recycle organic waste -Social and economic impact of reduction, reuse and recycling of organic waste in agriculture -Methods to raise the public awareness of recycling and reuse of organic waste in agriculture -Organic waste utilization in animal and poultry nutrition -Urban food waste composting
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