Biomass production and heavy metal content of Rosmarinus officinalis grown on organic waste-amended soil

被引:50
作者
Cala, V
Cases, MA
Walter, I
机构
[1] Inst Nacl Invest & Tecnol Agraria & Alimentaria, INIA, Dept Med Ambiente, Madrid 28080, Spain
[2] Univ Autonoma Madrid, Fac Ciencias, Dept Quim Agricola Geol & Geoquim, E-28049 Madrid, Spain
关键词
degraded soil; organic waste composts; aerial biomass and oil production; heavy metal; nutrient uptake;
D O I
10.1016/j.jaridenv.2005.01.007
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 [生物信息与计算生物学]; 0713 [生态学];
摘要
This paper reports the effects of organic waste compost on Rosmarinus officinalis growth in pots containing degraded soil. Dried biosolid compost (B-C) and municipal solid waste (MSW-C) were mixed with soil at doses of 0, 20 or 40 Mg ha(-1). The plants were harvested before anthesis and biomass production and rosemary oil production determined. The macronutrient, micronutrient and heavy metal contents of the aerial parts of the plant were analysed to determine nutritional status and heavy metal accumulation. All the biowaste treatments increased soil fertility. Biomass production increased significantly when plants were grown in the biowaste-treated soils. No significant differences were seen among the different treatments with respect to oil production. Plants grown on amended soils showed a general improvement in their macro- and micronutrient status, yet their heavy metal (Pb, Cr and Ni) contents did not increase significantly. The concentration of heavy metals found in the leaves would not significantly increase their transfer from the soil to humans via the food chain. Biowaste composts can be safely applied to degraded soils at a dose of 40 Mg ha(-1) without the risk of adverse environmental effects. MSW-C is better applied at a dose of 20 Mg ha(-1). (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码:401 / 412
页数:12
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