| 蚌壳用作土壤改良剂：对根际和非根际土壤和草地生产力的影响 |
| |
| 作者姓名： | E. &#;LVAREZ M. J. FERN&#;NDEZ-SANJURJO N. SECO A. N&#;&#;EZ |
| |
| 作者单位： | Departamento de Edafologia y Quimica Agricola,Escuela Politécnica Superior,Universidad de Santiago de Compostela,Campus Universitario |
| |
| 基金项目： | Supported by the Government of Spain(No.CTM2005-05922) |
| |
| 摘 要： | Large quantities of mussel shells(66 000-94 000 t year 1),an alkaline material that can be used as a soil amendment,are generated as waste in Galicia,NW Spain.A field trial was carried out by planting different pasture species in a Haplic Umbrisol using a randomized block design with four blocks and six treatments(not amended control or soil amended with lime,finely ground shell,coarsely ground shell,finely ground calcined shell or coarsely ground calcined shell) to compare the effects of lime and mussel shells additions on a soil with a low cation exchange capacity and high Al saturation.The trial was established in March 2007,and samples of plants and soil were collected when plots were harvested in summer 2008(separating the bulk and rhizosphere soil).The soils were analyzed for pH,total C,total N,available P,exchangeable cations,effective cation exchange capacity and available micronutrients.Dry matter yield was measured in all plots and plants were analyzed for nutrients.Application of mussel shells and the commercial lime resulted in an increase in pH and exchangeable Ca and a decrease in exchangeable Al and Al saturation.The stability of pH over time was high.These effects were most noticeable in the rhizosphere.The amendment also had a positive effect on dry matter yield and concentration of Ca in the plant.
|
| 关 键 词： | dry matter production exchangeable Al liming pasture quality soil nutrients |
| 收稿时间： | 29 August 2011 |
Use of mussel shells as a soil amendment: Effects on bulk and rhizosphere soil and pasture production |
| |
| E. &#;LVAREZ,M. J. FERN&#;NDEZ-SANJURJO,N. SECO,A. N&#;&#;EZ.Use of mussel shells as a soil amendment: Effects on bulk and rhizosphere soil and pasture production[J].Pedosphere,2012,22(2):152-164. |
| |
| Authors: | E &#;LVAREZ M J FERN&#;NDEZ-SANJURJO N SECO and A N&#;&#;EZ |
| |
| Institution: | Departamento de Edafología y Química Agrícola, Escuela Politécnica Superior, Universidad de Santiago de Compostela, Campus Universitario, Lugo 27002 (Spain),Departamento de Edafología y Química Agrícola, Escuela Politécnica Superior, Universidad de Santiago de Compostela, Campus Universitario, Lugo 27002 (Spain),Departamento de Edafología y Química Agrícola, Escuela Politécnica Superior, Universidad de Santiago de Compostela, Campus Universitario, Lugo 27002 (Spain) and Departamento de Edafología y Química Agrícola, Escuela Politécnica Superior, Universidad de Santiago de Compostela, Campus Universitario, Lugo 27002 (Spain) |
| |
| Abstract: | Large quantities of mussel shells (66 000--94 000 t year-1), an alkaline material that can be used as a soil amendment, are generated as waste in Galicia, NW Spain. A field trial was carried out by planting different pasture species in a Haplic Umbrisol using a randomized block design with four blocks and six treatments (not amended control or soil amended with lime, finely ground shell, coarsely ground shell, finely ground calcined shell or coarsely ground calcined shell) to compare the effects of lime and mussel shells additions on a soil with a low cation exchange capacity and high Al saturation. The trial was established in March 2007, and samples of plants and soil were collected when plots were harvested in summer 2008 (separating the bulk and rhizosphere soil). The soils were analyzed for pH, total C, total N, available P, exchangeable cations, effective cation exchange capacity and available micronutrients. Dry matter yield was measured in all plots and plants were analyzed for nutrients. Application of mussel shells and the commercial lime resulted in an increase in pH and exchangeable Ca and a decrease in exchangeable Al and Al saturation. The stability of pH over time was high. These effects were most noticeable in the rhizosphere. The amendment also had a positive effect on dry matter yield and concentration of Ca in the plant. |
| |
| Keywords: | dry matter production exchangeable Al liming pasture quality soil nutrients |
| 本文献已被 CNKI ScienceDirect 等数据库收录！ |
| 点击此处可从《土壤圈》浏览原始摘要信息 |
| 点击此处可从《土壤圈》下载免费的PDF全文 |
|
