Evaluation of Mehlich 3 for Extraction of Copper and Zinc from Irish Grassland Soils and for Prediction of Herbage Content

Autor:	George J. Mullen, Ronan Courtney, D. Brennan, B. Coulter
Rok vydání:	2008
Předmět:	geography geography.geographical_feature_category Chemistry Pentetic acid Extraction (chemistry) Soil Science chemistry.chemical_element Soil classification Zinc Copper Grassland chemistry.chemical_compound Environmental chemistry Soil water Agronomy and Crop Science Oil shale
Zdroj:	Communications in Soil Science and Plant Analysis. 39:1943-1962
ISSN:	1532-2416 0010-3624
DOI:	10.1080/00103620802134743
Popis:	The objective of this study was to determine how the extractant Mehlich 3 (M3) compared with other methods currently used in Ireland for determination of copper (Cu) and zinc (Zn) in soils. Samples from eight different mineral soil types, four of sandstone/shale and four of limestone origin, were analyzed for copper and zinc using M3 and conventional extractants. Herbage samples were taken from the soils and analyzed for Cu and Zn. Mehlich 3 results showed good correlation with ethylenediamine‐tetraacetic acid (EDTA)– and diethylenetriamine‐pentaacetic acid (DTPA)–extractable Cu and Zn. Inclusion of soil properties in multiple regression models improved the coefficients of determination. All extractants were equal in their ability to predict Cu and Zn herbage content. Differences between sandstone/shale and limestone soils in relation to herbage content were also found, with the better relationship found in sandstone/shale soils.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c3a735590c2e4c52e4d2040d74b68804 https://doi.org/10.1080/00103620802134743 Zobrazit plný text záznamu