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| Ylivainio, Kari. |
| The low solubility of iron (Fe) depresses plant growth in calcareous soils. In order to improve Fe availability, calcareous soils are treated with synthetic ligands, such as ethylenediaminetetraacetic acid (EDTA) and ethylenediimonobis(2-hydroxyphenyl)acetic acid (EDDHA). However, high expenses may hinder their use (EDDHA), and the recalcitrance of EDTA against biodegradation may increase the potential of cadmium (Cd) and lead (Pb) leaching. This study evaluated the ability of biodegradable ligands, i.e. different stereoisomers of ethylenediaminedisuccinic acid (EDDS), to provide Fe for lettuce (Lactuca sativa L.) and ryegrass (Lolium perenne cv. Prego), their effects on uptake of other elements and solubility in soils and their subsequent effects on the... |
| Tipo: Thesis |
Palavras-chave: Nutrient turnover. |
| Ano: 2009 |
URL: http://orgprints.org/16610/1/mtttiede5.pdf |
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| Uusi-Kämppä, Jaana; Turtola, Eila; Regina, Kristiina; Ylivainio, Kari; Österholm, Peter; Yli-Halla, Markku; Virtanen, Seija; Nuotio, Eeva. |
| Project: Climate change adaptation tools for environmental risk mitigation of acid sulphate soils (CATERMASS) Funding: Life+ Environment policy and governance 2008-C1 Coordinator: Finnish Environment Institute (SYKE) Partners: Geological Survey of Finland (GTK), MTT Agrifood Research Finland, Finnish Game and Fisheries Research Institute (RKTL), Centre for Economic Development, Transport and the Environment, University of Helsinki, Åbo Academi University Action 3: Mitigation methods and their adaptation to changing climate conditions |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Environmental aspects. |
| Ano: 2011 |
URL: http://orgprints.org/19575/1/Uusikamppa.pdf |
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| Uustitalo, Risto; Ylivainio, Kari; Turtola, Eila; Kangas, Arjo. |
| When phosphorus (P) is applied to soils in excess of plant P demand, P accumulation takes place. By means of P fractionation, we studied the fate of P in 35 soils that had received long-term surplus P rates as fox and mink manure P (F&MM-P), considered as a sparingly soluble P source. We compared these data with those from the same soils under a more typical P management, i.e., fields amended with soluble P sources superphosphate and dairy manure (SP+DM). Fractionation of manures according to the Hedley procedure suggested limited solubility of F&MM-P, two-thirds of the F&MM-P being soluble in acid (HCl) only. In mineral soils, surplus F&MM-P accumulated for the most part as HCl-P (poorly available), whereas in organic soils accumulation... |
| Tipo: Journal paper |
Palavras-chave: Nutrient turnover. |
| Ano: 2007 |
URL: http://orgprints.org/17085/1/uusitalo1.pdf |
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