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dc.contributor.authorAbat, M.en
dc.contributor.authorMcLaughlin, M.en
dc.contributor.authorStacey, S.en
dc.contributor.authorKirby, J.en
dc.identifier.citationJournal of Plant Nutrition, 2013; 36(10):1590-1604en
dc.description.abstractWe assessed the response of the tomato variety “Tiny Tom” to the application of copper (Cu) and zinc (Zn) fertilizers in three tropical peat soils of Sarawak: mixed swamp forest, Alan forest and Padang Alan forest. Limed soils were used because peat soils in their natural condition are unsuitable to sustain healthy growth of most crops. Yield responses were correlated with added Cu and Zn using Mitscherlich model. Adequate levels of applied Cu and Zn were calculated as those which resulted in 90% of the maximum obtainable shoot dry weight. Application of Cu and Zn significantly(P ≤ 0.05) increased the shoot dry weight and the shoot Cu and Zn concentrations of tomato. Application of the equivalent of 8.3 kg Cu and 5.2 kg Zn per ha was required to achieve 90% of the maximum shoot dry weight. In tomato shoots, the critical concentration for Cu was 18 mg/kg and for Zn, 92 mg/kg. The corresponding concentrations for diethylenetriaminepentaaceticacid (DTPA) extractable Cu and Zn in the soils were 2.3 mg Cu kg−1 and 3.6 mg Zn kg−1. However, the addition of Cu fertilizer also increased Zn uptake by tomato plant, probably by displacing native Zn that was weakly sorbed to the soil solid phase.en
dc.description.statementofresponsibilityMargaret Abat, Michael J. McLaughlin, Samuel P. Stacey and Jason K. Kirbyen
dc.publisherMarcel Dekker Incen
dc.rights© Informa UK Limited, an Informa Group Companyen
dc.subjectCopper; zinc; tomato; tropical peat soils; Mitscherlich modelen
dc.titleResponses of tomato var. Tiny Tom to application of copper and zinc fertilizers in three limed tropical peat soils of Sarawaken
dc.typeJournal articleen
pubs.library.collectionAgriculture, Food and Wine publicationsen
dc.identifier.orcidMcLaughlin, M. [0000-0001-6796-4144]en
Appears in Collections:Agriculture, Food and Wine publications
Environment Institute publications

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