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Amending soils of different pH to decrease phosphorus losses

journal contribution
posted on 2024-06-21, 03:50 authored by Carolina Lizarralde, Rich McDowellRich McDowell, Leo Condron, Jeffrey Brown
In most cases the application of Al, Fe and Ca amendments decreased WEP in proportion to the rates applied. However, poor performance was noted when amendments were mismatched to soils altering their pH into the range where high soil P availability was expected. Of the amendments used, alum and iron sulfate were the most cost-efficient. However, even when optimised and applied to critical source areas the estimated cost-effectiveness of these amendments is still poor and may only be effective in the short term.

Funding

Funded by the New Zealand Ministry for Business, Innovation and Employment's Our Land and Water National Science Challenge (Toitū te Whenua, Toiora te Wai) as part of project Phosphorus Best Practice

History

Publication date

2021-10-07

Language

  • English

Does this contain Māori information or data?

  • No

Journal title

Soil Research

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