Changes to soil profile carbon and nutrient distribution following pasture renewal with full inversion tillage

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dc.citation.volumeAhead of Print
dc.contributor.authorAmanor YJ
dc.contributor.authorHanly JA
dc.contributor.authorCalvelo-Pereira R
dc.contributor.authorHedley MJ
dc.date.accessioned2024-12-11T22:36:11Z
dc.date.available2024-12-11T22:36:11Z
dc.date.issued2024-07-18
dc.description.abstractFull inversion tillage (FIT) at pasture renewal is a management option aiming to increase carbon stocks in long-term pasture, to achieve carbon neutrality. This study investigated the effects of FIT on carbon and nutrient distribution in the soil profile (0–7.5, 7.5–15, 15–22.5 and 22.5–30 cm depths) as well as nutrient uptake, and subsequent fodder crop and/or pasture yields across three pasture renewal trials (Trials 1 and 3: Alfisol; Trial 2: Andisol). These effects of FIT were assessed against standard tillage treatments (no till, shallow till), and non-renewed pasture within 8–18 months post-tillage. FIT changed soil carbon stratification, causing 16%–46% reduction in topsoil (0–7.5 cm) cation exchange capacity across the three trials. However, nutrient levels after FIT remained within recommended ranges for crop and/or pasture growth, avoiding any yield reductions. Topsoil fertility post-FIT depended on original degree of nutrient stratification in the soil profile. At Trial 1, temporary deficiencies caused by low subsoil P and K soil tests pre-FIT were anticipated and corrected with fertiliser nutrients for the following break crop and resown pasture. We conclude that soil testing the cultivation depth prior to FIT at pasture renewal provides the necessary soil test information to manage yield expectations.
dc.description.confidentialfalse
dc.edition.editionJul 2024
dc.identifier.citationAmanor YJ, Hanly JA, Calvelo-Pereira R, Hedley MJ. (2024). Changes to soil profile carbon and nutrient distribution following pasture renewal with full inversion tillage. New Zealand Journal of Agricultural Research. Ahead of Print.
dc.identifier.doi10.1080/00288233.2024.2371113
dc.identifier.eissn1175-8775
dc.identifier.elements-typejournal-article
dc.identifier.issn0028-8233
dc.identifier.urihttps://mro.massey.ac.nz/handle/10179/72286
dc.languageEnglish
dc.publisherTaylor and Francis Group
dc.publisher.urihttp://tandfonline.com/doi/full/10.1080/00288233.2024.2371113
dc.relation.isPartOfNew Zealand Journal of Agricultural Research
dc.rights(c) 2024 The Author/s
dc.rightsCC BY-NC-ND 4.0
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectDeep tillage
dc.subjectsoil fertility
dc.subjectsoil test value
dc.subjectnutrient stratification
dc.subjectAndisol
dc.subjectAlfisol
dc.titleChanges to soil profile carbon and nutrient distribution following pasture renewal with full inversion tillage
dc.typeJournal article
pubs.elements-id490929
pubs.organisational-groupCollege of Health
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