Spatial Variability of Soil Phosphorus Indices under Two Contrasting Grassland Fields in Eastern Canada
Spatial Variability of Soil Phosphorus Indices under Two Contrasting Grassland Fields in Eastern Canada
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- creativework.keywords - en
- organic manure
- geostatistics
- spatial distribution maps
- permanent grasslands
- precision agriculture
- geology--statistical methods
- precision farming
- creativework.keywords - fr
- fumier biologique
- géostatistique
- cartes de distribution spatiale
- prairies permanentes
- agriculture de précision
- préciculture
- géologie--méthodes statistiques
- dc.contributor.author
- Nze Memiaghe, Jeff D.
- Cambouris, Athyna N.
- Ziadi, Noura
- Karam, Antoine
- Perron, Isabelle
- dc.date.accessioned
- 2023-04-20T18:17:33Z
- dc.date.available
- 2023-04-20T18:17:33Z
- dc.date.issued
- 2020-12-24
- dc.description.abstract - en
- Phosphorus (P) is an essential nutrient for grassland production systems. However, continuous applications of P fertilizers result in soil P accumulations, increasing the risk of P losses in runoff and erosion. This study aims to investigate the field-scale variability of soil-test P (STP) in two contrasting grassland fields using descriptive statistics and geostatistics for accurate recommendations on soil sampling strategy and sustainable approaches to P management. A young grassland (YG; 2 years) and an old grassland (OG; 10 years under permanent pasture) were classified as humo-ferric podzol and received organic fertilizers. Soil samples were collected in 16-m by 16-m triangular grids at two depths (0–5 and 5–20 cm). They were analyzed for available P and other soil elements extracted using the Mehlich-3 method (M3). The agri-environmental P saturation index (P/Al)M3 was calculated. Phosphorus accumulation was observed in OG (0–5 cm) as a result of long-term manure applications. Repeated applications of organic fertilizers can impact the long-term buildup of soil P, thus decreasing soil P va-riability and spatial dependence in permanent grasslands. A soil sampling strategy focusing on the 0–5 cm layer should be retained in permanent grasslands for sustainable P recommendations in Eastern Canada.
- dc.description.abstract-fosrctranslation - fr
- Phosphorus (P) is an essential nutrient for grassland production systems. However, continuous applications of P fertilizers result in soil P accumulations, increasing the risk of P losses in runoff and erosion. This study aims to investigate the field-scale variability of soil-test P (STP) in two contrasting grassland fields using descriptive statistics and geostatistics for accurate recommendations on soil sampling strategy and sustainable approaches to P management. A young grassland (YG; 2 years) and an old grassland (OG; 10 years under permanent pasture) were classified as humo-ferric podzol and received organic fertilizers. Soil samples were collected in 16-m by 16-m triangular grids at two depths (0–5 and 5–20 cm). They were analyzed for available P and other soil elements extracted using the Mehlich-3 method (M3). The agri-environmental P saturation index (P/Al)M3 was calculated. Phosphorus accumulation was observed in OG (0–5 cm) as a result of long-term manure applications. Repeated applications of organic fertilizers can impact the long-term buildup of soil P, thus decreasing soil P va-riability and spatial dependence in permanent grasslands. A soil sampling strategy focusing on the 0–5 cm layer should be retained in permanent grasslands for sustainable P recommendations in Eastern Canada.
- dc.identifier.citation
- Nze Memiaghe, J., Cambouris, A, Ziadi, N., Karam, A., & Perron, I. (2021). Spatial Variability of Soil Phosphorus Indices under Two Contrasting Grassland Fields in Eastern Canada. Agronomy, 11(1), 24. https://doi.org/10.3390/agronomy11010024
- dc.identifier.doi
- https://doi.org/10.3390/agronomy11010024
- dc.identifier.issn
- 2073-4395
- dc.identifier.uri
- https://open-science.canada.ca/handle/123456789/227
- dc.language.iso
- en
- dc.publisher
- MDPI
- dc.rights.openaccesslevel - en
- Gold
- dc.rights.openaccesslevel - fr
- Or
- dc.subject - en
- Agriculture
- dc.subject - fr
- Agriculture
- dc.subject.en - en
- Agriculture
- dc.subject.fr - fr
- Agriculture
- dc.title - en
- Spatial Variability of Soil Phosphorus Indices under Two Contrasting Grassland Fields in Eastern Canada
- dc.title.fosrctranslation - fr
- Spatial Variability of Soil Phosphorus Indices under Two Contrasting Grassland Fields in Eastern Canada
- dc.type - en
- Article
- dc.type - fr
- Article
- local.article.journalissue
- 1
- local.article.journaltitle
- Agronomy
- local.article.journalvolume
- 11
- local.article.pagination
- 24
- local.peerreview - en
- Yes
- local.peerreview - fr
- Oui
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