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    Rights statement: This is the peer reviewed version of the following article:Pedersen, I. F., Sørensen, P. , Rasmussen, J. , Withers, P. J. and Rubæk, G. H. (2019), Fertilizer ammonium : nitrate ratios determine phosphorus uptake by young maize plants . J. Plant Nutr. Soil Sci.. doi:10.1002/jpln.201800553 which has been published in final form at https://onlinelibrary.wiley.com/doi/full/10.1002/jpln.201800553 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.

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Fertilizer ammonium: nitrate ratios determine phosphorus uptake by young maize plants

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Fertilizer ammonium : nitrate ratios determine phosphorus uptake by young maize plants. / Pedersen, I.F.; Sørensen, P.; Rasmussen, J.; Withers, P.J.A.; Rubæk, G.H.

In: Journal of Plant Nutrition and Soil Science, 04.04.2019.

Research output: Contribution to journalJournal article

Harvard

Pedersen, IF, Sørensen, P, Rasmussen, J, Withers, PJA & Rubæk, GH 2019, 'Fertilizer ammonium: nitrate ratios determine phosphorus uptake by young maize plants', Journal of Plant Nutrition and Soil Science. https://doi.org/10.1002/jpln.201800553

APA

Pedersen, I. F., Sørensen, P., Rasmussen, J., Withers, P. J. A., & Rubæk, G. H. (2019). Fertilizer ammonium: nitrate ratios determine phosphorus uptake by young maize plants. Journal of Plant Nutrition and Soil Science. https://doi.org/10.1002/jpln.201800553

Vancouver

Pedersen IF, Sørensen P, Rasmussen J, Withers PJA, Rubæk GH. Fertilizer ammonium: nitrate ratios determine phosphorus uptake by young maize plants. Journal of Plant Nutrition and Soil Science. 2019 Apr 4. https://doi.org/10.1002/jpln.201800553

Author

Pedersen, I.F. ; Sørensen, P. ; Rasmussen, J. ; Withers, P.J.A. ; Rubæk, G.H. / Fertilizer ammonium : nitrate ratios determine phosphorus uptake by young maize plants. In: Journal of Plant Nutrition and Soil Science. 2019.

Bibtex

@article{650884eec10d4864ba872eface1f66d4,
title = "Fertilizer ammonium: nitrate ratios determine phosphorus uptake by young maize plants",
abstract = "We investigated the interacting effects of inorganic nitrogen and the main inorganic phosphorus form in dairy manure (dicalcium phosphate, CaHPO 4 ) on growth, nutrient uptake, and rhizosphere pH of young maize plants. In a pot experiment, three levels of CaHPO 4 (0, 167, and 500 mg P pot −1 ) were combined with nitrogen (637 mg N pot −1 ) applied at five NH 4 -N : NO 3 -N ratios (0 : 100, 25 : 75, 50 : 50, 75 : 25, and 100 : 0) and a nitrification inhibitor in a concentrated layer of a typical acid sandy soil from Denmark. 15 N-labeled NH 4 -N was applied to differentiate the role of nitrification and to partition nitrogen uptake derived from NH 4 -N. Among treatments including nitrogen, shoot biomass, rooting and phosphorus uptake were significantly higher at the five-leaf stage when CaHPO 4 was applied with NH 4 -N : NO 3 -N ratios of 50 : 50 and 75 : 25. In these treatments, rhizosphere pH dropped significantly in direct proportion with NH 4 -N uptake. The fertilizers in the concentrated layer had a root-inhibiting effect in treatments without phosphorus supply and in treatments with pure NO 3 -N or NH 4 -N supply. Increased nitrogen uptake as NH 4 -N instead of NO 3 -N reduced rhizosphere pH and enhanced acquisition of applied CaHPO 4 by young maize plants, which may have positive implications for the enhanced utilization of manure phosphorus.",
keywords = "nitrogen form, rhizosphere, soil acidification, starter fertilizer, Zea mays",
author = "I.F. Pedersen and P. S{\o}rensen and J. Rasmussen and P.J.A. Withers and G.H. Rub{\ae}k",
note = "This is the peer reviewed version of the following article:Pedersen, I. F., S{\o}rensen, P. , Rasmussen, J. , Withers, P. J. and Rub{\ae}k, G. H. (2019), Fertilizer ammonium : nitrate ratios determine phosphorus uptake by young maize plants . J. Plant Nutr. Soil Sci.. doi:10.1002/jpln.201800553 which has been published in final form at https://onlinelibrary.wiley.com/doi/full/10.1002/jpln.201800553 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.",
year = "2019",
month = "4",
day = "4",
doi = "10.1002/jpln.201800553",
language = "English",
journal = "Journal of Plant Nutrition and Soil Science",
issn = "1436-8730",
publisher = "Wiley-VCH Verlag",

}

RIS

TY - JOUR

T1 - Fertilizer ammonium

T2 - nitrate ratios determine phosphorus uptake by young maize plants

AU - Pedersen, I.F.

AU - Sørensen, P.

AU - Rasmussen, J.

AU - Withers, P.J.A.

AU - Rubæk, G.H.

N1 - This is the peer reviewed version of the following article:Pedersen, I. F., Sørensen, P. , Rasmussen, J. , Withers, P. J. and Rubæk, G. H. (2019), Fertilizer ammonium : nitrate ratios determine phosphorus uptake by young maize plants . J. Plant Nutr. Soil Sci.. doi:10.1002/jpln.201800553 which has been published in final form at https://onlinelibrary.wiley.com/doi/full/10.1002/jpln.201800553 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.

PY - 2019/4/4

Y1 - 2019/4/4

N2 - We investigated the interacting effects of inorganic nitrogen and the main inorganic phosphorus form in dairy manure (dicalcium phosphate, CaHPO 4 ) on growth, nutrient uptake, and rhizosphere pH of young maize plants. In a pot experiment, three levels of CaHPO 4 (0, 167, and 500 mg P pot −1 ) were combined with nitrogen (637 mg N pot −1 ) applied at five NH 4 -N : NO 3 -N ratios (0 : 100, 25 : 75, 50 : 50, 75 : 25, and 100 : 0) and a nitrification inhibitor in a concentrated layer of a typical acid sandy soil from Denmark. 15 N-labeled NH 4 -N was applied to differentiate the role of nitrification and to partition nitrogen uptake derived from NH 4 -N. Among treatments including nitrogen, shoot biomass, rooting and phosphorus uptake were significantly higher at the five-leaf stage when CaHPO 4 was applied with NH 4 -N : NO 3 -N ratios of 50 : 50 and 75 : 25. In these treatments, rhizosphere pH dropped significantly in direct proportion with NH 4 -N uptake. The fertilizers in the concentrated layer had a root-inhibiting effect in treatments without phosphorus supply and in treatments with pure NO 3 -N or NH 4 -N supply. Increased nitrogen uptake as NH 4 -N instead of NO 3 -N reduced rhizosphere pH and enhanced acquisition of applied CaHPO 4 by young maize plants, which may have positive implications for the enhanced utilization of manure phosphorus.

AB - We investigated the interacting effects of inorganic nitrogen and the main inorganic phosphorus form in dairy manure (dicalcium phosphate, CaHPO 4 ) on growth, nutrient uptake, and rhizosphere pH of young maize plants. In a pot experiment, three levels of CaHPO 4 (0, 167, and 500 mg P pot −1 ) were combined with nitrogen (637 mg N pot −1 ) applied at five NH 4 -N : NO 3 -N ratios (0 : 100, 25 : 75, 50 : 50, 75 : 25, and 100 : 0) and a nitrification inhibitor in a concentrated layer of a typical acid sandy soil from Denmark. 15 N-labeled NH 4 -N was applied to differentiate the role of nitrification and to partition nitrogen uptake derived from NH 4 -N. Among treatments including nitrogen, shoot biomass, rooting and phosphorus uptake were significantly higher at the five-leaf stage when CaHPO 4 was applied with NH 4 -N : NO 3 -N ratios of 50 : 50 and 75 : 25. In these treatments, rhizosphere pH dropped significantly in direct proportion with NH 4 -N uptake. The fertilizers in the concentrated layer had a root-inhibiting effect in treatments without phosphorus supply and in treatments with pure NO 3 -N or NH 4 -N supply. Increased nitrogen uptake as NH 4 -N instead of NO 3 -N reduced rhizosphere pH and enhanced acquisition of applied CaHPO 4 by young maize plants, which may have positive implications for the enhanced utilization of manure phosphorus.

KW - nitrogen form

KW - rhizosphere

KW - soil acidification

KW - starter fertilizer

KW - Zea mays

U2 - 10.1002/jpln.201800553

DO - 10.1002/jpln.201800553

M3 - Journal article

JO - Journal of Plant Nutrition and Soil Science

JF - Journal of Plant Nutrition and Soil Science

SN - 1436-8730

ER -