Nitrogen Use Efficiency and Gaseous Nitrogen Losses from the Concentrated Liquid Fraction of Pig Slurries

G.L. Velthof, R.P.J.J. Rietra*, Stefania Pindozzi

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Processed manure can be an alternative source of nutrients for untreated manure and mineral fertilizers. Mineral concentrates (MCs) are derived from reversed osmosis of the liquid fraction of separated pig slurries. The emissions of ammonia (NH 3 ) and nitrous oxide (N 2 O) from different (processed) manures and fertilizers were tested in an incubation experiment and a greenhouse experiment with grass as a test crop. Dry matter yields and nitrogen (N) uptake were also determined in the greenhouse experiment. Incorporation into the soil decreased on NH 3 emission but increased N 2 O emission for all nitrogen products (mineral fertilizer, untreated slurry, MC, and solid fraction of separated slurry). Incorporation of both MC, slurries, and mineral fertilizers increased N 2 O emission in the incubation experiment. The lowest apparent N recovery (ANR) in the pot experiment with grass was obtained for incorporated pig slurry (30-39%) and surface-applied MC (33-38%), while the highest ANRs were obtained for liquid ammonium nitrate (45-53%) and acidified MC (43-55%). It is concluded that MCs have a similar N fertilizer value as mineral N fertilizers if NH 3 emission is reduced by incorporation or acidification.

Original languageEnglish
Article number9283106
Number of pages11
JournalInternational Journal of Agronomy
Volume2019
DOIs
Publication statusPublished - 2 May 2019

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slurries
nutrient use efficiency
concentrates
minerals
mineral fertilizers
swine
liquids
nitrogen
animal manures
greenhouse experimentation
nitrogen fertilizers
grasses
osmosis
pig manure
ammonium nitrate
nitrous oxide
acidification
ammonia
fertilizers
uptake mechanisms

Cite this

@article{473aa9a7e25a45d995754e333b92d23a,
title = "Nitrogen Use Efficiency and Gaseous Nitrogen Losses from the Concentrated Liquid Fraction of Pig Slurries",
abstract = "Processed manure can be an alternative source of nutrients for untreated manure and mineral fertilizers. Mineral concentrates (MCs) are derived from reversed osmosis of the liquid fraction of separated pig slurries. The emissions of ammonia (NH 3 ) and nitrous oxide (N 2 O) from different (processed) manures and fertilizers were tested in an incubation experiment and a greenhouse experiment with grass as a test crop. Dry matter yields and nitrogen (N) uptake were also determined in the greenhouse experiment. Incorporation into the soil decreased on NH 3 emission but increased N 2 O emission for all nitrogen products (mineral fertilizer, untreated slurry, MC, and solid fraction of separated slurry). Incorporation of both MC, slurries, and mineral fertilizers increased N 2 O emission in the incubation experiment. The lowest apparent N recovery (ANR) in the pot experiment with grass was obtained for incorporated pig slurry (30-39{\%}) and surface-applied MC (33-38{\%}), while the highest ANRs were obtained for liquid ammonium nitrate (45-53{\%}) and acidified MC (43-55{\%}). It is concluded that MCs have a similar N fertilizer value as mineral N fertilizers if NH 3 emission is reduced by incorporation or acidification.",
author = "G.L. Velthof and R.P.J.J. Rietra and Stefania Pindozzi",
year = "2019",
month = "5",
day = "2",
doi = "10.1155/2019/9283106",
language = "English",
volume = "2019",
journal = "International Journal of Agronomy",
issn = "1687-8159",
publisher = "Hindawi Publishing Corporation",

}

Nitrogen Use Efficiency and Gaseous Nitrogen Losses from the Concentrated Liquid Fraction of Pig Slurries. / Velthof, G.L.; Rietra, R.P.J.J.; Pindozzi, Stefania.

In: International Journal of Agronomy, Vol. 2019, 9283106, 02.05.2019.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Nitrogen Use Efficiency and Gaseous Nitrogen Losses from the Concentrated Liquid Fraction of Pig Slurries

AU - Velthof, G.L.

AU - Rietra, R.P.J.J.

AU - Pindozzi, Stefania

PY - 2019/5/2

Y1 - 2019/5/2

N2 - Processed manure can be an alternative source of nutrients for untreated manure and mineral fertilizers. Mineral concentrates (MCs) are derived from reversed osmosis of the liquid fraction of separated pig slurries. The emissions of ammonia (NH 3 ) and nitrous oxide (N 2 O) from different (processed) manures and fertilizers were tested in an incubation experiment and a greenhouse experiment with grass as a test crop. Dry matter yields and nitrogen (N) uptake were also determined in the greenhouse experiment. Incorporation into the soil decreased on NH 3 emission but increased N 2 O emission for all nitrogen products (mineral fertilizer, untreated slurry, MC, and solid fraction of separated slurry). Incorporation of both MC, slurries, and mineral fertilizers increased N 2 O emission in the incubation experiment. The lowest apparent N recovery (ANR) in the pot experiment with grass was obtained for incorporated pig slurry (30-39%) and surface-applied MC (33-38%), while the highest ANRs were obtained for liquid ammonium nitrate (45-53%) and acidified MC (43-55%). It is concluded that MCs have a similar N fertilizer value as mineral N fertilizers if NH 3 emission is reduced by incorporation or acidification.

AB - Processed manure can be an alternative source of nutrients for untreated manure and mineral fertilizers. Mineral concentrates (MCs) are derived from reversed osmosis of the liquid fraction of separated pig slurries. The emissions of ammonia (NH 3 ) and nitrous oxide (N 2 O) from different (processed) manures and fertilizers were tested in an incubation experiment and a greenhouse experiment with grass as a test crop. Dry matter yields and nitrogen (N) uptake were also determined in the greenhouse experiment. Incorporation into the soil decreased on NH 3 emission but increased N 2 O emission for all nitrogen products (mineral fertilizer, untreated slurry, MC, and solid fraction of separated slurry). Incorporation of both MC, slurries, and mineral fertilizers increased N 2 O emission in the incubation experiment. The lowest apparent N recovery (ANR) in the pot experiment with grass was obtained for incorporated pig slurry (30-39%) and surface-applied MC (33-38%), while the highest ANRs were obtained for liquid ammonium nitrate (45-53%) and acidified MC (43-55%). It is concluded that MCs have a similar N fertilizer value as mineral N fertilizers if NH 3 emission is reduced by incorporation or acidification.

U2 - 10.1155/2019/9283106

DO - 10.1155/2019/9283106

M3 - Article

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JO - International Journal of Agronomy

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