Ir. P.A.I. Ehlert

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Wageningen University & Research Centre (82)

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Toepassingsmogelijkheden voor natuur- en bermmaaisel : stand van zaken en voorstel voor een onderzoeksagenda (2013)Open access

Authors: Spijker, J.H.; Bakker, R.R.C.; Ehlert, P.A.I.; Elbersen, H.W.; Jong, de J.J.; Zwart, K.B.
Agronomic potential of mineral concentrate from processed manure as fertiliser (2012)

Authors: Velthof, G.L.; Hoeksma, P.; Schröder, J.J.; Middelkoop, van J.C.; Geel, van W.C.A.; Ehlert, P.A.I.; Holshof, G.; Klop, G.; Lesschen, J.P.

Abstract:
Processing of manure intends to increase the use efficiency of nutrients. A concentrated solution of nitrogen (N) and potassium (K) (‘mineral concentrate’) is one of the possible products resulting from manure processing. A study is carried out in the Netherlands to determine the agronomic and envir
Balanced phosphorus fertilization on grassland in a mixed grazing and mowing system; a 13 year field experiment (2012)Open access

Authors: Middelkoop, van J.C.; Salm, van der C.; Ehlert, P.A.I.
Risk assessment methodologies of soil threats in Europe. Status and options for harmonization ofr risks by erosion, compaction, dalinization, organic matter decline and landslides (2012)Open access

Authors: Beek, van C.L.; Toth, G.; Ehlert, P.A.I.; Kuikman, P.J.; Chardon, W.J.; Oenema, O.; Akker, van den J.J.H.; Heesmans, H.I.M.; Zee, van der S.E.A.T.M.; Verzandvoort, S.J.E.

Abstract:
The EU thematic strategy for soil protection recognizes that soil degradation through erosion, soil organic matter decline, compaction, salinization and landslides occurs in specific areas, and that these areas must be identified in an unequivocal way. Currently, there are various risk assessment me
Phosphorus fertilisers from by-products and wastes (2012)

Authors: Oenema, O.; Chardon, W.J.; Ehlert, P.A.I.; Dijk, van K.; Schoumans, O.F.; Rulkens, W.H.

Abstract:
Processing of manure intends to increase the use efficiency of nutrients. A concentrated solution of nitrogen (N) and potassium (K) (‘mineral concentrate’) is one of the possible products resulting from manure processing. A study is carried out in the Netherlands to determine the agronomic and envir

Authors:	Spijker, J.H.; Bakker, R.R.C.; Ehlert, P.A.I.; Elbersen, H.W.; Jong, de J.J.; Zwart, K.B.

Authors:	Velthof, G.L.; Hoeksma, P.; Schröder, J.J.; Middelkoop, van J.C.; Geel, van W.C.A.; Ehlert, P.A.I.; Holshof, G.; Klop, G.; Lesschen, J.P.

Authors:	Middelkoop, van J.C.; Salm, van der C.; Ehlert, P.A.I.

Authors:	Beek, van C.L.; Toth, G.; Ehlert, P.A.I.; Kuikman, P.J.; Chardon, W.J.; Oenema, O.; Akker, van den J.J.H.; Heesmans, H.I.M.; Zee, van der S.E.A.T.M.; Verzandvoort, S.J.E.

Authors:	Oenema, O.; Chardon, W.J.; Ehlert, P.A.I.; Dijk, van K.; Schoumans, O.F.; Rulkens, W.H.

Risk assessment methodologies of soil threats in Europe: status and options for harmonization for risks by erosion, compaction, salinization, organic matter decline and landslides (2012)Open access

Authors:	Ano-Vidal, C.; Ehlert, P.A.I.; Hagyo, A.; Heesmans, H.I.M.; Kuikman, P.J.; Oenema, O.; Recatala-Boix, L.; Simota, C.; Tóth, G.; Beek van, C.; Akker van de, J.; Zee, van der S.E.A.T.M.; Verzandvoort, S.

Stikstofwerking van mineralenconcentraten : stikstofwerkingscoëfficiënten en verliezen door denitrificatie en stikstofimmobilisatie bepaald onder gecontroleerde omstandigheden (2012)Open access

Authors: Ehlert, P.A.I.; Nelemans, J.A.; Velthof, G.L.
Afzetmogelijkheden van de dunne fractie van varkensdrijfmest na mestscheiding (2012)Open access

Authors: Schoumans, O.F.; Ehlert, P.A.I.; Rulkens, W.H.; Oenema, O.

Authors:	Ehlert, P.A.I.; Nelemans, J.A.; Velthof, G.L.

Authors:	Schoumans, O.F.; Ehlert, P.A.I.; Rulkens, W.H.; Oenema, O.

Effect van mestbeleid op bodemvruchtbaarheid en gewasopbrengst : Evaluatie Meststoffenwet 2012: deelrapport ex post (2012)Open access

Authors:	Schils, R.L.M.; Dijk, van W.; Middelkoop, van J.C.; Oenema, J.; Verloop, J.; Huijsmans, J.F.M.; Ehlert, P.A.I.; Salm, van der C.; Reuler, van H.; Vreeburg, P.J.M.; Dekking, A.J.G.; Geel, van W.C.A.; Schoot, van der J.R.

Kansen en bedreigingen voor mestvergisting en groengasproductie in de Gelderse landbouw : een eerste verkenning (2011)Open access

Authors: Migchels, G.; Kuikman, P.J.; Aarts, H.F.M.; Dooren, van H.J.C.; Ehlert, P.A.I.; Luttik, J.; Sebek, L.B.; Zwart, K.B.

Authors:	Migchels, G.; Kuikman, P.J.; Aarts, H.F.M.; Dooren, van H.J.C.; Ehlert, P.A.I.; Luttik, J.; Sebek, L.B.; Zwart, K.B.

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Ir. P.A.I. Ehlert

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