Výsledky vyhledávání - "Jørgen Djurhuus"

Buffer zones as a sink for sediment and phosphorus between the field and stream: Danish field experiences

Autor: Søren Ejling Larsen, Hans Estrup Andersen, Jørgen Djurhuus, A. Laubel, Brian Kronvang

Publikováno v: Water Science and Technology. 51:55-62

Rill erosion, surface runoff and storage of sediment and phosphorus in buffer zones were investigated during three winters on ca. 140 arable field slope units in twenty places in Denmark covering all landscape types, climate gradients and dominant so

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bcce21287e0644e0564e5c110a6d1ece
https://doi.org/10.2166/wst.2005.0575

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Yield Parameters as Affected by Introduction or Discontinuation of Catch Crop Use

Autor: Jørgen Djurhuus, Kristian Kristensen, Elly Møller Hansen

Publikováno v: Hansen, E M, Kristensen, K & Djurhuus, J 2000, ' Yield Parameters as Affected by Introduction or Discontinuation of Catch Crop Use ', Agronomy Journal, vol. 92, pp. 909-914 .

A 24-yr-old permanent field trial on coarse sand (Orthic Haplohumod) under temperate coastal climate conditions was used to determine (i) the effect of introducing perennial ryegrass (Lolium perenne L.) as a catch crop on plots with a history of low

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::439fcb26a7a330ee75c09351d8635bbb
https://doi.org/10.2134/agronj2000.925909x

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Yield and N uptake as affected by soil tillage and catch crop

Autor: Jørgen Djurhuus, E.Møller Hansen

Publikováno v: Soil and Tillage Research. 42:241-252

Two field trials with spring barley ( Hordeum vulgare L.) were conducted at two locations in Denmark in order to evaluate the effects of tillage and growth of a catch crop on yield parameters under temperate coastal climate conditions. Ploughing in a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ee592d6c5f2ea0a4eaf1601704e7fd59
https://doi.org/10.1016/s0167-1987(97)00013-5

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Nitrate leaching as influenced by soil tillage and catch crop

Autor: Jørgen Djurhuus, E.Møller Hansen

Publikováno v: Soil and Tillage Research. 41:203-219

Because of public and political concern for the quality of surface and ground water, leaching of nitrate is of special concern in many countries. To evaluate the effects of tillage and growth of a catch crop on nitrate leaching, two field trials were

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9dd42c4874de90461ab87e89cb9c170e
https://doi.org/10.1016/s0167-1987(96)01097-5

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Nitrate leaching as affected by long-term N fertilization on a coarse sand

Autor: Jørgen Djurhuus, Elly Møller Hansen

Publikováno v: Hansen, E M & Djurhuus, J 1996, ' Nitrate leaching as affected by long-term N fertilization on a coarse sand ', Soil Use and Management, vol. 12, pp. 199-204 .

A field experiment on a coarse sand (1987-92) was conducted with spring barley (Hordeum vulgare L.), in order to evaluate the effects of increasing N fertilization on nitrate leaching under temperate coastal climate conditions. The N fertilizer level

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b280bc8bc08c24ebdb30d61ba46f033
https://doi.org/10.1111/j.1475-2743.1996.tb00543.x

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Omlejring af fosfor fra pløjelag til underjord

Autor: Gitte Holton Rubæk, Jørgen Djurhuus, Goswin Heckrath

Publikováno v: Rubæk, G H, Djurhuus, J & Heckrath, G 2008, Omlejring af fosfor fra pløjelag til underjord . i Sammendrag af indlæg : Plantekongres 2008 . Aarhus Universitet, Det Jordbrugsvidenskabelige Fakultet, s. 249-250, Plantekongres 2008, Herning, Danmark, 08/01/2008 . < http://www.lr.dk/planteavl/informationsserier/info-planter/plk08_p4_1_g_rubaek_res.pdf >
Aarhus University

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::6e90fc6bbe4df8886dc116a98bfab420
https://pure.au.dk/portal/da/publications/omlejring-af-fosfor-fra-ploejelag-til-underjord(57ab0d00-bf57-11dc-bb77-000ea68e967b).html

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ErosPredict - a model for predicting water erosion in Denmark

Autor: Jørgen Djurhuus, Søren Højsgaard, Goswin Heckrath, Preben Olsen

Publikováno v: Djurhuus, J, Højsgaard, S, Heckrath, G & Olsen, P 2004, ' ErosPredict-a model for predicting water erosion in Denmark ', International Congress of the ESSC, Budapest, Hungary, 25/05/2004-29/05/2004 .
Aarhus University
Aalborg University

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::097f7f33011778e15edfc144efcaa5c2
https://pure.au.dk/portal/da/publications/erospredict--a-model-for-predicting-water-erosion-in-denmark(382ea970-1b09-11dc-b343-000ea68e967b).html

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Biological nitrogen fixation in a grazed perennial grass/clover ley and correlation with herbage and soil variables

Autor: Elly Møller Hansen, Henning Høgh-Jensen, Jørgen Djurhuus

Publikováno v: Hansen, E M, Høgh-Jensen, H & Djurhuus, J 2002, ' Biological nitrogen fixation in a grazed perennial grass/clover ley and correlation with herbage and soil variables ', European Journal of Agronomy, vol. 16, pp. 309-320 .

In a grazed grass/clover pasture, biological nitrogen fixation (BNF) is a source of nitrogen (N). The determination of this N input and how it is influenced by N, phosphorus (P) and potassium (K) in the soil, is complicated by grazing animals, which

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a3db24fa6dccd866d928c934625cf929
https://pure.au.dk/portal/da/publications/biological-nitrogen-fixation-in-a-grazed-perennial-grassclover-ley-and-correlation-with-herbage-and-soil-variables(d6d996b0-bc19-11db-8e26-000ea68e967b).html

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Evaluation of analytical methods for the prediction of crop N uptake

Autor: Ingrid Kaag Thomsen, Jørgen Djurhuus, Østergaard, H. S.

Publikováno v: Thomsen, I K, Djurhuus, J & Østergaard, H S 2002, Evaluation of analytical methods for the prediction of crop N uptake . in H S Østergaard, G Fystro & I K Thomsen (eds), Optimal nitrogen fertilization-tools for recommendation. Proceedings from NJF seminar 322 . DIAS report, Plant Production, no. 84, pp. 119-119, Evaluation of analytical methods for the prediction of crop N uptake, Ås, Norway, 29/03/2001 .
Aarhus University

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::586a14b65e756adc0044ca91aab4755e
https://pure.au.dk/portal/da/publications/evaluation-of-analytical-methods-for-the-prediction-of-crop-n-uptake(1f5b0d40-c027-11db-8e26-000ea68e967b).html

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Phosphorus content and degree of phosphorus saturation in Danish soils

Autor: Gitte Holton Rubæk, Goswin Heckrath, Jørgen Djurhuus, Svend Elsnab Olesen, Østergaard, H.

Publikováno v: Rubæk, G H, Heckrath, G, Djurhuus, J, Olesen, S E & Østergaard, H 2001, Phosphorus content and degree of phosphorus saturation in Danish soils . in P Haygarth (ed.), Connecting Phosphorus Transfer from Agriculture to Impacts in Surface Waters . pp. 1-1, Phosphorus content and degree of phosphorus saturation in Danish soils, Plymouth, 28/08/2001 .
Aarhus University

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::1bfaeadb3292cefc5ad1dc47e8172aa9
https://pure.au.dk/portal/da/publications/phosphorus-content-and-degree-of-phosphorus-saturation-in-danish-soils(779a5360-c7cc-11db-8e26-000ea68e967b).html

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