A comparison of nitrogen use efficiency and surplus in two dairy farms typologies
Referring to the Destra Brenta district (Veneto Region, Italy) two farming systems were considered: grassland-hay (H) vs. arable land-silage maize (M). Manure and crop products belonged to an internal flow, thus an annual farm gate balance of nitrogen (N) was carried out to determine the nutrient us...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2010-01-01
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| Series: | Italian Journal of Animal Science |
| Subjects: | |
| Online Access: | http://www.aspajournal.it/index.php/ijas/article/view/823 |
| _version_ | 1811227206840483840 |
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| author | Igino Andrighetto Giorgio Marchesini Severino Segato |
| author_facet | Igino Andrighetto Giorgio Marchesini Severino Segato |
| author_sort | Igino Andrighetto |
| collection | DOAJ |
| description | Referring to the Destra Brenta district (Veneto Region, Italy) two farming systems were considered: grassland-hay (H) vs. arable land-silage maize (M). Manure and crop products belonged to an internal flow, thus an annual farm gate balance of nitrogen (N) was carried out to determine the nutrient use efficiency (NUE) and surplus by using data from a survey. Surplus was determined as difference between inputs (I) and outputs (O) and NUE as ratio between O and I. The main I was represented by purchased concentrate, on the contrary fertilizer accounted only for low amounts. Surplus per surface unit was significantly higher in M-farms group than in H one (269 vs. 369 kg N per ha; P<0.01). Surplus referred to unit of fat corrected milk was significantly lower in M-farms (17.6 vs.15.6 kg of N per ton of FCM; P<0.01) leading to an higher N-NUE (0.260 vs. 0.278; P<0.05). |
| first_indexed | 2024-04-12T09:37:43Z |
| format | Article |
| id | doaj.art-29bde5ecf46d45e8a17c1aded9423337 |
| institution | Directory Open Access Journal |
| issn | 1594-4077 1828-051X |
| language | English |
| last_indexed | 2024-04-12T09:37:43Z |
| publishDate | 2010-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Italian Journal of Animal Science |
| spelling | doaj.art-29bde5ecf46d45e8a17c1aded94233372022-12-22T03:38:10ZengTaylor & Francis GroupItalian Journal of Animal Science1594-40771828-051X2010-01-0183s17818010.4081/ijas.2009.s3.178A comparison of nitrogen use efficiency and surplus in two dairy farms typologiesIgino AndrighettoGiorgio MarchesiniSeverino SegatoReferring to the Destra Brenta district (Veneto Region, Italy) two farming systems were considered: grassland-hay (H) vs. arable land-silage maize (M). Manure and crop products belonged to an internal flow, thus an annual farm gate balance of nitrogen (N) was carried out to determine the nutrient use efficiency (NUE) and surplus by using data from a survey. Surplus was determined as difference between inputs (I) and outputs (O) and NUE as ratio between O and I. The main I was represented by purchased concentrate, on the contrary fertilizer accounted only for low amounts. Surplus per surface unit was significantly higher in M-farms group than in H one (269 vs. 369 kg N per ha; P<0.01). Surplus referred to unit of fat corrected milk was significantly lower in M-farms (17.6 vs.15.6 kg of N per ton of FCM; P<0.01) leading to an higher N-NUE (0.260 vs. 0.278; P<0.05).http://www.aspajournal.it/index.php/ijas/article/view/823Dairy cow, Farming system, NUE, Nitrogen balance. |
| spellingShingle | Igino Andrighetto Giorgio Marchesini Severino Segato A comparison of nitrogen use efficiency and surplus in two dairy farms typologies Italian Journal of Animal Science Dairy cow, Farming system, NUE, Nitrogen balance. |
| title | A comparison of nitrogen use efficiency and surplus in two dairy farms typologies |
| title_full | A comparison of nitrogen use efficiency and surplus in two dairy farms typologies |
| title_fullStr | A comparison of nitrogen use efficiency and surplus in two dairy farms typologies |
| title_full_unstemmed | A comparison of nitrogen use efficiency and surplus in two dairy farms typologies |
| title_short | A comparison of nitrogen use efficiency and surplus in two dairy farms typologies |
| title_sort | comparison of nitrogen use efficiency and surplus in two dairy farms typologies |
| topic | Dairy cow, Farming system, NUE, Nitrogen balance. |
| url | http://www.aspajournal.it/index.php/ijas/article/view/823 |
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