publication . Conference object . 2004

Nitrate leaching from organic and conventional crop production farms

Olesen, Jørgen E.; Berntsen, Jørgen; Petersen, Bjørn Molt; Kristensen, Ib Sillebak;
Open Access English
  • Published: 01 Jan 2004
Abstract
Farm accounting data from the Institute of Food Economics and from Central Agricultural Registers in Denmark were used to define the import of nitrogen (N) to farmed fields on conventional and organic arable farms to 129 and 51 kg N ha-1 yr-1, respectively. Based on the recorded distribution of crops, a generalised crop rotation was defined for each of the two farming systems. The crop rotation for the organic farm had a high share of spring cereals and additionally 20% grass-clover in the rotation, whereas the conventional rotation was dominated by cereals, primarily winter cereals. The FASSET model was used to simulate the N balance of these two crop rotations...
Subjects
free text keywords: Air and water emissions
Communities
Agricultural and Food Sciences
Socio-economic impact of digitalisation in rural areas
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Organic Eprints
Conference object . 2004
PURE Aarhus University
Conference object . 2004
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publication . Conference object . 2004

Nitrate leaching from organic and conventional crop production farms

Olesen, Jørgen E.; Berntsen, Jørgen; Petersen, Bjørn Molt; Kristensen, Ib Sillebak;