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Management affects nitrate leaching from organic farms

Askegaard, Margrethe and Eriksen, J. (2013) Management affects nitrate leaching from organic farms. In: Løes, Anne-Kristin; Askegaard, Margrethe; Langer, Vibeke; Partanen, Kirsi; Pehme, Sirli; Rasmussen, Ilse A.; Salomon, Eva; Sørensen, Peter; Ullvén, Karin and Wivstad, Maria (Eds.) Organic farming systems as a driver for change, NJF Report, no. 9 (3), pp. 47-48.

PDF - Accepted Version - English

Online at: http://www.njf.nu/filebank/files/20130827$203251$fil$4F15WCXLGK9vjP9XUSjP.pdf


Management decisions significantly affect nitrate-N leaching (N-leaching) from comparable organic fields. The main concern is field management during autumn and themanagement of grass leys. After ploughing-in fertility building crops, like grass-clover leys, effective catch crops are important during autumn and winter for at least two years on sandy soils. On farms with grazing animals the occurrence of “hot spots” should be avoided. These hot spots develop with uneven concentrations of animal manure combined with limited N-uptake in the ley. Management measures to minimize N-leachingmay conflicts with the farmers aim to produce high quality feed and/or to combat yield limiting perennial weeds. It may also conflict with the organic regulations for the grazing period of cows.

EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Agrovoc keywords:
EnglishCrop managementhttp://aims.fao.org/aos/agrovoc/c_16094
EnglishCatch cropshttp://aims.fao.org/aos/agrovoc/c_29684
EnglishOrganic agriculturehttp://aims.fao.org/aos/agrovoc/c_15911
Subjects: Crop husbandry > Crop combinations and interactions
Environmental aspects
Farming Systems > Farm nutrient management
Research affiliation: International Conferences > 2013: NJF Seminar 461 - Organic farming systems as a driver for change
Deposited By: Sørensen, Peter
ID Code:24517
Deposited On:06 Nov 2013 19:57
Last Modified:06 Nov 2013 19:57
Document Language:English
Refereed:Peer-reviewed and accepted

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