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Utilization of nitrogen in legume-based mobile green manures stored as compost or silage

Sørensen, Peter; Kristensen, E.; Odokonyero, K. and Petersen, S.O. (2013) Utilization of nitrogen in legume-based mobile green manures stored as compost or silage. 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. 157-158.

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Summary

The utilization of nitrogen (N) in green manure leys can be improved by harvesting, storage and spreading of the plant material as manure in other crops. By green manure storage as silage, storage losses of N are lower than by composting. Also, a relatively high fertilizer value of silage N is achievable depending on the C/N ratio of the material. Nitrogen availability in green manure leys is higher after storage as silage compared to composting. Use of mobile green manures is mainly relevant in arable cropping systems without livestock where utilization of the roughage for animal feed or biogas production is impossible, as costs for ley/roughage harvest and transport can be relatively high. Our study showed that surface application of green manure silage to growing crops can damage plants and is therefore not recommended, whereas incorporation of silage before sowing has significant positive effects on crop yields.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Agrovoc keywords:
Language
Value
URI
English
Arable farming
http://aims.fao.org/aos/agrovoc/c_36528
English
Green manures
http://aims.fao.org/aos/agrovoc/c_3375
English
Nitrogen
http://aims.fao.org/aos/agrovoc/c_5192
English
Silage
http://aims.fao.org/aos/agrovoc/c_7060
English
Composting
http://aims.fao.org/aos/agrovoc/c_15956
Subjects: Crop husbandry > Production systems > Pasture and forage crops
Crop husbandry > Composting and manuring
Farming Systems > Farm nutrient management
Research affiliation: Denmark > Organic RDD 1 > HighCrop
International Conferences > 2013: NJF Seminar 461 - Organic farming systems as a driver for change
ISSN:1653-2015
Deposited By: Sørensen, Peter
ID Code:24575
Deposited On:06 Nov 2013 21:34
Last Modified:14 Mar 2014 08:31
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted

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