Agriculture Reference
In-Depth Information
Chadwick, D.R., Sneath, R.W., Phillips, V.R. and Pain, B.F. 1999. A UK inventory of nitrous
oxide emissions from farmed livestock.
Atmospheric
Environment
33: 3345-3354.
Clark, M.S., Horwarth, W.R., Shennan, C. and Scow, K.M. 1998. Changes in soil chemical
properties resulting from organic and low-input farming practices.
Agronomy
Journal
90:
662-671.
Clausen, M. and Larsen, A.B. 1997. S
mabiotoptaethed
I
okologiske
og
biodynamiske
jordbrug
I
Ostdanmark
Report
. Centre for Landscape Research, RUC, Roskilde.
Cole, C.V., Duxbury, J., Freney, J., Heinemeyer, O., Minami, K., Mosier, A., Paustian, K.,
Rosenberg, N., Sampson, N., Sauerbeck, D. and Zhao, Q. 1997. Global estimates of poten-
tial mitigation of greenhouse gas emissions by agriculture.
Nutrient
Cycling
in
Agroecosystems
49: 221-228.
Condron, L.M., Cameron, K.C., Di, H.J., Clough, T.J., Forbes, E.A., McLaren, R.G. and Silva,
R.G. 2000. A comparison of soil and environmental quality under organic and conven-
tional farming systems in New Zealand.
New
Zealand
Journal
of
Agricultural
Research
43:
443-466.
Cooke, G.W. 1967.
The
Control
of
Soil
fertility
. English Language Book Society and Crosby
Lockwood Staples, London.
Cormack, W.F. 2000.
Energy
use
in
organic
farming
systems
. Final report for project OF0182 for
the Department for Environment, Food and Rural Affairs. ADAS, Norfolk.
Crutzen, P.J. 1981. Atmospheric chemical processes of the oxides of nitrogen, including nitrous
oxide. In: Delwiche, J. (ed.)
Denitrification,
Nitrification
and
Nitrous
Oxide
. Wiley and
Sons, New York. pp. 17-44.
Dabbert, S. and Piorr, A. 1999. Ökologischer Landbau. In: H.-G. and Dabbert, S. (eds)
Handbuch
zum
Gewässerschutz
in
der
Landwirtschaft
. Frede, Ecomed Verlagsgesellschaft,
Landsberg.
Daniel, J., Davis, J. and Grant, L. 2002.
Long-term
Organic
Farming
Impacts
on
Soil
Fertility
.
Organic Farming Research Foundation, Santa Cruz.
David, C., Fabre, B. and Gautronneau, Y. 1996. Towards modelling the conversion of stockless
farming systems to organic farming. On-farm research in the South East of France. In:
Kristensen, N.H. and Hogh-Jensen, H. (eds)
New
Research
in
Organic
Agriculture,
Down
to
Earth
and
Further
Afield:
Proceedings
of
the
11th
International
Scientific
IFOAM
Conference
.
IFOAM, Copenhagen. pp. 23-27.
DEPA [Danish Environmental Protection Agency] 1998.
The
Bichel
Committee
.
Report
from
the
Main
Committee
. <http://www.mst.dk/udgiv/Publications/1998/87-7909-445-7/html/
default_eng.htm>. Accessed 18 August 2005.
Djigma, A., Nikiema, E., Lairon, D. and Ott, P. 1990.
Proceedings
of
the
IFOAM
Seventh
International
Scientific
Conference,
2-5
.
January
1989,
Ouagadougou,
Bourkina
Faso
. IFOAM,
Tholey-Theley, Germany.
Drinkwater, L.E., Letourneau, D.K., Workneh, F., van Bruggen, A.H.C. and Shennan, C. 1995.
Fundamental differences between conventional and organic tomato agroecosystems in
California.
Ecological
Applications
5(4): 1098-1112.
Drinkwater, L.E., Wagoner, P. and Sarrantonio, M. 1998. Legume-based cropping systems have
reduced carbon and nitrogen losses.
Nature
396: 262-264.
Edwards, C.A., Lal, R., Madden, P., Miller, R.H. and House, G. 1990. Research on integrated
arable farming and organic mixed farming in the Netherlands. In: Edwards, C.A., Lal, R.,
Madden, P., Miller, R.H. and House, G. (eds)
Sustainable
Agricultural
Systems
. Soil and
Water Conservation Society, Ankeny. pp 287-296.
Edwards, A.C. and Withers, P.J.A. 1998. Soil phosphorus management and water quality: A
UK perspective.
Soil
Use
and
Management
14, (Supplement): 124-130.