Agriculture Reference
In-Depth Information
Richter, S. and Debruck, J. 2001. Einfluß der Reihenweite auf Ertrag und Qualität von
Winterweizen. In: Reents, H.J. (ed.)
Beiträge zur 6. Wissenschaftstagung zum Ökologischen
Landbau - von Leit-Bildern zu Leit-Linien
. Verlag Dr Köster, Berlin. pp. 233-236.
Robson, M.C., Fowler, S.M., Lampkin, N.H., Leifert, C., Leitch, M., Robinson, D., Watson,
C.A. and Litterick, A.M. 2002. The agronomic and economic potential of break crops for
ley/arable rotations in temperate organic agriculture.
Advances in Agronomy
77: 369-427.
Runham, S.R., Town, S.J. and Fitzpatrick, J.C. 2000. Evaluation over four seasons of a paper
mulch used for weed control in vegetables.
Acta Horticulturae
513: 193-201.
Russo, V.M. 1992. Effects of planting date and spray-on mulch on yield of eggplant cultivars.
Journal of Sustainable Agriculture
3(1): 41-50.
Sandhu, H.S., Wratten, S.D. and Cullen, R. 2005. Evaluating ecosystem services on farmland:
a novel, experimental, 'bottom-up' approach. In:
Shaping Sustainable Systems
.
Proceedings
of the 15th IFOAM Organic World Congress
. 20-23 September 2005 Adelaide South
Australia. International Federation of Organic Agriculture Movements, Bonn.
Schäfer, W., Väisänen, J. and Pihala, M. 2001.
Technique of Green Mulch Spreading
. Agricultural
Engineering Research, MTT Agrifood Research, Vakola.
Schimpf, W. and Lundberg-Schimpf, T. 2005.
Our Farm
. Flying-Two Medicinal and Aromatic
Herbs, Kelowna, <http://www.bcherbs.net/ourfarm.html>. Accessed 7/5/05.
Schjønning, P., Elmholt, S., Munkholm, L.J. and Debosz, K. 2002. Soil quality aspects of humid
sandy loams as influenced by organic and conventional long-term management.
Agriculture, Ecosystems and Environment
88(3): 195-214.
Schmidt, H. and Leithold, G. 2005. Ökologischer Ackerbauversuch Gladbacherhof - Effekt von
Fruchtfolge und Bodenbearbeitung in der ersten Rotation. In: Heß, J. and Rahmann, G.
(eds)
Ende der Nische - Beiträge zur 8
. Wissenschaftstagung Ökologischer Landbau, Kassel
University Press, Kassel. pp. 255-258.
Schonbeck, M., Stephen, H., DeGregorio, R., Mangan, F., Guillard, K., Sideman, E., Herbst, J.
and Jaye, R. 1993. Cover cropping systems for brassicas in the Northeastern United States:
1. Cover crop and vegetable yields, nutrients and soil conditions.
Journal of Sustainable
Agriculture
3: 105-132.
Scopel, A.L., Ballare, C.L. and Radosevich, S.R. 1994. Photostimulation of seed germination
during soil tillage.
New Phytologist
126(1): 145-152.
Shannon, D., Sen, A.M. and Johnson, D.B. 2002. A comparative study of the microbiology of
soils managed under organic and conventional regimes.
Soil Use and Management
18(3
[Supplement]): 274-283.
Shepherd, M.A., Harrison, R. and Webb, J. 2002. Managing soil organic matter - implications for
soil structure on organic farms.
Soil Use and Management
18(3 [Supplement]): 284-292.
Sheppard, A.W. 2000. Weed ecology and population dynamics. In: Sindel, B.M. (ed.)
Australian
Weed Management Systems
. R.G. and F.J. Richardson, Melbourne. pp. 39-60.
Smith, B.J., Kirkegaard, J.A. and Howe, G.N. 2004a. Impacts of Brassica break crops on soil
biology and yield of following wheat crops.
Australian Journal of Agricultural Research
55(1): 1-11.
Smith, D.R., Gilliam, C.H., Edwards, J.H., Eakes, D.J. and Williams, J.D. 1997. Recycled waste
paper as a landscape mulch.
Journal of Environmental Horticulture
15(4): 191-196.
Smith, E.G., Clapperton, M.J. and Blackshaw, R.E. 2004b. Profitability and risk of organic pro-
duction systems in the northern Great Plains.
American Journal of Alternative Agriculture
19(3): 152-158.
Stapleton, J.J., Molinar, R.H., Lynn-Patterson, K., McFeeters, S.K. and Shrestha, A. 2005. Soil
solarization provides weed control for limited-resource and organic growers in warmer
climates.
California Agriculture
59: 284-289.
