Agriculture Reference
In-Depth Information
Thorup-Kristensen, K. 2001. Are differences in root growth of nitrogen catch crops important
for their ability to reduce soil nitrate-N content, and how can this be measured? Plant and
Soil 230: 185-195.
Treadwell, D.D., McKinney, D.E. and Creamer, N.G. 2003. From philosophy to science: a brief
history of organic horticulture in the United States. Hortscience 35: 1009-1014.
Verkleij, F.N. 1992. Seaweed extracts in agriculture and horticulture: a review. Biological
Agriculture and Horticulture 8: 309-324.
von Fragstein, P. and Vogtmann, H. 1983. Organic extracts for the treatment of rock powder
fertilizers in biological agriculture. Biological Agriculture and Horticulture 1: 169-180.
von Fragstein, P., Pertl, W. and Vogtmann, H. 1988. Artificial weathering of silicate rock pow-
ders. Zeitschrift für Pflanzenernähung und Bodenkunde 151: 141-146.
von Mersi, W., Kuhnert-Finkernagel, R. and Schinner, F. 1992. The influence of rock powders
in microbial activity of three forest soils. Zeitschrift für Pflanzenernähung und Bodenkunde
155: 29-33.
Wander, M.M., Hedrick, D.S., Kaufman, D., Traina, S.J., Stinner, B.R., Kehrmayer, S.R. and
White, D.C. 1995. The functional significance of the microbial in organic and convention-
ally managed soils. Plant and Soil 170: 87-97.
Wang, J.S., Zhang, F.S., Cao, Y.P. and Zhang, X.L. 2000. Effect of plant types on release of min-
eral potassium from gneiss. Nutrient Cycling in Agroecosystems 56: 37-44.
Watson, C.A., Atkinson, D., Gosling, P., Jackson, LR. and Rayns, F.W. 2002a. Managing soil
fertility in organic farming systems. Soil Use and Management 18: 239-247.
Watson, C.A., Bengtsson, H., Ebbesvik, M., Løes, A.-K., Myrbeck, A., Salomon, E., Schroder, J.
and Stockdale, E.A. 2002b. A review of farm-scale nutrient budgets for organic farms as a
tool for management of soil fertility. Soil Use and Management 18: 264-273.
Watts, C.W., Whalley, W.R., Longstaff, D.J., White, R.P., Brooke, P.C and Whitmore, A.P. 2001.
Aggregation of a soil with different cropping histories following the addition of organic
materials. Soil Use and Management 17: 263-268.
Welbaum, G.E., Sturtz, A.V., Dong, Z. and Nowak, J. 2004. Managing soil microorganisms to
improve productivity of agro-ecosystems. Critical Reviews in Plant Sciences 23: 175-193.
Wells, A.T., Chan, K.Y. and Cornish, P.S. 2000. Comparison of conventional and alternative
vegetable farming systems on the properties of a yellow earth in New South Wales.
Agriculture, Ecosystem and Environment 80: 47-60.
Werner, M.R. 1997. Soil quality characteristics during conversion to organic orchard manage-
ment. Applied Soil Ecology 5: 151-167.
Yeates, G.W., Bardgett, R.D., Cook, R., Hobbs, P.J., Bowling, P.J. and Potter, J.F. 1997. Faunal
and microbial diversity in three Welsh grassland soils under conventional and organic
management regimes. Journal of Applied Ecology 34: 453-470.
Search WWH ::




Custom Search