Agriculture Reference
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Hughes, J.C. and Gilkes, R.J. 1994. Rock phosphate dissolution and bicarbonate-soluble P in
some soils from south-western Australia. Australian Journal of Soil Research 32: 767-779.
Huston, M.A. 1993. Biological diversity, soils, and economics. Science 262: 1676-1680.
IFOAM 2002. IFOAM Basic Standards for Organic Production and Processing. International
Federation of Organic Agriculture Movements, Tholey-Theley, Germany.
Jakobsen, I., Gazey, C. and Abbott, L.K. 2001. Phosphate transport by communities of arbus-
cular mycorrhizal fungi in soil cores from annual pastures. New Phytologist 149: 93-103.
Jordahl, J.K. and Karlen, D.L. 1993. Comparison of alternative farming systems. III. Soil aggre-
gate stability. American Journal of Alternative Agriculture 8: 27-33.
Kahnt, G., Pfleiderer, H. and Hijazi, L.A. 1986. Effect of amelioration dosed of rock powder
and rock sand on growth of agricultural plants and on physical characteristics of sandy
and clay soil. Agronomy and Crop Science 157: 169-180.
Kanobo, I.A.K. and Gilkes, R.J. 1987. The role of soil pH in the dissolution of phosphate rock
fertilizers. Fertilizer Research 12: 165-174.
Kanobo, I.A.K. and Gilkes, R.J. 1988. The effect of particle size in North Carolina phosphate
rock on it dissolution in soil and on levels of bicarbonate-soluble phosphorus. Fertilizer
Research 15: 137-145.
Khasawneh, F.E. and Doll, E.C. 1978. The use of phosphate rock for direct application to soils.
Advances in Agronomy 30: 159-206.
Kirchmann, H. 1994. Biological dynamic agriculture - an occult form of agriculture? Journal
of Agricultural and Environmental Ethics 7: 173-187.
Kirchmann, H. and Bergström, L. 2001. Do organic farming systems reduce nitrate leaching?
Communications in Soil Science and Plant Analysis 32: 997-1028.
Kirchmann, H. and Ryan, M.H. 2004. Nutrients in organic farming - are there advantages
from the exclusive use of organic manures and untreated minerals? In: Fischer, T., Turner,
N., Angus, J., McIntyre, L., Robertson, M., Borrell, A. and Lloyd, D. (eds) New directions
for a diverse planet. Proceedings of the 4th International Crop Science Congress . 26 Sept-1
Oct. 2004, Brisbane, Australia. The Regional Institute, Gosford.
Kirchmann, H. and Thorvaldsson, G. 2000. Challenging targets for future agriculture.
European Journal of Agronomy 12: 145-161.
Korsæth, A. and Eltun, R. 2000. Nitrogen mass balances in conventional, integrated and eco-
logical cropping systems and the relationship between balance calculations and nitrogen
run off in an eight-year field experiment in Norway. Agriculture, Ecosystems and
Environment 79: 199-214 .
Kristensen, L., Stopes, C., Kolster, P. and Granstedt, A. 1995. Nitrogen leaching in ecological
agriculture: summary and recommendations. In: Nitrogen Leaching in Ecological
Agriculture . A.B. Academic Publishers, Great Britain. pp. 331-340.
Lampkin, N. 1990. Organic Farming. Farming Press Books, Ipswich.
Lee, K.E. and Pankhurst, C.E. 1992. Soil organisms and sustainable productivity. Australian
Journal of Soil Research 30: 855-892 .
Le Guillou, G. and Scharpé, A. 2000. Organic Farming - Guide to Community Rules. European
Community, Brussels.
Léon, L.A., Fenster, W.E. and Hammond, L.L. 1986. Agronomic potential of eleven phosphate
rocks from Brazil, Colombia, Peru, and Venezuela. Soil Science Society of America Journal
50: 798-802.
Leonardos, O.H., Fyfe, W.S. and Kronberg, B.I. 1987. The use of ground rocks in laterite sys-
tems: an improvement to the use of conventional soluble fertilizers? Chemical Geology 60:
361-370.
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