Nutrient cycling on organic farms

作者: Elizabeth Stockdale , Christine Watson , Keith Goulding , Sharon Fortune

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摘要: This paper examines the sustainability of nutrient cycling on organic farms. After a brief consideration principles in agriculture, data soil P and K indices farm budgets is used to assess integrity cycling, including some losses environment. An attempt made wider farming context limited amount recycling possible.

参考文章(26)
P.J.A. Withers, A. Breeuwsma, P.A.I. Ehlert, H. Tunney, Phosphorus fertilizer strategies: present and future Phosphorus loss from soil to water. Proceedings of a workshop, Wexford, Irish Republic, 29-31 September 1995.. pp. 177- 203 ,(1997)
G. Heckrath, P. C. Brookes, P. R. Poulton, K. W. T. Goulding, Phosphorus Leaching from Soils Containing Different Phosphorus Concentrations in the Broadbalk Experiment Journal of Environmental Quality. ,vol. 24, pp. 904- 910 ,(1995) , 10.2134/JEQ1995.00472425002400050018X
CM Penfold, MS Miyan, TG Reeves, IT Grierson, Biological farming for sustainable agricultural production Australian Journal of Experimental Agriculture. ,vol. 35, pp. 849- 856 ,(1995) , 10.1071/EA9950849
R.J. Skinner, A.D. Todd, Twenty-five years of monitoring pH and nutrient status of soils in England and Wales Soil Use and Management. ,vol. 14, pp. 162- 169 ,(2006) , 10.1111/J.1475-2743.1998.TB00144.X
Dick Cobb, Ruth Feber, Alan Hopkins, Liz Stockdale, Tim O'Riordan, Bob Clements, Les Firbank, Keith Goulding, Steve Jarvis, David Macdonald, Integrating the environmental and economic consequences of converting to organic agriculture: evidence from a case study Land Use Policy. ,vol. 16, pp. 207- 221 ,(1999) , 10.1016/S0264-8377(99)00023-X
I Scoones, C Toulmin, Soil nutrient balances: what use for policy? Agriculture, Ecosystems & Environment. ,vol. 71, pp. 255- 267 ,(1998) , 10.1016/S0167-8809(98)00145-5
ML Nguyen, RJ Haynes, KM Goh, Nutrient budgets and status in three pairs of conventional and alternative mixed cropping farms in Canterbury, New Zealand Agriculture, Ecosystems & Environment. ,vol. 52, pp. 149- 162 ,(1995) , 10.1016/0167-8809(94)00544-O
A. J. METSON, Methods of Chemical Analysis for Soil Survey Samples Soil Science. ,vol. 83, pp. 245- ,(1957) , 10.1097/00010694-195703000-00016