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| Fortune, S; Robinson, J S; Watson, C A; Philipps, L; Conway, J S; Stockdale, E A. |
| Effective use and recycling of manures together with occasional and judicious use of supplementary fertilizing materials forms the basis for management of phosphorus (P) and potassium (K) within organic farming systems. Replicated field trials were established at three sites across the UK to compare the supply of P and K to grass–clover swards cut for silage from a range of fertilizing materials, and to assess the usefulness of routine soil tests for P and K in organic farming systems. None of the fertilizing materials (farmyard manure, rock phosphate, Kali vinasse, volcanic tuff) significantly increased silage yields, nor was P offtake increased. However, farmyard manure and Kali vinasse proved effective sources of K to grass and clover in the short to... |
| Tipo: Journal paper |
Palavras-chave: Nutrient turnover; "Organics" in general; Soil; Farming Systems; Farm nutrient management. |
| Ano: 2005 |
URL: http://orgprints.org/7702/1/ref_paper_LP_Journal_Soil_Use.pdf |
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| Firth, C; Philipps, L; Stagl, S; Benton, T; Brown, K; Buton, R; Carver, S; Davies, B; Gibbon, D; Godwin, R; Kunin, B; Rigiby, D; Sait, S; Schmutz, U. |
| The impacts associated with alternative methods of agricultural production, and the factors that drive their adoption, are critically dependent on the scale at which they are applied. Using organic farming as a case study, this project operating from 2006–2009 in the UK, will undertake an integrated assessment of scale effects by studying matched sets of farms situated in landscapes with high and low concentrations of organic farming. Clusters of organic and conventional farms to work with have been identified in the South West and Midlands region of England. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Environmental aspects; Social aspects; Farm economics. |
| Ano: 2006 |
URL: http://orgprints.org/10222/1/An_integrated_analysis_of_scale_effects_in_alternative_agricultural_systems.pdf |
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