|
|
|
|
|
| Wilson, P. |
| In England and Wales purification tanks are built to comply with broad operating criteria specified by the Ministry of Agriculture Fisheries and Food. These have been developed over many years with limited availability of data and has resulted in design restrictions which have limited the economic viability and effectiveness of the tanks. The approved method for the large scale purification of mussels has been to spread them in a single shallow layer in large outdoor tanks with access to a supply of clean sea water. This results in a purification plant that requires a lot of land, is labour intensive and generally remote from the harvesting area. In addition such tanks are exposed to ambient conditions and can result in filtration activity, upon which... |
| Tipo: Text |
Palavras-chave: ANE; British Isles; England Escherichia coli Crassostrea gigas Bivalvia Bacteria Tanks Self purification Storage conditions Oyster culture. |
| Ano: 1992 |
URL: http://archimer.ifremer.fr/doc/1992/acte-1626.pdf |
| |
|
|
| Sparkles, D L; Rollett, A J; Wilson, P. |
| Huxham et al. (2005) reported the impacts of seven conversion strategies on the first organic crop (winter wheat). This paper investigates the effect of the conversion strategies on the second (winter beans) and third (winter oats) organic crops, thereby extending the analysis throughout the fi rst complete rotation. Conversion strategy had a significant impact on organic bean yield, which ranged from 2.84 to 3.62 t ha-1 and organic oat yield, which ranged from 3.24 to 4.17 t ha-1. In the organic bean crop, weed abundance prior to harvest, along with soil texture, accounted for 70% of yield variation. For the oats, soil mineral nitrogen in November together with weed abundance in April, accounted for 72% of the variation in yield. Annual average gross... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Cereals; Pulses and oilseeds. |
| Ano: 2006 |
URL: http://orgprints.org/10208/1/The_legacy_of_stockless_organic_conversion_strategies.pdf |
| |
|
|
|
