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Dissertation
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Swine --- Young animals --- Weaning --- Colostrum --- immunity --- intestines --- microbial flora --- blood --- Feed conversion efficiency --- side effects --- Morphologie
Book
Year: 2004 Publisher: Amsterdam : Elsevier,
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Soil biology --- microbial flora --- Soil fauna --- Rhizosphere. --- Rhizosphere --- Symbiosis --- cycling --- methods --- Measurement
Dissertation
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water --- industry --- Copper --- Silver --- Zinc --- microbial flora --- disinfection --- Ozone --- Ultraviolet radiation
Article
Year: 2004 Publisher: [S.l.] : [s.n.],
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Beef cattle --- Digestible nitrogen --- Energy metabolism --- Fermentation --- Rumen --- microbial flora --- feeding systems
Dissertation
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Acid soils --- Sandy soils --- soil fertility --- Soil biology --- organic matter --- Phosphorus --- soil chemicophysical properties --- Composts. --- Composts --- microbial flora --- Belgium
Dissertation
Year: 2004
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The present study was carried out to identify the interactions of soil components with soil phosphorus in temperate regions. Assessing by multi-disciplinary approaches has proved to be fundamental to fully understanding the physical chemistry and biological behaviour of soil phosphorus through the diversity of the studied soil samples and the nature of the association between its organic and inorganic constituents. The objective of this study is met by investigating the totality of the phosphorus cycle. Indeed, each compartment of P is defined by its size ; the distribution and the origin of the variability of the P forms are discussed ; the influence of physico-chemical conditions on the reactivity of solution P is demonstrated ; the potential supply of available soil P and the performance of barley in relation to soil phosphoric status were estimated ; and the variations in active organic P resulting from the interactions between the microbial biomass and their environment were evaluated. These data are key requirements for assessing soil quality and health, which are useful to specialists, producers and policy makers in identifying agricultural and land-use management systems which are profitable and will sustain natural resources for future generations. A wealth of comprehensive and conclusive information has been gained from this study, when the P cycle is integrated with different soil properties, along environmental gradients, through differences in cultivation and soil development. This approach is designed to be holistic to cover a wide range of environmental and agro-ecological applications, and to build, eventually, a reference system on that topic.
Temperate zones --- Phosphorus --- Soil biology --- Nutrient availability --- soil chemicophysical properties --- Barley --- Plant response --- soil fertility --- biomass --- microbial flora
Dissertation
ISBN: 9059890345 Year: 2004 Publisher: Gent Universiteit Gent. Faculteit van de Landbouwkundige en Toegepaste Biologische Wetenschappen
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Proefschriften --- Thèses --- Sol argileux --- Clay soils --- Sol sableux --- Sandy soils --- Pollution du sol --- Soil pollution --- Hydrocarbure --- Hydrocarbons --- Biodégradation --- Biodegradation --- Oxygène --- Oxygen --- Dioxyde de carbone --- carbon dioxide --- Azote --- Nitrogen --- Porosité du sol --- Soil pore system --- Bilan hydrique du sol --- Soil water balance --- Flore microbienne --- microbial flora --- Modèle --- Models --- Theses --- Sciences and engineering --- biological sciences --- agriculture --- soil science --- earth and environmental sciences --- environmental sciences --- physical sciences --- applied sciences --- engineering --- environmental --- soil science. --- environmental sciences. --- environmental. --- Biodegradation. --- Biological sciences --- Agriculture --- Soil science. --- Earth and environmental sciences --- Environmental sciences. --- Physical sciences --- Applied sciences --- Engineering --- Environmental.
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