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  • The Influence of Sewage Sludge Application on Physical and Biological Properties of Soils

    Proceedings of a Seminar organized jointly by the Commission of the European Communities, Directorate-General for Science, Research and Development and the Bayerische Landesanstalt für Bodenkultur und Pflanzenbau, Munich, Federal Republic of Germany,

    Modifié par G. Catroux, P. L'Hermite, E. Suess ...
    The agricultural value of sewage sludges is well known and a lot of published data has demonstrated the positive effects of sludge appli­ cations on plant growth and yield. These effects are probably due mainly to the nitrogen and phosphorus content of sewage sludges. But, as sludges are more organic than mineral, we can expect an effect of the organic matter added to the soil on soil fertility. ... En savoir plus

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    The successful conservation of bird species relies upon our understanding of their habitat use and requirements. In the coming decades the importance of such knowledge will only grow as climate change, the development of new energy sources and the needs of a growing human population intensify the, already significant, pressure on the habitats that birds depend on. Drawing on valuable recent ... En savoir plus

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  • Baby Seeds To Big Plants: Botany for Kids | Nature for Children Edition

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    The first step to getting your child involved in gardening is to learn about the principles of botany. This is where this book will come in handy. As an excellent introduction to the subject, this book comes complete with pictures and texts. It has been formatted in a way that would easily capture and absorb a child's attention. Secure a copy now! ... En savoir plus

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  • Advances in Plant Biopesticides

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    This book provides state-of-the art analysis, never done before in Egypt, on agro-climatic zones level. This study deals with how the national cropping pattern can be modified to overcome abiotic stresses, such as water scarcity, induced salinity and climate change to reduce their negative effects on food production. To this end, different cropping patterns are suggested.This study can be a ... En savoir plus

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