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Download or read book Revue Agronomique Canadien written by and published by . This book was released on 1925 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific Agriculture written by and published by . This book was released on 1927 with total page 850 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Revue Agronomique Canadien written by and published by . This book was released on 1930 with total page 928 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analyse chimique des sols written by Clément Mathieu and published by . This book was released on 2003 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ce manuel pratique présente un inventaire détaillé et raisonné des analyses chimiques des sols réalisées en laboratoire. La caractérisation des sols et la compréhension de leur dynamique nécessitent en effet, outre des interventions in situ, des mesures et des analyses en laboratoire, notamment par les méthodes dites " classiques ". Répondant aux besoins d'informations actualisées les concernant, ce volume décrit ces méthodes choisies en 14 rubriques qui abordent successivement, après avoir rappelé l'importance des prélèvements sur le terrain et de la préparation des échantillons de terre : les mesures du pH ; le dosage du carbone organique; le dosage de l'azote total ; le dosage de l'azote ammoniacal et de l'azote nitrique ; le dosage du calcaire total et du calcaire actif et la détermination du pouvoir chlorosant ; le dosage du gypse ; le dosage de la salinité totale; le dosage des sols solubles ; la mesure de la capacité d'échange cationique ; le dosage des cations échangeables ; le dosage de l'acidité d'échange ; le dosage du phosphore ; le dosage du fer, de l'aluminium et du manganèse ; le dosage des oligoéléments et des éléments traces. Chaque rubrique est introduite par un rappel des concepts et des définitions du domaine analysé. Ce rappel permet de fixer les limites des méthodes présentées, d'évaluer les avantages et les inconvénients de leur usage. Les auteurs s'appuient également sur leurs expériences de terrain diversifiées pour proposer des choix appropriés. Après avoir exposé les méthodes, le matériel nécessaire et les modes opératoires, ils présentent des résultats. Analyse chimique des sols s'applique à l'analyse des sols en régions climatiques tempérées, méditerranéennes, arides ou tropicales. II s'adresse aux chercheurs en sciences de la Terre, aux professionnels de l'agriculture, de l'aménagement du territoire, de la protection des milieux naturels et des laboratoires d'analyses agréés, intervenant dans le cadre de programmes concernant les ressources en sols, les productions agricoles, la conservation du milieu ou de programmes de recherche. II est également indispensable aux enseignants et étudiants en pédologie, en agronomie et en science de l'environnement.

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Download or read book Transactions of the second commission of the International Society of Soil Science written by International Society of Soil Science. Second Commission and published by . This book was released on 1927 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comptes Rendus de la Deuxi me Commission de L Association Internationale de la Science Du Sol written by International Society of Soil Science. Second Commission and published by . This book was released on 1927 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comptes Rendus written by International Society of Soil Science. Second Commission and published by . This book was released on 1927 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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