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Ajustement De La Fertilisation Azotee Des Cultures Sous Climat Nordique
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Book Synopsis Ajustement de la fertilisation azotée des cultures sous climat nordique by : Canada. Agriculture and Agri-Food Canada
Download or read book Ajustement de la fertilisation azotée des cultures sous climat nordique written by Canada. Agriculture and Agri-Food Canada and published by . This book was released on 1997 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Québec (Province). Ministère de l'agriculture, des pêcheries et de l'alimentation Publisher : ISBN 13 : Total Pages :5 pages Book Rating :4.:/5 (49 download)
Book Synopsis Ajustement de la fertilisation azotée des cultures sous climat nordique by : Québec (Province). Ministère de l'agriculture, des pêcheries et de l'alimentation
Download or read book Ajustement de la fertilisation azotée des cultures sous climat nordique written by Québec (Province). Ministère de l'agriculture, des pêcheries et de l'alimentation and published by . This book was released on 1997 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fonctionnement biologique des sols agricoles en période hivernale et gestion de l'azote en climat nordique by : Marie-Michelle Gamache
Download or read book Fonctionnement biologique des sols agricoles en période hivernale et gestion de l'azote en climat nordique written by Marie-Michelle Gamache and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: L'objectif de cet essai est d'évaluer les pratiques actuelles en matière d'épandage d'engrais organique en postrécolte des cultures annuelles ou l'automne sur des cultures pérennes, dans le contexte agricole nordique québécois, par rapport aux connaissances scientifiques actuelles sur les processus microbiologiques du sol ayant cours durant l'hiver et lors du dégel printanier, le tout dans un cadre de gestion agronomique et environnementale de l'azote. Le contexte québécois de la gestion des engrais organiques implique des contraintes particulières et des enjeux importants à l'échelle de la ferme et sur le plan environnemental. Les applications d'engrais organiques à la fin de la saison de croissance sont couramment effectuées et laissent de grandes quantités d'éléments nutritifs au sol ou à sa surface, sans qu'il y ait prélèvement par une quelconque culture, et ce durant une longue période. Les recommandations agronomiques visent à optimiser la valorisation des éléments nutritifs et à limiter leurs pertes dans l'environnement au cours de l'hiver et de la période de dégel. Les risques de pertes les plus importants découlent des pertes par lessivage des nitrates (NO[indice inférieur 3][indice supérieur -]) vers les eaux souterraines et des émissions gazeuses de protoxyde d'azote (N[indice inférieur 2]O) et sont intrinsèquement contrôlés par les microorganismes du sol. Les connaissances scientifiques actuelles quant aux processus biologiques du sol sous conditions hivernales ont servi à évaluer les pratiques et les recommandations agronomiques relatives aux épandages postrécoltes. Dans le cas des pertes d'azote sous forme de NO[indice inférieur 3][indice supérieur -], l'analyse indique que les effets des pratiques culturales actuelles sur les microorganismes du sol et leurs activités sont généralement cohérents avec les objectifs de réduction des pertes, bien que quelques points aient été questionnés et devraient faire l'objet de recherche scientifique plus élaboré. Dans le cas des émisssions de N[indice inférieur 2]O, beaucoup de connaissances restent à acquérir et il semble que plusieurs facteurs couramment retrouvés dans le contexte agricole québécois ont le potentiel de les favoriser. Des pistes de solutions pour limiter ces pertes ont été suggérées et devraient être soumises à des évaluations scientifiques spécifiques. Des sujets de reherche ont été ciblés afin de combler les lacunes observées au niveau des connaissances scientifiques. Les efforts de recherche sur les effets des inhibiteurs de nitrification et des activités microbiennes sur l'azote du sol sous climat nordique semblent présenter une plus-value intéressante.
Download or read book Agronomie written by and published by . This book was released on 1985 with total page 1058 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Etymological Dictionary of the French Language by : Auguste Brachet
Download or read book An Etymological Dictionary of the French Language written by Auguste Brachet and published by . This book was released on 1882 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Faecal Sludge Management by : Linda Strande
Download or read book Faecal Sludge Management written by Linda Strande and published by IWA Publishing. This book was released on 2014-08-15 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is estimated that literally billions of residents in urban and peri-urban areas of Africa, Asia, and Latin America are served by onsite sanitation systems (e.g. various types of latrines and septic tanks). Until recently, the management of faecal sludge from these onsite systems has been grossly neglected, partially as a result of them being considered temporary solutions until sewer-based systems could be implemented. However, the perception of onsite or decentralized sanitation technologies for urban areas is gradually changing, and is increasingly being considered as long-term, sustainable options in urban areas, especially in low- and middle-income countries that lack sewer infrastructures. This is the first book dedicated to faecal sludge management. It compiles the current state of knowledge of the rapidly evolving field of faecal sludge management, and presents an integrated approach that includes technology, management, and planning based on Sandecs 20 years of experience in the field. Faecal Sludge Management: Systems Approach for Implementation and Operation addresses the organization of the entire faecal sludge management service chain, from the collection and transport of sludge, and the current state of knowledge of treatment options, to the final end use or disposal of treated sludge. The book also presents important factors to consider when evaluating and upscaling new treatment technology options. The book is designed for undergraduate and graduate students, and engineers and practitioners in the field who have some basic knowledge of environmental and/or wastewater engineering.
Author :International Livestock Research Institute Publisher :ILRI (aka ILCA and ILRAD) ISBN 13 :9789291460038 Total Pages :268 pages Book Rating :4.4/5 (6 download)
Book Synopsis Livestock Policy Analysis by : International Livestock Research Institute
Download or read book Livestock Policy Analysis written by International Livestock Research Institute and published by ILRI (aka ILCA and ILRAD). This book was released on 1995-01-01 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Policy concepts; Identification of policy issues; Production systems, supply and demand; Market, price and trade policies; Marketing and distribution systems; Budget and manpower planning; Land tenure police for the livestock sector; Policy analysis report writing and communication; Livestock production and marketing in alphabeta - a case study.
Author :Food and Agriculture Organization of the United Nations Publisher :Food & Agriculture Org. ISBN 13 :9789251045411 Total Pages :20 pages Book Rating :4.0/5 (454 download)
Book Synopsis What is the Code of Conduct for Responsible Fisheries? by : Food and Agriculture Organization of the United Nations
Download or read book What is the Code of Conduct for Responsible Fisheries? written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2001 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The actual Code of conduct is also available (1996) (ISBN 9251038341).
Download or read book El Niño written by Bruno Voituriez and published by UNESCO. This book was released on 2000 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: El Nino, caprice of the heavens, scapegoat for every calamity? The general public cannot really understand what is behind the El Nino phenomenon. The book offers a tour of the Earth's climate to understand one of its normal but extreme components.
Download or read book The Chickpea written by Mohan C. Saxena and published by . This book was released on 1987 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Olive Growing written by and published by . This book was released on 2010 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Phonetic Dictionary of the English Language by : Hermann Michaelis
Download or read book A Phonetic Dictionary of the English Language written by Hermann Michaelis and published by . This book was released on 1913 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Calculation of Demographic Parameters in Tropical Livestock Herds by : Matthieu Lesnoff
Download or read book Calculation of Demographic Parameters in Tropical Livestock Herds written by Matthieu Lesnoff and published by Springer. This book was released on 2014-05-27 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: Having indicators to assess the effect of zootechnical, sanitary, economic or political intervention or the impact of environmental risks makes it possible to draw up strategies for improving domestic animal populations. This handbook is a compilation of the main concepts relating to the definition and calculation of demographic rates for largely non-intensive tropical animal farms. It is intended to be educational, and should help students, technicians, engineers, researchers and development staff to understand the definitions and formulas encountered in the literature more clearly and make them more self-sufficient in terms of analyses.
Book Synopsis Cassava-Mealybug Interactions by : Paul-André Calatayud
Download or read book Cassava-Mealybug Interactions written by Paul-André Calatayud and published by IRD Editions. This book was released on 2006 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most basic information on plant-mealybug interactions during the last decade has come from research on the cassava Manihot esculenta Crantz (Euphorbiaceae) system with two mealybug species, namely Phenacoccus manihoti Matile-Ferrero and Phenacoccus herreni Cox and Williams (Sternorrhyncha: Pseudococcidae). Both these insects cause severe damage to cassava in Africa and South America, respectively. This book reviews these interactions (plant selection by the insects, nutritional requirements
Author :Food and Agriculture Organization of the United Nations Publisher :Food & Agriculture Org. ISBN 13 :9789251039717 Total Pages :52 pages Book Rating :4.0/5 (397 download)
Book Synopsis Aquaculture Development by : Food and Agriculture Organization of the United Nations
Download or read book Aquaculture Development written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 1997 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides annotations to the Principles of Article 9 of the Code of Conduct for Responsible Fisheries. These annotations are meant to serve as general guidance, and should be taken as suggestions or observations intended to assist those interested in identifying their own criteria and options for actions, as well as partners for collaboration, in support of sustainable aquaculture development.
Book Synopsis Terminology for Grazing Lands and Grazing Animals by : Forage and Grassland Terminology Committee
Download or read book Terminology for Grazing Lands and Grazing Animals written by Forage and Grassland Terminology Committee and published by . This book was released on 1991 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two years in the making, this book represents the combined effort of scientists in Australia, New Zealand, and the United States and of some 16 organizations and agencies including the American Forage and Grassland Council. It has been adopted by these 16 and numerous other organizations world-wide as the definitive standard for word usage in the science.
Book Synopsis Protected Area Management by : Barbara Sladonja
Download or read book Protected Area Management written by Barbara Sladonja and published by BoD – Books on Demand. This book was released on 2012-08-08 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Protected areas are at the base of the most national and international conservation strategies. Due to the many unpredictable elements in ecology matters, each protected area requires a case-specific set of guidelines but a common issue is how to cope with human interaction. The management of protected areas is replete with challenges and the only way to gain understanding and achieve greater management possibilities is to exchange experiences and knowledge. Environmental managers are aware of that and together with scientists are looking for more modern and better solutions, both with respect to natural resources and human interactions in many issues regarding nature protection. This publication presents reviews and research results on protected areas management, as well as 12 case studies derived from around the world with the aim of improving management effectiveness of the protected areas.
