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Fertilisation Azotee En Vergers De Pechers Et De Pommiers
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Book Synopsis Fertilisation azotée en vergers de pêchers et de pommiers by : Jean-Loup Péroys
Download or read book Fertilisation azotée en vergers de pêchers et de pommiers written by Jean-Loup Péroys and published by . This book was released on 2007 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: @Dans le cadre de la promotion de l’arboriculture fruitière raisonnée, et compte tenu des aspects défavorables (qualité des fruits affectée, risques sanitaires, etc.) liés à des excès azotés en vergers, l’arboriculture requiert aujourd’hui un raisonnement plus formalisé de la fertilisation azotée. Peu d’outils, directement accessibles à l’arboriculteur, permettent de l’aider à raisonner sa dose. Un prototype d’outil d’aide à la décision a été construit afin de calculer la dose totale d’azote à apporter en vergers de pommiers et de pêchers. La construction de cette calculette repose sur la méthode du bilan, estimant les flux azotés existants en verger via différents formalismes. Le paramétrage prend en compte la typologie culturale et pédo-climatique des différentes zones de production, ainsi que les estimations des besoins des arbres d’après la littérature. Une analyse de sensibilité fait ressortir d’une part l’importance des variables relatives au sol, aux eaux d’irrigation et à l’objectif de rendement, et d’autre part le faible poids des variables relatives aux risques de volatilisation. Cette perte d’azote, calculée sur l’exemple de Balandran, apparaît en effet quasi-inexistante. Les besoins des arbres représentent logiquement la plus grande part des différents flux azotés, suivis des fournitures du sol, révélant la nécessité d’un paramétrage précis de ces termes du bilan. Les mesures effectuées au Ctifl depuis 2003 montrent des besoins des besoins azotés relativement équivalents à ceux qui paramétrés d’après la littérature, avec néanmoins des disparités selon les organes. L’âge des arbres en production semble peu corrélé aux résidus de culture, contrairement au rendement, notamment chez les pêchers, mais d’autres mesures sont à prévoir pour un paramétrage plus juste des besoins. Ce travail fait le point sur les difficultés rencontrées dans la construction et le paramétrage de l’outil, et demande à terme une étape de validation.
Book Synopsis La fumure du pommier en vergers intensifs by : Vernou-en-Sologne. Station de recherches fruitières
Download or read book La fumure du pommier en vergers intensifs written by Vernou-en-Sologne. Station de recherches fruitières and published by . This book was released on 1956 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the XVIth International Horticultural Congress, Brussels, Belguim, August 31-September 8: Fruit growing. Culture fruitiére. Obstbau by :
Download or read book Proceedings of the XVIth International Horticultural Congress, Brussels, Belguim, August 31-September 8: Fruit growing. Culture fruitiére. Obstbau written by and published by . This book was released on 1963 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agrindex written by and published by . This book was released on 1989 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Horticultural Research International by : International Society for Horticultural Science
Download or read book Horticultural Research International written by International Society for Horticultural Science and published by . This book was released on 1972 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the XVIth International Horticultural Congress, Brussels, Belguim, August 31-September 8: Preliminaries. General lectures. Vegetable growing by :
Download or read book Proceedings of the XVIth International Horticultural Congress, Brussels, Belguim, August 31-September 8: Preliminaries. General lectures. Vegetable growing written by and published by . This book was released on 1963 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Etymological Dictionary of the Romance Languages by : Friedrich Diez
Download or read book An Etymological Dictionary of the Romance Languages written by Friedrich Diez and published by . This book was released on 1864 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agronomie written by and published by . This book was released on 1996 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Agroecological Practices For Sustainable Agriculture: Principles, Applications, And Making The Transition by : Alexander Wezel
Download or read book Agroecological Practices For Sustainable Agriculture: Principles, Applications, And Making The Transition written by Alexander Wezel and published by World Scientific. This book was released on 2017-06-19 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: Good agroecological practices are indispensable for the development of sustainable agriculture. In this book, principles, diversity and applications of agroecological practices for a range of systems are presented, transforming scientific research and participatory knowledge of production into practical application. It illustrates a broad range of research and teaching being used within the farming community to demonstrate best practice and current state-of-play within the field. Agroecological methods used in crop farming, grass-based livestock farming, fish production, and other complex farming systems are discussed. Conclusions are drawn from studies to provide an outlook on future trends of agroecological practices and on policies supporting implementation.Due to emphasis on real-life application, it is relevant not only to students of the agricultural sciences and public policy, but also to researchers, stakeholders and policy makers involved in the development of sustainable agriculture.
Download or read book Soil Conservation Districts written by and published by . This book was released on 1963 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Annuaire de la Recherche by : Canada. Agriculture and Agri-Food Canada. Research Branch
Download or read book Annuaire de la Recherche written by Canada. Agriculture and Agri-Food Canada. Research Branch and published by . This book was released on 1994 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Agroecological Crop Protection by : Jean-Philippe Deguine
Download or read book Agroecological Crop Protection written by Jean-Philippe Deguine and published by Springer. This book was released on 2017-12-22 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is devoted to Agroecological Crop Protection, which is the declension of the principles of agroecology to crop protection. It presents the concepts of this innovative approach, case studies and lessons and generic keys for agroecological transition. The book is intended for a wide audience, including scientists, experimenters, teachers, farmers, students. It represents a new tool, proposing concrete keys of action on the basis of feedbacks validated scientifically. Beyond the examples presented, it is therefore of general scope and proposes recommendations for all temperate and tropical cropping systems. It contributes to the training and teaching modules in this field and it is an updated information support for professionals and a teaching aid for students (agronomy, crop protection, biodiversity management, agroecology).
Author :Food and Agriculture Organization of the United Nations Publisher :Food & Agriculture Organization of the UN (FAO) ISBN 13 : Total Pages :116 pages Book Rating :4.:/5 (31 download)
Book Synopsis Growing Greener Cities in Africa by : Food and Agriculture Organization of the United Nations
Download or read book Growing Greener Cities in Africa written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Organization of the UN (FAO). This book was released on 2012 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Second Global Plan of Action addresses new challenges, such as climate change and food insecurity, as well as novel opportunities, including information, communication and molecular methodologies. It contains 18 priority activities organized in four main groups: In situ conservation and management; Ex situ conservation; Sustainable use; and Building sustainable institutional and human capacities.
Download or read book Annuaire de la Recherche written by and published by . This book was released on 1994 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Soil and Water Conservation by : Boy Scouts of America
Download or read book Soil and Water Conservation written by Boy Scouts of America and published by . This book was released on 1995 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: Outlines requirements for pursuing a merit badge in soil and water conservation.
Book Synopsis Biodiversity in Agroecosystems by : Wanda W. Collins
Download or read book Biodiversity in Agroecosystems written by Wanda W. Collins and published by CRC Press. This book was released on 1998-08-14 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: between the diversity of plant and animal species and host/dependent agricultural systems. Biodiversity in Agroecosystems shows how biodiversity can be thought of not only as the rich make-up of a great number of related and competing species within an ecologically defined community, but also as the robust behavior and resilience of those species over time and as the endurance of their eco-community. This book brings to the fore new research on biodiversity in agricultural ecosystems at both micro and macro levels, heretofore available only in journals and proceedings papers.
Download or read book Publication written by and published by . This book was released on 1982 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
