Download or read book Soil and Environmental Science Dictionary written by E.G. Gregorich and published by CRC Press. This book was released on 2001-06-22 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: The lingo of soil science is a language unto itself. Soil and Environmental Science Dictionary is a glossary of terms used in soil and environmental science, including terms from related disciplines. Designed for teachers, students, researchers and others interested or involved in environmental sciences related to soils, this compilation includes a

Download or read book Bulletin written by Québec (Province). Department of Agriculture and published by . This book was released on 1917 with total page 982 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fili re p pini re de la production la plantation written by FOUCARD Jean-Claude and published by Lavoisier. This book was released on 2008-08-20 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: Synthèse consacrée aux végétaux ligneux d'ornement, fruitiers et forestiers, cet ouvrage sur la Filière pépinière, présente la filière professionnelle, son organisation, son poids économique en France et sur le plan international. Le volet technique, intégrant les plus récents acquis dans le domaine, s'étend de la production en pépinière jusqu'à la plantation : sélection variétale, techniques culturales, matériels spécifiques. La qualité du produit et la protection de l'environnement sont largement abordées avec une description complète de l'éventail réglementaire. Ces thèmes majeurs sont illustrés d'exemples concrets issus de la recherche ou des entreprises. Innovant et très complet, ce volume est devenu rapidement une référence pour les professionnels, enseignants et étudiants de la filière de la pépinière et du paysage.

Download or read book Biological Nitrogen Fixation and Sustainability of Tropical Agriculture written by African Association for Biological Nitrogen Fixation. Conference and published by IITA. This book was released on 1992-10-27 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biological nitrogen fixation in tropical agrosystems: twenty years of biological nitrogen fixation research in Africa; Sustainable agriculture: definition and measurement; Biological nitrogen fixation systems in tropical ecosystems: an overview; A protocol for screening legumes as soil-improving crops; The sustenance of tropical agriculture with multipurpose azolla; Facteurs pedoclimatiques limitant la lixation biologique l'azole; Response of some tropical nitrogen-fixing woody legumes to drought and inoculation with mycorrhiza; Improvement to the Phaseolus/Rhizobium symbiosis, with particular reference to the Caribbean region; Effect of pest management systems on biological nitrogen fixation; Agronomic evaluation of a rock phosphate as a phosphorus source for Leucaena leucocephala grown on an utisol; Nodulation of soybean grown under field conditions and inoculated with Bradyrhizobium japonicum strains; Effect of fertilization and Rhizobium inoculation on the growth of Leucaena and Gliricidia on an alfisol in south-western Nigeria; Early growth and nodulation in Leucaena and Gliricidia and the effects or pruning on biomass productivity; Comparative stude on the growth and productivity of Sesbania and Leucaena in the Central Plateau region, Rwanda; Supernoculation and non-nodulation mutants of soybean; Genetically improved rhizobia and their use in agriculture; Sustainability of nitrogen-fixing cropping systems: Nodulation and nitrogen fixation and transfer in a cowpea/rice cropping system; The role of legumes in sustaiing soil productivity and controlling soil erosion; Fitting soil-improving legumes into inland valley rice-baes cropping systems in West Africa; Herbage yield and soil fertility restoration potential of some tropical forage legumes.

Download or read book Revue Agronomique Canadien written by and published by . This book was released on 1925 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cycling of Mineral Nutrients in Agricultural Ecosystems written by M Frissel and published by Elsevier. This book was released on 2012-12-02 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cycling of Mineral Nutrients in Agricultural Ecosystems contains the papers presented in the first international environmental symposium of the Royal Netherlands Land Development Society held at Amsterdam on 1976. The symposium is cosponsored by the International Association for Ecology and Elsevier Scientific Publishing Company. This compilation reflects the exchange of information and ideas by specialists and participants of the symposium. The book is comprised of nine chapters, which cover the following concepts of nutrient cycling in agricultural ecosystems: principles and control of nutrient cycling; description and classification of agro-ecosystems; nutrient cycling data from different countries; and general discussion on nutrient balances, changes in soil pools, manipulations, and future researches. This book also offers potential background and perspectives for further studies on nutrient cycling in agro-ecosystems, presenting a view on what directions future research should take. This volume will be an invaluable reference source for environmental science students and professionals. Research workers in agriculture and other environmental disciplines will also find this book useful.

Download or read book Catalogue of Printed Books written by British Museum. Department of Printed Books and published by . This book was released on 1903 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bulletin written by National Agricultural Library (U.S.) and published by . This book was released on 1907 with total page 954 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Catalogue of Printed Books written by and published by . This book was released on 1903 with total page 860 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 Sylviculture written by Albert Fron and published by . This book was released on 1903 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nitrates agriculture eau written by R. Calvet and published by Editions Quae. This book was released on 1990 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: The contributions of this symposium on the relation agriculture-nitrogen-water deal with the economical aspects (cost evaluation and cost repartition), the quantitative approach of the nitrogen biochemical cycle, farming systems and nitrogen manegement, and land utilization, nitrogen management and water quality

Download or read book Bulletin written by United States. Department of Agriculture. Library and published by . This book was released on 1902 with total page 916 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Air Pollution and Ecosystems written by P. Mathy and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 994 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the concluding session of the symposium "Acid Deposition, a Challenge for Europe" held in Karlsruhe in September 1983, Dr. GINJAAR, the former Minister of Health and Environmental Protection of the Netherlands, emphasised the need for setting up a concerted research programme including the effects of air pollution on terrestrial and aquatic ecosystems. The Council of Ministers of the European Community in 1984 adopted a revision of the 3rd Community Programme on Environment comprising contract research and concerted action in the field of the effects of air pollution in eco systems. These research areas were also introduced in the 4th R-D Community Programme on Environment, adopted by the Council of Ministers in 1986 and are subject again to contract research and concerted action. The Commission of the European Community is very concerned to increase the effectiveness of researcn projects carried out within the national programmes, and those undertaken at the Community level. The Commission tends to develop an integrated scientific approach, including not only the physico-chemical behaviour, the transport and the deposition of airborne pollutants but also the effects of these pollutants, in particular on living organisms and ecosystems. With regard to the specific issue of the effects, the Commission is trying to develop and strengthen a multi-disciplinary approach associating biologists, pathologists, eco physiologists, and specialists of soil sciences, within the concerted action, as well as within coordinated research projects.

Download or read book Library Bulletin written by United States. Department of Agriculture. Library and published by . This book was released on 1902 with total page 1104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliographical Contributions written by United States. Department of Agriculture. Library and published by . This book was released on 1905 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Alleviating Soil Fertility Constraints to Increased Crop Production in West Africa written by A. Uzo Mokwunye and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tropical Africa escaped from the glaciers that covered the temperate parts of the world during the Ice Age. The legacy is that most of the parent materials of the soils of tropical Africa are old, highly weathered and devoid of bases and phosphate-bearing minerals. Traditional farming systems which were relatively stable and sustainable relied on long fallow periods after one to two years of cropping to maintain the productive capacity of the soils. In recent times and especially in densely populated areas, a sizeable class of 'landless' farmers have begun to cultivate marginal lands or to invade the 'forest reserves' thereby exacerbating the problems of land and environ mental degradation. of soil fertility that will facilitate the production of adequate quantities of the principle Maintaining a level staples has become a major challenge to agricultural scientists in tropical Africa. To increase the nutrient supplying power of soils requires the inputs of fertilizers. These can be organic or inorganic. The efficiency with which these externally supplied inputs can increase agricultural production and reduce soil and environmental deterioration is dependent on the ability of scientists to determine the right types and quantities of the products to apply to each soil, crop and cropping system as well as the ability of farmers to acquire requisite farm manage ment skills.