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Author : Commonwealth Bureau of Soils
Publisher : Unknown
Page : 502 pages
File Size : 48,7 Mb
Release : 1975
Category : Fertilizers
ISBN : CORNELL:31924000781207
Author : Commonwealth Bureau of Soils
Publisher : Unknown
Page : 506 pages
File Size : 45,7 Mb
Release : 1975
Category : Fertilizers
ISBN : WISC:89031273113
Author : National Agricultural Library (U.S.)
Publisher : Unknown
Page : 1338 pages
File Size : 55,8 Mb
Release : 1974
Category : Electronic
ISBN : STANFORD:36105130624112
Author : National Agricultural Library (U.S.)
Publisher : Unknown
Page : 1392 pages
File Size : 41,9 Mb
Release : 1976
Category : Agriculture
ISBN : UOM:39015070533099
Author : Randall G. Mutters,Christopher A. Greer,William R. Horwath
Publisher : UCANR Publications
Page : 148 pages
File Size : 47,5 Mb
Release : 2010-01-01
Category : Technology & Engineering
ISBN : 9781601076434
Author : Edwards
Publisher : CRC Press
Page : 715 pages
File Size : 55,7 Mb
Release : 2020-11-25
Category : Nature
ISBN : 9781000123579
A unique look at how the adoption of sustainable farming methods is being pursued throughout the world. This comprehensive book provides clear insight into research and education needs and the many points of view that come to bear on the issue of sustainability. Essential for agricultural leaders in research, education, conservation, policy making, and anyone else interested in creating an economically and environmentally sustainable agriculture worldwide.
Author : United States. Bureau of Soils
Publisher : Unknown
Page : 32 pages
File Size : 41,8 Mb
Release : 1909
Category : Soils
ISBN : LCCN:agr09000737
Author : Surajit K. De Datta
Publisher : Int. Rice Res. Inst.
Page : 642 pages
File Size : 50,7 Mb
Release : 1981
Category : Rice
ISBN : 9780471097600
Author : David C. Coleman,D. A. Crossley Jr.
Publisher : Elsevier
Page : 404 pages
File Size : 51,6 Mb
Release : 2004-08-11
Category : Science
ISBN : 9780080472812
This fully revised and expanded edition of Fundamentals of Soil Ecology continues its holistic approach to soil biology and ecosystem function. Students and ecosystem researchers will gain a greater understanding of the central roles that soils play in ecosystem development and function. The authors emphasize the increasing importance of soils as the organizing center for all terrestrial ecosystems and provide an overview of theory and practice of soil ecology, both from an ecosystem and evolutionary biology point of view. This volume contains updated and greatly expanded coverage of all belowground biota (roots, microbes and fauna) and methods to identify and determine its distribution and abundance. New chapters are provided on soil biodiversity and its relationship to ecosystem processes, suggested laboratory and field methods to measure biota and their activities in ecosystems.. Contains over 60% new material and 150 more pages Includes new chapters on soil biodiversity and its relationship to ecosystem function Outlines suggested laboratory and field methods Incorporates new pedagogical features Combines theoretical and practical approaches
Author : Anonim
Publisher : Unknown
Page : 1376 pages
File Size : 40,9 Mb
Release : 1991
Category : Abbreviations
ISBN : UCLA:L0058043431
Author : Jim P. Curry
Publisher : Springer Science & Business Media
Page : 470 pages
File Size : 42,9 Mb
Release : 1993-11-30
Category : Science
ISBN : 0412165201
Grasslands comprise more than a quarter of the Earth's land surface. In addition to supporting a wide range of vertebrates such as domestic livestock and a variety of games species, grassland is the natural habitat for a wide range of invertebrate species, and this book considers those which occur in grassland and their impact on soil fertility and herbage growth. It describes grassland as a habitat for invertebrates, the groups which occur there and their abudance. An extensive literature on grassland invertebrates scattered through numerous scientific journals and reports is drawn on in an attempt to develop an overview. In the opening chapter the major grassland types are considered and the features which influence the distribution and abudance of the invertebrates which inhabit them are discussed. Next the major taxonomic groups are reviewed in turn, with a brief account of their biology and ecology and of their ecosystem role. Some general features of grassland invertebrate communities are then described and teh factors which influence th epopulation densities of their constituent species are considered. Particular attentionm is given to the ways in which populations are influenced by management practices. The final and largest chapterdeals with the various ways in which invertebrates influence important grassland processes through ingestion of organic matter, interaction with injurious species is considered, with particular emphasis on the potential for achieving this through manipulating grassland management practices.
Author : B.R. Stinner,G.G. Lorenzoni,Maurizio G. Paoletti
Publisher : Elsevier
Page : 645 pages
File Size : 50,9 Mb
Release : 2012-12-02
Category : Technology & Engineering
ISBN : 9780444597953
The increased use of chemical fertilizers and pesticides in crop production has adversely affected both the environment and the agricultural economy. Not only has it led to environmental pollution, but also the increasing costs of chemical inputs and the low prices received for agricultural products have contributed to economic unprofitability and instability.The International Symposium on Agricultural Ecology and Environment was organised in order to discuss ways of achieving the goals of economically and environmentally sustainable agriculture. It is apparent that a truly multidisciplinary effort is required and for this reason the meeting was attended by authors from many different disciplines and geographical locations. Although their papers reflect a wide diversity of agroecosystem types and examples, several common themes emerge: the increased importance of biotic control of ecosystem processes in lower input systems; the key role of soil organic matter in stabilizing nutrient cycling; the importance of agricultural landscape diversity and complexity; the importance of studying ecological processes in natural and agricultural ecosystems; the critical need to integrate socio-economic and ecological approaches.
Author : Leland G. Alkire
Publisher : Unknown
Page : 848 pages
File Size : 46,9 Mb
Release : 1988
Category : Periodicals
ISBN : UCLA:L0064317092
Author : Allen Hunt,Markus Egli,Boris Faybishenko
Publisher : John Wiley & Sons
Page : 288 pages
File Size : 48,9 Mb
Release : 2021-04-06
Category : Technology & Engineering
ISBN : 9781119563969
Explores soil as a nexus for water, chemicals, and biologically coupled nutrient cycling Soil is a narrow but critically important zone on Earth's surface. It is the interface for water and carbon recycling from above and part of the cycling of sediment and rock from below. Hydrogeology, Chemical Weathering, and Soil Formation places chemical weathering and soil formation in its geological, climatological, biological and hydrological perspective. Volume highlights include: The evolution of soils over 3.25 billion years Basic processes contributing to soil formation How chemical weathering and soil formation relate to water and energy fluxes The role of pedogenesis in geomorphology Relationships between climate soils and biota Soils, aeolian deposits, and crusts as geologic dating tools Impacts of land-use change on soils The American Geophysical Union promotes discovery in Earth and space science for the benefit of humanity. Its publications disseminate scientific knowledge and provide resources for researchers, students, and professionals. Find out more about this book from this Q&A with the Editors
Author : Anonim
Publisher : Gale Cengage
Page : 1302 pages
File Size : 46,7 Mb
Release : 2000-10
Category : Reference
ISBN : UOM:39015056080438
Each volume separately titled: v. 1, Acronyms, initialisms & abbreviations dictionary; v. 2, New acronyms, initialisms & abbreviations (formerly issued independently as New acronyms and initialisms); v. 3, Reverse acronyms, initialisms & abbreviations dictionary (formerly issued independently as Reverse acronyms and initialisms dictionary).