Download or read book Some Neglected Soil Factors in Plant Growth written by Alfred Henry Meyer and published by . This book was released on 1927 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soils and Landscape Restoration written by John A. Stanturf and published by Academic Press. This book was released on 2020-10-24 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soils and Landscape Restoration provides a multidisciplinary synthesis on the sustainable management and restoration of soils in various landscapes. The book presents applicable knowledge of above- and below-ground interactions and biome specific realizations along with in-depth investigations of particular soil degradation pathways. It focuses on severely degraded soils (e.g., eroded, salinized, mined) as well as the restoration of wetlands, grasslands and forests. The book addresses the need to bring together current perspectives on land degradation and restoration in soil science and restoration ecology to better incorporate soil-based information when restoration plans are formulated. - Incudes a chapter on climate change and novel ecosystems, thus collating the perspective of soil scientists and ecologists on this consequential and controversial topic - Connects science to international policy and practice - Includes summaries at the end of each chapter to elucidate principles and key points
Download or read book Inanimate Life written by George M. Briggs and published by . This book was released on 2021-07-16 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Interactions in Soil Promoting Plant Growth written by John Dighton and published by Springer. This book was released on 2014-05-19 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book investigates soil ecology and biodiversity for its ability to maintain a balance of beneficial organisms to support plant growth. This subject is discussed by a group of international authors in natural, agricultural and urban systems. The importance of biodiversity per se and, specifically, the feedbacks between the plant and soil biota in mediating soil function are emphasized. Examples are selected from allelopathy and invasive plant species along with the, hitherto overlooked, role of viruses in soil. The book is intended to provide a framework for a holistic understanding of the essential role of soil organisms in promoting plant growth.
Download or read book Soil Conditions and Plant Growth written by Peter J. Gregory and published by John Wiley & Sons. This book was released on 2013-03-04 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: Building on the extremely successful and popular Russell’s Soil Conditions and Plant Growth, Wiley-Blackwell is pleased to publish this completely revised and updated edition of the soil science classic. Covering all aspects of the interactions between plant and soil, Peter Gregory and Stephen Nortcliff, along with their team of internationally-known and respected authors, provide essential reading for all students and professionals studying and working in agriculture and soil science. Subject areas covered range from crop science and genetics; soil fertility and organic matter; nitrogen and phosphoros cycles and their management; properties and management of plant nutrients; water and the soil physical environment and its management; plants and change processes in soils; management of the soil/plant system; and new challenges including food, energy and water security in a changing environment. Providing a very timely account on how better to understand and manage the many interactions that occur between soils and plants, Soil Conditions and Plant Growth is sure to become the book of choice - as a recommended text for students and as an invaluable reference for those working or entering into the industry. An essential purchase for all universities and research establishments where agricultural, soil, and environmental sciences are studied and taught.
Download or read book Reprint and Circular Series of the National Research Council written by National Research Council (U.S.) and published by . This book was released on 1925 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Invasion Biology written by Mark A. Davis and published by Oxford University Press. This book was released on 2009-01-29 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: With the exception of climate change, biological invasions have probably received more attention during the past ten years than any other ecological topic. Yet this is the first synthetic, single-authored overview of the field since Williamson's 1996 book. Written fifty years after the publication of Elton's pioneering monograph on the subject, Invasion Biology provides a comprehensive and up-to-date review of the science of biological invasions while also offering new insights and perspectives relating to the processes of introduction, establishment, and spread. The book connects science with application by describing the health, economic, and ecological impacts of invasive species as well as the variety of management strategies developed to mitigate harmful impacts. The author critically evaluates the approaches, findings, and controversies that have characterized invasion biology in recent years, and suggests a variety of future research directions. Carefully balanced to avoid distinct taxonomic, ecosystem, and geographic (both investigator and species) biases, the book addresses a wide range of invasive species (including protists, invertebrates, vertebrates, fungi, and plants) which have been studied in marine, freshwater, and terrestrial environments throughout the world by investigators equally diverse in their origins. This accessible and thought-provoking text will be of particular interest to graduate level students and established researchers in the fields of invasion biology, community ecology, conservation biology, and restoration ecology. It will also be of value and use to land managers, policy makers, and other professionals charged with controlling the negative impacts associated with recently arrived species.
Download or read book Journal of the American Society of Agronomy written by American Society of Agronomy and published by . This book was released on 1936 with total page 1128 pages. Available in PDF, EPUB and Kindle. Book excerpt: An international journal of agriculture and natural resource sciences.
Download or read book Reprint and circular series of the National Research Council written by and published by National Academies. This book was released on 1925 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experiment Station Record written by U.S. Office of Experiment Stations and published by . This book was released on 1932 with total page 1040 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Conditions and Plants Growth written by Sir John E. Russell and published by Daya Books. This book was released on 2002-03 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recognised As Complex Are The Relations Of The Plant To The Soil. Looking Through A Historical Perspective On The Evolution Of Systematic Scientific Studies On This Relation, This Book Endeavours To Compile The Available Information On The Soil As A Medium For Plant Life. With Reference To The Studies Made In Different Parts Of The World, It Covers All The Related Subjects And Topics In An Exhaustive Manner- The Microscopic Inhabitants Of The Soil And Their Connection With Plant Life; Relation Between Vegetation And Soil Temperature And Soil Moisture; Plant Nutrition Through Soil; Saline And Alkali; Soils And Their Management; Rock Weathering Soil Formation; Control Of Soil Erosion; And Conservation Of Soil Fertility; Etc. The Text Is Aptly Illustrated, Enriched With Tables Of Scientific Data, And Supplemented With References For Further Information And An Exhaustive Subject Index. Chapter 1: Historical And Introductory; The Search For The Principle Of Vegetation 1630-1750, The Serach For Plant Nutrients, The Phlogistic Period 1750-1800, The Modern Period 1800-1860, The Beginnings Of Soil Bacteriology, The Rise Of Modern Knowledge Of The Soil And The Return Of Field Studies, Chapter 2: The Food Of Plants, Chapter 3: The Individual Nutrients Needed By Plants; Nitrogen, Phosphorus, Sulphur, Potassium, Calcium, Magnesium, Sodium, Silicon, Chlorides, Trade Elements In Plant Nutrition, Iron, Manganese, Zinc, Copper, Molydenum, Boron, Trace Elements In Animal Nutrition, Chapter 4: Quantitative Studies On Plant Growth; The Relation Between Growth And Nutrient Supply As Found By Experiment, The Assumed Relation Between Growth And Nutrient Supply, The Interaction Of Nutrients, Chapter 5: The Composition Of The Soil; Size Distribution Of Soil Particles, The Mineralogical Composition Of The Soil Particles: Sand And Silt Fractions, The Clay Fraction, Non Crystalline Inorganic Components Of Soils, The Exchangeable Bases Held By The Soil, Chapter 6: The Constitution Of Clay Minerals, Chapter 7: The Cation And Anion Holding Powers Of Soils; The Cation Holding Power Of Clay Minerals, The Clay Acid, The Ph Of Soil, Summary Of The Factors Affecting The Ph Of A Soil, The Lime Requirement Of A Soil, Relative Attractions Of Clay For Different Cations, The Quantitative Laws Of Base Exchange, The Anion Holding Power Of Soils, Summary Of The Acid And Base Holding Mechanisms In Soils, The Effect Of Fertilizers On The Exchangeable Bases Held By Soils, Chapter 8: The Behaviour Of Soils And Clays In Water; The Absorption Of Liquids And Gases By Dry Clays, Deflocculation And Flocculation Of Clay Suspensions, Deflocculation And Flocculation In Clay Pastes And Clods, Soil Consistency, Chapter 9: The Physiology Of The Microbial Population; The Microbial Population Of The Soil, The Nutrition Of The Microflora, Autotrophic And Heterotrophic Organisms, The Respiration Of The Microflora, Aerobic And Anaerobic Organisms, The Byproducts Of Microbial Metabolism, Microbial Excretions, Chapter 10: The Organisms Composing The Population; Bacteria, The Number Of Bacteria In The Soil, The Types Of Soil Bacteria, The Fluctuations In The Number Of Soil Bacteria, Bacteriophages, Actinomycetes, Fungi, Algae, Protozoa, Amoeboid And Flagellate Stages Of Other Organisms, Chapter 11: The Soil Fauna Other Than Protozoa; Nematodes, Earthworms, Arthropods, Gasteropods, The Soil Inhabiting Mammals, Chapter 12: The General Ecology Of The Soil Population, The Distribution Of Micro Organisms Through The Soil Space, The Effect Of The Energy Supply, The Activity Of The Soil Population, The Relation Between Microbiological Activity And Soil Fertility, Symbiotic And Antibiotic Relations Between The Microflora, Interactions Between The Soil Microflora And Fauna, Soil Moisture And Soil Temperature, The Effect Of Soil Reaction, Partial Sterilisation Of The Soil, Chapter 13: The Association Between Plants And Micro Organisms; The Rhizosphere Population, Association Of Fungi With Plant Roots, Specialised Association Between Plant Roots And Soil Microorganisms, The Ectotrophic Mycorrhizas Of Forest Trees, Endotrophic Mycorrhizas, Chapter 14: The Decomposition Of Plant Material; The Plant Constituents, The Decomposition Of Plnat Residues, Composting, The Microorganisms Involved In The Decomposition Of Plant Remains, Green Manuring, The Decomposition Of Green Manures Under Water Logged Conditions: Paddy Soils, Chapter 15: The Composition Of The Soil Organic Matter; The Fractionation Of The Soil Humus, The Composition And Formation Of Humus, The Carbon Nitrogen Ration, The Phosphorus Compounds, The Sulphur Compounds In The Organic Matter, The Properties Of Soil Humus, The Acid Properties And The Base Exchange Capacity Of Humus, Clay Humus Complexes, The Level Of Organic Matter In Soils, Chapter 16: The Nitrogen Cycle In The Soil; The Mineralisation Of Soil Nitrogen, The Production Of Ammonia From Organic Matter, Nitrification In The Soil: The Production Of Nitric And Nitrate, The Level Of Mineral Nitrogen In The Soil, Losses Of Inorganic Nitrogen From The Soil, Grains Of Nitrogen By The Soil, Non Symbiotic Nitrogen Fixation In Soils, Symbiotic Nitrogen Fixation In Leguminous Plants, Chapter 17: The Temperature Of The Soil; The Heat Balance Of A Soil, The Influence Of Vegetation On Soil Temperature, The Variation Of Soil Temperature With Depth, Chapter 18: The Soil Atmosphere, Chapter 19: The Water In Soils; Where And How The Water Is Held, Suction And Pf Curves For Soils, The Movement Of Water In Soils, Entry Of Water Into A Soil: Infiltration Rate Or Premeability, Drainage Of Water, Field Capacity, Evaporation Of Water From A Bare Soil, Chapter 20: Water And Plant Growth; The Amout Of Water Transpired By A Crop, Chapter 21: The Transfer Of Water From Soil To Plant; The Wilting Range In Soils, The Available Water In Soils, The Amout Of Available Water Held By A Soil, Chapter 22: The Control Of Soil Moisture In Practice; Removal Of Excess Water By Drainage, Irriation, Dry Farming, Chapter 23: Soil Structure And Soil Tilth; The Breakdown Of Soil Structure, The Building Up Of Soil Structure In The Field, The Effects Of Cultivation Implements And The Weather, Modifying The Composition Of The Soil, The Effect Of Growing Crops On The Soil Structure, The Mechanism Of Crumb And Clod Formation, Chapter 24: The Development Of Plant Roots In Soil, Chapter 25: The Uptake Of Nutrients From The Soil; The Absorption Of Nutriens And Water By Plant Roots, The Soil Solution, The Sources From Which Plant Roots Extract Nutrients, Transfer Of Nutrients From The Root To The Soil, The Need For Fertiliser Placement, Chapter 26: The Sources Of Plant Nutrients In The Soil; The Phosphorus Compounds, The Phosphatic Fertilisers, The Reversion Of Phosphate Fertilisers In The Soil, The Level Of Available Phsosphate In The Soil, The Potassium Compounds, The Calcium Compounds, The Maganese Compounds, The Sulphur Compounds, The Nitrogen Compounds, The Organic Matter, Chapter 27: The Effect Of Soil Acidity And Alkalinity On Plant Growth; The Effect Of Soil Acidity, The Effect Of Soil Alkalinity, Chapter 28: The Effect Of Growing Plant On The Soil; The Efect Of A Crop On Its Successor, The Interaction Between Plants Growing Together, Chapter 29: The Weathering Of Rocks; The Formation Of The Crust Of Weathering, Laterites And Ferrallites, Weathering In The Soil Zone, Chapter 30: Soil Formation Of The Well Drained Sites; The Humus Of The Forest Floor, Well Drained Soils Under Mor, The Podsol, Well Drained Soils Under Mull, The Brown Earths, The Grassland Soils: The Prairie Soils And Chernozems, Leached Soils Of The Humid Tropics, Chapter 31: The Influence Of Topography On Soil Formation; Effect Of Impeded Drainage And Ground Water On The Soil, Pan Formation In Soils, Soil Formation On Hill Slopes, The Soil Catena, Chapter 32: Saline And Alkali Soils, Saline Soils Or Solonchaks, Alkali Soils: The Solonetz And Solod, Chapter 33: The Management Of Irrigated Saline And Alkali Soils; The Effect Of Soluble Salts On Plant Growth, The Control Of Soluble Salts In The Soil, The Control Of Alkalinity, Reclamation Of Soils Damaged By Sea Water, Chapter 34: The General Principles Of Soil Management; The Principles Underlying The Control Of Soil Erosion, Wind Erosion And Soil Drifting, Erosion Of Running Water, Chapter 35: Principles Of The Methods Of Soil Cultivation; Mulches And Shade Trees, Chapter 36: The Control Of Soil Fertility In Practice; The Management Of Sandy Soils In England, The Management Of The English Clay Soils, Some Principles Involved In The Management Of Tropical Soils, The Principles Of Land Classification.
Download or read book Experiment Station Record written by United States. Office of Experiment Stations and published by . This book was released on 1932 with total page 1154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Indian Journal of Agricultural Sciences written by and published by . This book was released on 1934 with total page 964 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Records of the Geological Survey of India written by Geological Survey of India and published by . This book was released on 1907 with total page 984 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1867- includes the "Annual report of the Geological survey of India".
Download or read book Annual Report of the Agricultural Experiment Station of the Louisiana State University and A E M College written by Louisiana Agricultural Experiment Station and published by . This book was released on 1910 with total page 994 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Doctorates Conferred in the Sciences by American Universities written by National Research Council (U.S.). Research Information Service and published by . This book was released on 1922 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Moisture Content and Physical Condition of Soils Classic Reprint written by Frank K. Cameron and published by Forgotten Books. This book was released on 2016-12-20 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Moisture Content and Physical Condition of Soils One particular water content has been given special consideration. It is perfectly well known to agriculturists generally and greenhouse men especially that there is a particular water content (or perhaps a more or less narrow range of water content) differing with each soil at which plants grow best, other conditions being the same. This is popularly known as the optimum water content, and is supposed to be that content from which plants draw most readily their needed supply; in other words, the Optimum water content is supposed to be determined by the physiological necessities of the plant rather than by the physical properties of the soil. There are difficulties, however, for which this view fails to offer sufficient and satisfactory explana tion. Plants can do quite well in soils containing considerably less than the optimum water content, other conditions being favorable. That is to say, there is no decided or sharp falling off in the plant growth corresponding with a lowering of the water content until the drought limit is approached, a limit generally much below the Optimum; and, on the other hand, there is no especial difficulty in carrying some of our common crops to a satisfactory maturity in water cultures. The investigation described in the following pages Shows conclusively not only that physical condition and the several properties on which it depends have an intimate relation with the water content of the soil, but that there is marked accentuation in these properties at a critical water content; and that this critical con tent is identical with the optimum water content. The moisture penetration curve shows a minimum force required for penetration at the optimum water content; the moisture-apparent Specific gravity curve shows a minimum point at the Optimum water content; the curves for evaporation show a marked difference in the rate of evapo ration above and below the optimum water content. It is apparent, therefore, that the true significance of optimum water content is that particular content at which the soil can be put into the best possible condition for plant growth. The plant can then best draw its needed water from the soil because all the other factors making for good growth are also at their best. Moreover, an increase in water content in excess of the optimum generally produces a greater detrimental effect on the plant than a decrease below the optimum. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
