Download or read book The Biochemical Decomposition of Nitrogenous Substances in Soils Classic Reprint written by W. P. Kelley and published by Forgotten Books. This book was released on 2017-11-19 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Biochemical Decomposition of Nitrogenous Substances in Soils From previous work in this laboratory 2 it has been shown that Hawaiian soils contain relatively greater amounts of amid and smaller amounts of basic (diamino acid) nitrogen than the vegetable proteins. From this it has been Sliggested that a study of the group Changes produced under the action of, bacteria might throw important light on both the availability of, and the nature of bacterial action on, nitrogenous fertilizers. Various factors, such as the degree of aeration, the acidity of the medium, the carbohydrates present, the synthesis of proteins in the body cells of the bacteria, the absorption of organic nitrogen compounds in varying degrees by plants, etc. SO complicate'the problem as to render very difficult an interpretation of 'the chemistry of bacterial action in soils. It has been Suggested, however, that by also studying the rates of decomposition under varying conditions some light might be thrown on this question. 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.
Download or read book The Biochemical Decomposition of Nitrogenous Substances in Soils by W P Kelley written by W. P. Kelley and published by . This book was released on 1915 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biochemical Decomposition of Nitrogenous Substances in Soils written by and published by . This book was released on 1915 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Biochemical Decomposition of Nitrogenous Substances in Soils written by Walter Pearson Kelley and published by . This book was released on 1915 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Decomposition of Organic Matter in Soils Classic Reprint written by Fred G. Merkle and published by Forgotten Books. This book was released on 2018-01-09 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Decomposition of Organic Matter in Soils To show that soils do actually take on carbon by absorption the results of Lsmmsrmsn) my be cited. As allowed a kilogram of soil to incubate for s period of eight weeks. The total carbon was determined at the beginning and end of this period and an increase of grams was observed in one instance and grams in another. 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.
Download or read book The Organic Matter of the Soil written by Clarence Austin Morrow and published by Forgotten Books. This book was released on 2018-02-18 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Organic Matter of the Soil: A Study of the Nitrogen Distribution in Different Soil Types At present seven different organic substances are known to exist in the soil. They are crenic acid, apocrenic acid, geic acid, humic acid, and humin, ulmic acid and ulmin. 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.
Download or read book Quantitative Relationships of Carbon Phosphorus and Nitrogen in Soils Classic Reprint written by Robert Stewart and published by Forgotten Books. This book was released on 2016-08-23 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Quantitative Relationships of Carbon, Phosphorus, and Nitrogen in Soils Carbon may exist in soils as inorganic and as organic carbon. The agricultural value of organic carbon, or organic matter, of soils has long been recognized by the practical husbandman, and the scientific man early recognized its value when the applications of science were made to agricultural problems. Mulder (i), in 1844, made an elaborate study of the organic matter of the soil, and seems to have been the first one to suggest that it consisted of other elements than carbon, hydrogen and oxygen. He separated the organic matter into various supposedly pure organic compounds of an acid nature, which were analyzed and studied by the usual organic method. 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.
Download or read book Decomposition of Organic Matter and Assimilation of Inorganic Nitrogen in Soils written by 胡承洛 and published by . This book was released on 1961 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Fertilizer Encyclopedia written by Vasant Gowariker and published by John Wiley & Sons. This book was released on 2009-04-08 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fertilizers are key for meeting the world s demands for food, fiber, and fuel. Featuring nearly 4,500 terms of interest to all scientists and researchers dealing with fertilizers, The Fertilizer Encyclopedia compiles a wealth of information on the chemical composition of fertilizers, and includes information on everything from manufacturing and applications to economical and environmental considerations. It covers behavior in soil, chemical and physical characteristics, physiological role in plant growth and soil fertility, and more. This is the definitive, up-to-date reference on fertilizers. This book is not available for purchase from Wiley in the country of India. Customers in India should visit Vasudha Research & Publications Pvt. Ltd. at www.fertilizer-encyclopedia.com
Download or read book Composting in the Classroom written by Nancy M. Trautmann and published by Kendall/Hunt Publishing Company. This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Promote inquiry-based learning and environmental responsibility at the same time. Composting in the Classroom is your comprehensive guide offering descriptions of a range of composting mechanisms, from tabletop soda bottles to outdoor bins. Activities vary in complexity -- you can use this as a whole unit, or pick and choose individual activities.
Download or read book The Nature and Properties of Soils written by Nyle C Brady and published by . This book was released on 2013-07-29 with total page 1046 pages. Available in PDF, EPUB and Kindle. Book excerpt: For Introduction to Soils or Fundamentals of Soil Science courses. Also for courses in Soil Fertility, Forest Soils, Soil Management, Land Resources, Earth Science, and Soil Geography. Developed for Introduction to Soils or Soil Science courses, The Nature and Properties of Soils, 14e can be used in courses such as Soil Fertility, Land Resources, Earth Science and Soil Geography. Now in its 14th edition, this text is designed to help make students study of soils a fascinating and intellectually satisfying experience. Written for both majors and non-majors, this text highlights the many interactions between the soil and other components of forest, range, agricultural, wetland and constructed ecosystems.
Download or read book Carbon Nitrogen and Phosphorus Cycling in Forest Soils written by Robert G. Qualls and published by MDPI. This book was released on 2019-06-21 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: The majority of carbon stored in the soils of the world is stored in forests. The refractory nature of some portions of forest soil organic matter also provides the slow, gradual release of organic nitrogen and phosphorus to sustain long term forest productivity. Contemporary and future disturbances, such as climatic warming, deforestation, short rotation sylviculture, the invasion of exotic species, and fire, all place strains on the integrity of this homeostatic system of C, N, and P cycling. On the other hand, the CO2 fertilization effect may partially offset losses of soil organic matter, but many have questioned the ability of N and P stocks to sustain the CO2 fertilization effect. Despite many advances in the understanding of C, N, and P cycling in forest soils, many questions remain. For example, no complete inventory of the myriad structural formulae of soil organic N and P has ever been made. The factors that cause the resistance of soil organic matter to mineralization are still hotly debated. Is it possible to “engineer” forest soil organic matter so that it sequesters even more C? The role of microbial species diversity in forest C, N, and P cycling is poorly understood. The difficulty in measuring the contribution of roots to soil organic C, N, and P makes its contribution uncertain. Finally, global differences in climate, soils, and species make the extrapolation of any one important study difficult to extrapolate to forest soils worldwide.
Download or read book Medical Biochemistry written by N. V. Bhagavan and published by Academic Press. This book was released on 2002 with total page 1068 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text presents the fundamentals of biochemistry and related topics for all those pursuing medical or other health-related fields such as clinical chemistry, medical technology, or pharmacology.
Download or read book Litter Decomposition a Guide to Carbon and Nutrient Turnover written by and published by Academic Press. This book was released on 2005-11-22 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Litter Decomposition describes one of the most important processes in the biosphere - the decay of organic matter. It focuses on the decomposition process of foliar litter in the terrestrial systems of boreal and temperate forests due to the greater amount of data from those biomes. The availability of several long-term studies from these forest types allows a more in-depth approach to the later stages of decomposition and humus formation. Differences between the decay of woody matter and foliar litter is discussed in detail and a different pattern for decomposition is introduced. While teachers and students in more general subjects will find the most basic information on decomposition processes in this book, scientists and graduate students working on decomposition processes will be entirely satisfied with the more detailed information and the overview of the latest publications on the topic as well as the methodological chapter where practical information on methods useful in decomposition studies can be found. Abundant data sets will serve as an excellent aid in teaching process and will be also of interest to researchers specializing in this field as no thorough database exists at the moment. Provides over 60 tables and 90 figures Offers a conceptual 3-step model describing the different steps of the decomposition process, demonstrating changes in the organic-chemical structure and nutrient contents Includes a synthesis of the current state of knowledge on foliar litter decomposition in natural systems Integrates more traditional knowledge on organic matter decomposition with current problems of environmental pollution, global change, etc. Details contemporary knowledge on organic matter decomposition
Download or read book Bioavailability of Contaminants in Soils and Sediments written by National Research Council and published by National Academies Press. This book was released on 2003-05-03 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioavailability refers to the extent to which humans and ecological receptors are exposed to contaminants in soil or sediment. The concept of bioavailability has recently piqued the interest of the hazardous waste industry as an important consideration in deciding how much waste to clean up. The rationale is that if contaminants in soil and sediment are not bioavailable, then more contaminant mass can be left in place without creating additional risk. A new NRC report notes that the potential for the consideration of bioavailability to influence decision-making is greatest where certain chemical, environmental, and regulatory factors align. The current use of bioavailability in risk assessment and hazardous waste cleanup regulations is demystified, and acceptable tools and models for bioavailability assessment are discussed and ranked according to seven criteria. Finally, the intimate link between bioavailability and bioremediation is explored. The report concludes with suggestions for moving bioavailability forward in the regulatory arena for both soil and sediment cleanup.
Download or read book Natural Products and Drug Discovery written by Subhash C. Mandal and published by Elsevier. This book was released on 2018-02-16 with total page 778 pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural Products and Drug Discovery: An Integrated Approach provides an applied overview of the field, from traditional medicinal targets, to cutting-edge molecular techniques. Natural products have always been of key importance to drug discovery, but as modern techniques and technologies have allowed researchers to identify, isolate, extract and synthesize their active compounds in new ways, they are once again coming to the forefront of drug discovery. Combining the potential of traditional medicine with the refinement of modern chemical technology, the use of natural products as the basis for drugs can help in the development of more environmentally sound, economical, and effective drug discovery processes. Natural Products & Drug Discovery: An Integrated Approach reflects on the current changes in this field, giving context to the current shift and using supportive case studies to highlight the challenges and successes faced by researchers in integrating traditional medicinal sources with modern chemical technologies. It therefore acts as a useful reference to medicinal chemists, phytochemists, biochemists, pharma R&D professionals, and drug discovery students and researchers. - Reviews the changing role of natural products in drug discovery, integrating traditional knowledge with modern molecular technologies - Highlights the potential future role of natural products in preventative medicine - Supported by real world case studies throughout
Download or read book Handbook of Plant Nutrition written by Allen V. Barker and published by CRC Press. This book was released on 2016-04-19 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt: The burgeoning demand on the world food supply, coupled with concern over the use of chemical fertilizers, has led to an accelerated interest in the practice of precision agriculture. This practice involves the careful control and monitoring of plant nutrition to maximize the rate of growth and yield of crops, as well as their nutritional value.
