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Author : Christopher Eugene Welsh
Publisher :
ISBN 13 :
Total Pages : 158 pages
Book Rating : 4.:/5 (367 download)
Download or read book Effects of Soil Fumigation and Nitrogen Fertilization on Nitrification written by Christopher Eugene Welsh and published by . This book was released on 1996 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : T. Komang Ralebitso-Senior
Publisher : Elsevier
ISBN 13 : 012803436X
Total Pages : 342 pages
Book Rating : 4.1/5 (28 download)
Download or read book Biochar Application written by T. Komang Ralebitso-Senior and published by Elsevier. This book was released on 2016-05-07 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biochar Application: Essential Soil Microbial Ecology outlines the cutting-edge research on the interactions of complex microbial populations and their functional, structural, and compositional dynamics, as well as the microbial ecology of biochar application to soil, the use of different phyto-chemical analyses, possibilities for future research, and recommendations for climate change policy. Biochar, or charcoal produced from plant matter and applied to soil, has become increasingly recognized as having the potential to address multiple contemporary concerns, such as agricultural productivity and contaminated ecosystem amelioration, primarily by removing carbon dioxide from the atmosphere and improving soil functions. Biochar Application is the first reference to offer a complete assessment of the various impacts of biochar on soil and ecosystems, and includes chapters analyzing all aspects of biochar technology and application to soil, from ecogenomic analyses and application ratios to nutrient cycling and next generation sequencing. Written by a team of international authors with interdisciplinary knowledge of biochar, this reference will provide a platform where collaborating teams can find a common resource to establish outcomes and identify future research needs throughout the world. - Includes multiple tables and figures per chapter to aid in analysis and understanding - Includes a comprehensive table of the methods used within the contents, ecosystems, contaminants, future research, and application opportunities explored in the book - Includes knowledge gaps and directions of future research to stimulate further discussion in the field and in climate change policy - Outlines the latest research on the interactions of complex microbial populations and their functional, structural, and compositional dynamics - Offers an assessment of the impacts of biochar on soil and ecosystems
Author : David S. Jenkinson
Publisher : Pergamon
ISBN 13 :
Total Pages : 472 pages
Book Rating : 4.3/5 (91 download)
Download or read book Nitrogen Efficiency in Agricultural Soils written by David S. Jenkinson and published by Pergamon. This book was released on 1988 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Seminar on nitrogen efficiency in agricultural soils and the efficiency use of fertilizer nitrogen, held in Edinburgh, 16-18 September 1987, as part of the EC Programme for the Coordination of Agricultural Research.
Author : James Irvin Kirkwood
Publisher :
ISBN 13 :
Total Pages : 302 pages
Book Rating : 4.3/5 (129 download)
Download or read book Effects of Fumigant Chemicals on Microbial Activity and Nitrogen Transformation and on Crop Response in Organic Soil written by James Irvin Kirkwood and published by . This book was released on 1962 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Rup Lal
Publisher :
ISBN 13 :
Total Pages : 178 pages
Book Rating : 4.3/5 (91 download)
Download or read book Pesticides and Nitrogen Cycle written by Rup Lal and published by . This book was released on 1988 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kurt Arnold Spokas
Publisher :
ISBN 13 :
Total Pages : 390 pages
Book Rating : 4.:/5 (319 download)
Download or read book Impacts of Soil Fumigation on Greenhouse Gas Emission written by Kurt Arnold Spokas and published by . This book was released on 2005 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Louise Sennett
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (134 download)
Download or read book The Effect of Chemical Fumigation and Biofumigation on the Soil Nitrogen Cycle, Soil Respiration, and the Soil Microbial Community written by Louise Sennett and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical fumigation and biofumigation are used to reduce soil-borne diseases in potato crop production systems. However, soil fumigation may impact non-targeted soil microorganisms, consequently altering essential soil processes. In a first microcosm experiment, chemical fumigation with chloropicrin (CP) or metam sodium (MS) either used alone or combined with an organic amendment (OA) and biofumigation with mustard plant residues were assessed for their effects on key soil nitrogen (N) processes, the abundance of N-related microorganisms, and soil bacterial diversity. Biofumigation did not affect net N mineralization, nitrification, or nitrifier and denitrifier abundance, but increased denitrification. Chemical fumigation used alone did not affect net N mineralization. All chemical fumigant treatments inhibited nitrification and decreased nitrifier abundance compared to biofumigation. Only CP fumigation decreased denitrifier abundance. Biofumigation transiently decreased bacterial evenness at early time points. Conversely, CP fumigation had an enduring impact on bacterial diversity, decreasing species evenness and yielding the most dissimilar community. Unexpectedly, MS fumigation combined with an OA delayed the flux of soil respiration compared to amended non-fumigated soil, indicating chemical fumigation may impact plant residue decomposition. This was further investigated in a second microcosm experiment, in which chemical fumigation (with CP or MS) combined with an OA of contrasting carbon (C) availability were assessed for their effects on soil respiration, soil inorganic N concentrations, and soil bacterial and fungal diversity. When combined with an OA, chemical fumigation decreased soil respiration, regardless of C availability, and apparent plant residue decomposition compared to amended non-fumigated soil. Chemical fumigation with MS only affected bacterial diversity when combined with a labile OA. MS fumigation did not affect fungal diversity. Chemical fumigation with CP used alone or combined with an OA decreased bacterial and fungal species richness and evenness and yielded the most dissimilar bacterial and fungal community compared to all other treatments. Overall, the results of this thesis suggest that 1) chemical fumigation had a greater impact on the soil N cycle, N-related microorganisms, and bacterial diversity than biofumigation, and 2) chemical fumigation reduced soil respiration, indicative of reduced OA decomposition, and altered microbial diversity regardless of soil OA or C availability.
Author : Arvin Mosier
Publisher : Island Press
ISBN 13 : 1597267430
Total Pages : 320 pages
Book Rating : 4.5/5 (972 download)
Download or read book Agriculture and the Nitrogen Cycle written by Arvin Mosier and published by Island Press. This book was released on 2013-04-10 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen is an essential element for plant growth and development and a key agricultural input-but in excess it can lead to a host of problems for human and ecological health. Across the globe, distribution of fertilizer nitrogen is very uneven, with some areas subject to nitrogen pollution and others suffering from reduced soil fertility, diminished crop production, and other consequences of inadequate supply. Agriculture and the Nitrogen Cycle provides a global assessment of the role of nitrogen fertilizer in the nitrogen cycle. The focus of the book is regional, emphasizing the need to maintain food and fiber production while minimizing environmental impacts where fertilizer is abundant, and the need to enhance fertilizer utilization in systems where nitrogen is limited. The book is derived from a workshop held by the Scientific Committee on Problems of the Environment (SCOPE) in Kampala, Uganda, that brought together the world's leading scientists to examine and discuss the nitrogen cycle and related problems. It contains an overview chapter that summarizes the group's findings, four chapters on cross-cutting issues, and thirteen background chapters. The book offers a unique synthesis and provides an up-to-date, broad perspective on the issues of nitrogen fertilizer in food production and the interaction of nitrogen and the environment.
Author : José Trinidad Vásquez
Publisher :
ISBN 13 :
Total Pages : 218 pages
Book Rating : 4.:/5 (3 download)
Download or read book The Effects of Host Nutrition and Soil Fumigation on the Penetration and Pathogenicity of Meloidogyne Javanica (Treub, 1885) Chitwood, 1949 on Tomato written by José Trinidad Vásquez and published by . This book was released on 1967 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Joseph Celester Crofton
Publisher : Hassell Street Press
ISBN 13 : 9781014305336
Total Pages : 56 pages
Book Rating : 4.3/5 (53 download)
Download or read book Effect of Nitrogen Fertilizer on Nitrification and Accumulation of Organic Matter in the Soil, and Yield and Composition of Wheat Following Normal and Excessive Applications of Straw in Pot Cultures written by Joseph Celester Crofton and published by Hassell Street Press. This book was released on 2021-09-09 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author : James Kemp Plummer
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.3/5 (91 download)
Download or read book Some Effects of Oxygen and Carbon Dioxide on Nitrification and Ammonification in Soils written by James Kemp Plummer and published by . This book was released on 1916 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ulrike Lebender
Publisher : Cuvillier Verlag
ISBN 13 : 3736947658
Total Pages : 144 pages
Book Rating : 4.7/5 (369 download)
Download or read book Effect of mineral N fertilizers – N form, amount and way of application – on nitrous oxide emissions from croplands written by Ulrike Lebender and published by Cuvillier Verlag. This book was released on 2014-07-24 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present work evaluated the effect of mineral nitrogen (N) fertilizer application during crop production on the potential risk of gaseous N loss in the form of nitrous oxide (N2O). Nitrous oxide (N2O) is an environmentally important atmospheric trace gas and contributes to the anthropogenic greenhouse effect. In addition, it is a precursor to photochemical nitric oxide (NO) production in the stratosphere which leads to stratospheric ozone depletion. Agriculture is considered to be the main source of anthropogenic N2O, with agricultural soils representing the single largest source due to nitrogen fertilizer applications during crop production. The purpose of this study was to examine the effects of mineral N fertilizers (N form, amount, mode of application) on N2O emissions from fertilized croplands in north-west Germany. Therefore several field trials, one greenhouse pot experiment and two incubation experiments were conducted. Nitrous oxide fluxes were measured by means of the closed chamber method. The length of the experimental period varied between experiments from several weeks (42 days) up to one-year measurement campaigns. The amount of N2O emitted during the crop growth period depended on the N form applied as well as on the mode of application, and a linear relationship between cumulative N2O emissions and total N fertilizer amount applied was found.
Author : University of California, Davis. Department of Land, Air, and Water Resources
Publisher :
ISBN 13 :
Total Pages : 80 pages
Book Rating : 4.F/5 ( download)
Download or read book Denitrification as affected by irrigation frequency of a field soil written by University of California, Davis. Department of Land, Air, and Water Resources and published by . This book was released on 1980 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : William Stetson Dancer
Publisher :
ISBN 13 :
Total Pages : 280 pages
Book Rating : 4.:/5 (89 download)
Download or read book The Nitrification and Recovery of Nitrogen Placed at Different Depths in a Silt Loam Soil written by William Stetson Dancer and published by . This book was released on 1972 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Fertilizer Development Center (U.S.)
Publisher :
ISBN 13 :
Total Pages : 52 pages
Book Rating : 4.3/5 ( download)
Download or read book Soil-fertilizer-plant Research, 1972-l975 written by National Fertilizer Development Center (U.S.) and published by . This book was released on 1975 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jerome J. Siegel
Publisher :
ISBN 13 :
Total Pages : 264 pages
Book Rating : 4.3/5 (129 download)
Download or read book Some Physical and Biochemical Effects of Fumigants in Soils written by Jerome J. Siegel and published by . This book was released on 1951 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : William Neels
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (137 download)
Download or read book Nitrification Inhibitor, Nitrogen Source, and Herbicide Effects on Soil Bitrogen Transformations and Corn Yield written by William Neels and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen is the most limiting nutrient for crop production; however, its management has been challenging due to increasing nitrogen losses. Increased N losses have led researchers to focus on strategies for improving Nitrogen Use Efficiency (NUE). In this study, we took an integrated approach to compare the effects of N source, nitrification inhibitor and herbicide on nitrification, N loss, crop yield, residual N, and NUE. We first evaluated these factors in a twoyear field experiment. A laboratory soil incubation experiment followed. The treatments included a combination of nitrification inhibitor vs. no inhibitor, two nitrogen fertilizer sources (broadcast urea vs. injected aqueous ammonia), and a pre-emergence herbicide vs. no herbicide. Results indicated that nitrogen source has a more significant effect on NH4 + -N retention (78-80% higher in anhydrous ammonia vs. urea) than nitrification inhibitor (24-47% higher with inhibitor vs. without inhibitor) and herbicides. Similarly, nitrogen source significantly affected NO3 - -N formation (134-176% lower in anhydrous ammonia vs. urea) than nitrification inhibitor (8-31% lower with inhibitor vs. without inhibitor) and herbicides. We then evaluated the effect of nitrification inhibitor, nitrogen fertilizer source, and herbicide on (1) soil nitrification through a 25 day-soil incubation and (2) NH3 volatilization, NO3 - -N leaching, and N2O emissions through a 31-day soil column study using a loamy sand soil. Results indicated that nitrogen source had a greater effect on reducing nitrification (32.5% lower with injected aqueous ammonia vs. surface broadcast urea) compared to nitrification inhibitors (4% lower with inhibitor vs. without inhibitor) and herbicide (no effect). Surface broadest urea increased NH3 volatilization by 673% compared to injected aqueous ammonia. Injected aqueous ammonia had 22% higher NO3 - -N leaching and 33 % higher NH4 + -N leaching than urea, while nitrification inhibitor had an inconsistent effect on NO3 - -N leaching across both N sources. The results of both experiments indicated that nitrogen source plays a more significant role in regulating soil nitrogen losses than nitrification inhibitors and herbicide..
