The Effect of Nitrification Inhibition on Nitrous Oxide Emissions and Soil Nitrogen Levels in Fields Applied with Liquid Manure at Various Fall Timings PDF Download
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Author: Jillian Filmer Publisher: ISBN: Category : Languages : en Pages :
Book Description
The goal of this study was determine if nitrification inhibition, using nitrapyrin (eNtrenchTM), and timing of manure application had an effect on nitrogen losses from corn fields. This study was conducted at the Elora Research Station, Elora, Ontario from October 2016 to October 2018. Liquid hog manure was applied at four fall timings and one spring timing with and without inhibitor. Soil samples and gas samples were collected periodically throughout the fall and growing season. Inhibitor addition had no significant effect on mineral nitrogen soil content or nitrous oxide emissions. Soil nitrogen and cumulative emissions were responsive to fall application timing. There was a significant interaction between the use of inhibitor and application timing on cumulative nitrous oxide emissions. This interaction showed higher cumulative losses of nitrous oxide from manure applied without inhibitor in late April. Based on these results, fall application would be best in mid-fall (mid-October to mid-November).
Author: Jillian Filmer Publisher: ISBN: Category : Languages : en Pages :
Book Description
The goal of this study was determine if nitrification inhibition, using nitrapyrin (eNtrenchTM), and timing of manure application had an effect on nitrogen losses from corn fields. This study was conducted at the Elora Research Station, Elora, Ontario from October 2016 to October 2018. Liquid hog manure was applied at four fall timings and one spring timing with and without inhibitor. Soil samples and gas samples were collected periodically throughout the fall and growing season. Inhibitor addition had no significant effect on mineral nitrogen soil content or nitrous oxide emissions. Soil nitrogen and cumulative emissions were responsive to fall application timing. There was a significant interaction between the use of inhibitor and application timing on cumulative nitrous oxide emissions. This interaction showed higher cumulative losses of nitrous oxide from manure applied without inhibitor in late April. Based on these results, fall application would be best in mid-fall (mid-October to mid-November).
Author: Christopher Knowles Publisher: CRC Press ISBN: 1351079956 Category : Science Languages : en Pages : 252
Book Description
It is the aim of this book to present reviews on a wide range of aspects of bacterial respiratory systems. Because the on-going publication elsewhere of reviews on bacterial respiration, ablanket coverage of the field has not been attempted. Rather, a range of topics have been selected, either because they are of special current interest, they have not been reviewed recently, or they have never been reviewed.
Author: John E. Rogers Publisher: ASM Press ISBN: Category : Science Languages : en Pages : 316
Book Description
This volume reviews current data on the relationship between microbial processes and the synthesis and degradation of methane, nitrogen oxides and halomethanes in the environment.
Author: Ulrike Lebender Publisher: Cuvillier Verlag ISBN: 3736947658 Category : Science Languages : en Pages : 144
Book Description
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: K. R. Krishna Publisher: CRC Press ISBN: 1000729346 Category : Technology & Engineering Languages : en Pages : 326
Book Description
"The agricultural sky" is a dominant natural entity that has influenced, interacted with, and guided the evolution of crops, farming practices, and cropping systems. The sky—and all its components—above and near agricultural areas is an important aspect of an agricultural enterprise—as important as soils, water, and crop species. The blue sky above crops that is seemingly clear, tranquil or sometimes filled with clouds, is really a repository of a large number of gases, mineral or organic particulate matter, dust, mist, turbulent wind, innumerable species of micro-organisms, tiny biotic flora/fauna, seeds, insects, etc. The agrarian sky supports complex interactions of biotic and abiotic aspects with perhaps immediate and/or delayed influence on crops sown on the ground. This volume helps us to better understand the importance of the sky above crop fields, with the goal to encourage revolutionary agronomic procedures that lead to higher yield. It is a comprehensive treatise on the agriculture sky, covering basic definitions, limits, and explanations about atmospheric layers like troposphere, stratosphere, and the phyllosphere. The volume addresses the nutrient dynamics in the sky and their relevance to crop productivity. It looks at both natural biotic and manmade abiotic factors in the sky and how they affect what goes on below, such as from dust storms, at cloudy and/or windy locations, and from high-altitude jet streams. The author discusses wind and solar power generation in the agrarian sky and explores aeroponics to revolutionize crop production. The volume delves into several types of aerial robots, employing AI and other technology, to provide aerial spectral data that are capable of analyzing procedures, soil conditions, irrigation, insect pests, weed detection, herbicide application, soil fertility, and much more. The book includes examples from the North American Great Plains, Pampas of Argentina, Sahelian production zones of West Africa, Indo-Gangetic Plains, etc. This eye-opening book, The Agricultural Sky: A Concept to Revolutionize Farming, will be useful to students and professors in universities as well as to researchers in industry dealing with aerial aspects of farming.
Author: Lajpat R. Ahuja Publisher: John Wiley & Sons ISBN: 0891181806 Category : Technology & Engineering Languages : en Pages : 480
Book Description
Why model? Agricultural system models enhance and extend field research...to synthesize and examine experiment data and advance our knowledge faster, to extend current research in time to predict best management systems, and to prepare for climate-change effects on agriculture. The relevance of such models depends on their implementation. Methods of Introducing System Models into Agricultural Research is the ultimate handbook for field scientists and other model users in the proper methods of model use. Readers will learn parameter estimation, calibration, validation, and extension of experimental results to other weather conditions, soils, and climates. The proper methods are the key to realizing the great potential benefits of modeling an agricultural system. Experts cover the major models, with the synthesis of knowledge that is the hallmark of the Advances in Agricultural Systems Modeling series.
Author: Jillian Filmer
Author: Jillian Filmer
Author: Christopher Knowles
Author: John E. Rogers
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Author: 
Author: 
Author: Ulrike Lebender
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Author: K. R. Krishna
Author: Lajpat R. Ahuja