Field Studies of Nitrogen Management with Nitrification Inhibitors on Winter Wheat PDF Download
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Author: Mowaffak Kasim Mohammad
Publisher:
ISBN:
Category :
Languages : en
Pages : 150
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Book Description
Author: Mowaffak Kasim Mohammad
Publisher:
ISBN:
Category :
Languages : en
Pages : 150
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Book Description
Author: Stephen Edmond Taylor
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Doria Ali
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
A site-specific N management approach has the potential to manage in-field variability and increase production and economic efficiencies by optimizing the nitrogen (N) inputs. Field studies were conducted to investigate the grain yield and protein responses of hard red winter wheat (Triticum aestivum L.) to several N management strategies across variable landscapes. Nine N treatments consisted of various combinations of N rates, sources and timings were applied at specific stages of crop development. Delta yield, delta protein and net returns were calculated to determine the spatial response to N across the field. Those parameters for each treatment varied spatially across the field. Normalized difference vegetation index and leaf area index could not explain the spatial response to N accurately. Overall, grain yield and protein responses to N strategies were highly dependent on the spatial position in each field; however, predicting the responses in time for deploying N management strategies were only weakly associated with canopy sensor data or soil characteristics.
Author: Daniel John Quinn
Publisher:
ISBN: 9780355852608
Category : Electronic dissertations
Languages : en
Pages : 108
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Book Description
Author: R. Gasche
Publisher: Springer Science & Business Media
ISBN: 9781402011139
Category : Nature
Languages : en
Pages : 362
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Book Description
This volume summarizes the current knowledge on the exchange of trace gases between forests and the atmosphere with the restriction that exclusively carbon and nitrogen compounds are included. For this purpose the volume brings together and interconnects knowledge from different disciplines of biological and atmospheric sciences. It covers microbial and plant processes involved in the production and consumption of these trace gases; the exchange processes between forest soils and vegetation on the one hand, and the atmosphere on the other hand; the fate of the trace gases exchanged inside the atmosphere as well as environmental influences on the exchange of trace gases between forest ecosystems and the atmosphere. With this interdisciplinary approach the volume provides the background for an evaluation of the exchange of trace gases between forest ecosystems and the atmosphere and man-made disturbances of this exchange.
Author:
Publisher:
ISBN:
Category : Hydrology
Languages : en
Pages : 972
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Book Description
Author: David P. Wall
Publisher:
ISBN:
Category : Nitrogen fertilizers
Languages : en
Pages : 162
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Book Description
Author: Peter Bacon
Publisher: CRC Press
ISBN: 9780824789947
Category : Technology & Engineering
Languages : en
Pages : 630
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Book Description
This study examines the interactions between nitrogen and the ecosystem and discusses nitrogen fertilization practices around the world. Simulation models that play an important role in determining the dynamics of source-sink relationships are presented, helping to pinpoint inefficiencies and develop strategies to synchronize nitrogen supply and demand.
Author: Oswald van Cleemput
Publisher: Springer Science & Business Media
ISBN: 9780792339625
Category : Nature
Languages : en
Pages : 744
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Book Description
This volume contains the proceedings of the 8th Nitrogen Workshop which was held at the University of Ghent, Belgium, from 5 to 8 September 1994.
Author: R.F. Follett
Publisher: Gulf Professional Publishing
ISBN: 0080537561
Category : Technology & Engineering
Languages : en
Pages : 539
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Book Description
Nitrogen in the Environment: Sources, Problems, and Management is the first volume to provide a holistic perspective and comprehensive treatment of nitrogen from field, to ecosystem, to treatment of urban and rural drinking water supplies, while also including a historical overview, human health impacts and policy considerations. It provides a worldwide perspective on nitrogen and agriculture. Nitrogen is one of the most critical elements required in agricultural systems for the production of crops for feed, food and fiber. The ever-increasing world population requires increasing use of nitrogen in agriculture to supply human needs for dietary protein. Worldwide demand for nitrogen will increase as a direct response to increasing population. Strategies and perspectives are considered to improve nitrogen-use efficiency. Issues of nitrogen in crop and human nutrition, and transport and transformations along the continuum from farm field to ground water, watersheds, streams, rivers, and coastal marine environments are discussed. Described are aerial transport of nitrogen from livestock and agricultural systems and the potential for deposition and impacts. The current status of nitrogen in the environment in selected terrestrial and coastal environments and crop and forest ecosystems and development of emerging technologies to minimize nitrogen impacts on the environment are addressed. The nitrogen cycle provides a framework for assessing broad scale or even global strategies to improve nitrogen use efficiency. Growing human populations are the driving force that requires increased nitrogen inputs. These increasing inputs into the food-production system directly result in increased livestock and human-excretory nitrogen contribution into the environment. The scope of this book is diverse, covering a range of topics and issues from furthering our understanding of nitrogen in the environment to policy considerations at both farm and national scales.
