The Effect of Time of Nitrogen Application on the Yield PDF Download
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Author: Patrick Bioma Kiadii
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 144
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Book Description
Author: Patrick Bioma Kiadii
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 144
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Book Description
Author: Melville Graham Mason
Publisher:
ISBN: 9780646039329
Category : Nitrogen fertilizers
Languages : en
Pages : 9
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Book Description
Author: Robert W. Pearson
Publisher:
ISBN:
Category : Nitrogen fertilizers
Languages : en
Pages : 24
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Book Description
Nitrogen fertilizer broadcast in November or December on widely different soils at seven locations in Alabama, Georgia, and Mississippi during 1955-59 was only 49 percent as effective as nitrogen fertilizer applied the following spring when measured by corn yields. In terms of nitrogen recovered, the relative effectiveness was 62 percent. There were no consistent differences among the five nitrogen sources applied in the fall as measured by corn yields, but nitrogen recovery tended to be lower from urea than from the other sources. Considerable residual effects of spring-applied nitrogen were found over a period of 16 months based on both yield and nitrogen uptake by the crops. Average uptakes of 25 and 34 pounds per acre of additional nitrogen were made by the second and third crops, respectively, from the 200-pound original application. This residual nitrogen produced average yield increases of 1,600 pounds of dry forage and 19 bushels of corn per acre. These results emphasize the economic importance of residual nitrogen and the need for soil test procedures for its estimation.
Author: Jose Francois Brochier
Publisher:
ISBN:
Category :
Languages : en
Pages : 186
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Book Description
Author: Wayne P. Crighton
Publisher:
ISBN:
Category :
Languages : en
Pages : 168
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Book Description
Author: V. A. L. Sargeant
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 104
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Book Description
Author: Randall J. Vos
Publisher:
ISBN:
Category : Biofertilizers
Languages : en
Pages : 146
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Book Description
Author: Freddie Lee Alt
Publisher:
ISBN:
Category : Forage plants
Languages : en
Pages : 142
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Book Description
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.
Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 20
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Book Description
