Nitrogen Fertilizer

Author : Karlene Winslow
Publisher : Nova Science Publishers
Page : 0 pages
File Size : 55,5 Mb
Release : 2014-09
Category : Nitrogen fertilizers
ISBN : 1633215857

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Nitrogen Fertilizer by Karlene Winslow Pdf

Nitrate and nitrite are two ions largely diffused in the environment because they take part in the nitrogen cycle. Moreover, a great part of atmospheric nitrogen may be oxidized to nitrite and nitrate by microorganisms in plants, soil or water. The more stable form of oxidized nitrogen is nitrate ion, but, through microbial activity, it can be reduced to nitrite ion which is more chemically reactive. Nitrate and its salts are widely used, especially as inorganic fertilizers, and for many other purposes such as oxidizing agents, explosives, in the chemical industry and as food preservatives. This book discusses the agricultural uses, management practices and environmental effects of nitrogen fertilizers.

Author : Kathy Kelley Anderson
Publisher : University of California, Agriculture and Natural Resources
Page : 32 pages
File Size : 45,8 Mb
Release : 2006
Category : Technology & Engineering
ISBN : 1879906805

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Guide to Efficient Nitrogen Fertilizer Use in Walnut Orchards by Kathy Kelley Anderson Pdf

This award-winning publication gives the most in-depth information available on nitrogen fertilization of walnut orchards. Discusses the variables that make nitrogen management of each orchard a unique challenge; and provides the tools that let you manage your orchard efficiently and economically. Chapters discuss concepts of fertilization, nitrogen budgeting, choosing and using nitrogen fertilizers, and fertilizing young trees.

Author : Li Wang,Ying Zhao,Jianwei Lu
Publisher : Frontiers Media SA
Page : 141 pages
File Size : 43,9 Mb
Release : 2024-05-22
Category : Science
ISBN : 9782832549322

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Efficient Nitrogen Fertilizer Management to Improve Crop Production by Li Wang,Ying Zhao,Jianwei Lu Pdf

The improvement in global crop production over the past several decades has been associated with increased use of nitrogen (N) fertilizer. However, on average, less than 50% of the nitrogen added to croplands globally is harvested as crop product. Inefficient use of N fertilizer by crops will result in substantial agricultural nitrogen losses, posing threats to human and ecosystem health. Crop production must increase dramatically to meet the growing demand for food and biofuels projected for 2050. To boost crop yield with lowered environmental cost, the use of high-potential crop cultivars and efficient nitrogen fertilizer management are required. Recent advances in N management practices, such as enhanced-efficiency fertilizer use, improved manure management and machine deep placement of fertilizer have opened up new strategies to achieve improved crop production with N use reduction. A better understanding of the key crop traits and regulatory processes in response to N fertilizer managements will facilitate the increase in crop yield, N use efficiency while minimizing impacts on the environment.

Author : Anonim
Publisher : Unknown
Page : 116 pages
File Size : 55,6 Mb
Release : 1986
Category : Competition, International
ISBN : UCR:31210023597592

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A Competitive Assessment of the U.S. Nitrogen Fertilizer Industry by Anonim Pdf

Author : M. A. Radwan
Publisher : Unknown
Page : 16 pages
File Size : 52,7 Mb
Release : 1990
Category : Nitrogen fertilizers
ISBN : MINN:31951D02986687G

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Influence of Family and Nitrogen Fertilizer on Growth and Nutrition of Western Hemlock Seedlings by M. A. Radwan Pdf

Author : Richard E. Miller
Publisher : Unknown
Page : 30 pages
File Size : 51,6 Mb
Release : 1973
Category : Forest soils
ISBN : MINN:31951D02995139A

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Seven-year Response of 35-year-old Douglas-fir to Nitrogen Fertilizer by Richard E. Miller Pdf

Author : James Leo Paschal,Burton Leroy French
Publisher : Unknown
Page : 80 pages
File Size : 45,9 Mb
Release : 1956
Category : Corn
ISBN : UVA:X030348507

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A Method of Economic Analysis Applied to Nitrogen Fertilizer Rate Experiments on Irrigated Corn by James Leo Paschal,Burton Leroy French Pdf

Author : Jens Tierling
Publisher : Cuvillier Verlag
Page : 118 pages
File Size : 44,8 Mb
Release : 2017-05-02
Category : Science
ISBN : 9783736985063

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The effects of different mineral nitrogen fertilizer forms on N2O emissions from arable soils under aerobic conditions by Jens Tierling Pdf

Intensively managed agricultural soils are a major source of the greenhouse gas nitrous oxide (N2O), mainly due to the use of mineral nitrogen fertilizers which stimulate microbial processes in soils that form N2O. While oxidized N fertilizer forms can be subject to denitrification, reduced N forms must first be oxidized by nitrification to become available for denitrification. Because the contribution of these processes to N2O emissions depends on the prevailing soil conditions, the choice of the N fertilizer form has the potential to mitigate N2O emissions from fertilized soils. The present study focused on comparing amid-, ammonium- and nitrate-based mineral fertilizers with regard to nitrogen transformation dynamics and N2O production under controlled as well as field conditions. For this two distinct methodological approaches to measure N2O emissions were evaluated and deployed. Furthermore, the effects of soil pH and the alkalizing hydrolysis of urea were investigated. It was shown that especially under aerobic conditions the N fertilizer form can significantly affect N2O production in soils, and that nitrite dynamics are important especially for nitrification-derived N2O emissions. Thus, the careful consideration of the N fertilizer form can be a measure to mitigate emissions from farmland.

Author : Peter Bacon
Publisher : CRC Press
Page : 630 pages
File Size : 41,5 Mb
Release : 1995-01-23
Category : Technology & Engineering
ISBN : 0824789946

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Nitrogen Fertilization in the Environment by Peter Bacon Pdf

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 : International Network on Soil Fertility and Fertilizer Evaluation for Rice. Meeting,International Rice Research Institute
Publisher : Int. Rice Res. Inst.
Page : 267 pages
File Size : 50,5 Mb
Release : 1987
Category : Technology & Engineering
ISBN : 9789711041748

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Efficiency of Nitrogen Fertilizers for Rice by International Network on Soil Fertility and Fertilizer Evaluation for Rice. Meeting,International Rice Research Institute Pdf

Author : James Richard Adams,M. S. Anderson,W. C. Hulbert
Publisher : Unknown
Page : 56 pages
File Size : 45,5 Mb
Release : 1961
Category : Liquid fertilizers
ISBN : UIUC:30112019251963

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Liquid Nitrogen Fertilizers for Direct Application by James Richard Adams,M. S. Anderson,W. C. Hulbert Pdf

Author : Walter Marion Broadfoot
Publisher : Unknown
Page : 4 pages
File Size : 47,5 Mb
Release : 1966
Category : Forest soils
ISBN : UIUC:30112104067233

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Five Years of Nitrogen Fertilization in a Sweetgum-oak Stand by Walter Marion Broadfoot Pdf

Author : K.S. Kumarasinghe,D.L. Eskew
Publisher : Springer Science & Business Media
Page : 156 pages
File Size : 47,8 Mb
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 9789401116817

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Isotopic Studies of Azolla and Nitrogen Fertilization of Rice by K.S. Kumarasinghe,D.L. Eskew Pdf

Nitrogen is the most limiting element for crop production. Traditionally, expensive commercial fertilizers are used to correct soil nitrogen deficiencies. Indeed, 50% of the increase in rice yields after World War II can be attributed to increased fertilizer nitrogen use. Although an increased rate of fertilizer nitrogen application has been advocated to meet the growing demand for food, it is unrealistic to advise the farmers to apply fertilizers they could hardly afford, and whose prices are likely to escalate in the years ahead. In addition, when they are not applied judiciously there are problems of environmental pollution as plants are capable of taking up only a relatively small portion of the applied nitrogen, a substantial amount being lost through various chemical and biological processes. The exploitation of cheaper alternatives or supplements to fertilizers have therefore gained much interest in recent years. Our increased interest in biological nitrogen fixation as a supplement or alternative to nitrogen fertilizers led to the convening of a consultants' meeting on `The Role of Isotopes in Studies on Nitrogen Fixation and Nitrogen Cycling by Blue-Green Algae and the Azolla-Anabaena azollae Association', in Vienna from 11--15 October 1982. The consultants' group recommended that the Joint FAI/IAEA Division of Nuclear Techniques in Food and Agriculture embark on a coordinated research programme in this field and that initial emphasis should be placed on Azolla-Anabaena symbiosis. As a result, such a programme was initiated in 1984, which was concluded in 1989. The results and conclusions reported here are those that were generated during the five years of its operation.

Author : Vincent Sauchelli
Publisher : Unknown
Page : 432 pages
File Size : 45,9 Mb
Release : 1964
Category : Science
ISBN : MINN:31951000038423R

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Fertilizer Nitrogen by Vincent Sauchelli Pdf

Author : Franklin Elmer Allison,James Edward McMurtrey,Joseph M. Braham
Publisher : Unknown
Page : 62 pages
File Size : 53,5 Mb
Release : 1924
Category : Agriculture
ISBN : UIUC:30112019238796

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Field Experiments with Atmospheric-nitrogen Fertilizers by Franklin Elmer Allison,James Edward McMurtrey,Joseph M. Braham Pdf