Download or read book Nitrogen Fertilizer written by Karlene Winslow and published by Nova Science Publishers. This book was released on 2014-09 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Residual Effects of Fall and Spring applied Nitrogen Fertilizers on Crop Yields in the Southeastern United States written by Robert W. Pearson and published by . This book was released on 1961 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book The Manufacturing and Marketing of Nitrogen Fertilizers in the United States written by Duane A. Paul and published by . This book was released on 1977 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fertilizer Nitrogen written by Vincent Sauchelli and published by . This book was released on 1964 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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.

Download or read book Fertilisers for Turf written by David Mutrie Lawson and published by STRI. This book was released on 1996 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fertilizer application plays an important part in obtaining amenity turf of the highest standard, be it in the role of aiding wear tolerance in soccer turf, disease resistance in the turfgrasses of the golf green or providing the visual appeal of an ornamental lawn. These, and other factors in turf quality, are affected by the type of fertilizer used, the amounts applied and the timing of application.

Download or read book Nitrogen Fertilization in the Environment written by Peter Bacon and published by CRC Press. This book was released on 1995-01-23 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book A Competitive Assessment of the U S Nitrogen Fertilizer Industry written by and published by . This book was released on 1986 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Field Experiments with Atmospheric nitrogen Fertilizers written by Franklin Elmer Allison and published by . This book was released on 1924 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Managing Nitrogen for Crop Production written by Peter Scharf and published by John Wiley & Sons. This book was released on 2020-01-22 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Among crop nutrients, nitrogen has the most complex chemistry and behavior in soil, gives the largest yield responses, and is the most difficult to manage. Managing Nitrogen in Crop Production condenses the latest research and thinking from leading experts in nitrogen. The result will increase your understanding of nitrogen and your odds of managing it successfully.

Download or read book Seven year Response of 35 year old Douglas fir to Nitrogen Fertilizer written by Richard E. Miller and published by . This book was released on 1973 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nitrogen Use and Behavior in Crop Production written by L. Fred Welch and published by . This book was released on 1979 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most plants absorbmore nitrogen than any other nutrient. Because the amount needed is so large and easily be lost from many soils, nitrogen is usually the most limiting nutrient for plant growth. Although about 79 percent of the atmosphere is nitrogen, only nitrogen-fixingplants such as legumeswith their associated bacteria are able to use this abundant source. The nonleguminous grain crops must receive supplemental nitrogen to produce satisfactory yields. Until the last few decades the supply of available nitrogen in the soil was increased primarily by legumes and manure. These sources should be used when economically feasible, but many important grain-producing areas of the world must now rely on commercial fertilizer nitrogen. For economic reasons researchers and growers have been interested for many years in improving yields from each unit of nitrogen. Recently, however, the efficient use of nitrogen has become an environmental issue as well, because high nitrate concentrations in water may be harmful to humans, especiali infants, and to livestock. If plants absorb more of the addedfertilizer nitrogen, then less is likely to leach from fields into drinking water. Improving nitrogen efficiency has also become crucial in order to conserve dwinling supplies of natural gas, which is used in large quantities to manufacture nitrogenfertilizers.

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.

Download or read book Fertilizer Abstracts written by and published by . This book was released on 1970 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Different Sources of Fertilizer Nitrogen on Growth and Nutrition of Western Hemlock Seedlings written by M. A. Radwan and published by . This book was released on 1980 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fertiliser Essentials written by Justin Baird and published by NSW Agriculture. This book was released on 2021-09-09 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fertiliser Essentials is a deep dive into the importance of fertiliser management to a successful farming enterprise. Whether your primary business is cropping, grazing, or horticulture... there is something for you. Whether you use manufactured or natural fertilisers... there is something for you. And whether you apply fertilisers using a tractor or a drone... there is something for you. Fertiliser Essentials is the quintessential reference work for fertiliser use in Australia in the early 21st Century. Beautifully designed and extensively referenced, it is a must-read for anyone working or interested in modern agriculture. In full colour and 224 pages. Originally produced in the mid 1990s, Fertiliser Essentials is the fifth edition of this seminal publication. The fifth edition is divided into four sections: 1. Soils and fertilisers 2. Major elements 3. Micronutrients and natural fertilisers 4. Equipment, precision and calculations The aims of the book are: · to give land managers a basic knowledge of the principles of fertiliser use · to show how these principles can be used in growing crops and pastures. The book covers some horticultural and viticultural topics, but these are not dealt with in detail · to examine the environmental effects of fertilisers · to briefly introduce alternatives to traditional fertiliser strategies. TABLE OF CONTENTS Part 1 Soils and fertilisers Chapter 1. Introduction Chapter 2. Safety Chapter 3. Understanding fertiliser terms Chapter 4. Soil testing Chapter 5. Healthy soils and nutrient management Chapter 6. Acid soils and the pH connection Chapter 7. Plant nutrition Chapter 8. Possible crop nutrition problems Part 2 major elements Chapter 9. The major element Nitrogen Chapter 10. Nitrogen in pastures Chapter 11. Nitrogen for crops Chapter 12. The major element Phosphorus Chapter 13. Phosphorus for pastures Chapter 14. Phosphorus for crops Chapter 15. The major element Potassium Chapter 16. The major element Sulfur Part 3 micronutrients and natural fertilisers Chapter 17. Micronutrients Chapter 18. The micronutrient Molybdenum Chapter 19. The micronutrient Boron Chapter 20. The micronutrient Zinc Chapter 21. The micronutrient Selenium Chapter 22. The micronutrient Cobalt Chapter 23. The micronutrient Copper Chapter 24. The micronutrient Manganese Chapter 25. The micronutrient chlorine Chapter 26. The micronutrient Iron Chapter 27. Naturally-derived fertilisers Part 4 equipment, precision and calculations Chapter 28. Application equipment Chapter 29. Precision Agriculture Chapter 30. Calculating fertiliser costs and rates Chapter 31. Scenarios Chapter 32. Nutrient program checklist Glossary Appendix 1. Managing work health and safety (WHS) risks Appendix 2. Relative tolerance of various crops and pastures to acid soils Appendix 3. Relative tolerance of crops and pastures to soil salinity Appendix 4. Fertiliser manufacturer product card Appendix 5. Nutrient removal by crops# Appendix 6 Legume inoculant groups Appendix 7. Bout width and application rate Appendix 8. Industry organisations Appendix 9. Record templates

Download or read book Plant Nitrogen written by Peter J. Lea and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: Jointly published with INRA, Paris. This book covers all aspects of the transfer of nitrogen from the soil and air to a final resting place in the seed protein of a crop plant. It describes the physiological and molecular mechanisms of ammonium and nitrate transport and assimilation, including symbiotic nitrogen fixation by the Rhizobiacea. Amino acid metabolism and nitrogen traffic during plant growth and development and details of protein biosynthesis in the seeds are also extensively covered. Finally, the effects of the application of nitrogen fertilisers on plant growth, crop yield and the environment are discussed. Written by international experts in their field, Plant Nitrogen is essential reading for all plant biochemists, biotechnologists, molecular biologists and physiologists as well as plant breeders, agricultural engineers, agronomists and phytochemists.