Download or read book The Effect of Urea Ammonium Sulfate and Organic Materials on Nitrite Accumulation and Gaseous Loss of Nitrogen in Acid Soil written by Siddangouda V. Patil and published by . This book was released on 1963 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study reported here is an endeavor to contribute to better understanding of the losses of nitrogen that may result with the application of nitrogen fertilizers in the presence and absence of organic material. Although much research has been conducted on the extent of nitrogen losses from the soil with the application of urea and ammonium sulfate, more information is needed on nitrogen transformations in soils, on type and mechanisms of gaseous losses of nitrogen, and on the influence of added organic material on such transformations and losses. Accordingly, experiments were conducted to investigate the effect of the application of urea and of ammonium sulfate with and without organic materials on nitrogen transformation and on the nature and extent of gaseous loss of nitrogen from acid soil.
Download or read book The Effect of Urea Ammonium Sulfate and Organic Material on Nitrite Accumulation and Gaseous Loss of Nitrogen in Acid Soil written by Siddangouda V. Patil and published by . This book was released on 1963 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The study reported here is an endeavor to contribute to better understanding of the losses of nitrogen that may result with the application of nitrogen fertilizers in the presence and absence of organic material. Although much research has been conducted on the extent of nitrogen losses from the soil with the application of urea and ammonium sulfate, more information is needed on nitrogen transformations in soils, on type and mechanisms of gaseous losses of nitrogen, and on the influence of added organic material on such transformations and losses. Accordingly, experiments were conducted to investigate the effect of the application of urea and of ammonium sulfate with and without organic materials on nitrogen transformation and on the nature and extent of gaseous loss of nitrogen from acid soil.
Download or read book Gaseous Loss of Nitrogen from Plant Soil Systems written by J.R. Freney and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: A growing interest has been shown recently in the dymanics of nitrogen in agricultural and natural ecosystems. This has been caused by increasing demands for food and fibre by a rapidly expanding world population, and by a growing concern that increased land clearing, cultivation and use of both fertilizer and biologically fixed nitrogen can have detrimental effects on the environment. These include effects on water quality, eutrophication of surface waters and changes in atmospheric composition all caused by increased cycling of nitrogenous compounds. The input and availability of nitrogen frequently affects the productivity of farming systems more than any other single management factor, but often the nitrogen is used inefficiently. Much of the fertilizer nitrogen applied to the soil is not utilised by the crop: it is lost either in solution form, by leaching of nitrate, or in gaseous forms as ammonia, nitrous oxide, nitric oxide or dinitrogen. The leached nitrate can contaminate rivers and ground waters, while the emitted ammonia can contaminate surface waters or combine with atmospheric sulfur dioxide to form aerosols which affect visibility, health and climate. There is also concern that increased evolution of nitrous oxide will deplete the protective ozone layer of the stratosphere. The possibility of a link between the intensity of agricultural use of nitrogen, nitrous oxide emissions and amounts of stratospheric ozone has focussed attention on these interactions.
Download or read book Effects of Fertilizers on Water Quality written by National Fertilizer Development Center (U.S.) and published by . This book was released on 1969 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissertation Abstracts written by and published by . This book was released on 1964 with total page 950 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forest Fertilization Theory and Practice written by and published by . This book was released on 1968 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1970 with total page 1248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Progress in Nitrogen Cycling Studies written by Oswald van Cleemput and published by Springer Science & Business Media. This book was released on 1996 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Some Effects of Oxygen and Carbon Dioxide on Nitrification and Ammonification in Soils written by James Kemp Plummer and published by . This book was released on 1916 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Journal of Soil Science written by and published by . This book was released on 1957 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Acidity and Its Relation to the Production of Nitrate and Ammonia in Woodland Soils written by George Robin Clarke and published by . This book was released on 1924 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fertilizer Abstracts written by and published by . This book was released on 1976 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comprehensive Dissertation Index 1861 1972 Agriculture written by Xerox University Microfilms and published by . This book was released on 1973 with total page 1226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gaseous Loss of Nitrogen from Soil written by Howard Loewenstein and published by . This book was released on 1955 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Moisture and Temperature Effects on the Transformations of Nitrogen from Applied Ammonium Sulfate in a Calcareous Soil written by John Keith Justice and published by . This book was released on 1961 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen has commonly been a deficient element in the cultivated soils of the world since the beginning of agriculture. The general acceptance of the practice of using manures as a means of increasing plant growth, as shown by the records of ancient civilizations, attest to this fact. Since the time of von Liebig there has been an increasing awareness of the importance of this deficiency in soils. As a result of a better understanding of the problem and the increasing availability of commercial forms of nitrogen, a rapid increase in the use of nitrogen fertilizers has taken place in the last few decades. This increasing use of commercial forms of nitrogen is accompanied by the need for more information concerning the proper use of these materials in order to accomplish the greatest benefit. For example, with the advent of increasing use of ammonium fertilizer to improve soil productivity, there has arisen a possibility of lengthening the period from the date of the fertilizer application to the time of utilization by the crop. this advanced application, especially in the fall of the year, has many advantages and is widely advocated. The following questions need to be answered in connection with efficiency of such a practice: Will the ammonium form of nitrogen remain unoxidized in the soil over the winter months? Could it be only partially oxidized and result in an accumulation of nitrites that may cause toxicity or be lost from the soil in gaseous forms such as nitrous oxide? What are the chance for significant losses by volatilization before it is oxidized? How does the amount of moisture and the prevailing temperature affect these transformations? The study reported here is an endeavor to contribute to more complete answers to some of these questions. Although much research has been conducted relating to the effects of moisture or temperature on nitrogen transformations in the soil, more information is needed covering greater variations in the moisture and temperature levels along with the interactions of...
Download or read book Annotated Bibliographies written by Commonwealth Bureau of Soils and published by . This book was released on with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nitrogen in Agricultural Soils written by F. J. Stevenson and published by . This book was released on 1982 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt: Origem and distribution of nitrogen in soil. Inorganic forms of nitrogen in soil. Organic forms of soil nitrogen. Retention and fixation of ammonium and ammonim in soils. Biochemistry ammonification. Mineralization and Immobilization of soil nitrogem. Nitrogen trasport processes in soil. Nitrogen transformations in submerged soil. Advances in methodology for research on nitrogen transformations. Soil nitrogen budgets. Crop nitrogen requirements, utilizations, and fertilization. Nitrogen management for maximum efficiency and minimum pollution. Assesment of soil nitrogen availability. The effect of pesticides on nitrogen transformation in soils. Modeling of the soil nitrogen cycle. Economic implications of controls on nitrogen fertilizer use. Recycling of nitrogen through land application of agricultural, food processing, and municipal wastes. Energetics of nitrogen transformations. Nitrogem transfers and mass balances.
