Download or read book Transformations and Transport of Applied NH4 nitrogen in Flooded Rice Culture written by Ibrahim Mustafa Bilal and published by . This book was released on 1974 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nitrogen Economy of Flooded Rice Soils written by S.K. de Datta and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: The steadily increasing cost of nitrogen fertilizer has resulted in more emphasis on basic and applied studies to improve nitrogen use efficiency in lowland rice. The efficiency of fertilizer nitrogen in farmers' fields is shockingly low ~ a luxury resource-scarce farmers in tropical Asia can ill afford. We believe it is critical to quantify the basic transformation processes and develop management practices for higher N use efficiency for two reasons. They are: 1. Nitrogen fertilizer together with water management is a key factor for achieving the yield potentials of modern rices. 2. Fertilizer nitrogen prices are high and most Asian rice farmers are poor. The International Rice Research Institute (IRRI), Philippines; Internation al Fertilizer Development Center (IFDC), USA; Commonwealth Scientific and Industrial Research Organization (CSIRO), Australia; U.S. Universities (Louisiana, Cornell, California, Arkansas and others); and Dr Justus Leibig University in West Germany are actively engaged in individual or collaborative research that addresses basic transformation processes on N gains and losses and management practices to maximize N use efficiency in rice. It is appropriate to update and summarize, in a double issue of Fertilizer Research, the 10 papers presented at the special symposium organized by the American Society of Agronomy (ASA) at the 75th Annual Meeting in Washington, D.C. in 1983. S.K. De Datta, Head of Agronomy Department, IRRI, was chairman of the International Agronomy Division of ASA (A-6) in 1982 and 1983.

Download or read book A Conceptual Nitrogen Model for Flooded Rice Culture written by Linda Plummer Wagenet and published by . This book was released on 1975 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sudan Sudanese written by Osman Hassan Ahmed and published by . This book was released on 1982 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Fate of Applied Ammonium and Nitrate Nitrogen in Flooded Rice Soils written by G. R. Chaplin and published by . This book was released on 1970 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nitrogen in Flooded Rice Culture written by H. Taslim and published by . This book was released on 1981 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Commencement Ceremony written by University of California, Davis. Graduate Division and published by . This book was released on 1975 with total page 74 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 1983 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Soil and Water Engineering written by Balram Panigrahi and published by CRC Press. This book was released on 2017-03-03 with total page 617 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modeling aspects have added a new dimension in research innovations in all branches of engineering. In the field of soil and water engineering, they are increasingly used for planning, development, and management of land and water resources, including analysis of quantity and quality parameters of surface and ground water, flood forecasting and control measures, optimum allocation and utilization of irrigation water. The application of these models saves considerable time in decision support systems and helps in conservation and optimum allocations of scarce precious natural resources.

Download or read book Agronomy News written by and published by . This book was released on 1975 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sept.-Oct. issue includes list of theses and dissertations for U.S. and Canadian graduate degrees granted in crop science, soil science, and agronomic science during the previous academic year.

Download or read book Puddling Against Dry Plowing for Lowland Rice Culture in Surinam written by W. Scheltema and published by Bernan Press(PA). This book was released on 1974 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: The influence of tillage on rice grown on heavy Surinam clay soils was investigated in pot and field trials. Included were interactions with seed rate, nitrogen dressing and distribution, water management, and variety. Four procedures for tilled layer and seedbed preparation were studied morphologically, physically and chemically: wet, dry/wet, dry and zero.

Download or read book National Union Catalog written by and published by . This book was released on with total page 1034 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes entries for maps and atlases.

Download or read book Carbon and Nitrogen Dynamics in Flooded Soils written by G. J. D. Kirk and published by Int. Rice Res. Inst.. This book was released on 2000 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Rice written by Achim Dobermann and published by Int. Rice Res. Inst.. This book was released on 2000 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rice ecosystems; Nutrient management; Mineral deficiencies; Mineral toxicities; Tools and information.

Download or read book Properties and Management of Soils in the Tropics written by Pedro A. Sanchez and published by Cambridge University Press. This book was released on 2019-01-10 with total page 685 pages. Available in PDF, EPUB and Kindle. Book excerpt: Long-awaited second edition of classic textbook, brought completely up to date, for courses on tropical soils, and reference for scientists and professionals.

Download or read book Water wise Rice Production written by B. A. M. Bouman and published by Int. Rice Res. Inst.. This book was released on 2002 with total page 352 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 1972 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: