Download or read book Evaluating Agronomic and Environmental Impacts of Phosphorus Fertilization of Low Input Bahiagrass Pastures in Florida written by Augustine K. Obour and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT:Environmental concerns over potential phosphorus (P) losses and their impacts on water quality have prompted several revisions in P fertilizer recommendations for bahiagrass (Paspalum notatum Flügge) pastures in Florida. The current University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) fertilizer recommendations require both soil and tissue testing for bahiagrass pastures, but there are limited data to support the new recommendations. Greenhouse and field experiments (clipping and grazing studies) were conducted at UF/IFAS Range Cattle Research and Education Center in Ona, FL from 2006 to 2008 to evaluate the effects of the revised UF/IFAS fertilizer recommendations on forage yield, nutritive value and the potential impacts on water quality in bahiagrass pastures growing on a local Spodosol. The greenhouse study data indicated that dry matter yields (DMY) and tissue P concentration increased with P application. The critical minimum bahiagrass tissue P concentration below which DMY was impacted was 1.3 g kg-1. In the 2-yr field grazing study, bahiagrass herbage mass, herbage accumulation rates, crude protein (CP), and in vitro digestible organic matter (IVDOM) were not affected by P application. However, tissue P concentrations increased from 1.9 to 2.2 g kg-1 as P fertilization increased from 0 to 10 kg P ha-1. Mehlich-1 soil extractable P and leachate-P concentrations were not affected by P application.

Download or read book Soil Phosphorus Management in Subtropical Grazing Land Ecosystems written by Leandro Otavio Vieira-Filho and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: detected (6 out of 37 leaching events), inorganic fertilizer resulted in greater leachate nitrate-nitrogen (NO3-N) concentrations than biosolids. No difference in leachate P or N between biosolids and control were observed. Data demonstrated that biosolids are an effective alternative source of N and P to replace inorganic fertilizer; however, reduced biosolids application imposed by the new biosolids rule detrimentally impacted bahiagrass productivity, nutritive value, and N and P accumulation in aboveground tissue. The reductions in the agronomic performance of bahiagrass pastures will increase the likelihood that ranchers will need to supplement their biosolids fertilization program with commercial inorganic fertilizer sources, which will likely have considerably greater economic cost and environmental footprint than biosolids. Data demonstrated that biosolids can be an environmentally sound fertilizer source to perennial grass pastures, while also providing agronomic benefits such as greater forage productivity and nutritive value.

Download or read book Annual Research Report written by University of Florida. Institute of Food and Agricultural Sciences and published by . This book was released on 2004 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Research Report written by University of Florida. College of Engineering and published by . This book was released on 2004 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Research Report of the Florida Agricultural Experiment Station Institute of Food and Agricultural Sciences University of Florida Gainesville Florida written by University of Florida. Agricultural Experiment Station and published by . This book was released on 2001 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Conference Papers Index written by and published by . This book was released on 1980 with total page 1198 pages. Available in PDF, EPUB and Kindle. Book excerpt: Monthly. Papers presented at recent meeting held all over the world by scientific, technical, engineering and medical groups. Sources are meeting programs and abstract publications, as well as questionnaires. Arranged under 17 subject sections, 7 of direct interest to the life scientist. Full programs of meetings listed under sections. Entry gives citation number, paper title, name, mailing address, and any ordering number assigned. Quarterly and annual indexes to subjects, authors, and programs (not available in monthly issues).

Download or read book Proceedings of the International Grassland Conference written by and published by . This book was released on with total page 808 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Forages Volume 2 written by Kenneth J. Moore and published by John Wiley & Sons. This book was released on 2020-05-29 with total page 968 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forages: The Science of Grassland Agriculture, 7th Edition, Volume II will extensively evaluate the current knowledge and information on forage agriculture. Chapters written by leading researchers and authorities in grassland agriculture are aggregated under section themes, each one representing a major topic within grassland science and agriculture. This 7th edition will include two new additional chapters covering all aspects of forage physiology in three separate chapters, instead of one in previous editions. Chapters will be updated throughout to include new information that has developed since the last edition. This new edition of the classic reference serves as a comprehensive supplement to An Introduction to Grassland Agriculture, Volume I.

Download or read book Agrindex written by and published by . This book was released on 1991 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comprehensive Dissertation Index written by and published by . This book was released on 1973 with total page 798 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Forage Plant Ecophysiology written by Cory Matthew and published by MDPI. This book was released on 2018-03-16 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Forage Plant Ecophysiology" that was published in Agriculture

Download or read book Anais do Congresso Internacional de Pastagens written by and published by . This book was released on 1989 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Toward Sustainable Agricultural Systems in the 21st Century written by National Research Council and published by National Academies Press. This book was released on 2010-07-25 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last 20 years, there has been a remarkable emergence of innovations and technological advances that are generating promising changes and opportunities for sustainable agriculture, yet at the same time the agricultural sector worldwide faces numerous daunting challenges. Not only is the agricultural sector expected to produce adequate food, fiber, and feed, and contribute to biofuels to meet the needs of a rising global population, it is expected to do so under increasingly scarce natural resources and climate change. Growing awareness of the unintended impacts associated with some agricultural production practices has led to heightened societal expectations for improved environmental, community, labor, and animal welfare standards in agriculture. Toward Sustainable Agricultural Systems in the 21st Century assesses the scientific evidence for the strengths and weaknesses of different production, marketing, and policy approaches for improving and reducing the costs and unintended consequences of agricultural production. It discusses the principles underlying farming systems and practices that could improve the sustainability. It also explores how those lessons learned could be applied to agriculture in different regional and international settings, with an emphasis on sub-Saharan Africa. By focusing on a systems approach to improving the sustainability of U.S. agriculture, this book can have a profound impact on the development and implementation of sustainable farming systems. Toward Sustainable Agricultural Systems in the 21st Century serves as a valuable resource for policy makers, farmers, experts in food production and agribusiness, and federal regulatory agencies.

Download or read book Expos s de Sections Sp cialis es written by and published by . This book was released on 1989 with total page 808 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Building Soils for Better Crops written by Fred Magdoff and published by Sare. This book was released on 2009 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: "'Published by the Sustainable Agriculture Research and Education (SARE) program, with funding from the National Institute of Food and Agriculture, U.S. Department of Agriculture."

Download or read book Agronomy Abstracts written by and published by . This book was released on 1991 with total page 898 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes abstracts of the annual meetings of the American Society of Agronomy; Soil Science Society of America; Crop Science Society of America ( - of its Agronomic Education Division).

Download or read book Nutrient Cycling in Terrestrial Ecosystems written by Petra Marschner and published by Springer Science & Business Media. This book was released on 2007-05-01 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a comprehensive overview of nutrient cycling processes and their importance for plant growth and ecosystem sustainability. The book combines fundamental scientific studies and devised practical approaches. It contains contributions of leading international authorities from various disciplines resulting in multidisciplinary approaches, and all chapters have been carefully reviewed. This volume will support scientists and practitioners alike.