Whole Farm Nutrient Budgets Of Two Dairy Farms In Atlantic Canada
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Whole Farm Nutrient Budgets Of Two Dairy Farms In Atlantic Canada
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Author : Jeffrey Nimmo
language : en
Publisher:
Release Date : 2011
Whole Farm Nutrient Budgets Of Two Dairy Farms In Atlantic Canada written by Jeffrey Nimmo and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.
ABSTRACT: Whole farm nutrient budgets (WFNB) enable producers to link dairy herd management with traditional field nutrient management plans. The objective of this study was to calculate WFNBs of nitrogen, phosphorus, and potassium (N, P, and K) at a commercial farm in New Brunswick and in Prince Edward Island. Reliable estimates of N fixation from alfalfa and red clover on the farms were obtained with adjustments to the Høgh-Jensen et al. (2004) dry matter conversion models. The farms had surpluses of N, P, and K. Both farms imported feed as well as nutrient inputs for crop production. Surpluses of all nutrients were typical in comparison to WFNBs of similar dairy farms; however, the nutrient use efficiencies were low. The imported manure and fertilizer used in the crop production components contributed to surpluses of N and P which could likely be reduced to improve overall farm nutrient use efficiency.
Nutrient Budgeting As A Tool For Nutrient Management On A Wisconsin Dairy Farm
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Author : Janet Paige Harrison
language : en
Publisher:
Release Date : 1993
Nutrient Budgeting As A Tool For Nutrient Management On A Wisconsin Dairy Farm written by Janet Paige Harrison and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with categories.
Nitrogen Use To Improve Sustainable Yields In Agricultural Systems
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Author : Sudhakar Srivastava
language : en
Publisher: Frontiers Media SA
Release Date : 2023-11-01
Nitrogen Use To Improve Sustainable Yields In Agricultural Systems written by Sudhakar Srivastava and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-11-01 with Science categories.
Greenhouse Gas Emissions And Mitigation Microbes Mechanisms And Modeling
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Author : Baoli Zhu
language : en
Publisher: Frontiers Media SA
Release Date : 2024-05-29
Greenhouse Gas Emissions And Mitigation Microbes Mechanisms And Modeling written by Baoli Zhu and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-05-29 with Science categories.
Currently, the global average temperature is projected to increase by 0.2 °C per decade due to past and ongoing greenhouse gas (GHG) emissions. To limit global warming to 1.5 °C above pre-industrial levels, not only does carbon dioxide (CO2) emission need to reach net zero around 2050, but the emissions of other GHGs also have to reduce substantially. Nitrous oxide (N2O) and methane (CH4) are very important GHGs, and their global warming potentials are 300 and 25 times that of CO2 over a 100-year time scale. Since pre-industrial times, atmospheric N2O concentrations have increased by more than 20%, and CH4 concentrations have nearly tripled to the current 1900 ppb. Studies have suggested that the ongoing increase of atmospheric N2O and CH4 emissions is mostly attributed to microbial activities.
World Agricultural Economics And Rural Sociology Abstracts
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Author :
language : en
Publisher:
Release Date : 1979
World Agricultural Economics And Rural Sociology Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with Agriculture categories.
Review Of The New York City Watershed Protection Program
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Author : National Academies of Sciences, Engineering, and Medicine
language : en
Publisher: National Academies Press
Release Date : 2020-12-04
Review Of The New York City Watershed Protection Program written by National Academies of Sciences, Engineering, and Medicine and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-12-04 with Science categories.
New York City's municipal water supply system provides about 1 billion gallons of drinking water a day to over 8.5 million people in New York City and about 1 million people living in nearby Westchester, Putnam, Ulster, and Orange counties. The combined water supply system includes 19 reservoirs and three controlled lakes with a total storage capacity of approximately 580 billion gallons. The city's Watershed Protection Program is intended to maintain and enhance the high quality of these surface water sources. Review of the New York City Watershed Protection Program assesses the efficacy and future of New York City's watershed management activities. The report identifies program areas that may require future change or action, including continued efforts to address turbidity and responding to changes in reservoir water quality as a result of climate change.
Encyclopedia Of Biodiversity
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Author :
language : en
Publisher: Academic Press
Release Date : 2013-02-05
Encyclopedia Of Biodiversity written by and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-02-05 with Nature categories.
The 7-volume Encyclopedia of Biodiversity, Second Edition maintains the reputation of the highly regarded original, presenting the most current information available in this globally crucial area of research and study. It brings together the dimensions of biodiversity and examines both the services it provides and the measures to protect it. Major themes of the work include the evolution of biodiversity, systems for classifying and defining biodiversity, ecological patterns and theories of biodiversity, and an assessment of contemporary patterns and trends in biodiversity. The science of biodiversity has become the science of our future. It is an interdisciplinary field spanning areas of both physical and life sciences. Our awareness of the loss of biodiversity has brought a long overdue appreciation of the magnitude of this loss and a determination to develop the tools to protect our future. Second edition includes over 100 new articles and 226 updated articles covering this multidisciplinary field— from evolution to habits to economics, in 7 volumes The editors of this edition are all well respected, instantly recognizable academics operating at the top of their respective fields in biodiversity research; readers can be assured that they are reading material that has been meticulously checked and reviewed by experts Approximately 1,800 figures and 350 tables complement the text, and more than 3,000 glossary entries explain key terms
Bibliography Of Agriculture
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Author :
language : en
Publisher:
Release Date : 1999
Bibliography Of Agriculture written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Agriculture categories.
Bibliography Of Agriculture With Subject Index
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Author :
language : en
Publisher:
Release Date : 2000
Bibliography Of Agriculture With Subject Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Agriculture categories.
Environmental Impacts Of Pasture Based Farming
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Author : Richard W. McDowell
language : en
Publisher: CABI
Release Date : 2008
Environmental Impacts Of Pasture Based Farming written by Richard W. McDowell and has been published by CABI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Technology & Engineering categories.
Focusing on the different types of grassland farming and their impact on the environment, Environmental Impacts of Pasture-based Farming takes a broad and interdisciplinary view of the subject. The text is organized into two sections, the first addressing issues facing environmental quality, namely soil, water and air quality and socioeconomic impacts. The second section offers commentary on how the different pastoral sectors influence environmental issues. With highly tuned farm productive systems comes the risk of environmental impacts, and the purpose of this text is to highlight the areas with which these risks are associated and how best to mitigate them. While drawing attention to potential problems, chapter authors always remain conscious of the socio-economic needs of land users and the increasing world population and keep in mind that intense mitigation may be too restrictive on the farming system. This book takes an unbiased approach to improving management of grazed land and incorporates research from environmental science, agriculture, soil science and ecology.