Fertilit Et Syst Mes De Production
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Fertility Of Soils
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Author : Christian J.M.G. Pieri
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Fertility Of Soils written by Christian J.M.G. Pieri and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Can a continuous growth of agriculture be achieved in the sub-Sahara region without inducing irreversible damage to the ecosystem? Until now, doubts have been expressed as to the actual capacity of the soils to sustain a desirable increase of production which can match the requirements of a fast-growing population. Thirty years of investigation and a renewed comprehensive interpretation of research data on soil fertility show that a sustainable agriculture growth could be a practical possibility in a savannah region.
Soil Fertility Management In Sub Saharan Africa
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Author : W. Graeme Donovan
language : en
Publisher: World Bank Publications
Release Date : 1998-01-01
Soil Fertility Management In Sub Saharan Africa written by W. Graeme Donovan and has been published by World Bank Publications this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998-01-01 with Technology & Engineering categories.
World Bank Technical Paper No. 408. This report is a critical review of the technical, economic, and institutional constraints on improving soil fertility in Sub-Saharan Africa, and the actions recommended to address them. Action plans prepared for Ghana, Kenya, Malawi, and Mali examine the demand for and supply of mineral fertilizers, the exploitation of local mineral resources, the prevention of soil erosion and increasing soil-water retention, and soil fertility management using organic technologies and management practices.
Gestion De La Fertilit Des Sols Dans Les Syst Mes D Exploitation D Afrique De L Ouest
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Author : Geneviève Renard
language : en
Publisher:
Release Date : 1998
Gestion De La Fertilit Des Sols Dans Les Syst Mes D Exploitation D Afrique De L Ouest written by Geneviève Renard and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Soil degradation categories.
Dynamics And Diversity
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Author : Ian Scoones
language : en
Publisher: Routledge
Release Date : 2010-09-23
Dynamics And Diversity written by Ian Scoones and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-09-23 with Nature categories.
Soils are critical to agriculture and, in turn, to food supply and livelihoods. Sustainable management of soils is crucial for a large proportion of the population of Africa. Contrary to many claims, soil fertility is improved and managed successfully by small-scale farmers there. Careful studies from widely different areas reveal how closely bound up soil management is with complex social, cultural and ecological factors - requiring a far more subtly tuned approach to development policy and practice. This work is a study of how the context of livelihood systems has to inform development policy and practice.
Agrindex
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Author :
language : en
Publisher:
Release Date : 1995
Agrindex written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Agriculture categories.
Fertility Control
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Author : Ursula-F. Habenicht
language : en
Publisher: Springer Science & Business Media
Release Date : 2010-09-14
Fertility Control written by Ursula-F. Habenicht and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-09-14 with Medical categories.
The world’s population is growing at an unsustainable rate. From a baseline ?gure of one billion in 1800, global population is predicted to exceed nine billion by 2050 and 87. 8% of this growth will be localized in less developed countries. Such uneven population growth will yield a harvest of poverty, malnutrition, disease and en- ronmental degradation that will affect us all. Amongst the complex mixture of political, social, cultural and technological changes needed to address this issue, the development of improved methods of fertility regulation will be critical. The inadequacy of current contraceptive technologies is indicated by recent data s- gesting that the contraceptive needs of over 120 million couples go unmet every year. As a direct consequence of this de?cit 38% of pregnancies are unplanned and more than 50% end in an abortion, generating a total of 46 million abortions per annum particularly among teenagers. If safe, effective contraceptives were ava- able to every couple experiencing an unmet family planning need, 1. 5 million lives would be saved each year (UNFPA 2003). Progress in contraceptive technology should not only generate more effective methods of regulating fertility, but should also provide a range of methods to meet the changing needs of the world’s population. Contraceptive practice was revo- tionized in 1960 in the US and 1961 in Europe by the introduction of the oral contraceptive pill by Gregory Pincus, MC Chang and colleagues, based on fun- mental hormone research conducted in Germany.
Indigenous Knowledge
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Author : Paul Sillitoe
language : en
Publisher: CABI
Release Date : 2017-11-07
Indigenous Knowledge written by Paul Sillitoe and has been published by CABI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-11-07 with Technology & Engineering categories.
Indigenous Knowledge (IK) reviews cutting-edge research and links theory with practice to further our understanding of this important approach's contribution to natural resource management. It addresses IK's potential in solving issues such as coping with change, ensuring global food supply for a growing population, reversing environmental degradation and promoting sustainable practices. It is increasingly recognised that IK, which has featured centrally in resource management for millennia, should play a significant part in today's programmes that seek to increase land productivity and food security while ensuring environmental conservation. An invaluable resource for researchers and postgraduate students in environmental science and natural resources management, this book is also an informative read for development practitioners and undergraduates in agriculture, forestry, geography, anthropology and environmental studies.
Land Use And Soil Resources
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Author : Ademola K. Braimoh
language : en
Publisher: Springer Science & Business Media
Release Date : 2008-02-02
Land Use And Soil Resources written by Ademola K. Braimoh and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-02-02 with Science categories.
Poor land management has degraded vast amounts of land, reduced our ability to produce enough food, and is a major threat to rural livelihoods in many developing countries. This book provides a thorough analysis of the multifaceted impacts of land use on soils. Abundantly illustrated with full-color images, it brings together renowned academics and policy experts to analyze the patterns, driving factors and proximate causes, and the socioeconomic impacts of soil degradation.
Soil And Environmental Science Dictionary
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Author : E.G. Gregorich
language : en
Publisher: CRC Press
Release Date : 2001-06-22
Soil And Environmental Science Dictionary written by E.G. Gregorich and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001-06-22 with Science categories.
The lingo of soil science is a language unto itself. Soil and Environmental Science Dictionary is a glossary of terms used in soil and environmental science, including terms from related disciplines. Designed for teachers, students, researchers and others interested or involved in environmental sciences related to soils, this compilation includes a
Climate Change And Its Impact On Fertility
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Author : Wani, Khursheed Ahmad
language : en
Publisher: IGI Global
Release Date : 2021-01-22
Climate Change And Its Impact On Fertility written by Wani, Khursheed Ahmad and has been published by IGI Global this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-01-22 with Medical categories.
Climate change is the biggest threat to the fertility of mammals across the globe through its potential effects on heat stress, nutrition security, extreme weather events, vulnerable shelter, and population migration. Climatic variables, such as temperature and humidity, are common environmental stressors as well as nutritional stress, which reduces fertility. Besides climate and nutritional stressors, another major factor responsible for reduced fertility discovered within the past decade is the exposure to potential hazardous substances such as chemical, radiation, physical, biological, and occupational hazards. This exposure includes anything from heavy metals and gases to pathogens and toxins and any substance that interferes with natural biological functions of the exposed workers, pregnant and breast-feeding workers, and young working population. There also must be research focused on developmental hazards that alter the structure and function of the developing embryo as well. The different climatic factors in the era of climate change need to be explored to discuss the impacts on fertility. Climate Change and Its Impact on Fertility highlights the issues and concerns that address the latest impact of climate change and mitigation strategies for enhancing early embryo survival and uterine potential. This book covers the effects of climate change on both the biological parents and the embryo by discussing the negative impacts, providing an overview of the variety of climate changes currently affecting fertility, and exploring possible solutions. This book is ideally intended for medical scientists and doctors, reproductive biologists, experimental toxicologists, mammalian cell biologists, clinicians, embryologists, health and safety agencies/regulatory authorities, public health officials, and policymakers along with practitioners, stakeholders, researchers, academicians, and students interested in climate change and its link to embryo growth, developmental risk, implantation failure, and fertility.