Effectiveness of Phosphate Rocks in Colombian Soils as Measured by Crop Response and Soil Phosphorus Levels PDF Download
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Author: Lawrence Leroy Hammond
Publisher:
ISBN:
Category : Phosphates
Languages : en
Pages : 422
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Book Description
Author: Lawrence Leroy Hammond
Publisher:
ISBN:
Category : Phosphates
Languages : en
Pages : 422
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Book Description
Author:
Publisher:
ISBN:
Category : Fertilizers
Languages : en
Pages : 580
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Book Description
Author: Food and Agriculture Organization of the United Nations. Land and Water Development Division
Publisher: Fao
ISBN:
Category : Business & Economics
Languages : en
Pages : 186
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Book Description
Extensive research on the agronomic potential and actual effectiveness of phosphate rocks (PRs) as sources of phosphorus has been carried out in Africa, Asia, Latin America and elsewhere. This publication brings together a wide range of available information on key issues regarding the use of PRs in agriculture, including world deposits; characteristics of sources; evaluation methodologies for direct application of PR (DAPR); analysis of biophysical and farming factors; development and use of decision-support systems for DAPR; soil P testing for PR application; available technologies for enhancing the agronomic effectiveness of indigenous PR sources; environmental issues; legislation guidelines; and future research priorities.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 152
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Author: A. E. Johnston
Publisher: Oxford University Press, USA
ISBN:
Category : Business & Economics
Languages : en
Pages : 422
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Book Description
During the past 30 years, crop yields, particularly of rice, have been greatly increased in many Asian countries by advances in plant breeding and by the application of nitrogenous and phosphatic fertilizers. This has become known as the "Green Revolution", which has been a major factor underpinning the rapid growth of Asian economies, providing a cheap, indigenous food supply. However, while human populations continue to increase, in many cases yields are no longer being sustained, due to a reduction in soil quality. Thus, food security in Asia has again become a source of concern. This book is the result of an international conference held in Bali in December 1996, initiated by The World Phosphate Institute (IMPHOS) to discuss the action which must be taken to reverse soil degradation and improve nutrient levels. It includes papers and working group reports on nutrient management and balance, the potential of different phosphate sources, rock phosphate efficiency in acid upland soils, current usage and future requirements for fertilizers, sustainability and the environment, and policy and pricing. Finally, there is a summary and conference resolution. Contributors to the book come from Europe, USA, Australia and many Asian countries. It is essential reading for soil scientists and agronomists concerned with agriculture in Asia and will also be of interest to environmentalists, ecologists and economists concerned with sustainable natural resource management.
Author:
Publisher:
ISBN:
Category : Cassava
Languages : en
Pages : 948
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Book Description
Author: Julio Henao
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 92
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Book Description
Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 1080
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Book Description
Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 1086
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Book Description
Vols. for 1973- include the following subject areas: Biological sciences, Agriculture, Chemistry, Environmental sciences, Health sciences, Engineering, Mathematics and statistics, Earth sciences, Physics, Education, Psychology, Sociology, Anthropology, History, Law & political science, Business & economics, Geography & regional planning, Language & literature, Fine arts, Library & information science, Mass communications, Music, Philosophy and Religion.
Author: Centro Internacional de Agricultura Tropical
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 1000
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Book Description
