Download or read book Sulfate Absorption by Some Soils of the Tropics written by Walter Cuoto and published by . This book was released on 1976 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sulfur in the Tropics written by G. Blair and published by . This book was released on 1979 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soils of the tropics generally have low levels of organic S, and often adsorbed S is the major reserve of this element. The addition of lime of phosphate to soils decreases sulfate adsorption and may significantly reduce their S status. Responses to sulfur are widespread in the tropics and have been recorded in 40 tropical countries with 23 different crops. Suggested reasons for the widespread nature of the deficiencies are presented. From published information, no association could be found between S deficiency and soil or climatic factors that would be useful for predicting areas likely deficiency. The major problem encountered in examining published data on soil and tissue tests was that of chemical methodology. While soil and tissue testes for sulfur have been used extensively in temperate areas and some tropical crops, care is needed in deriving acceptables criteria for diagnostic purposes, and a suggested approach to this problem is presented.
Download or read book Properties and Management of Soils in the Tropics written by Pedro A. Sanchez and published by . This book was released on 1976 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: The tropical environment. Soils of the tropics. Soil physical properties. Clay mineralogy and Ion Exchange Processes. Soil organic matter. Nitrogen. Soil acidity and liming. Phosphorus, silicon, and sulfur. Soil fertility evaluation. Soil management in shifting cultivation areas. Soil management in rice cultivation systems. Soil management in multiple cropping Systems. Soil Management for tropical pasture production.
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 Fertilizer Abstracts written by and published by . This book was released on 1969 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A I D Research and Development Abstracts written by and published by . This book was released on 1976 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A I D Research and Development Abstracts written by United States. Agency for International Development and published by . This book was released on 1976 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microbiology of Tropical Soils and Plant Productivity written by Y.R. Dommergues and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is an established fact that we must continually increase and improve agricultural production if we are to meet even the minimum requirements of a growing popu lation for food, shelter, and fuel. In recent years, the introduction of new plant varieties and the extensive use of fertilizers have effectively increased crop yields, but intensifying agricultural methods has often led to depleting soil fertility. Two examples of the harmful consequences of intensive farming practices are the loss of up to 2.5 cm of topsoil every 15 years in the United States through erosion and the alarming rise in environmental pollution through widespread use of pesticides. Countless other processes affecting the activity of soil micro flora and the inter actions between microorganisms and plants may pose an equal danger to soil equilibrium, but their potential hazards are often overlooked because of an insufficient understanding of soil microbiology on the part of scientists. In the first published study of its kind, the authors of this book have attempted to address major aspects of the microbial activity of soil in the tropics. Tropical conditions serve as an ideal context for a discussion of soil microbiology, since biological processes in the soil are particularly active in tropical environments in comparison to other settings and in relation to physical and chemical processes.
Download or read book Tropical Ecosystems Structure Functions and Challenges in the Face of Global Change written by Satish Chandra Garkoti and published by Springer Nature. This book was released on 2019-09-24 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book brings together research topics having a broad focus on human and climate change impacts on the terrestrial ecosystems in the tropics in general and more specifically from the most significant and vulnerable Himalayan ecosystem. A total of 16 contributions included in the book cover a diverse range of global change themes such as the impacts of changing temperature and precipitation on soil ecosystems, forest degradation, extent and impacts of invasive species, plant responses to pollution, climate change impacts on biodiversity and tree phenology, environmental changes associated with land use, importance of traditional knowledge in climate change adaptation, timberline ecosystems, and role of integrated landscape modeling for sustainable management of natural resources. The book is a collective endeavour of an international multidisciplinary group of scientists focused on improving our understanding of the impacts of global change on the structure and functioning of tropical ecosystems and addressing the challenges of their future sustainable management. We hope that the book will help researchers working in the areas of ecology and environmental science to update their knowledge. We also expect that natural resource managers and policy planners will find explanations for some of their observations and hypotheses on multiple global change factors impacting tropical ecosystems and especially Himalayan ecosystems.
Download or read book Nitrogen Economy in Tropical Soils written by N. Ahmad and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen Economy in Tropical Soils presents an authoritative and comprehensive state-of-the-art review on soil/plant nitrogen inter-relationships, with special reference to tropical soils and crops in aerobic and anaerobic environments. Use of isotopically labelled nitrogen in experimentation, especially in tropical environments, and recently developed analytical techniques for soil and plant materials are presented. An important aspect is the emphasis placed on the impact of the tropical environment on nitrogen transformations in the soil environment. This book should be an excellent source of information for senior undergraduate and graduate students with interest in soil/plant nitrogen inter-relationships, and for all levels of research workers in these fields.
Download or read book New Zealand Journal of Agricultural Research written by and published by . This book was released on 1979-02 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tropical Agriculturist and Magazine of the Ceylon Agricultural Society written by and published by . This book was released on 1925 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tropical Soils written by Edward Carl Julius Mohr and published by . This book was released on 1973 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamentals of climate, rocks and minerals, weathering, and organic matter transformations; Rocks and rock minerals. An introductory chapter on petrography; Rock weathering; Factors governing the formation and decomposition of organic matter; Oxisols; Lateritic soils, podzolic soils and podzols (oxisols, ultisols, alfisols and spodosols); Vertisols; Paddy soils and acid sulphate soils; Andosols; Experimental and physico-chemical study of the soil forming processes; Desilication; Plinthization (reduction-oxidation); Complex formation, cheluviation and chilluviation; Clay migration (argeluviation) and accumulation (argilluviation); The behaviour of titania.
Download or read book Forests And Forest Plants Volume II written by John N. Owens and published by EOLSS Publications. This book was released on 2009-02-24 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forests and Forest Plants is a component of Encyclopedia of Food and Agricultural Sciences, Engineering and Technology Resources in the global Encyclopedia of Life Support Systems (EOLSS), which is an integrated compendium of twenty one Encyclopedias. Forests are an essential part of Earth's life support systems. Forest resources are essential for humankind. They provide both vital goods and services. They provide food, fuel, shelter, soil and water protection, and filter the air we breathe. This publication on Forest and Forest Plants provides the user with such information as to create an awareness of the value of our forestlands and the products and environmental services they provide. The three volumes on Forests and Forest Plants are organized starting with first the necessity of : the World's Forest Resources – including classification and distribution of forest, urban forestry and agroforestry; Important Tree Species including trees in reclamation and arid zone forestry; Forests and Forest Products including wood and non word products; the Role of Forests in the Biosphere – preserving biological diversity, functions in the hydrological cycle, etc.; and Conservation and Breeding of Forest Trees – what is being done to improve our forest resources - silviculture, tree nurseries, and forest protection. The theme Forest and Forest Plants has led to the conclusion that there are substantial difficulties in matching environmental concerns and sustainability with an ever-increasing world population. Thus there is a tension between maximizing for food, wood and production on the one hand and implementing sustainable development and environmental protection on the other. These three volumes are aimed at the following five major target audiences: University and College Students Educators, Professional Practitioners, Research Personnel and Policy Analysts, Managers, and Decision Makers, NGOs and GOs.
Download or read book Bibliography of Soils of the Tropics Tropics in general and islands of Pacific and Indian Ocean written by Arnold Clifford Orvedal and published by . This book was released on 1975 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of the Soils of the Tropics Vol 4 written by Arnold Clifford Orvedal and published by . This book was released on 1980 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mineral nutrition of tropical plants written by Renato de Mello Prado and published by Springer Nature. This book was released on 2021-07-12 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook aims to describe the role of minerals in plant life cycle; how these nutrients are absorbed, distributed, stored; what functions each mineral plays and the disorders that their excess or absence may cause. From an agronomic perspective, such knowledge is key to boost crop production and improve its quality, and it also helps understand how to better manage fertilizers and prevent environmental issues. The book has focus on tropical agriculture and its specific demands, providing examples of major crops (such as sugarcane, soybeans, coffee etc), silviculture and pasture species.
