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Author : Peter Ahn
Publisher :
ISBN 13 : 9780470209431
Total Pages : pages
Book Rating : 4.2/5 (94 download)
Download or read book Tropical Soils and Fertilizer Use written by Peter Ahn and published by . This book was released on 1992-01-01 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Peter M. Ahn
Publisher : Longman Publishing Group
ISBN 13 :
Total Pages : 280 pages
Book Rating : 4.:/5 (89 download)
Download or read book Tropical Soils and Fertiliser Use written by Peter M. Ahn and published by Longman Publishing Group. This book was released on 1993 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : H. R. von Uexkull
Publisher : Food & Agriculture Org.
ISBN 13 : 9789251023877
Total Pages : 74 pages
Book Rating : 4.0/5 (238 download)
Download or read book Efficient Fertilizer Use in Acid Upland Soils of the Humid Tropics written by H. R. von Uexkull and published by Food & Agriculture Org.. This book was released on 1986 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Rattan Lal
Publisher : CRC Press
ISBN 13 : 1482257858
Total Pages : 351 pages
Book Rating : 4.4/5 (822 download)
Download or read book Soil Phosphorus written by Rattan Lal and published by CRC Press. This book was released on 2016-09-19 with total page 351 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phosphorus is an essential plant nutrient, but global population growth has dramatically reduced the availability of phosphorus fertilizer resources. Despite this scarcity, there remain numerous problems associated with the excessive and inappropriate use of phosphorus leading to non-point source pollution and eutrophication of natural waters. Identifying appropriate systems for managing soil phosphorus and reducing the risks of eutrophication are needed to minimize the environmental risks. This book focuses on the availability and recycling of phosphorus; regulatory and policy issues of sustainable phosphorus use; and water quality management in agroecosystems pertaining to phosphorus. Sections are dedicated to global phosphorus reserves; cycling and pathways of phosphorus; phosphorus in agriculture; human dimensions and policy intervention; and research and development priorities. Phosphorus is a finite but crucial resource and is an essential element to all life. Sub-optimal availability and nutrient imbalance in the root zone can adversely impact plant growth, and the quality of food and feed grown on these soils. However, the proven reserves of phosphorus can hardly be adequate for a few centuries only. Yet, its misuse and mismanagement has caused severe problems of eutrophication of water and pollution of the environment. Thus, judicious management of soil phosphorus is essential. This volume is specifically devoted to availability and recycling of phosphorus, regulatory/policy issues of sustainable use of phosphorus, and management in agroecosystems in the context of maximizing the use efficiency and minimizing the environmental risks of water quality.
Author : Pedro A. Sanchez
Publisher : Cambridge University Press
ISBN 13 : 1107176050
Total Pages : 685 pages
Book Rating : 4.1/5 (71 download)
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.
Author : Anthony S. R. Juo
Publisher : Oxford University Press
ISBN 13 : 9780195353877
Total Pages : 296 pages
Book Rating : 4.3/5 (538 download)
Download or read book Tropical Soils written by Anthony S. R. Juo and published by Oxford University Press. This book was released on 2003-09-18 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agricultural ecology, or agroecology, deals in general with the structure and function of agroecosystems at different levels of resolution. In this text/reference, the authors describe in terms of agroecology the tropical environments of sub-Saharan Africa, Southeast Asia, and Latin and Central America, focusing on production and management systems unique to each region.
Author : F. S. C. P. Kalpagé
Publisher :
ISBN 13 :
Total Pages : 332 pages
Book Rating : 4.3/5 (91 download)
Download or read book Tropical Soils written by F. S. C. P. Kalpagé and published by . This book was released on 1974 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: The tropical environment; Factors affecting soil formation; Processes of soil formation; Classification of tropical soils; Profile features and fertility characteristics of the great soil groups; Physical properties; Nutrient supply: macro and secondary nutrients; Nutrient supply: micronutrients; Soil organic matter and soil organisms; Soil use in the the tropics; Soils under shiftingm cultivation; Soils under intensive upland arable cropping; Flooded rece soils; Plantation soils; Tropical grassland soils; Fertilizers in tropical soil fertility.
Author : Cyril Bako Yakubu
Publisher :
ISBN 13 :
Total Pages : 140 pages
Book Rating : 4.:/5 (125 download)
Download or read book Efficient Use of Nitrogen and Phosphorus Fertilizers on Tropical Soils written by Cyril Bako Yakubu and published by . This book was released on 1984 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Commonwealth Bureau of Soils
Publisher :
ISBN 13 :
Total Pages : 14 pages
Book Rating : 4.:/5 (974 download)
Download or read book Bibliography on Soil Analysis and Fertilizer Response in Tropical Soils (1967-1956) written by Commonwealth Bureau of Soils and published by . This book was released on 1967 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David K. Leonard
Publisher :
ISBN 13 :
Total Pages : 174 pages
Book Rating : 4.:/5 (327 download)
Download or read book Soils, Crops, and Fertilizer Use written by David K. Leonard and published by . This book was released on 1981 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agriculture extension work requires more than good intentions and rapport with farmers. The real challenge is usually establishing credibility in the agriculture skills area. Agriculture at the small farmer level in a developing country is a complex endeavor. Farmers have much they can teach you when it comes to land preparation, planting, harvesting, using tools, and other manual skills. Likewise, there are many yield boosting skills you can show them, especially in the areas of soil conservation, organic and chemical fertilizer use, and the safe and appropriate use of agricultural chemicals. This manual has been designed as an on-the-job reference for soil management and fertilizer use; hopefully, it will help along that sometimes bumpy road to credibility.
Author : James A. Silva
Publisher : College of Tropical Agricultural
ISBN 13 : 9781929325085
Total Pages : 158 pages
Book Rating : 4.3/5 (25 download)
Download or read book Plant Nutrient Management in Hawaii's Soils written by James A. Silva and published by College of Tropical Agricultural. This book was released on 2014-05-30 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today's approach to crop production considers not only the effects of fertilizer applications on crop yield and quality but also includes awareness of the potential of fertilizer nutrients to adversely affect the environment. Managing crop nutrients deliberately and carefully takes on special significance in Hawaii, where imported nutrient inputs are costly and the environment--particularly the underground aquifer and coastal waters--is vulnerable to pollution. This book contains a distillation of decades of CTAHR research on soils, fertilizers, and crop nutrient needs, written for the lay reader and intended to provide a solid base of knowledge for the serious agriculturist. While the text makes reference to Hawaii's crops and soil conditions, its basic information is transferrable to similar tropical and subtropical locations throughout the world.
Author : N. Ahmad
Publisher : Springer Science & Business Media
ISBN 13 : 9400917066
Total Pages : 430 pages
Book Rating : 4.4/5 (9 download)
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.
Author : N Ahmad
Publisher :
ISBN 13 : 9789400917071
Total Pages : 456 pages
Book Rating : 4.9/5 (17 download)
Download or read book Nitrogen Economy in Tropical Soils written by N Ahmad and published by . This book was released on 1996-10-31 with total page 456 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.
Author : National Research Council (U.S.). Committee on Tropical Soils
Publisher : National Academies
ISBN 13 :
Total Pages : 244 pages
Book Rating : 4.:/5 (1 download)
Download or read book Soils of the Humid Tropics written by National Research Council (U.S.). Committee on Tropical Soils and published by National Academies. This book was released on 1972 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research needs; Soil survey; Soil microvariability; Physical properties of soil; Soil nitrogen and organic matter; Soil phosphorus and sulfur; Soil potassium; Soil acidity and liming; Soil micronutrients; Fertilizers; Soil management systems; Soil testing and soil fertility evaluation services.
Author : Y.R. Dommergues
Publisher : Springer Science & Business Media
ISBN 13 : 9400975295
Total Pages : 329 pages
Book Rating : 4.4/5 (9 download)
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.
Author : Lauren P. Bomeisl
Publisher :
ISBN 13 :
Total Pages : 80 pages
Book Rating : 4.:/5 (113 download)
Download or read book Residual Soil Phosphorus in Tropical Oxisols written by Lauren P. Bomeisl and published by . This book was released on 2019 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phosphorus (P) is essential to life on Earth and often the limiting nutrient in agricultural systems. P fertilizer is thus an essential resource to maintain food security. In the last half century, agricultural intensification has led to an increase in P fertilizer consumption from 4.6 to 17.5 Tg of P/year to meet rising global food demand. Mineral P (i.e., phosphate rock) is a non-renewable resource in the context of the Anthropocene, and its price is vulnerable to global market fluctuations. Increased efficiency of P use on farms is considered the most effective strategy to conserve P. The soybean industry demands 9.7% of global P use, of which Brazil's soy industry consumes the most, accounting for 5.8% of the world's P2O5 use in 2014. This global source of soy production is challenged by the unique tendency of weathered tropical soils, such as Oxisols, to retain (i.e., fix) P in forms that are unavailable to crops. The accumulation of soil P due to years of P fertilization in excess of harvested P is referred to as "residual" or "legacy" P. Historical hotspots for crop production in the US and Europe have relied on residual soil P stocks to maintain yields despite reduced P inputs. Whether Brazil will be able to utilize the same strategy depends on the accessibility of residual soil P stocks when applied fertilizer P is reduced. Field research on this topic remains relatively scarce for cultivated Oxisols in tropical climates. I conducted a field trial at Tanguro Ranch in Mato Grosso, Brazil on a field that has been fertilized at standard high rates for 10 years to test whether residual soil P can be accessed by soy crops. Soy yield response differed significantly (p
Author : A. Young
Publisher : CUP Archive
ISBN 13 : 9780521210546
Total Pages : 502 pages
Book Rating : 4.2/5 (15 download)
Download or read book Tropical Soils and Soil Survey written by A. Young and published by CUP Archive. This book was released on 1976 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a book about tropical soils written from the point of view of the field soil scientist.
