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Author : A. S. R. Juo
Publisher :
ISBN 13 :
Total Pages : 7 pages
Book Rating : 4.:/5 (163 download)
Download or read book Phosphate Sorption Characteristics of Some Bench-mark Soils of West Africa written by A. S. R. Juo and published by . This book was released on 1977 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher : Bib. Orton IICA / CATIE
ISBN 13 :
Total Pages : 202 pages
Book Rating : 4./5 ( download)
Download or read book Final Report Project Aid-Sci 936-5442 Development of Appropriate Technology for Overcoming Different Mechanisms of P Retention in Central American Soils written by and published by Bib. Orton IICA / CATIE. This book was released on with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Henk Mutsaers
Publisher : Taylor & Francis
ISBN 13 : 1315518848
Total Pages : 362 pages
Book Rating : 4.3/5 (155 download)
Download or read book Soil and Soil Fertility Management Research in Sub-Saharan Africa written by Henk Mutsaers and published by Taylor & Francis. This book was released on 2017-03-27 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: Judicious soil fertility management is crucial for sustainable crop production and food security in sub-Saharan Africa (SSA). This book describes the various concepts and approaches underlying soil and soil fertility management research in SSA over the last fifty years. It provides examples of important innovations generated and assesses the position of research within the research-to-development continuum, including how innovations have been validated with the intended beneficiaries. Using the experience of the International Institute of Tropical Agriculture (IITA) as a case study, the authors analyse how processes, partnerships and other factors have affected research priorities, the delivery of outputs, and their uptake by farming communities in SSA. They evaluate both successes and failures of past investments in soil fertility research and important lessons learnt which provide crucial information for national and international scientists currently engaged in this research area. The book is organised in a number of chapters each covering a chronological period characterised by its primary research content and approaches and by the dominant research paradigms and delivery models.
Author : Uzo M. Mokwunye
Publisher : Springer Science & Business Media
ISBN 13 : 9400943989
Total Pages : 371 pages
Book Rating : 4.4/5 (9 download)
Download or read book Management of Nitrogen and Phosphorus Fertilizers in Sub-Saharan Africa written by Uzo M. Mokwunye and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 371 pages. Available in PDF, EPUB and Kindle. Book excerpt: Food security, one of the basic human rights, seems to be ever eluding the people of sub-Saharan Africa. With each occurrence of crop failure, agriculturalists around the world reawaken to the challenge of ensuring sta ble, adequate food production in the tropical African environments. The International Fertilizer Development Center (IFDC), with its mandate of alleviating food shortages through judicial use of fertilizers, formulated a program to study fertilizer use strategies for sub-Saharan Africa. With gener ous financial assistance from the International Fund for Agricultural Devel opment (IFAD), IFDC, in collaboration with the International Crop Re search Institute for the Semi-Arid Tropics (ICRISAT) and the International Institute for Tropical Agriculture (IIT A), initiated a research project aimed at assessing means to remedy soil nutrient deficiencies that constrain food production in the humid, subhumid, and semiarid tropics of Africa. The results of this project were summarized during a workshop held in Togo, March 25-28, 1985; the proceedings of that meetings are found in this vol ume. The project established collaboration with numerous national programs that were responsible for much of the data collection. The data presented in Chapters 6 and 9 include much of this information. We wish to acknowledge the contribution of the individual scientists, J.T. Ambe, F. Ganry, M. Gaoh, M. Issaka, J. Kiazolu, J. Kikafunde-Twine, K. Kpomblekou, F. Lompo, H.
Author : A. Uzo Mokwunye
Publisher : Springer Science & Business Media
ISBN 13 : 9401132240
Total Pages : 244 pages
Book Rating : 4.4/5 (11 download)
Download or read book Alleviating Soil Fertility Constraints to Increased Crop Production in West Africa written by A. Uzo Mokwunye and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tropical Africa escaped from the glaciers that covered the temperate parts of the world during the Ice Age. The legacy is that most of the parent materials of the soils of tropical Africa are old, highly weathered and devoid of bases and phosphate-bearing minerals. Traditional farming systems which were relatively stable and sustainable relied on long fallow periods after one to two years of cropping to maintain the productive capacity of the soils. In recent times and especially in densely populated areas, a sizeable class of 'landless' farmers have begun to cultivate marginal lands or to invade the 'forest reserves' thereby exacerbating the problems of land and environ mental degradation. of soil fertility that will facilitate the production of adequate quantities of the principle Maintaining a level staples has become a major challenge to agricultural scientists in tropical Africa. To increase the nutrient supplying power of soils requires the inputs of fertilizers. These can be organic or inorganic. The efficiency with which these externally supplied inputs can increase agricultural production and reduce soil and environmental deterioration is dependent on the ability of scientists to determine the right types and quantities of the products to apply to each soil, crop and cropping system as well as the ability of farmers to acquire requisite farm manage ment skills.
Author :
Publisher : IITA
ISBN 13 : 9789781312007
Total Pages : 596 pages
Book Rating : 4.3/5 (12 download)
Download or read book Maize revolution in West and Central Africa written by and published by IITA. This book was released on 2003 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher : Int. Rice Res. Inst.
ISBN 13 : 9711041219
Total Pages : 574 pages
Book Rating : 4.7/5 (11 download)
Download or read book An Overview of Upland Rice Research written by and published by Int. Rice Res. Inst.. This book was released on 1984 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : International Rice Research Institute
Publisher : Int. Rice Res. Inst.
ISBN 13 : 9711041391
Total Pages : 569 pages
Book Rating : 4.7/5 (11 download)
Download or read book Wetland Soils written by International Rice Research Institute and published by Int. Rice Res. Inst.. This book was released on 1985 with total page 569 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Workshop produced recommendations for future research and actions to make the goal of greater crop production from wetland soils a reality.
Author : Herbert W. Ohm
Publisher :
ISBN 13 :
Total Pages : 366 pages
Book Rating : 4.:/5 (89 download)
Download or read book Appropriate Technologies for Farmers in Semi-arid West Africa written by Herbert W. Ohm and published by . This book was released on 1985 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 572 pages
Book Rating : 4.:/5 (31 download)
Download or read book Fertilizer Abstracts written by and published by . This book was released on 1978 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Lynn M. Gourley
Publisher : CIAT
ISBN 13 : 8489206643
Total Pages : 340 pages
Book Rating : 4.4/5 (892 download)
Download or read book Sorghum for Acid Soils written by Lynn M. Gourley and published by CIAT. This book was released on 1987 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil in the tropics, classification and characteristics; phosphorus availability in the acid soils of tropical America; analysis methodologyfor tropical soils; strategies implied in the use and management of acid soils in Tropical America; a new methodology to select cultivars tolerant to aluminium and with high yield potential; calcium and root penetration in highly weathered soils; sorghum evaluation in the Llanos of Venezuela; potential role of grains sorghum in the agricultural systems of regions with acid soils in tropical latin america; effective screening techniques for tolerance to aluminium toxicity; tolerance to aluminium toxicity in upland rice for acid soils; breeding methodologyfor phosphorus efficiency and tolerance to aluminium and manganesetoxicities for beans (Phaseolus vulgaris L.); world sorghum germplasm collection and conservation; prospects for sorghum improvement for phosphorus efficiency; evaluation of mineral elements in sorghum grown onacid tropical soils; breeding aluminum-tolerant sorghums; finding and utilizing exotic al-tolerant sorghum germplasm.
Author : International Livestock Centre for Africa
Publisher : ILRI (aka ILCA and ILRAD)
ISBN 13 : 9789290530800
Total Pages : 596 pages
Book Rating : 4.5/5 (38 download)
Download or read book Potentials of Forage Legumes in Farming Systems of Sub-Saharan Africa written by International Livestock Centre for Africa and published by ILRI (aka ILCA and ILRAD). This book was released on 1986-01-01 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : A. S. R. Juo
Publisher : Oxford University Press, USA
ISBN 13 : 0195115988
Total Pages : 292 pages
Book Rating : 4.1/5 (951 download)
Download or read book Tropical Soils written by A. S. R. Juo and published by Oxford University Press, USA. This book was released on 2003 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1. Introduction. 2. Mineralogy. 3. Soil Chemistry. 4. Soil Physics. 5. Soil Biology and Microbiology. 6. Soil Fertility. 7. Soil Formation and Classification. 8. Major Soils of the Tropics: A Descriptive Classification Based on Clay Mineralogy. 9. Soil Management: An Overview. 10. Properties and Management of Kaolinitic Soils. 11. Properties and Management of Oxidic Soils. 12. Properties and Management of Smectitic Soils. 13. Properties and Management of Allophanic Soils. 14. Soils and Sustainable Agriculture.
Author : International Rice Research Institute
Publisher : Int. Rice Res. Inst.
ISBN 13 : 9711041502
Total Pages : 580 pages
Book Rating : 4.7/5 (11 download)
Download or read book Progress in Upland Rice Research written by International Rice Research Institute and published by Int. Rice Res. Inst.. This book was released on 1986 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: Characterization and classification of upland rice growing environments;integrated upland rice farming systems;biological stresses with special emphasis on blast;preproduction testing and production programs.
Author : Mohammad Saghir Khan
Publisher : Springer Science & Business Media
ISBN 13 : 364201979X
Total Pages : 371 pages
Book Rating : 4.6/5 (42 download)
Download or read book Microbial Strategies for Crop Improvement written by Mohammad Saghir Khan and published by Springer Science & Business Media. This book was released on 2009-08-25 with total page 371 pages. Available in PDF, EPUB and Kindle. Book excerpt: With an ever-increasing human population, the demand placed upon the agriculture sector to supply more food is one of the greatest challenges for the agrarian community. In order to meet this challenge, environmentally unfriendly agroch- icals have played a key role in the green revolution and are even today commonly recommended to circumvent nutrient de?ciencies of the soils. The use of ag- chemicals is, though, a major factor for improvement of plant production; it causes a profound deteriorating effect on soil health (soil fertility) and in turn negatively affects the productivity and sustainability of crops. Concern over disturbance to the microbial diversity and consequently soil fertility (as these microbes are involved in biogeochemical processes), as well as economic constraints, have prompted fun- mental and applied research to look for new agro-biotechnologies that can ensure competitive yields by providing suf?ciently not only essential nutrients to the plants but also help to protect the health of soils by mitigating the toxic effects of certain pollutants. In this regard, the role of naturally abundant yet functionally fully unexplored microorganisms such as biofertilizers assume a special signi?cance in the context of supplementing plant nutrients, cost and environmental impact under both conventional practices and derelict environments. Therefore, current devel- ments in sustainability involve a rational exploitation of soil microbial communities and the use of inexpensive, though less bio-available, sources of plant nutrients, which may be made available to plants by microbially-mediated processes.
Author : International Council of Scientific Unions. Scientific Committee on Problems of the Environment
Publisher : Int. Rice Res. Inst.
ISBN 13 : 9712200027
Total Pages : 495 pages
Book Rating : 4.7/5 (122 download)
Download or read book Phosphorus Requirements for Sustainable Agriculture in Asia and Oceania written by International Council of Scientific Unions. Scientific Committee on Problems of the Environment and published by Int. Rice Res. Inst.. This book was released on 1990 with total page 495 pages. Available in PDF, EPUB and Kindle. Book excerpt: This symposium organised by the International Rice Institute concentrate on the P requirement to optimize food and fiber production in the main rice-growing areas of the world using Asia and Oceanic data in a regional case study. Research gaps and needs are discussed
Author : D. J. Greenland
Publisher : Oxford University Press, USA
ISBN 13 :
Total Pages : 490 pages
Book Rating : 4.3/5 (91 download)
Download or read book Characterization of Soils in Relation to Their Classification and Management for Crop Production written by D. J. Greenland and published by Oxford University Press, USA. This book was released on 1981 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soils and crop production in the lowland humid tropics; Representative toposenquences of soils in southern Nigeria and their pedology; Mineralogy; Chemical characteristics; Degree of weathering and surface properties of clays; Phosphorus sorption and release; Physical properties; Micronutrient status; Microbiological factors; Management of the soils for continuous production: controlling erosion and maintaining physical condition; Management of the soils for continuous productions: controlling nutrient status; Soil management in the Oxisol savannahs and Ultisol jungles of tropical South America; Soil fertility-capacibility assessment for use in the humid tropics; Climates of the tropics in relation to crop productivity; Farming systems and crops of the humid tropics in relation to soil utilization; Appendix 1: profile locations, descriptions, and analyses; Appendix 2: farming systems and crops of the humid tropics of West Africa.
