Download or read book FAO Fertilizer Yearbook 1982 written by and published by . This book was released on 1983 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book FAO fertilizer yearbook written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book FAO Production Yearbook 1982 written by Food and Agriculture Organization and published by . This book was released on 1983 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annuaire FAO de la production written by and published by . This book was released on 1976 with total page 555 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Statesman s Year Book 1982 83 written by J. Paxton and published by Springer. This book was released on 2016-12-15 with total page 1718 pages. Available in PDF, EPUB and Kindle. Book excerpt: The classic reference work that provides annually updated information on the countries of the world.
Download or read book Fertilizer sulfur and food production written by Mohinder Mudahar and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fertilizer is a vital component of strategies for expanding foodproduction. The rapid growth in population and the widening food deficits inmany tropical countries ofAsia, Africa, and Latin America call attention to those aspects of fertilization that have been neglected but are expected to yield large economic payoffs in the future. Fertilizer sulfur falls into this category. In the past fertilizer sulfur received little attention from researchers and policymakers since sulfur deficiency was not considered a serious problem. It was not a problem because of low crop yields, extensive cropping, and the incidental supply of sulfur through rain, irrigation water, manures, and sulfurcontaining fertilizers. However, the situation has changed in the last three decades. Moder nagriculture based on high crop yields, intensive cropping, improved crop varieties, and greater use of sulfur-free fertilizers and environmental regula tions restricting sulfur emissions are creating large gaps between sulfur sup ply and sulfur requirements. Sulfur deficiencies are widespread and grow ing. Consequently, the full potential of a modern agricultural system in tropical countries is not being realized. This research effort results from the recognition of the seriousness of the sulfur problem and its adverse impact on food production as well as IFDC's dedication to the development and transfer of economically ef ficient fertilizer technology to tropical countries. This study represents a comprehensive analysis ofthe technical and economic linkages between fer tilizer sulfur and food production, and it provides guidelines for future directions in fertilizer sulfur research and public policy.
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.
Download or read book Organic Matter and Rice written by and published by Int. Rice Res. Inst.. This book was released on 1984 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biological Processes and Soil Fertility written by J. Tinsley and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: The success of shifting cultivation systems developed by subsistence farmers testifies to the resilience of the "natural" soil-plant ecosystems to recover from the offtake of nutrients in crops and loss of soil struc ture. By contrast, the development of intensive cropping systems requires large inputs especially of nitrogen, together with phosphorus, sulphur and other essential elements in order to maintain the nutrient levels needed for abundant crop yields. As Dr. Cooke ably pointed out in his introductory lecture, the dis coveries and experiments of the 19th century encouraged farmers in temperate zones to rely greatly on chemical fertilizers supplements. However, the work of Charles Da{win on soil mixing by earthworms and the discovery by Hellriegel and Wilfarth in 1886 that the nodules on legume roots contain colonies of symbiotic bacteria able to "capture" atmospheric nitrogen molecules to the benefit of the host plant heralded a growing realization of the importance of soil biota in fertility studies. Biological fixation of nitrogen has been the theme of many meetings and publi~ations hitherto but at this Conference, convened on the delightful campus of Reading University, attention was mainly focussed on other biological processes in soil fertility. These Proceedings record the dominant themes and include six keynote addresses delivered at plenary sessions and seven introductory lectures to paper reading sessions by invited individuals plus 22 of the proferred papers, in six sections as tabled in the contents list.
Download or read book FAO annuaire 2001 written by Food and Agriculture Organization of the United Nations and published by . This book was released on 2002 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: A compilation of statistical data relating to fertilizer products for countries and territories of the world. The yearbook includes data series on production, trade and consumption for the years 1989/90 to 2000/01 together with data on prices for the years 1991/92 to 2000/01.
Download or read book FAO Fertilizer Yearbook written by and published by . This book was released on 1968 with total page 1986 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book FAO Trade Yearbook 1982 written by Food and Agriculture Organization, Rome and published by . This book was released on 1983 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Anuario FAO de comercio 1982 written by and published by . This book was released on 1983 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book FAO Fertilizer Yearbook written by Rome FAO and published by . This book was released on 1987 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book FAO fertilizer yearbook 1980 written by Rome FAO and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book FAO fertilizer yearbook written by and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book FAO Fertilizer Yearbook Vol 39 written by Rome F. A. O. and published by . This book was released on 1990 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt:
