Download or read book Manganese in Soils and Plants written by R.D. Graham and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sixty years ago at the Waite Agricultural Research Institute, G. Samuel, a plant pathologist, and C. S. Piper, a chemist, published their conclusion that the cause of roadside take-all, a disease of oats, was manganese deficiency. This report, together with the concurrent and independent studies of W. M. Carne in Western Australia were the first records of manganese deficiency in Australia and came only six years after McHargue's paper which is generally accepted as the final proof of the essentiality of this element. There must have been a few doubts for some people at the time, however, as the CAB publication, 'The Minor Elements of the Soil' (1940) expressed the view that further evidence to this effect was provided by Samuel and Piper. Their historic contributions are recognised by the International Symposium on Manganese in Soils and Plants as it meets on the site of their early labours to celebrate the 60th anniversary. This year Australians also acknowledge 200 years of European settlement in this country and so the Symposium is both a Bicentennial and a diamond jubilee event which recognises the impact of trace elements on agricultural development in Australia. In a broader sense, a symposium such as this celebrates, as it reviews, the efforts of all who over the ages have contributed to our knowledge of manganese in soils and plants.

Download or read book The Mineral Composition of Crops with Particular Reference to the Soils in which They Were Grown written by Kenneth Crees Beeson and published by . This book was released on 1941 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: The nutritional value of such inorganic elements as calcium, phosphorus, iodine, copper, and iron has been demonstrated by many investigators, and it is generally recognized that quantitative variations of these elements in foods and feeds are important factors in human and animal health. These and other mineral elements, especially those occurring in trace amounts, are receiving greatly increased attention in both popular and scientific literature dealing with soils, fertilizers, plant growth and composition, food quality, and animal and human health and nutrition.

Download or read book Soil Colloids and Their Associations in Aggregates written by Marcel F. De Boodt and published by Springer Science & Business Media. This book was released on 2013-11-21 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt: S. Henin Versailles, France It was a pleasure for me to take part in the NATO Advanced Study Workshop for studies of 'Soil Colloids and their Associations in Soil Aggregates'. The meeting provided me with a welcome opportunity to renew acquaintances with respected colleagues in the various fields of Soil Science, to listen to their presentations, and be involved in discussions which were at the frontiers of the science which deals with the structures and the associations of the soil colloidal constituents. In my view the rapid advances in Soil Science, and the great benefits to agriculture from these, have their origins in the emerging understanding of the structures and the associations of the different soil colloids. It is clear that much research is still needed before the molecular details of the most important of the structures and of the interactions are fully understood. The associations between the soil colloids, and the manner in which they bind to or hold the other constituents of soils in aggregates is fundamental to soil fertility. and the Modem intensive agriculture leads to the degradation of soil structure subsequent loss through erosion of a resource that is vital for the production of food. This degradation is considered to result primarily from the biological oxidation of the indigenous soil organic matter, and from the failure to return to the soil sufficient organic residues to compensate for such losses.

Download or read book Proceedings written by International society of soil science, Rome and published by . This book was released on 1932 with total page 1074 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Experiment Station Record written by U.S. Office of Experiment Stations and published by . This book was released on 1932 with total page 1044 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Experiment Station Record written by United States. Office of Experiment Stations and published by . This book was released on 1932 with total page 1044 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Agriculture written by and published by . This book was released on 1964 with total page 1438 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Circular written by Texas Agricultural Experiment Station and published by . This book was released on 1923 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Circular written by Santiago de las Vegas (Cuba). Estación Central Agronómica and published by . This book was released on 1927 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Miscellaneous Publication written by and published by . This book was released on 1941 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Bulletin written by Virginia Agricultural Experiment Station and published by . This book was released on 1932 with total page 932 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Note written by and published by . This book was released on 1921 with total page 1066 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book List of Bulletins of the Agricultural Experiment Stations written by United States. Department of Agriculture. Library and published by . This book was released on 1927 with total page 770 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Journal of the American Society of Agronomy written by American Society of Agronomy and published by . This book was released on 1926 with total page 1216 pages. Available in PDF, EPUB and Kindle. Book excerpt: An international journal of agriculture and natural resource sciences.

Download or read book Biological Agricultural Index written by and published by . This book was released on 1925 with total page 1192 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Trace Elements in Soils and Plants written by Alina Kabata-Pendias and published by CRC Press. This book was released on 2000-11-08 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contemporary legislation respecting environmental protection and public health, at both national and international levels, are based on data that characterize chemical properties of environmental phenomena, especially those that reside in our food chain. Thus, environmental and food quality are now matters of major public concern and therefore a sy

Download or read book Proceedings of the International Society of Soil Science written by International Society of Soil Science and published by . This book was released on 1930 with total page 1376 pages. Available in PDF, EPUB and Kindle. Book excerpt: