Download or read book Effect of Organic Matter Decomposition on the Solubility and Fixation of Phosphorus in Alkaline Soils written by Harold Francis Rhoades and published by . This book was released on 1939 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Role of Organic Matter in Modern Agriculture written by Y. Chen and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of organic residues as a means of maintaining and increasing soil fertility is of long-standing. This tradition has been somewhat neglected since the introduc tion of mineral fertilizers at low cost. More and more farmers and scientists are now showing renewed interest in the proper and effective use of org~tnic residues, composts and other recycled organic additives. The role and function of organic amendments in modern agricultural systems have become topics of major interest in the scientific and agricultural communities. Research work on residue disposal has provided new concepts on the interaction between organic components and soils as well as new handling technologies (e. g. pelletizing of organic residues). The trend to conserve energy has led scientists to study the minimal tillage system, to find ways of replacing conventional inorganic fertilizers with natural organic prod ucts or microbial preparations, and to develop new composting methods. The drive to achieve higher yields in commercial greenhouse farming has led to a search for optimum substrates as growth media and for improved management techniques. This has led to the introduction of organic substitutes for peat, nota bly those originating from agricultural wastes. Another important aspect is the current interest in organic farming, where use of synthetic chemicals is avoided or prohibited. An increasing percentage of the population in highly developed countries is willing to pay premium prices for food produced on soils where inorganic fertilizers and other agricultural chemicals have not been used.

Download or read book Experiment Station Record written by United States. Office of Experiment Stations and published by . This book was released on 1939 with total page 2162 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 1937 with total page 1068 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cycles of Soils written by F. J. Stevenson and published by Wiley-Interscience. This book was released on 1986-01-17 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: The carbon cycle. Carbon balance of the soil and role of organic matter in soil fertility. Environmental aspects of the soil carbon cycle. The nitrogen cycle in soil: global and ecological aspects. The international cycle of nitrogen in soil. Impact of nitrogen on health and the environment. The phosporus cycle. The sulfur cycle. The micronutrient cycle.

Download or read book Effect of Soil Applications of Insecticides on the Growth and Yield of Vegetable Crops written by M. W. Stone and published by . This book was released on 1953 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Review of Phosphate Fertilizer Investigations in 15 Western States Through 1949 written by Howard Boyd Peterson and published by . This book was released on 1953 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Circular written by and published by . This book was released on 1954 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Estimation of Available Phosphorus in Soils by Extraction with Sodium Bicarbonate written by Sterling Robertson Olsen and published by . This book was released on 1954 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Summary of Phosphorus Research in the United States Relating to Soils and Fertilizers written by National Phosphorus Research Work Group and published by . This book was released on 1950 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Research Bulletin written by and published by . This book was released on 1940 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Soil and Water Chemistry written by Michael E. Essington and published by CRC Press. This book was released on 2015-04-24 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of a bestseller, Soil and Water Chemistry: An Integrative Approach maintains the balanced perspective that made the first edition a hugely popular textbook. The second edition includes new figures and tables, new chapters, and expanded exercises in each chapter. It covers topics including soil chemical environment, soil minerals,

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 Miscellaneous Publication written by and published by . This book was released on 1941 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Chemical Processes in Soils written by M. A. Tabatabai and published by . This book was released on 2005 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Phosphorus and Its Availability as Influenced by Organic Matter written by Philip John Westgate and published by . This book was released on 1940 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: