Download or read book Chemistry and Availability of Potassium Silicates in Soils written by Maria C. Sadusky and published by . This book was released on 1987 with total page 122 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 The Chemistry of Soils and Fertilizers written by Harry Snyder and published by . This book was released on 1899 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Potassium in Agriculture written by Robert D. Munson and published by . This book was released on 1985 with total page 1223 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies on the Determination of Potassium and Availability of this Element in Silicates and Soils written by Chien Peng and published by . This book was released on 1930 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Chemistry and its Applications written by Malcolm Cresser and published by Cambridge University Press. This book was released on 1993-05-06 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: The central role of soil chemistry in the ecosystem and other disciplines is becoming increasingly important. For example the effects of the increased levels of atmospheric carbon dioxide, and accelerated use of pesticides, on soil fertility has been a focus of much high-level debate. This text begins by defining the relationship between soil chemistry and other fields such as plant science and pollution science. A detailed description of the components of soils follows, including inorganic, mineral and organic matter. The book addresses cogent issues such as soil fertility and soil pollution. In a concluding chapter, a review of future analytic advances in the study of soil chemistry is given, emphasising the importance of the soil chemist in equitable and sustainable land use and agricultural policy. The book is an ideal starting point for the student undertaking undergraduate study in the environmental and soil sciences.
Download or read book Chemistry of the Soil written by Firman Edward Bear and published by . This book was released on 1964 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Components written by J. E. Gieseking and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 683 pages. Available in PDF, EPUB and Kindle. Book excerpt: The major components of most soils are inorganic. These constituents are derived from the weathering of rocks and minerals or from subsequent reaetions and interactions of the weathering products. During the weathering and interactions of weathering products, in organic soil colloids are formed. Large amounts of inorganic colloids are essential in soils if they are to support luxurious plant growth. The colloids adsorb water and nutrient element s that might be lost from the soil &ystem and they release these as plants need them. They also adsorb and buffer the soil system against large excesses of soluble toxic substances that might otherwise exist as free moieties in soils. Soil and plant root interactions occur across two interfaces. One is the interface between plant roots and the liquid phase and the other is the interface between the soil particles and the liquid phase. Reaetions across the interface between colloid crystals and the soilliquid phase may also suppress the availability of nutrient elements to plants. The effectiveness of these interfaciaI reaetions in supporting optimum plant growth ultimately depends on the arrangements of ions in the surfaces and subsurfaces of the mineraI crystals. For this reason much of this volume is devoted to the arrangement of ions in crystalline mineraI particles commonly occuring in soils and the properties that these particles contribute to soiI systems.
Download or read book Silicon in Agriculture written by L.E. Datnoff and published by Elsevier. This book was released on 2001-04-11 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presenting the first book to focus on the importance of silicon for plant health and soil productivity and on our current understanding of this element as it relates to agriculture.Long considered by plant physiologists as a non-essential element, or plant nutrient, silicon was the center of attention at the first international conference on Silicon in Agriculture, held in Florida in 1999. Ninety scientists, growers, and producers of silicon fertilizer from 19 countries pondered a paradox in plant biology and crop science. They considered the element Si, second only to oxygen in quantity in soils, and absorbed by many plants in amounts roughly equivalent to those of such nutrients as sulfur or magnesium. Some species, including such staples as rice, may contain this element in amounts as great as or even greater than any other inorganic constituent. Compilations of the mineral composition of plants, however, and much of the plant physiological literature largely ignore this element. The participants in Silicon in Agriculture explored that extraordinary discrepancy between the silicon content of plants and that of the plant research enterprise. The participants, all of whom are active in agricultural science, with an emphasis on crop production, presented, and were presented with, a wealth of evidence that silicon plays a multitude of functions in the real world of plant life. Many soils in the humid tropics are low in plant available silicon, and the same condition holds in warm to hot humid areas elsewhere. Field experience, and experimentation even with nutrient solutions, reveals a multitude of functions of silicon in plant life. Resistance to disease is one, toleration of toxic metals such as aluminum, another. Silicon applications often minimize lodging of cereals (leaning over or even becoming prostrate), and often cause leaves to assume orientations more favorable for light interception. For some crops, rice and sugarcane in particular, spectacular yield responses to silicon application have been obtained. More recently, other crop species including orchids, daisies and yucca were reported to respond to silicon accumulation and plant growth/disease control. The culture solutions used for the hydroponic production of high-priced crops such as cucumbers and roses in many areas (The Netherlands for example) routinely included silicon, mainly for disease control. The biochemistry of silicon in plant cell walls, where most of it is located, is coming increasingly under scrutiny; the element may act as a crosslinking element between carbohydrate polymers. There is an increased conviction among scientists that the time is at hand to stop treating silicon as a plant biological nonentity. The element exists, and it matters.
Download or read book Chemical Characteristics of Soils of Known Corrosiveness to Meatls written by United States. Bureau of Chemistry and Soils. Soil Chemistry and Physics Research Division and published by . This book was released on 1937 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improving Potassium Recommendations for Agricultural Crops written by T. Scott Murrell and published by Springer. This book was released on 2022 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book highlights concepts discussed at two international conferences that brought together world-renowned scientists to advance the science of potassium (K) recommendations for crops. There was general agreement that the potassium recommendations currently in general use are oversimplified, outdated, and jeopardize soil, plant, and human health. Accordingly, this book puts forward a significantly expanded K cycle that more accurately depicts K inputs, losses and transformations in soils. This new cycle serves as both the conceptual basis for the scientific discussions in this book and a framework upon which to build future improvements. Previously used approaches are critically reviewed and assessed, not only for their relevance to future enhancements, but also for their use as metrics of sustainability. An initial effort is made to link K nutrition in crops and K nutrition in humans. The book offers an invaluable asset for graduate students, educators, industry scientists, data scientists, and advanced agronomists.
Download or read book Transport Fate of Chemicals in Soils written by Prahlad Maurya and published by Scitus Academics LLC. This book was released on 2015-03 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The weathering of the parent material by water determines, to a large extent, the chemical composition of the soil which has ultimately been produced. Some chemicals are leached into the lower soil layers where they accumulate. Other chemicals, more insoluble, are left in the upper layers of the soil. The most rapid removed chemicals are chlorides and sulphates, followed by calcium, sodium, magnesium and potassium. The silicates and oxides of iron and aluminium decompose very slowly and are rarely leached. When some of these products come into contact with the air in the soil, chemical reactions occur, such as oxidation in particular, which results in the formation of chemicals either more soluble or more fragile than the original ones. This results in an acceleration of the weathering processes, increased leaching* of chemicals, and further changes in the soil chemical composition. A freshwater acid sulphate soil may develop when the waterlogged soil containing iron sulphurs (pyrites) is exposed to the air, for example, when constructing ponds.
Download or read book The mechanism of potassium fixation in soils and the availability of written by Leo Kolodny and published by . This book was released on 1938 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies Comparing the Potassium Chemistry and Clay Content of Some Michigan Indiana and Ohio Soils written by James Barrett Sallee and published by . This book was released on 1998 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soils and Fertilizers written by Harry Snyder and published by . This book was released on 1908 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Interfacial Chemistry of Rocks and Soils written by Noemi M. Nagy and published by CRC Press. This book was released on 2009-12-23 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: Knowledge of the basic interactions that take place between geological materials and different substances is the first step in understanding the effects of adsorption and other interfacial processes on the quality of rocks and soils, and on driving these processes towards a beneficial or neutral result. Interfacial Chemistry of Rocks and Soils exam
Download or read book The Physical Chemistry and Mineralogy of Soils written by Charles Edmund Marshall and published by . This book was released on 1964 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: V. 1 - Soil materials - Physical chemistry in its application to soil systems; Mineralogy and chemistry of sand and silt; The colloidal menerals of soil; The nature and physicochemical properties of soil humic matter; Molecular adsorption by soil materials; Electrochemical properties of the clays; Ionic exchange reactions; Fixation reactions; Electrokinetic and mechanical properties of clay suspensions and pastes. v. 2 - Soils in place - Pedology in relation to physicochemical and mineralogical processes; Early stages in rock weathering; Hydrothermal synthesis of minerals in relation to pedology; The chemical expression of climatic factors; Quantitative aspects of soil profiles; Characterization of the pedological environmental and its products: physical and chemical methods as applied to soil profiles; Physical description of soil profiles; Mineralogical analysis; Chemical analysis of soils and soil fractions; Ionic properties of the exchenge complex and the soil solution.
