Author: Homer Jay WheelerPublisher:
ISBN:
Category : Liming of soils
Languages : en
Pages : 34
Book Description
Chemical Methods for Ascertaining the Lime Requirements of Soils
Author: Homer Jay WheelerPublisher:
ISBN:
Category : Liming of soils
Languages : en
Pages : 34
Book Description
The Chemistry of Soils - Including Information on Acidity, Nitrification, Lime Requirements and Many Other Aspects of Soil Chemistry
Author: Various AuthorsPublisher: Read Books Ltd
ISBN: 1473390338
Category : Technology & Engineering
Languages : en
Pages : 52
Book Description
“The Chemistry of Soils” is a treatise on the scientific aspects of soil, exploring such subjects as lime requirements, acidity, nitrification, etc. This timeless volume contains a wealth of information that will be of use to the farmer of keen gardener. Contents include: “And Preparation Of Sample”, “Plant Nutrients In The Soil”, “Absorption Of Substances By Soils”, “Flocculation And Deflocculation Of Clay”, “Density And Pore Space”, “Sticky Point”, “Water”, “Holding Capacity”, “Field Capacity”, “Humus”, “Ammonification And Nitrification”, “Soil”, “Sourness, Soil Acidity And Methods For Determining”, “The Lime Status Of Soils”, etc. Many vintage books such as this are increasingly scarce and expensive. It is with this in mind that we are republishing this volume now in an affordable, modern, high-quality edition complete with a specially-commissioned new introduction on soil science.
Evaluation of Chemical Methods in Assessing Lime Requirements of Sandy Soils in Northeastern Nebraska
Author: Kolade Ebenezer AlabiPublisher:
ISBN:
Category : Liming of soils
Languages : en
Pages : 138
Book Description
Soil Chemical Methods - Australasia
Author: George E RaymentPublisher: CSIRO PUBLISHING
ISBN: 0643102183
Category : Science
Languages : en
Pages : 520
Book Description
Soil Chemical Methods – Australasia describes over 200 laboratory and field chemical tests relevant to Australasia and beyond. The information and methodology provided across 20 chapters is comprehensive, systematic, uniquely coded, up-to-date and designed to promote chemical measurement quality. There is guidance on the choice and application of analytical methods from soil sampling through to the reporting of results. In many cases, optional analytical ‘finishes’ are provided, such as flow-injection analysis, electro-chemistry, multiple flame technologies, and alternatives to chemical testing offered by near-range and mid-range infrared diffuse reflectance spectroscopy. The book supersedes and updates the soil chemical testing section of the 1992 Australian Laboratory Handbook of Soil and Water Chemical Methods of Rayment and Higginson, while retaining method codes and other strengths of that Handbook. Chapters cover soil sampling, sample preparation and moisture content; electrical conductivity and redox potential; soil pH; chloride; carbon; nitrogen; phosphorus; sulphur; gypsum; micronutrients; extractable iron, aluminium and silicon; saturation extracts; ion-exchange properties; lime requirements; total miscellaneous elements; miscellaneous extractable elements; alkaline earth carbonates and acid sulfate soils. In addition, there are informative Appendices, including information on the accuracy and precision of selected methods. This book targets practising analysts, laboratory managers, students, academics, researchers, consultants and advisors involved in the analysis, use and management of soils for fertility assessments, land use surveys, environmental studies and for natural resource management.
Journal of the Chemical Society
Author: Chemical Society (Great Britain)Publisher:
ISBN:
Category : Chemistry
Languages : en
Pages : 1088
Book Description
Liming Requirement of Selected Willamette Valley Soils
Author: Paul William PetersonPublisher:
ISBN:
Category : Soil acidity
Languages : en
Pages : 198
Book Description
There are two major problems associated with soil acidity and lime response investigations: A. Determining how much lime (100% "available" CaCO3 equivalent) is required to raise a soil pH (or degree of acidity) from its existing level to a specified level - presumably where need for lime is eliminated. B. Determining responses of different crops on different soils to lime; and defining some chemical measurement of the soil that will predict the response of a specified crop. Investigations in this study were limited to the first problem. Liming characteristics of 45 acid Willamette Valley soils, representing the major agricultural soil associations, were determined by incubating the soils with increments of CaCO3. The lime required to bring the soils to the specified pH levels of 6.8, 6.4 and 6.0 varied widely within the respective pH levels. Relationships between soils, however, as determined by the value of the incubation curve slope (meq. of CaCO3 /100g of soil required to raise soil pH by one unit), were improved by grouping into related soils. Laboratory measurements of other soil chemistry parameters were compared with changes in pH to determine if a satisfactory quick laboratory procedure could be developed to measure the incubation lime requirement of soils with different chemical characteristics. Measurements of soil pH were made by three different methods: (1) in the supernatant of a 1:2 soil to water suspension; (2) in the sedimented paste of the 1:2 soil to water suspension; and (3) in the supernatant of a 1:2 soil to 1 N KCl suspension. Lime requirement with a buffered solution was measured in limed and unlimed soils by use of the SMP (Shoemaker, McLean, and Pratt) buffer method. Soil samples treated with increments of lime were analyzed for extractable Al and exchange acidity by titration and the unincubated soils were analyzed for exchange acidity determined by subtracting exchangeable bases from CEC measured at pH 7. 0 and pH 6. 0. Results of the correlation analyses showed that the SMP buffer method should prove useful for predicting the incubation lime requirement. Correlation coefficients for these two values were .89, .90 and 86, respectively, to reach pH levels of 6.8, 6.4 and 6.0. Soil pH measurements, extractable Al, and exchange acidity determinations did not provide as good a basis for determining incubation lime requirements, Regression equations were calculated for the SMP buffer/incubation lime requirement relationships. The purpose of this study was to identify the changes in soil chemical measurements that take place with application of lime. No attempt was made to determine whether a crop might respond to an application of lime on an acid soil. The assumption was made that yield could be related to specific pH or soil acidity levels that could be measured in the laboratory. Therefore, the problem was approached by studying procedures that might determine the application of lime required to reach a specified pH or soil acidity measurement. It anticipated that field trials for evaluating lime response will be carried out in the future to evaluate the usefulness of the SMP buffer method which showed promise in this regard.
Report
Author: Pennsylvania State University. Agricultural Experiment StationPublisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 810
Book Description
Journal of the American Chemical Society
Author: American Chemical SocietyPublisher:
ISBN:
Category : Chemistry
Languages : en
Pages : 484
Book Description
Proceedings of the Society are included in v. 1-59, 1879-1937.
Journal of the American Society of Agronomy
Author: American Society of AgronomyPublisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 1492
Book Description
An international journal of agriculture and natural resource sciences.
Report
Author: Pennsylvania State CollegePublisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 806
Book Description