Author: Guider Foreman HenryPublisher:
ISBN:
Category : Lime
Languages : en
Pages : 190
Book Description
Lime Requirements of Some Georgia Soils and a Comparison of the Neutralizing Values of Liming Materials Differing in Chemical Composition and Grades of Fineness
Author: Guider Foreman HenryPublisher:
ISBN:
Category : Lime
Languages : en
Pages : 190
Book Description
A Comparative Study of the Effects of Several Forms of Lime on Certain Biological, Chemical and Physical Properties of the Soil
Author: R. M. BarnetteSoil Acidity and Liming
Author: Fred AdamsPublisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 400
Book Description
The chemistry of acidity. Physiological effects of hydrogen, aluminum, and managanese toxicities in acid soil. Physiological aspects of calcium, magnesium, and molybdenum deficiencies in plants. Liming materials and practices. Crop response to lime in the southern united states. Crop response to lime in the midwestern united states. Crop response to lime in the northeastern united states. Crop response to lime in the wested states. Crop response to lime on soils in the tropics. Glossary-common and scientific names of crops referred to in this monograph.
Criteria for the Evaluation of Agricultural Ground Limestone
Author: R. M. SalterPublisher:
ISBN:
Category : Hydration
Languages : en
Pages : 12
Book Description
The functions and importance of calcium and magnesium supplied to the soil by liming have been discussed in detail by Fippin (10). We shall merely summarize this phase of the subject by saying that liming increases the efficiency of utilization of the available water and fertility of the soil by correcting some factors unfavorable to plant growth, making possible more economical crop production and tending to conserve the soil. Only the basic calcium and magnesium compounds--the oxides, hydroxides, and carbonates (and possibly certain silicates, such as blast furnace slag)--are to be included under the term "liming materials." Ground burned lime was formerly in favor, but is no longer of much importance in agriculture. Hydrated lime is still used to a considerable extent where a concentrated and very quickly active lime is desired. Its extreme fineness and bulk make it easy to spread at light rates, and the temporarily very high pH value resulting from heavy applications may have a sterilizing effect, not shown by ground limestone, against certain plant diseases. The total neutralizing power (T.N.P.) of hydrate and other liming materials, expressed as the equivalent percentage of calcium carbonate (C.C.E.), should always be specified rather than the contents of total oxides only, as is sometimes done, as the latter permits no comparison of value without calculation. Ground limestone, the cheapest and usually the most economical agricultural lime, is offered in several grades, both dolomitic and high-calcium, at prices naturally increasing with the expense of finer grinding and of drying necessary for this operation, and of marketing in bags. Meal and agricultural ground limestone can be produced from undried rock, shipped in open cars, and piled in the field--factors conducive to low cost per ton spread. But for quick effects, these grades must be applied at a heavier rate which may be less profitable than a lighter application of a higher grade liming material. High-magnesium limestone is known to be less rapidly active in the soil, but is usually of higher potential activity as indicated by the total neutralizing power, and some soils, chiefly in the eastern seaboard states, are in great need of the element, magnesium. It is generally accepted that for equal effects a dolomite should be more finely ground than a high-calcium limestone, but little has been published on which to base an opinion as to the optimum fineness under a particular set of circumstances.
Lime and Liming
Author: Great Britain. Law CommissionPublisher:
ISBN:
Category : Fertilizers
Languages : en
Pages : 56
Book Description
Comparison of Soil Liming Materials
Author: Alfred Theodor WianckoPublisher:
ISBN:
Category : Liming of soils
Languages : en
Pages : 36
Book Description
A Field Comparison of Hydrated Lime with Limestone of Different Degrees of Fineness
Author: Burt Laws HartwellPublisher:
ISBN:
Category : Lime
Languages : en
Pages : 28
Book Description
The Principles of the Liming of Soils
Author: Edmund Cecil ShoreyPublisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 40
Book Description
"The application of lime to soils brings about beneficial results in several ways. It stimulates the proper decomposition of the organic matter in the soil, neutralizes acids in the soil, improves tho physical condition of heavy soils, supplies lime to growing plants, or makes available other elements in the soil. The great majority of the soils of the East, South and portions of the Central West are deficient in lime and will respond in increased yields to applications of lime. In the following pages information is presented regarding the materials used in liming their preparation and use, as well as a discussion of the chemical changes brought about in the soil by lime, so far as they are known. The relative merits of different forms of lime are discussed and data furnished whereby the value of any particular form of lime for agricultural purposes may be determined approximately. The bulletin has been prepared primarily from the point of view of materials used in liming and the principles involved in their use." -- p. [2]
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 Relation Between the Fineness of Limestone and Its Rate of Solution
Author: Levin Bowland BroughtonPublisher:
ISBN:
Category : Limestone
Languages : en
Pages : 20
Book Description