Results 211 to 220 of about 138,834 (261)

Microbiological and chemical properties of paddy soil

Plant and Soil, 1967
Rice is one of the main crops in the U.A.R. especially in fertile soils. Cultivation of rice in such soils is expected to change the normal microflora ; a matter which may affect their fertility. It is expected that water-logging will promote the growth of anaerobic microflora.
S. M. Taha, S. A. Z. Mahmoud, A. N. Ibrahim   +2 more
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The Chemical Properties of Soil

1964
Humus to the chemist is the final product of the disintegration of the organic substances of plant and animal tissues, but to the gardener and agriculturist it means a whole range of products between the raw material and humus proper. It will be convenient therefore to say something first of all about the processes that bring about this decomposition ...
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The Effects of Palygorskite on Chemical and Physico-Chemical Properties of Soils

2011
Abstract The present review is intended to summarize studies on the effects of palygorskite on chemical and physico-chemical properties of soils carried out in recent years, and to discuss future research required in this area. When palygorskite-containing soils are involved in irrigation practices, release of Mg from palygorskite into the soil ...
Alexander Neaman, Arieh Singer
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Chemical Properties of Soil

2012
The soil is a chemical entity. All the materials there are chemical substances. Soils are composed of solid, liquid, and gas; soluble and insoluble; and organic as well as inorganic substances. There are ions and compounds, salts, acids, bases, minerals, and rock fragments. There are also colloids which are very active chemically.
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Sampling Soils for Physical and Chemical Properties

Soil Science Society of America Journal, 1956
Abstract A sampling study was made on soil characteristics from an organic matter experiment on Sassafras sandy loam soil on Long Island. The paper gives the components of variance for plots, samples, and determinations for several chemical and physical properties.
Walter C. Jacob, Arnold Klute
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Physico-Chemical Properties of Soils: Soil-Water Systems

Journal of the Soil Mechanics and Foundations Division, 1959
The heat of wetting, the diffusibility of hydrogen and isotopic prothium-deutrium exchange, indicate that a part of the water in a clay-water system should be considered as belonging to the mineral phase. The minerals thus consist of a central silicate skeleton with an outer part of aqueous composition.
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Liming impact on soil chemical properties

2010
In order to examine the residual effect of liming on soil pH and plant available phosphorus and potassium, soil samples from two field trials were analyzed. First trial was conducted in 2000 on Pleternica site where increasing rates of carbocalk (refuse from sugar factory with total Ca content 344 g kg-1) was applied (0, 15, 30, 45, 60 and 90 t ha-1 ...
Rastija, Mirta, Kovačević, Vlado, Rastija, Domagoj, Ragályi, Peter, Andrić, Luka   +4 more
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Strength Properties of Chemically Solidified Soils

Journal of the Soil Mechanics and Foundations Division, 1972
Injection of chemical grout is a valid means of strengthening sandy soils. Submission of valid strength data is recommended as a condition for use of any particular grout material. Pertinent data should include the specimen size, method of preparation, age, curing environment, and method of test.
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Physico-Chemical Properties of Soils: Role of Soil Technology

Journal of the Soil Mechanics and Foundations Division, 1959
This paper defines and describes the applied science called "soil technology." The powerful contributions that soil technology makes to soil engineering are next presented and illustrated. Some of the future developments in soil knowledge which can be expected are then discussed.
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Predicting radiocaesium sorption characteristics with soil chemical properties for Japanese soils

Science of The Total Environment, 2015
The high variability of the soil-to-plant transfer factor of radiocaesium (RCs) compels a detailed analysis of the radiocaesium interception potential (RIP) of soil, which is one of the specific factors ruling the RCs transfer. The range of the RIP values for agricultural soils in the Fukushima accident affected area has not yet been fully surveyed ...
Shinichiro Uematsu, Erik Smolders, Lieve Sweeck, Jean Wannijn, May Van Hees, Hildegarde Vandenhove   +5 more
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