Browsing by Subject "Soil Science"
Now showing items 1-19 of 19
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(Texas A&M University. Libraries, 1981)Two mining areas of different ages, one area mined in 1972 and the other in 1977, were sampled in June and July of 1978. Twenty-five 100 cm cores were taken from each area and subdivided into 10 cm segments. Material from ...
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(2011-08-04)Predicting soil crack formation and closure in high shrink-swell soils is crucial for modeling water movement and solute transport. However, soil cracking, as it occurs in natural conditions, is not well understood. The ...
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(Texas A&M University. Libraries, 1981)Surface strip mining is currently the fastest way to recover lignite and bituminous coal. The strip mining results in the disturbance of large acreages of land. However, specific management of the spoils is required to ...
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(Texas A&M University. Libraries, 1981)The terrace system and associated soils of the Brazos River in north-central Texas were studied to determine (1) the stratigraphy and origin of the terrace deposits; (2) the landscape distribution and classification of ...
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(Texas A&M University. Libraries, 1976)A greenhouse experiment was conducted to determine the effect of 2-chloro-6-(trichloromethyl) pyridine, nitrapyrin, on nitrification in a Norwood silty clay loam under two moisture regimes. Calcium nitrate and ammonium ...
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(Texas A&M University. Libraries, 1978)Five salt water cooling towers recently constructed near Galveston Bay, Texas have been shown to contribute to salt deposition in the surrounding area. Levels as high as 1200 kg salt/ha/yr were encountered within 100 m of ...
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(Texas A&M University. Libraries, 1984)The deficiency of nitrogen and phosphorus in mixed overburden mine spoils has resulted in interest in strategies to minimize fertilizer application. In this study, the abundance of microbial populations, with emphasis on ...
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(Texas A&M University. Libraries, 1978)Major woody plant communities of the western Llanos of Guarico, Venezuela, were studied in 1975-77 to determine community structure, soil types, relationships of plant distribution to topographic, drainage and edaphic ...
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(Texas A&M University. Libraries, 1983)The Edwards Plateau covers 10 million ha in Central and West Texas (nearly 14% of the state) and is an important agricultural rangeland. A strong climo-gradient extends across the area with annual precipitation decreasing ...
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(Texas A&M University. Libraries, 1978)Lignite is currently strip mined in Freestone County for fuel in electric generating plants. Similar mining operations will be conducted in the Milam County area in the near future. Lignite core samples were obtained from ...
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(Texas A&M University. Libraries, 1984)Growth chamber studies were conducted to develop a visual test for differentiating sorghum cultivar Fe-efficiency in CaCO(,3) buffered nutrient culture. Nine sorghum cultivars were germinated in vermiculite and grown for ...
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(Texas A&M University. Libraries, 1982)The major soils comprising the Gezira scheme are Hosh, Suleimi and Laota. These soils are dark grayish brown to dark brown, calcareous clays with < 1% organic matter.<p> The mineralogical data show that the soils of the ...
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(Texas A&M University. Libraries, 1982)Fifty five surface soils were evaluated for yield response to Mo fertilization. Dry matter yields of the + Mo and no Mo treatments were significantly different on approximately 33% of the soils. Only three soils produced ...
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(Texas A&M University. Libraries, 1983)The objective of this research was to examine the potential mobility of selenite (SeO(,3)('-2)) and selenate (SeO(,4)('-2)) in a composite of east Texas overburden materials. Portions of deep (20-60 m) cores from along the ...
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(Texas A&M University. Libraries, 1984)The relationship between system pH and glyphosate adsorption on Al('+3), Ca('+2), and Na('+1) saturations of montmorillonite and nontronite, NaCl washed kaolinite, hematite, and goethite was investigated. The quantity of ...
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(Texas A&M University. Libraries, 1982)Adsorption of P from solution by the limed and unlimed soil and sand samples occurred rapidly during the first minute and then decreased. A gradual sorption of P continued for periods greater than 72 hours. Increasing the ...
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(Texas A&M University. Libraries, 1984)Sergipe state is located Northeast of Brazil between the parallels 9(DEGREES)31'20" and 11(DEGREES)34'12" south latitude, and between the meridians 36(DEGREES)24'27" and 38(DEGREES)11'20" by longtitude west of Greenwich. ...
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(Texas A&M University. Libraries, 1982)Three soils and 10 plant species were utilized to determine levels of plant accumulation of cobalt, sorption of cobalt in soil, influence of three management techniques on cobalt availability, and evaluation of four ...
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(Texas A&M University. Libraries, 1983)An Fe dust waste accumulates as a by-product from the steel industry and poses a disposal problem. Since the waste contains approximately 43% Fe, 5.4% Zn, and 1.9% Mn, it shows potential for recycling as a plant food. ...