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Correlation of phosphorus soil tests and forms of inorganic soil phosphorus with crop response and phosphorus uptake from Aiken soils

Creator:: Vacharotayan, Sorasith
Resource Type:: Dissertation
Full Text:: the Amounts of Different Forms of Soil Phosphorus and Phosphorus Content of Oats and Clover Grown

Availability of phosphorus in central Oregon soils in comparison with selected Oregon soils

Creator:: Araos, Jose Fernando
Abstract:: The objectives of this study were to evaluate and compare the availability of native and applied P in Central Oregon pumice soils with that in Willamette valley soils and calcareous soils from Eastern Oregon. The experimental work to meet these objectives included laboratory and greenhouse studies. The removal of P...
Resource Type:: Masters Thesis
Full Text:: solution, soil to solution ratio, and time of shaking. 17 3. Phosphorus fixation by soils during one

The relationships between zinc, iron, and phosphorus in sweet corn

Creator:: Hay, James Ronald
Abstract:: The relationships between zinc, iron, and phosphorus in sweet corn were investigated under field and greenhouse conditions. The soils used in this study (both acid and calcareous) were low in available zinc and phosphorus. The experiments received standard, uniform rates of nitrogen potassium, magnesium, and sulphur. Corn was used as...
Resource Type:: Masters Thesis
Full Text:: treatrnents on soil 435. Both iron and phosphorus contents were greatly increased while the zinc content was

Chemical properties of soils related to seasonal fluctuations in exchangeable potassium

Creator:: Etter, Harold Mac Donald
Abstract:: Representative sites of the Dayton, Woodburn, Jory, Quillayute, Astoria, Willamette, Walla Walla, Deschutes, Laki and Owyhee soil series were investigated for seasonal changes in exchangeable potassium in air dry samples. No consistent seasonal variations were found which could be attributed to wetting and drying in the field. Cropping reduced the...
Resource Type:: Masters Thesis
Full Text:: relationship between clay content vs air dry or oven dry exchangeable K, especially for the soil Edina #32 in

The effect of selected potassium salts on the availability of soil manganese

Creator:: Westermann, D. T. (Dale Thomas), 1941-
Abstract:: Incubation experiments with an acid poorly drained soil have shown that the application of neutral soluble salts influenced the level of extractable Mn. The application of a salt which lowered the soil pH either increased the extractable Mn or retarded the oxidation and/or fixation of extractable Mn. This effect was...
Resource Type:: Dissertation
Full Text:: their studies. Available soil Mn and the Mn content found in plants were increased by the addition of

Distribution patterns of soil-applied herbicides using fluorescent tracers

Creator:: Page, Glen E. and Oregon State University. Agricultural Experiment Station
Abstract:: Published June 1966. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: ' S. I 05 4 es.5- Hoar, Cop- Distribution Patterns of Soil

Effects of sulfur on yield and plant sulfur of subterranean clover

Creator:: Loqa, Harith Jabbouri, 1937-
Abstract:: Subterranean clover was grown in nutrient solution and S deficient Steiwer soil in the greenhouse. Plants were harvested at 15, 30, 45 and 60 days after emergence. When subterranean clover was grown in nutrient solution significant yield response to each increment of added sulfate (SO₄-S) occurred in 15, 30, 45...
Resource Type:: Masters Thesis
Full Text:: ) occurred with 30 day old plants grown in the Steiwer soil. The critical plant S content of subterranean

Changes in soil respiration patterns induced by altering carbon-to-nitrogen ratio with nitrate nitrogen

Creator:: McCarthy, Charlotte Marie
Resource Type:: Masters Thesis
Full Text:: LITERATURE REVIE Woilny d1scvcred in 1880 that the carbon dioxide content of the soil rises and falls

Iron and manganese distribution and seasonal oxidation changes in soils of the Willamette drainage sequence

Creator:: Somera, Rosa Duro
Abstract:: This study was conducted to investigate the differences of the profile distribution of free iron and free manganese and the reduction-oxidation changes in soils of the Willamette drainage sequence. Based on the results of the chemical analyses, free iron and free manganese distributions in these soils were governed to a...
Resource Type:: Masters Thesis
Full Text:: content of free Mn in soil profiles of the Willamette drainage sequence. 5a Ferrous iron content of

Soluble carbon and respiration of forest humus

Creator:: Hu, Lily Jho-yuan
Abstract:: Humus is one of the important factors controlling the soil formation process. The nutrients released from it during the decomposition process also affect the growth and reproduction of the forest. The type of humus formed is influenced by the nature of the forest litter and the environment in which it...
Resource Type:: Masters Thesis
Full Text:: content, but to the available organic matter in the soil. Stotzky and Mortensen (1957) found that N was

ScholarsArchive@OSU

Correlation of phosphorus soil tests and forms of inorganic soil phosphorus with crop response and phosphorus uptake from Aiken soils

Availability of phosphorus in central Oregon soils in comparison with selected Oregon soils

The relationships between zinc, iron, and phosphorus in sweet corn

Chemical properties of soils related to seasonal fluctuations in exchangeable potassium

The effect of selected potassium salts on the availability of soil manganese

Distribution patterns of soil-applied herbicides using fluorescent tracers

Effects of sulfur on yield and plant sulfur of subterranean clover

Changes in soil respiration patterns induced by altering carbon-to-nitrogen ratio with nitrate nitrogen

Iron and manganese distribution and seasonal oxidation changes in soils of the Willamette drainage sequence

Soluble carbon and respiration of forest humus

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