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Potassium availability in some Oregon soils

Creator:: Bushnell, Vernon Clifford
Resource Type:: Dissertation
Full Text:: Potassium Availability in Some Oregon Soils

The potassium status of Eastern and Central Oregon soils

Creator:: Abuzkhar, Ahmed Ali
Abstract:: The potassium status of selected soils from central and eastern Oregon, that have shown a wide range in response from potassium was investigated. The silt and clay minerals were identified using X-ray crystallography. The potassium extracted by water, NH₄OAc, and HNO₃ was evaluated on the total soil and on the...
Resource Type:: Masters Thesis
Full Text:: content. For example, the water soluble potassium increased from 35 14/gm in the Metolius soil with 30

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:: potassium in the Dayton soil was found to be affected by the physical nature of the extracting procedure

Soil factors related to potassium deficiency of stone fruits in the Willamette Valley

Creator:: Selig, Randy S.
Resource Type:: Masters Thesis
Full Text:: Soils 3 Availability of Soil Potassium 4 Potassium Uptake by Plants 8 Potassium in Oregon Soils 10

The release of exchangeable and nonexchangeable potassium from several western Oregon soils

Creator:: Pope, Alexander
Resource Type:: Dissertation
Full Text:: The Release of Exchangeable and Nonexchangeable Potassium

Potassium release from several western Oregon soils and its relationship to crop growth and soil mineralogy

Creator:: Gardner, Ernest Hugh
Resource Type:: Dissertation
Full Text:: Its Relationship to Crop Growth and Soil Mineralogy POTASSIUM RELEASE FROM SEVERAL WESTERN OREGON

Phosphorus availability in biosolids-amended soils

Creator:: Choate, Jeff
Abstract:: Quantifying labile phosphorus (P) pools in biosolids is needed to manage biosolids for both agronomic and environmental purposes. Phosphorus indices originated in an effort to protect surface water quality from-non-point-agricultural P inputs. The objectives of this research were to: (1) evaluate soil test components of the western Oregon P index...
Resource Type:: Masters Thesis
Full Text:: research were to: (1) evaluate soil test components of the western Oregon P index in field and laboratory

Postpartum disorders associated with high potassium forages in Holstein cows

Creator:: Crill, Roberta L.
Abstract:: Until recently, occurrence of milk fever (MF) has been attributed to prepartum calcium intake. However, researchers in Iowa have concluded that high prepartum dietary potassium (K) is the major cause of MF. Potassium concentrations have been increasing on manure fertilized soils over the last 20 years. Grasses grown on these...
Resource Type:: Masters Thesis
Full Text:: LIST OF TABLES PageTable 1.1 An Interpretation of Soil Tests for Extractable Potassium 5 1.2

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:: correlation coefficients between available soil P determined by different methods and P content and uptake

Measurement of microbial biomass phosphorus in Oregon soils

Creator:: Claycomb, Peter T.
Resource Type:: Masters Thesis
Full Text:: of soil E. 3. Changes in gravimetric water content of field 61 soils during the sampling period. 4a

ScholarsArchive@OSU

Potassium availability in some Oregon soils

The potassium status of Eastern and Central Oregon soils

Chemical properties of soils related to seasonal fluctuations in exchangeable potassium

Soil factors related to potassium deficiency of stone fruits in the Willamette Valley

The release of exchangeable and nonexchangeable potassium from several western Oregon soils

Potassium release from several western Oregon soils and its relationship to crop growth and soil mineralogy

Phosphorus availability in biosolids-amended soils

Postpartum disorders associated with high potassium forages in Holstein cows

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

Measurement of microbial biomass phosphorus in Oregon soils

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