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Filtering by: Creator Hewitt, Samuel Loyd Degree Field Soil Science

Effect of N, Mn, and Cu treatments on nutrient uptake by barley, oats, wheat, and triticale

Creator:

Kalayci, Mufit

Abstract:

Experiments were established on a Warden soil on Lower Klamath Lake area to evaluate the effect of Mn and Cu, and Band applications of ammonium sulfate on the uptake of micronutrients and response from Mn and Cu applied for the production of small grain crops. Band application of ammonium sulfate...

Resource Type:

Masters Thesis

Full Text:

(Hewitt, 1958) or to the mutual interference in uptake (Jackson, 1967). 2. Ca. In an experiment with
Effects of lime and VA-Mycorrhiza interactions on growth responses of sweetgum seedlings

Creator:

Davis, Elizabeth Anne

Abstract:

A study, consisting of two sequential greenhouse experiments, was designed to determine the effects of soil liming upon the fungal partner in a mycorrhizal association. A Willamette Valley foothill soil, of the Jory series, was limed in increments to achieve a range of acidity and alkalinity. The P-deficiency and P-fixing...

Resource Type:

Masters Thesis

Full Text:

colonization has been associated with low Mn soils (Samuel 1926). Since some of the micronutrient
Simulation and field validation of heat and water flow during soil freezing and thawing

Creator:

Pikul, Joseph Lawrence

Abstract:

Freeze/thaw cycles are numerous in agricultural soils of the Pacific Northwest. Potential loss of soil by erosion is high whenever a soil thaws from the surface creating a saturated soil overlying an impermeable frozen layer. Field studies were conducted to investigate the effect of surface residue on soil freezing. Residue...

Resource Type:

Dissertation