ProQuest Subject Index - Soil sciences at IOWA STATE UNIVERSITY

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You are viewing titles for IOWA STATE UNIVERSITY in the Soil sciences available through the UMI Dissertations & Thesis Gradwoorks site

Soil quality response to manure or compost amendments in alternative Iowa farm systems	Soil landscape modeling in the Northwest Iowa Plains region of O'Brien County, Iowa

Plumbing agricultural landscapes for water quality improvement: Coexistence of intensive agriculture and good water quality	Long term effects of phosphorus and conservation tillage management on crop yield and soil phosphorus in corn-soybean rotations

Grazing management effects on sediment and phosphorus losses from streambanks	Dynamic soil properties across a suburban landscape, Ankeny, Iowa

Soil respiration and plant growth across a chronosequence of tallgrass prairie reconstructions	Efficiency of fall and spring broadcast fertilizer phosphorus application for corn and soybean in no-till

Comparison of ESN, urea, and aqua ammonia as sources of nitrogen for corn production in Iowa	The effects of farmer attitudes and farm management practices on soil quality: A study in Cherokee County, Iowa

Effects of landscape position and age of reconstructed prairies in previously cultivated land on soil carbon dynamics and physical properties	The effect of bio-char on soil properties and corn grain yields in Iowa

Topdressing and aerification programs on creeping bentgrass fairways	Use of seed treatments and inoculants in no-tillage soybean production practices

Soil sample handling for routine analysis of plant-available soil potassium	Sand-based turfgrass root-zone modification with biochar

Phosphorus sorption-desorption of soils and sediments in the Rathbun Lake watershed	Alternative weed management practices: Effects on weed control, grapevine performance, and soil quality in an established midwestern vineyard

Ephemeral gullies and ecosystem services: Social and biophysical factors	Potassium-magnesium antagonism in high magnesium vineyard soils

Assimilating in situ soil moisture measurements into the DSSAT-CSM using a Kalman filter	Relationships between potassium fertilization, removal with harvest, and soil-test potassium in corn-soybean rotations

Soil moisture dynamics in agriculturally-dominated landscapes after the introduction of native prairie vegetation	Sustainable soils, sustainable communities: Promoting the environmental and social sustainability of human-soil interactions in Iowa

Using topographic and soils data to understand and predict field scale soil moisture patterns	Persistence and ecological implications of maize-expressed transgenic endo-1,4-beta-D-glucanase (E1) in agricultural soils

Effect of fast pyrolysis biochar on physical and chemical properties of a sandy soil	Evaluation and implementation of methods for quantifying organic and inorganic components of biochar alkalinity

Nitrogen sources and sinks in Iowa soils: Biogeochemical links between carbon inputs, nitrate leaching, and nitrous oxide emissions	Relationship between concentration of isoflavones in soybean grain and potassium fertilization

Use of precision agriculture technologies in studying the relationships among soil pH, calcium carbonate equivalent, soybean cyst nematode population density, and soybean yield	Use of poultry manure as a phosphorus source for corn production in Iowa

Modeling phosphorus transport using the WEPP model	Soil management, crop rotations, and biomass removal effects on soil organic matter content

Measurement of coupled soil heat and water processes	Using on-farm strip-trials to improve nitrogen management for corn

Land management database development: Methods for delineating management units and estimating crop and residue cover	Assessment of nitrogen supply from poultry manure applied to corn

Nitrous oxide and methane fluxes in riparian buffers and adjacent crop fields	Soil and fertilizer potassium impacts on corn and soybean grain yield, potassium uptake, and within-field grain yield variation

Sorption, degradation, and transport of sulfamethazine in soils and manure-amended soils	Fifty years of agricultural soil change in Iowa

Stream bank soil and phosphorus losses within grazed pasture stream reaches in the Rathbun Watershed in southern Iowa	Utilization of active canopy sensors for nitrogen fertilizer management in corn

Estimation of change in soil water nitrate-nitrogen concentration using impedance spectra	Argillic horizons and clay-sized particles---An alternative interpretation of their dynamics in sola development and across catenas

Soil pH and lime management for corn and soybean	Biochar characterization and engineering

The impacts of colloidal material on the fate and transport of 17 beta-estradiol in three Iowa soils