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Soil fertility investigations on soil solution composition and nutrition of sweet corn and onions

Creator:: McAndrew, David Wayne
Abstract:: Laboratory incubation studies and field studies with sweet corn and onions were undertaken to evaluate interactions of lime, phosphorus (P), and copper (Cu). Eight soils were incubated at a constant temperature of 21 °C with combinations of band placed monocalcium phosphate (MCP), ammonium sulfate (AmS), and copper sulfate pentahydrate (CSPH)...
Resource Type:: Dissertation
Full Text:: concentration in sweet corn, experiment one 1980. Broadcast P rate and rate of banded P effects on yield of

Incinerated sewage sludge use as a soil amendment for sweet corn (Zea mays L.)

Creator:: Mellbye, Mark Edward
Abstract:: Field and greenhouse experiments were conducted to determine the suitability of using incinerated sewage sludge ash as a soil amendment for sweet corn production on Willamette silt loam. In 1977, field plots were treated with 0, 11, 22, and 43 mt/ha of ash containing lime, in factorial combination with a...
Resource Type:: Masters Thesis
Full Text:: a soil amendment for sweet corn production on Willamette silt loam. In 1977, field plots were

Physiological effects of water stress on young corn plants

Creator:: Barlow, Edward William Ross
Abstract:: Laboratory experiments were used to investigate the mechanism of plant response to water stress by determining the sensitivity of leaf elongation, photosynthesis and transpiration in young corn plants to a decrease in leaf water potential. In initial experiments, 9 day old corn plants were grown at soil water potentials of...
Resource Type:: Dissertation
Full Text:: Physiological effects of water stress on young corn

Cover crops and biochemical functional diversity in relation to nitrogen availability in soil

Creator:: Burket, John Zimmerman
Abstract:: Nitrogen availability in agricultural soils from fertilizer, plant residue inputs, and soil organic matter has important implications beyond crop yield. Legume winter cover crops and one fourth the recommended N rate on sweet corn resulted in yields equivalent to those at the recommended rate in the Willamette Valley of western...
Resource Type:: Dissertation
Full Text:: fourth the recommended N rate on sweet corn resulted in yields equivalent to those at the recommended

Estimating plant-available nitrogen release from manures, composts, and crop residues

Creator:: Gale, Eric S.
Abstract:: In order to properly utilize organic amendments as nitrogen sources, reliable methods to estimate plant-available nitrogen (PAN) are needed. The objectives of this study were to (1) evaluate the use of crop and soil responses in fertilizer N equivalence (FNE) calculations, (2) examine the relationships between the C/N ratio, total...
Resource Type:: Masters Thesis
Full Text:: amendments were applied to sweet corn (Zea mays L.) in 2002 and 2003. The FNE values for amendments were

Nitrogen mineralization from organic amendments during the second year following application

Creator:: Kusonwiriyawong, Charirat
Abstract:: Estimates of nitrogen (N) available from long-term application of organic amendments are required to balance N inputs with crop N requirements. Two studies were conducted to (1) determine N mineralized from organic amendments (manures and composts) during year 2 after application, and (2) compare plant-available N (PAN) determined via in...
Resource Type:: Masters Thesis
Full Text:: organic amendment treatments were applied in 2003. In 2004, our study measured sweet corn crop response

Winter cover cropping effects on integrative biological indicators of soil quality

Creator:: Ndiaye, Evelyne L.
Abstract:: Responses of biological indicators of soil quality to winter cover cropping were measured on soil samples collected from 6 commercial growers' fields and two experiment research stations in the Willamette Valley of Oregon. The research stations were the North Willamette Research and Extension Center (Aurora, OR), and the Oregon State...
Resource Type:: Masters Thesis
Full Text:: and nitrogen management in sweet corn and broccoli rotations. HortSci. 32: 664-668. Burns, R.G

Temperature and water potential effects on physiological functions of sudangrass (Sorghum vulgare var. Piper)

Creator:: Young, Richard Su-Shung
Abstract:: Temperature and water potential effects on the growth, transpiration, total nonstructural carbohydrate (TNC) content, and nutrient uptake of sudangrass (Sorghum vulgare var. piper) were investigated in laboratory experiments. The effect of nitrogen supply on the growth and nutrient uptake at constant soil water potential was also investigated in this study....
Resource Type:: Dissertation
Full Text:: soil temperature and soil water potential were kept constant in these experiments. Finally, the effect

Effects of green manures on verticillium wilt of potatoes and on soil properties related to disease suppression

Creator:: Ochiai, Naoyuki
Abstract:: Increasing regulation and costs of soil fumigation to manage diseases such as Verticillium wilt caused by soil-borne pathogens have prompted a search for management alternatives. Single-year microplot experiments were conducted in 2002 and 2003 in central Oregon to evaluate the effects of Austrian winter pea, broccoli, and Sudan grass green...
Resource Type:: Masters Thesis
Full Text:: grass, Austrian winter peas (28), sweet corn or barley (26) is not always related to changes in

Field management effects on the thermal stability and activity of soil enzymes in whole soil and aggregates

Creator:: Bandick, Anna Katrina
Resource Type:: Masters Thesis
Full Text:: Effects on the Thermal Stability and Activity of Soil Enzymes in Whole Soil and Aggregates. Abstract

ScholarsArchive@OSU

Soil fertility investigations on soil solution composition and nutrition of sweet corn and onions

Incinerated sewage sludge use as a soil amendment for sweet corn (Zea mays L.)

Physiological effects of water stress on young corn plants

Cover crops and biochemical functional diversity in relation to nitrogen availability in soil

Estimating plant-available nitrogen release from manures, composts, and crop residues

Nitrogen mineralization from organic amendments during the second year following application

Winter cover cropping effects on integrative biological indicators of soil quality

Temperature and water potential effects on physiological functions of sudangrass (Sorghum vulgare var. Piper)

Effects of green manures on verticillium wilt of potatoes and on soil properties related to disease suppression

Field management effects on the thermal stability and activity of soil enzymes in whole soil and aggregates

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