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Articles 241 - 270 of 285
Full-Text Articles in Earth Sciences
Pod Setting Of Lupins On The South Coast., M. Seymour
Pod Setting Of Lupins On The South Coast., M. Seymour
Experimental Summaries - Plant Research
Trial 90ES7
Lupin pod setting study.
To investigate the effect of time of sowing on the flowering and pod set of lupins, when grown in high rainfall/long growing season environments.
Long Term Minimum Tillage Investigations., R. J. Jarvis
Long Term Minimum Tillage Investigations., R. J. Jarvis
Experimental Summaries - Plant Research
Trial 77M13
Location: Merredin
This site was in wheat in 1975 and 1976 before the treatments commenced on continuous wheat in 1977.
77M56
Location: Merredin
Sited alongside 77M13 with the same paddock history. Commenced the wheat/pasture rotation after wheat in 1975 and 1976.
Trial 86M79
Chemical and cultivated fallow in a pasture/wheat rotation on heavy land.
Location: Merredin.
At Merredin on salmon gum/gimlet soil. Pasture treatments and soil moisture measurements were conducted in 1990. Wheat 1991.
Trial 87NA80, 81, 82, 83
Direct drilling with modified combines compared with cultivation for pasture/wheat rotations with grass control treatments in the pasture year. …
Rates Of Phosphorus And Potassium For Lupins On The South Coast,, M. Seymour
Rates Of Phosphorus And Potassium For Lupins On The South Coast,, M. Seymour
Experimental Summaries - Plant Research
Trial 90ES23
Phosphorus and potassium response of lupins in high rainfall areas.
Location: Neridup
To evaluate the response of lupins to Phosphorus and Potassium response of lupins in high rainfall areas.
Depth Of Placement And Rates Of Nitrogen For Lupins On The South Coast., M. Seymour
Depth Of Placement And Rates Of Nitrogen For Lupins On The South Coast., M. Seymour
Experimental Summaries - Plant Research
Trial 90E13
Starter nitrogen for lupins, rates x depth of placement.
To determine if the application of nitrogen at seeding will enable lupins to grow vigorously at the beginning of the season, and have better growth at flowering. Deep placement is used to reduce the effects of high nitrogen fertiliser on plant establishment.
Effect Of Pasture Species On Pasture Production And Following Cereal Yields On Heavy Textured Soils In Low Rainfall Areas. Regeneration Of Pasture Legume Cultivars On Low Rainfall Red Loam Soils., Bradley Nutt
Experimental Summaries - Plant Research
Trial 90GE17
Aphid tolerance evaluation in annual medics
Location: Tenindewa
Maturity and seed yields of annual medic lines with or with out aphid control using Pirmor.
Trial 90GE116
Evaluation of aphid tolerance in annual medics
Location: Tenindewa
Dry matter and seed yield of annual medic lines with and without aphid control using Pirmor.
Trial 90GE34
Effect of pasture species on pasture production and cereal yields on low rainfall red loams.
Location: North Mullewa Research Station, Morawa Agricultural School.
Regeneration of annual pasture cultivars on hardsetting red clay loams at North Mullewa and Morawa in 1989 and 1990.
Trial 88TS63
Effect …
Potassium Nutrition Of Lupins On The Sandplain Soils Of Western Australia., N. K. Edwards
Potassium Nutrition Of Lupins On The Sandplain Soils Of Western Australia., N. K. Edwards
Experimental Summaries - Plant Research
Aim: Develop recommendations for optimal potassium fertilizer application strategies for lupin production. Further develop soil and tissue test calibrations for lupin grain production.
Trial 89EC32
Potassium nutrition of lupins on sandplain soils.
Location: East Chapman Research Station.
Fertilizer: At sowing: 50 kg/ha DAP, 50 kg/ha Urea topdressed. 100 kg/ha Urea topdressed 10/7.
Trial 89GE90
Potassium nutrition of lupins on sandplain soils.
Location: Allanooka
Fertilizer: At sowing: 120 kg/ha Agras No. 1. 100 kg/ha Urea topdressed 10/7.
Trial 89MO51
Potassium nutrition of lupins on sandplain soils.
Location: Lancelin.
Fertilizer: At sowing: 110 kg/ha Agras No. 1. 60 kg/ha Urea topdressed 10/7. …
Evaluation Of The Genetic Resources Of T. Cherleri (Cupped Clover) And A Selected Number Of Lines Of T. Resupinatum On Shallow Acid, Granitic Soils Of The Western Austalian Wheatbelt., R. Snowball
Experimental Summaries - Plant Research
Trial 90ME68
To evaluate Cupped clover (T. cherleri) and Persian clover (T. resupinatum) on a shallow, granitic, infertile soil, which is reported to be suitable for the growth of Cupped clover, but too acid to support medics successfully and where subterranean clover struggles to persist.
Significant Rises And Declines In Nebraska Groundwater Levels (From Pre-Development As Of Fall 1989)/Registered Irrigation Wells In Nebraska (As Of January 1, 1990), Mark Burbach
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Drying Out Wet Basements, Mark S. Kuzila
Drying Out Wet Basements, Mark S. Kuzila
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Significant Rises And Declines In Nebraska Groundwater Levels (From Pre-Development As Of Fall 1989)/Registered Irrigation Wells In Nebraska (As Of January 1, 1990), Mark Burbach
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Significant Rises And Declines In Nebraska Groundwater Levels (From Pre-Development As Of Fall 1988) /Registered Irrigation Wells In Nebraska (As Of January 1, 1989), Conservation Survey Division
Significant Rises And Declines In Nebraska Groundwater Levels (From Pre-Development As Of Fall 1988) /Registered Irrigation Wells In Nebraska (As Of January 1, 1989), Conservation Survey Division
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
35th Annual Midwest Groundwater Conference Program With Abstracts, P. B. Wigley, K. E. Stork, D. C. Gosselin
35th Annual Midwest Groundwater Conference Program With Abstracts, P. B. Wigley, K. E. Stork, D. C. Gosselin
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Nebraska Natural Resource District Boundaries
Nebraska Natural Resource District Boundaries
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Nebraska Map Of Counties, Conservation Survey Division
Nebraska Map Of Counties, Conservation Survey Division
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Annual Report Of Nebraska-1990, Karl E. Starch, Raymond R. Burchett
Annual Report Of Nebraska-1990, Karl E. Starch, Raymond R. Burchett
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Groundwater Levels In Nebraska, 1989, Michael J. Ellis, Gregory V. Steele, Perry B. Wigley
Groundwater Levels In Nebraska, 1989, Michael J. Ellis, Gregory V. Steele, Perry B. Wigley
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Resource Notes-Academic Year 1989-90
Resource Notes-Academic Year 1989-90
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Diatomaceous Earth Deposits In Nebraska, R. R. Burchett
Diatomaceous Earth Deposits In Nebraska, R. R. Burchett
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Gypsum Deposits In Nebraska, R. R. Burchett
Gypsum Deposits In Nebraska, R. R. Burchett
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Limestone Deposits In Nebraska, R. R. Burchett
Limestone Deposits In Nebraska, R. R. Burchett
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
The Permian System In Nebraska, R. R. Burchett
The Permian System In Nebraska, R. R. Burchett
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Sand And Gravel Deposits In Nebraska, R. R. Burchett
Sand And Gravel Deposits In Nebraska, R. R. Burchett
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Topographic Maps, 1 X 2 Degree Series, R. R. Burchett
Topographic Maps, 1 X 2 Degree Series, R. R. Burchett
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Age Estimates And Uplift Rates For Late Pleistocene Marine Terraces' Southern Oregon Portion Of The Cascadia Forearc, Daniel R. Muhs, Harvey M. Kelsey, Gifford H. Miller, Geoge L. Kennedy, Joseph F. Whelan, Galan W. Mcinelly
Age Estimates And Uplift Rates For Late Pleistocene Marine Terraces' Southern Oregon Portion Of The Cascadia Forearc, Daniel R. Muhs, Harvey M. Kelsey, Gifford H. Miller, Geoge L. Kennedy, Joseph F. Whelan, Galan W. Mcinelly
United States Geological Survey: Staff Publications
Marine terraces are prominent landforms along the southern Oregon coast, which forms part of the forearc region of the Cascadia subduction zone. Interest in the Cascadia subduction zone has increased because recent investigations have suggested that slip along plates at certain types of convergent margins is characteristically accompanied by large earthquakes. In addition, other investigations have suggested that convergent margins can be broadly classified by the magnitude of their uplift rates. With these hypotheses in mind, we generated new uranium series, amino acid, and stable isotope data for southern Oregon marine terrace fossils. These data, along with terrace elevations and …
Sedimentary Paleoenvironments Of Fossil Platyrrhine Localities, Miocene Pinturas Formation, Santa Cruz Province, Argentina, Thomas Bown, Claudio N. Larriestra
Sedimentary Paleoenvironments Of Fossil Platyrrhine Localities, Miocene Pinturas Formation, Santa Cruz Province, Argentina, Thomas Bown, Claudio N. Larriestra
United States Geological Survey: Staff Publications
The Pinturas Formation is a pyroclastic and epiclastic aeolian deposit of Miocene age lying discordantly upon Jurassic rocks in the elevated Andean precordillera of northwest Santa Cruz Province, Argentina. The history of de\'elopment of the Pinturas Formation was significantly affected by the gradual, though sporadic, draping of this aeolian sediment across a profound, slowly filling paleotopography. The Pinturas depositional cycle consisted of: (1) minor aeolian deposition followed by soil formation, and (2) major aeolian deposition followed by intervals of regional erosion. Fluvial action seems to have been almost wholly confined to intraformational erosion, and two significant intraformational erosional unconformities divide …
Phytoplankton Dynamics In Three Rocky Mountain Lakes, Colorado, U.S.A., Diane M. Mcknight, Richard L. Smith, J. Platt Bradbury, Jill S. Baron, Sarah Spaulding
Phytoplankton Dynamics In Three Rocky Mountain Lakes, Colorado, U.S.A., Diane M. Mcknight, Richard L. Smith, J. Platt Bradbury, Jill S. Baron, Sarah Spaulding
United States Geological Survey: Staff Publications
In 1984 and 1985 seasonal changes in phytoplankton were studied in a system of three lakes in Loch Vale, Rocky Mountain National Park, Colorado. Three periods were evident: (1) A spring bloom, during snowmelt, of the planktonic diatom Asterionella Formosa, (2) a mid- summer period of minimal algal abundance, and (3) a fall bloom of the blue-green alga Oscillatoria limnetica. Seasonal phytoplankton dynamics in these lakes are controlled partially by the rapid flushing rate during snowmelt and the transport of phytoplankton from the highest lake to the lower lakes by the stream, Icy Brook. During snowmelt, the A. …
Water Quality Dynamics In Meltwaters Draining Peyto Glacier, Alberta, Christopher Bradley
Water Quality Dynamics In Meltwaters Draining Peyto Glacier, Alberta, Christopher Bradley
Theses and Dissertations (Comprehensive)
Variations in the quantity and quality of meltwaters draining Peyto Glacier, Alberta, are assessed to examine to what extent meltwater characteristics might be indicative of any distinctive source and routing of water through a glacierised drainage basin. Continuous monitoring of solute concentrations of the principle melt-stream, Peyto Creek, was undertaken for significant periods in 1982, 1984 and 1987, coupled with measurements of suspended sediment concentration at the glacier terminus. Discharge of meltwater was determined for periods in 1982 and 1987. Supplementary monitoring of hydrogen-ion variation and total solute concentration was undertaken at additional sites within the basin, at a stream …
Characteristic Discharge And Suspended-Sediment Relationships In Two Glacier-Fed Rivers In The Karakoram, Richard E.J. Kelly
Characteristic Discharge And Suspended-Sediment Relationships In Two Glacier-Fed Rivers In The Karakoram, Richard E.J. Kelly
Theses and Dissertations (Comprehensive)
The purpose of this thesis is to investigate relationships between meltwater flow and production and flushing of suspended-sediment beneath two alpine glaciers. During the ablation seasons of 1987 and 1988, discrete, hourly measurements were taken of discharge, stage, suspended-sediment concentration and electrical conductivity in two rivers draining catchments of the Bualtar and Batura Glaciers in the Karakoram, N. Pakistan. The discharge time series of the Bualtar River reveals that flow varies over a daily period of three to four weeks, at a diurnal level and over one to four hours. Over all three time scales, electrical conductivity is inversely proportional …
Bed Load Measurements: Nottawasaga River And Selected Tributaries, Ontario, Canada, Marylou B. Burkard
Bed Load Measurements: Nottawasaga River And Selected Tributaries, Ontario, Canada, Marylou B. Burkard
Theses and Dissertations (Comprehensive)
Between July, 1989 and March, 1990, bed load samples were taken from ten bridge sites on the Nottawasaga River and three of its tributaries. The Helley-Smith Sampler was used to collect bed load samples, the DH-48 Suspended Sediment sampler was used to sample the suspended load, and velocity estimates were obtained with a Marsh-McBirney Model 512M electromagnetic current meter. Results show that the Pine River, which is a tributary of the Nottawasaga River, had higher bed load transport rates than the Nottawasaga River. The other tributaries, Willow Creek and Boyne River, transported less. During the summer and fall, bed load …
The Effect Of Mid-Winter Snowmelt Events On Nitrate And Ammonium Concentration In The Unsaturated And Shallow Saturated Zones: A Case Study, Richard J. Elgood
The Effect Of Mid-Winter Snowmelt Events On Nitrate And Ammonium Concentration In The Unsaturated And Shallow Saturated Zones: A Case Study, Richard J. Elgood
Theses and Dissertations (Comprehensive)
During the period of December 19, 1987 to March 28, 1988, the unsaturated and shallow saturated groundwater zones under two agricultural land use sites, near Waterloo, Ontario, were investigated to determine the effect of snowmelt percolation on the groundwater quality. Periods of widely fluctuating temperatures and sporadic rain events produced large changes in snowpack water equivalence. The resulting infiltration of snowmelt significantly altered the extent of the saturated area and the concentration of N (nitrogen) ions in both the soil column and percolate water. An N flux from the vadose (unsaturated) zone to the shallow phreatic (saturated) zone, occurring in …