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Articles 14431 - 14460 of 14813
Full-Text Articles in Earth Sciences
Fallow Re-Assessment - Wheat Variety Investigations- Root Growth And Moisture Use, D Tennant
Fallow Re-Assessment - Wheat Variety Investigations- Root Growth And Moisture Use, D Tennant
Experimental Summaries - Plant Research
This report summarises progress and data available for the following investigations - Fallow Re-assessment - 72M29. Wheat Variety Investigations - Root Growth and Moisture Use. Location: Wongan Hills Research Station. Merredin Research Station.
Lupin Agronomy: Time Of Planting, Seeding Rate And Variety In A Long Season Area., M. W. Perry
Lupin Agronomy: Time Of Planting, Seeding Rate And Variety In A Long Season Area., M. W. Perry
Experimental Summaries - Plant Research
To evaluate lupin varieties and agronomic practices in a long season district using a factorial experimental design. 74A16a Location - Warriup 57 km E. of .Albany. 74A16b Green Range, 70 km E. of Albany. Time of Planting (4) Seeding Rates (4) Varieties (4) Fertiliser.
Pesticide Effects In A Simulated Soil Ecosystem, Raymond J. Samp
Pesticide Effects In A Simulated Soil Ecosystem, Raymond J. Samp
Masters Theses
The screening of pesticides to determine which were most inhibitory to bacteria was accomplished by testing the effects of 10 pesticides on 9 different organisms using the disk assay method. Results showed that Gram positive bacteria were more sensitive to all pesticides tested than were the Gram negative bacteria. In addition, the hormone herbicides were found to be the most inhibitory to these bacteria and 2,4-D (2,4-dichlorophenoxyacetic acid), a hormone herbicide, was chosen for subsequent in vivo studies.
A soil perfusion apparatus was used to determine the effects of 2,4-D in a typical soil ecosystem. Bacterial plate counts and nutrient …
Fisheries Report No 13 - Results Of A Biological Survey Of The Shire Of Kent, Western Australia, N. L. Mckenzie
Fisheries Report No 13 - Results Of A Biological Survey Of The Shire Of Kent, Western Australia, N. L. Mckenzie
Fisheries Research Reports
The Department of Fisheries and Fauna is responsible for the conservation of the native fauna in Western Australia. The main approach to this problem has been the creation of reserves for "The Conservation of Flora and Fauna". These reserves, known as "Wildlife Sanctuaries", are controlled by the Western Australian Wild Life Authority - a Statutory Authority serviced by the Department.
The object of the acquisition programme is to develop a reserve system which will include, as far as possible, a full and permanent cross-section of the State's native floral and faunal assemblages and, at the same time, provide for the …
Inventory Of Lake Studies In Maine, Charles F. Wallace Jr., James M. Strunk
Inventory Of Lake Studies In Maine, Charles F. Wallace Jr., James M. Strunk
Maine Collection
Inventory of Lake Studies in Maine
By Charles F. Wallace, Jr. and James M. Strunk
State Planning Office, Water Resources Planning Division, July 1973.
"Printed under Appropriation Number 4248.5 and financially assisted by planning grants from the United States Water Resources Council Title III funds."
Contents: Introduction / Investigating Agencies / Federal Agencies / State Agencies / Regional Planning Commissions and Economic Development Districts / Maine Colleges and Universities / Private / Other Private / Other / Appendices
Predicting Nitrogen Transformations And Ammonia Volatilization In Warm Desert Soils, G. R. Dutt
Predicting Nitrogen Transformations And Ammonia Volatilization In Warm Desert Soils, G. R. Dutt
Memorandum
No abstract provided.
Nitrogen And Carbon Flux In A Soil-Vegetation Complex In The Desert Biome, D. B. Porcella, J. E. Fletcher, D. L. Sorensen, G. C. Pidge, A. Dogan
Nitrogen And Carbon Flux In A Soil-Vegetation Complex In The Desert Biome, D. B. Porcella, J. E. Fletcher, D. L. Sorensen, G. C. Pidge, A. Dogan
Memorandum
No abstract provided.
Soil As A Factor In Modelling The Phosphorus Cycle In The Desert Ecosystem, J. J. Jurinak, R. A. Griffin
Soil As A Factor In Modelling The Phosphorus Cycle In The Desert Ecosystem, J. J. Jurinak, R. A. Griffin
Memorandum
No abstract provided.
Gaseous Losses Of Nitrogen From The Soil Of Semi-Arid Regions, T. C. Tucker, R. L. Westerman
Gaseous Losses Of Nitrogen From The Soil Of Semi-Arid Regions, T. C. Tucker, R. L. Westerman
Memorandum
No abstract provided.
Seed Reserves Of Desert Soils, Stuart Childs, David W. Goodall
Seed Reserves Of Desert Soils, Stuart Childs, David W. Goodall
Memorandum
No abstract provided.
Distillation-Condensation Of Water And Nutrient Movement In A Desert Ecosystem, N. Stark
Distillation-Condensation Of Water And Nutrient Movement In A Desert Ecosystem, N. Stark
Memorandum
No abstract provided.
Decomposition And Mineralization In An Artemisia Tridentata Community In Northern Nevada, P. L. Comanor, D. C. Prusso
Decomposition And Mineralization In An Artemisia Tridentata Community In Northern Nevada, P. L. Comanor, D. C. Prusso
Memorandum
No abstract provided.
Proteolytic Activity Of Soil Microorganisms, Robert T. O'Brien
Proteolytic Activity Of Soil Microorganisms, Robert T. O'Brien
Memorandum
No abstract provided.
Bromegrass Productivity In Relation To Precipitation, Shrub Canopy Cover And Soil Nitrogen Content, Lawrence G. Kline
Bromegrass Productivity In Relation To Precipitation, Shrub Canopy Cover And Soil Nitrogen Content, Lawrence G. Kline
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
In seasons of above normal precipitation, populations of annual weedy species increase in great abundance in semi-arid desert plant communities. These increases in biomass tie up a considerable portion of the available nitrogen of such ecosystems and may depress subsequent annual grass germination.
A big sagebrush-annual bromegrass plant community was irrigated to simulate a spring growth period of abundant precipitation amenable to annual bromegras s productivity. Productivity and nitrogen content parameters were monitored throughout the spring and summer to evaluate the short and potential long term effects of this seasonal increase in "precipitation".
Irrigation increased annual bromegrass productivity almost 50 …
Demographic Studies Of Sagebrush Insects As Functions Of Various Environmental Factors, T. H. Hsiao, R. L. Kirkland
Demographic Studies Of Sagebrush Insects As Functions Of Various Environmental Factors, T. H. Hsiao, R. L. Kirkland
Memorandum
No abstract provided.
Distribution Of Mictroorganisms In Desert Soil, A.T. Vollmer, F. Au, S.A. Bamberg
Distribution Of Mictroorganisms In Desert Soil, A.T. Vollmer, F. Au, S.A. Bamberg
Memorandum
No abstract provided.
Terrestrial Models: Soil Processes (Versions I, Ii, Iii), J. Radford
Terrestrial Models: Soil Processes (Versions I, Ii, Iii), J. Radford
Memorandum
No abstract provided.
Gaseous Losses Of Nitrogen From The Soil Of Semi-Arid Regions, T.C. Tucker, R.L. Westerman
Gaseous Losses Of Nitrogen From The Soil Of Semi-Arid Regions, T.C. Tucker, R.L. Westerman
Memorandum
No abstract provided.
Population Studies Of The Desert Cottontail (Sylvilagus Auduboni) And Black-Tailed Jackrabbit (Lepus Californicus) In The Sonoran Desert, C.R. Hungerford, C.H. Lowe, R.L. Madsen
Population Studies Of The Desert Cottontail (Sylvilagus Auduboni) And Black-Tailed Jackrabbit (Lepus Californicus) In The Sonoran Desert, C.R. Hungerford, C.H. Lowe, R.L. Madsen
Memorandum
No abstract provided.
The Role Of Algae In Crust Formation And Nitrogen Cycling In Desert Soils, R I. Lynn, R E. Cameron
The Role Of Algae In Crust Formation And Nitrogen Cycling In Desert Soils, R I. Lynn, R E. Cameron
Memorandum
No abstract provided.
Special Purpose Models, D. Wilkin
Evaluation Of Critical Soil Properties Needed To Predict Soil Water Flow Under Desert Conditions, J Letey Jr, G R. Mehuys, L V. Weeks
Evaluation Of Critical Soil Properties Needed To Predict Soil Water Flow Under Desert Conditions, J Letey Jr, G R. Mehuys, L V. Weeks
Memorandum
No abstract provided.
Pine Valley Validation Site, C.D. Jorgensen, G. Richins
Pine Valley Validation Site, C.D. Jorgensen, G. Richins
Memorandum
No abstract provided.
Evaluation Of Critical Soil Properties Needed To Predict Soil Water Flow Under Desert Conditions, G. R. Mehuys, L. H. Stolzy, J. Letey Jr., L. V. Weeks
Evaluation Of Critical Soil Properties Needed To Predict Soil Water Flow Under Desert Conditions, G. R. Mehuys, L. H. Stolzy, J. Letey Jr., L. V. Weeks
Memorandum
No abstract provided.
Annual Nutrient And Energy Intake Of The Desert Cottontail, Sylvilagus Auduboni, Under Natural Conditions, H G. Reynolds, F. J. Turkowski, R. M. Chew
Annual Nutrient And Energy Intake Of The Desert Cottontail, Sylvilagus Auduboni, Under Natural Conditions, H G. Reynolds, F. J. Turkowski, R. M. Chew
Memorandum
No abstract provided.
Reproduction And Survivorship Of The Lizard, Uta Stansburiana, And The Effects Of Winter Rainfall, Density And Predation On These Processes, F. B. Turner, P. A. Medica, D. D. Smith
Reproduction And Survivorship Of The Lizard, Uta Stansburiana, And The Effects Of Winter Rainfall, Density And Predation On These Processes, F. B. Turner, P. A. Medica, D. D. Smith
Memorandum
No abstract provided.
Jornada Validation Site Report, Walter G. Whitford
Consumption Of Larrea By Chewing Insects, F. G. Werner, A. R. Olsen
Consumption Of Larrea By Chewing Insects, F. G. Werner, A. R. Olsen
Memorandum
No abstract provided.
Tucson Validation Sites Report, John L. Thames
Rock Valley Validation Site Report, Frederick B. Turner
Rock Valley Validation Site Report, Frederick B. Turner
Memorandum
No abstract provided.