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Articles 10171 - 10200 of 11978
Full-Text Articles in Physical Sciences and Mathematics
Sand And Gravel Deposits In Nebraska, R. R. Burchett
Sand And Gravel Deposits In Nebraska, R. R. Burchett
Conservation and Survey Division
No abstract provided.
Sandstone Deposits In Nebraska, R. R. Burchett
Sandstone Deposits In Nebraska, R. R. Burchett
Conservation and Survey Division
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
No abstract provided.
Topographic Maps, 7.5-Minute Series, R. R. Burchett
Topographic Maps, 7.5-Minute Series, R. R. Burchett
Conservation and Survey Division
No abstract provided.
Volcanic Ash Deposits In Nebraska, R. R. Burchett
Volcanic Ash Deposits In Nebraska, R. R. Burchett
Conservation and Survey Division
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
No abstract provided.
Earthquakes In Nebraska, Second Edition (Expanded), R. R. Burchett
Earthquakes In Nebraska, Second Edition (Expanded), R. R. Burchett
Conservation and Survey Division
An earthquake is the result of an adjustment of the surface of the earth caused by a release of energy in the earth's crust. Faulting is one of many causes of earthquakes.
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
No abstract provided.
Nebraska Natural Resource District Boundaries
Nebraska Natural Resource District Boundaries
Conservation and Survey Division
No abstract provided.
Nebraska Map Of Counties, Conservation Survey Division
Nebraska Map Of Counties, Conservation Survey Division
Conservation and Survey Division
No abstract provided.
Location Of Registered Irrigation Wells In Nebraska As Of 1990.
Location Of Registered Irrigation Wells In Nebraska As Of 1990.
Conservation and Survey Division
No abstract provided.
The Fourth Of July Depends Upon Minerals, R. R. Burchett
The Fourth Of July Depends Upon Minerals, R. R. Burchett
Conservation and Survey Division
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
No abstract provided.
Richardson County Test Hole Logs, Raymond R. Burchett, Frank A. Smith
Richardson County Test Hole Logs, Raymond R. Burchett, Frank A. Smith
Conservation and Survey Division
No abstract provided.
Annual Installation Of Irrigation Wells In Nebraska Through 1989, Conservation Survey Division
Annual Installation Of Irrigation Wells In Nebraska Through 1989, Conservation Survey Division
Conservation and Survey Division
No abstract provided.
Annual Departures From Average Annual Precipitation In Nebraska, 1850-1989, Conservation Survey Division
Annual Departures From Average Annual Precipitation In Nebraska, 1850-1989, Conservation Survey Division
Conservation and Survey Division
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
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
No abstract provided.
An Introduction To The Soils Of The Three Springs Advisory District, T C. Stoneman, National Soil Conservation Program (Australia)
An Introduction To The Soils Of The Three Springs Advisory District, T C. Stoneman, National Soil Conservation Program (Australia)
Bulletins 4000 -
With descriptions, illustrations and notes on seven common soils.
An Introduction To The Soils Of The Moora Advisory District, T C. Stoneman, National Soil Conservation Program (Australia)
An Introduction To The Soils Of The Moora Advisory District, T C. Stoneman, National Soil Conservation Program (Australia)
Bulletins 4000 -
With descriptions, illustrations and notes on eight common soils.
An Introduction To The Soils Of The Lake Grace Advisory District, T C. Stoneman, National Soil Conservation Program (Australia)
An Introduction To The Soils Of The Lake Grace Advisory District, T C. Stoneman, National Soil Conservation Program (Australia)
Bulletins 4000 -
With descriptions, illustrations and notes on eight common soils.
Groundwater Levels In Nebraska, 1988, Michael J. Ellis, Gregory V. Steele, Perry B. Wigley
Groundwater Levels In Nebraska, 1988, Michael J. Ellis, Gregory V. Steele, Perry B. Wigley
Conservation and Survey Division
No abstract provided.
North Mullewa Research Station "Daisy Downs" Field Day, Peter Nelson
North Mullewa Research Station "Daisy Downs" Field Day, Peter Nelson
All other publications
NMRS (165 ha) was leased from "Daisy Downs" (Manager Mr Ken Thompson) in 1985. NMRS was established in response to famer and local goverment demand for more research on the shallow, heavy soils in a low rainfall area. It is run along similar lines to the East Chapman Research Station (ECRS), with large rotation paddocks (42 ha) set up to study farming systems the remainder of the leased area being used for general experimental purposes.
Winchester Sub-Catchment Management Plan, Vivian T. Read
Winchester Sub-Catchment Management Plan, Vivian T. Read
Soil conservation survey collection
The 590 Ha Winchester sub-catchment has no apparent external drainage. Groundwater levels are rising causing site specific problems. Wind erosion has severely affected some areas.The objective of this report is to provide a sub-catchment management plan that is based on sustainable agricultural systems and a hydrological equilibrium. The recommendations aim to meet this objective in the long term. Recommendations to achieve short term results are considered separately. These measures have relatively high installation and maintenance costs. They should be considered as interim management methods until the recommendations for long-term control become effective (perhaps 3 - 5 years after implementation).
Forage Shrubs And Grasses For Revegetating Saltland, H V. Runciman, C V. Malcolm
Forage Shrubs And Grasses For Revegetating Saltland, H V. Runciman, C V. Malcolm
Bulletins 4000 -
Salt tolerant shrubs and grasses are used for forage production from salt-affected farmland. This Bulletin is designed to assist in recognition of the important species in Western Australia and to provide information on their use. The species listed have more forage value than some natural indicators and colonizers of saltland, such as Mediterranean barley grass (Hordeum geniculatum), ice plant (Mesembryanthemum spp.), mallee lovegrass (Eragrostisdielsii), salt spurry (Spergularia spp.), curly ryegrass (Parapholis incurva) and beard grass (Polypogon monspeliensis). Some of the plants are also useful for rehabilitating degraded rangeland and mine …
Tb136: Methodology Development For Study Of Root Influences On Nitrogen Mineralization, M. S. Erich
Tb136: Methodology Development For Study Of Root Influences On Nitrogen Mineralization, M. S. Erich
Technical Bulletins
The current study was designed to explore a particular set of methodologies for addressing the question of whether plant root growth affects the rate of N mineralization. Specifically, the experimental design involved supplying plants with only organic N as manure and no nitrate. A highly sandy growing medium was used in an attempt to prevent overly wet conditions in the pots. In addition, instead of only comparing planted and unplanted pots, four different planting densities (0, 1, 2, 3 plants per pot ) were used as treatments.
Analysis, Design And Implementation Of A Pilot Relational Database For Groundwater In The State Of Arkansas, Ray Hashemi-Nassab
Analysis, Design And Implementation Of A Pilot Relational Database For Groundwater In The State Of Arkansas, Ray Hashemi-Nassab
Technical Reports
There are several agencies within the state of Arkansas dealing with underground water. Each agency has its own database that acts as an isolated depository of data. Practically, the communication among these databases is zero, not because there is no need for it, but because the communication is very difficult if not impossible. Data redundancy, inconsistency, and lack of integrity is overwhelming. In this study we have addressed the problem of lack of unity among the databases belonging to different agencies. Also, as an alternative we have developed a relational database. In this database the data was normalized to 4NF. …
An Expert System For Managing An Activated Sludge Wastewater Treatment Plant, Sandra C. Parker, David G. Parker
An Expert System For Managing An Activated Sludge Wastewater Treatment Plant, Sandra C. Parker, David G. Parker
Technical Reports
A diagnostic expert system for an activated sludge wastewater treatment plant has been designed to link with a relational database management system for obtaining operational parameter values that are used by the program to diagnose operational problems that may occur in the process. The problems that are dealt with by the system are bulking sludge, floating sludge, defloculation, ashing, solids washout, foaming problems, high soluble effluent BOD and problems in the aeration system. The link between the expert system and the database is accomplished via programming that is initiated by the expert system program. The operator of the system is …
Improving Irrigation Scheduling And Water Use Efficiency In Cotton, Derrick M. Oosterhuis
Improving Irrigation Scheduling And Water Use Efficiency In Cotton, Derrick M. Oosterhuis
Technical Reports
Cotton (Gossypium hirsutum L) is an important crop in the southern United States. The crop is grown in both irrigated and rainfed situations and is seldom free from periods of water shortages at some stage during the season. In recent years the need for consistency in yields and a stable cash flow has resulted in a rapid expansion in the number of irrigated acres of cotton in the Mississippi Delta. Irrigation research has, however, not kept pace with this expansion. This project represents a start at meeting this urgent need. The influence of weather patterns necessitates that these studies be …
Simulation Of The Fate Of Nitrogen From The Disposal Of Poultry Litter, H. D. Scott
Simulation Of The Fate Of Nitrogen From The Disposal Of Poultry Litter, H. D. Scott
Technical Reports
A PC/AT computer model was developed to simulate the transport of water, nitrate and ammonia in the soil profile after an application of poultry litter to pasture. The model was written using FORTRAN 77 compiler and can be used on any IBM type compatible computer with a math coprocessor. Poultry litter has been shown to be a potential source of plant nutrients, but mismanagement can result in nitrate pollution of the surface and groundwater. The model is composed of a main program, 11 subroutines and three subprograms. An example was shown of the flexibility and dynamic nature of the computer …