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- Kentucky Alfalfa and Stored Forage Conference (6)
- Journal of the Department of Agriculture, Western Australia, Series 4 (4)
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (2)
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Articles 1 - 30 of 112
Full-Text Articles in Physical Sciences and Mathematics
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.
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 …
Determining Pesticide And Nitrate Levels In Spring Water In Northwest Arkansas, T. L. Lavy, B. A. Dehart, John D. Mattice
Determining Pesticide And Nitrate Levels In Spring Water In Northwest Arkansas, T. L. Lavy, B. A. Dehart, John D. Mattice
Technical Reports
Occurrences of pesticides in our nations ground water are on the rise. As states become aware of this problem and begin monitoring programs, incidence of contamination will probably increase. Since the problem of pesticides in groundwater is relatively new, little research has centered on the fate of pesticides after they reach the groundwater environment. In Northwest Arkansas efforts to monitor groundwater for pesticides have been small. Twenty-five springs in Northwest Arkansas were sampled in the fall of 1988, and spring of 1989. Analysis for atrazine, alachlor, metolachlor, diuron, and simazine in spring water was preformed using gas liquid chromatography and …
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 …
Presentation Of Verified Algal Taxa As Reference Sources, Richard L. Meyer
Presentation Of Verified Algal Taxa As Reference Sources, Richard L. Meyer
Technical Reports
A data base of the algae of Arkansas ecoregions has been established to describe the numerous taxa that occur within the aquatic ecosystems included in these regions. The organisms were identified with the aid of diverse literature from throughout the world. These sources are written in multiple languages and the living organisms had to be compared with outline or silhouette drawings. These illustrations may include shading, but none present the true color of the organism but only the characteristics of the descriptive source. Primary characteristics used to identify algae is based upon pigmentation of the plastid and the number and …
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 …
Minimizing The Potential For Groundwater Contamination From Agricultural Point Sources, Joseph H. Massey, Terry L. Lavy, John D. Mattice
Minimizing The Potential For Groundwater Contamination From Agricultural Point Sources, Joseph H. Massey, Terry L. Lavy, John D. Mattice
Technical Reports
An activated charcoal filtration unit was designed to remove pesticides from leftover pesticide solutions and rinsates generated under farm-like conditions. The system, fabricated for less than $1400 using readily available components, effectively removed the pesticides atrazine, benomyl, carbaryl, fluometuron, metolachlor, and trifluralin from wastewater generated on the University of Arkansas Agronomy Farm located in Fayetteville, AR. A total of 2253 L of wastewater were treated using the system. Of these 1768 L were generated from washing out the spray tank (rinsates) while 485 L stemmed from leftover pesticide solutions that were mixed, but not applied. Typical initial pesticide concentrations in …
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. …
Soil Temperature Influence On Water Use And Yield Under Variable Irrigation, Jon M. Wraith
Soil Temperature Influence On Water Use And Yield Under Variable Irrigation, Jon M. Wraith
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The need for efficient use of water resources has increased the importance of optimum soil water usage in agricultural systems. Soil temperature has been shown to be important in influencing the early development of many plant species. Many agricultural regions have suboptimal soil temperature regimes for plant growth, and some cultural practices have been shown to reduce near-surface soil temperatures. The seasonal influence of soil temperature on soil water extraction and aboveground and belowground plant growth under variable irrigation was investigated at the USU Greenville Farm in Logan, UT. Soil surface mulches and buried heat cables were used to modify …
Root Exploitation Of Fertile Soil Microsites, Robert B. Jackson
Root Exploitation Of Fertile Soil Microsites, Robert B. Jackson
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Root exploitation of enriched soil microsites was examined for the tussock grasses Agropyron desertorum and Agropyron spicatum and the shrub Artemisia tridentata. Two mechanisms of exploitation of the microsites were examined: root proliferation and changes in nutrient uptake capacity. One day after nutrient solution was applied to small soil patches, the mean relative growth rate of Agropyron desertorum roots in enriched patches was two to four times greater than for roots of the same plants in soil patches treated with distilled water. This rapid and striking root proliferation occurred in response to N-P-K enrichment as well as to P or …
What Happened With No-Till In 1988, Morris J. Bitzer, Robert L. Blevins, Wilbur Frye
What Happened With No-Till In 1988, Morris J. Bitzer, Robert L. Blevins, Wilbur Frye
Soil Science News and Views
No-till (NT) received some bad publicity in 1988 in Kentucky and throughout the Midwest,especially during the early part of last summer's drought. Some farmers found that corn yields were lower with NT than with conventional tillage (CT). However, others observed that the NT corn recovered faster and grew better than CT corn following the rains. Data from Kentucky and Nebraska tend to support this latter observation.
Putting A Top Quality Forage Program Together On Your Farm, Richard Brown Phillips
Putting A Top Quality Forage Program Together On Your Farm, Richard Brown Phillips
Kentucky Alfalfa and Stored Forage Conference
You know most of us here, and I am including myself, really don't have a super talent for predicting the future with a great deal of consistency, however, our interest doesn't have to be in predicting, but rather, just primarily in considering potentials and opportunities in the future. What do you say, let's take a little time to look at some of the opportunities in the forage industry. The nation's No. 1 cash crop.
Sampling And Testing For Quality, Buddy Sims
Sampling And Testing For Quality, Buddy Sims
Kentucky Alfalfa and Stored Forage Conference
The Kentucky Department of Agriculture is preparing to implement a unique and far-reaching program to provide forage producers with a detailed analysis of the quality of hay.
This program was mandated by the Kentucky legislature in 1988 as a means to enhance the marketing of Kentucky hay. A statewide hay testing and marketing program was recommended by a special legislative task force report issued in 1987 and has the endorsement of a number of agricultural organizations, including the University of Kentucky College of Agriculture and Kentucky Farm Bureau.
Marketing Kentucky Hay — A Reality, J. Kenneth Evans
Marketing Kentucky Hay — A Reality, J. Kenneth Evans
Kentucky Alfalfa and Stored Forage Conference
As I write this in early December, Kentucky does not yet have a system for marketing hay. The above title reflects an attitude which positively expects a marketing system to be in place by the 1989 season. Many details of such a system have been discussed, some decisions have already been made and more will be made by the time you read this. Literally hundreds of decisions need to be made before hay is marketed in 1989. since these decisions will be made by a group of people (a producer Board of Directors and the KY Department of Agriculture personnel) …
Equipment And Chemical Advances In Harvesting And Storing Quality Hay, Michael Collins
Equipment And Chemical Advances In Harvesting And Storing Quality Hay, Michael Collins
Kentucky Alfalfa and Stored Forage Conference
In some areas of the country, many producers have gone to silage or haylage for storage of a portion of their forage. However, hay remains the most popular storage method for forage. Hay stores well for long periods and is better suited to cash sale and transportation over substantial distances than silage. Mechanical conditioning, which gained acceptance during the 1950's is probably still the greatest single change in hay harvesting and storage technology during this century. However, a number of other noteworthy changes and innovations have occurred in recent years which have helped to reduce the extent of losses during …
Alfalfa Hay: Quality Makes The Difference, Garry D. Lacefield
Alfalfa Hay: Quality Makes The Difference, Garry D. Lacefield
Kentucky Alfalfa and Stored Forage Conference
Alfalfa "Queen of the Forage Crops" is one of t.he most important forage legumes grown in the U.S. It can be grown over a wide range of soil and climatic conditions, it has the highest yield potential and the highest feeding values of all adapted perennial forage legumes. Alfalfa is a versatile crop which can be used for pasture, hay, silage, green-chop, soil improvements and human consumption (sprouts, etc.).
Foreword [1989], Garry D. Lacefield
Foreword [1989], Garry D. Lacefield
Kentucky Alfalfa and Stored Forage Conference
This is the front matter of the proceedings.
Tb134: A Laboratory Study To Assess Methods For Predicting Ph Change Of Ash Amended Forest Soils, Yvonne L. Unger, Ivan J. Fernandez
Tb134: A Laboratory Study To Assess Methods For Predicting Ph Change Of Ash Amended Forest Soils, Yvonne L. Unger, Ivan J. Fernandez
Technical Bulletins
The objective of this study was to compare several commonly used lime requirement tests and soil capacity factors for their ability to predict pH change following wood-ash amendment. The ability to predict pH change is important because it is one of the criteria used to prescribe rates of ash amendment to forest soils.
Assessment Of Land Capability For On-Site Septic Tank Effluent Disposal, M R. Wells
Assessment Of Land Capability For On-Site Septic Tank Effluent Disposal, M R. Wells
Resource management technical reports
No abstract provided.
Report On The Application Of An Evapotranspiration Equation To The Waca Dome, P R. Scott
Report On The Application Of An Evapotranspiration Equation To The Waca Dome, P R. Scott
Resource management technical reports
No abstract provided.
Interaction Of Rhizoctonia Root Rot On Wheat With Post Emergence Herbicides, W Macleod
Interaction Of Rhizoctonia Root Rot On Wheat With Post Emergence Herbicides, W Macleod
Experimental Summaries - Plant Research
Interaction of Rhizoctonia root rot on wheat with post emergence herbicides, 88E30. Location, aim, treatment, method, results, table1. Take-all inoculum levels in a ryegrass sward after treatment with hoegrass. 88MD30. Location, aim, treatment, method, results, Interaction of Pleiochaeta root rot on lupins with Simazine®, 88ME64, 88WH335, 88ME64. Location, aim, treatment, method, results, tables 1 to 8.
Glean Logan Comparisons, R Madrin, J Buckley
Glean Logan Comparisons, R Madrin, J Buckley
Experimental Summaries - Plant Research
Rates and timing of application, 89ME79, 89NO72, 89WH81, 89WH75. Hoegrass tankmixes, Brodal, Glean, 89M58. Grasp efficacy, rates and timing of application to wheat, 89NO71. Grasp tolerance, rates and timing of application to wheat, 89A17, and 89WH62. Silvergrass control in pasture. Simazine, Pursuit, 89KA67, 89LG60, 89NO73. Marshmallow control in crop, 89NO98. Glyphosate formulation comparisons, 89WH78, 89A27. Diclofop-methyl formulation comparisons, 89A28. Pursuit on pasture, rate and additives, 89LG61, 89LG60, 89LG58, 89A26. Selective grass controllers with Simazine on pasture 89M64, 89LG59. Cape tulip control in pasture, 89NA73, 89NA72.
Tolerance Of Lupins To Simazine, K E. Oliver
Tolerance Of Lupins To Simazine, K E. Oliver
Experimental Summaries - Plant Research
Tolerance of lupins to triazine herbicides, 89GL21, 89GL24. Application of atrazine post emergence of the soil, 89GL22, 89GL25. Application of atrazine post emergence to the foliage, 89GL23, 89GL26. Trials with mutated lupin population, 89WH72, 89MC32.
Harvest Index Of Lupins, Direct Drilling On Sandplain Soils., Rob Delane, Carmel Schmidt, Glenn Adam
Harvest Index Of Lupins, Direct Drilling On Sandplain Soils., Rob Delane, Carmel Schmidt, Glenn Adam
Experimental Summaries - Plant Research
Chemicals to improve pod setting in Lupins (Small plots), 89C23, 89GE74,
Chemicals to improve pod setting in Lupins (Large plots) 89GE72, 89GE75.
Replicated Single Row Evaluation., C. M. Saunders
Replicated Single Row Evaluation., C. M. Saunders
Experimental Summaries - Plant Research
Trial 89AB12
Great Southern Agricultural Institute - Paddock B15
This trial was of similar design to the single row evaluation, except four replications and pesticide treatments were also included.
However the trial had to be abandoned due to severe phytotoxic responses seen in the medics due to repeated spraying of 'Lorsban' (used at recommended rates).
Intended to repeat this work in 1990, bulk seed where possible and to eventually assess these lines, under such conditions, in large plots.
Nitrogenous Fertilizers For Cereals., M. G. Mason
Nitrogenous Fertilizers For Cereals., M. G. Mason
Experimental Summaries - Plant Research
Trial 87CI
Rates of nitrogen on continuous wheat on heavier land.
Location: North Mullewa Research Station.
Trial 80WH3, 80MI, 80N3.
Effects of Agras No. 1 on soil pH and wheat yield.
Location: Wongan Hills Research Station, Merredin Research Station, Newdegate Research Station.
Trial 78WH3
Effect of stubble treatment on nitrogen fertilizer requirement.
Location: Wongan Hills Research Station.
Trial 89WH18
Effect of banding sources of nitrogen on grain yield.
Location: Wongan Hills Research Station.
Trial 89M2 (a)
Nitrification of sources of nitrogen on heavy soil.
Location: Merredin Research Station.
Trial 89M2 (b)
Nitrification of sources of nitrogen on heavy soil.
Location: …