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1989

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Full-Text Articles in Physical Sciences and Mathematics

The Prairie Naturalist Volume 21, No.4 December 1989 Dec 1989

The Prairie Naturalist Volume 21, No.4 December 1989

The Prairie Naturalist

SMALL MAMMALS IN TALL-GRASS PRAIRIE: PATTERNS ASSOCIATED WITH GRAZING AND BURNING ▪ E. K. Clark, D. W. Kaufman, E. J. Finck, and G. A. Kaufman

BURROW DISTRIBUTION OF THIRTEEN-LINED GROUND SQUIRRELS IN RELATION TO TREE CANOPIES ▪ J. L. Koprowski 185

SPRING AND SUMMER PREY REMAINS COLLECTED FROM MALE MINK DENS IN SOUTHWESTERN MANITOBA ▪ . T. W. Arnold and E. K. Fritzell

BREEDING CANVASBACKS: A TEST OF A HABITAT MODEL ▪ D. H. Johnson, M. C. Hammond, T. L. McDonald, C. L. Nustad, and M. D. Schwartz

A CHECKLIST OF THE ANTS OF OKLAHOMA ▪ G. C. Wheeler and …


Introduction And Enhancement Of Vegetative Cover At Lake Mead, Jennifer S. Haley, Lisa K. Croft, Suzanne E. Leavitt, Larry J. Paulson Dec 1989

Introduction And Enhancement Of Vegetative Cover At Lake Mead, Jennifer S. Haley, Lisa K. Croft, Suzanne E. Leavitt, Larry J. Paulson

Publications (WR)

Studies done by the Nevada Department of Wildlife (NDOW) and the Arizona Fish and Game between 1978 and 1981 indicate that inadequate cover may be limiting the production and survival of largemouth bass at the Lake Mead National Recreation Area (LMNRA). As a result of these studies, NDOW initiated a contract in 1986 with the Lake Mead Research Center (LMRC) to investigate means of improving habitat for game fish by introducing natural and/or artificial cover.

During Phase I (1986-1987) of this contract, the shoreline of Lake Mead was surveyed for aquatic and terrestrial plant growth. Also during this time, submerged …


Frequency-Dependent Seed Dispersal By Ants Of Two Deciduous Forest Herbs, Brent H. Smith, Catherine E. De Rivera, Cara Lin Bridgman, John J. Woid Dec 1989

Frequency-Dependent Seed Dispersal By Ants Of Two Deciduous Forest Herbs, Brent H. Smith, Catherine E. De Rivera, Cara Lin Bridgman, John J. Woid

Environmental Science and Management Faculty Publications and Presentations

Two co—occurring deciduous forest myrmecochores, Asarum canadense and Jeffersonia diphylla, release their seeds at approximately the same time, and therefore potentially compete for ants as dispersers. Within a single woodlot, we placed seeds of both species inside a dense Jeffersonia population away from Asarum plants, inside a dense Asarum population away from Jeffersonia plants, and in a site where plants of neither species occurred. No preference was exhibited by ants where natural populations were absent. Preference at the other two sites was frequency dependent: ants preferred seeds of the introduced species. Species preferred by ants have higher seed and …


The Prairie Naturalist Volume 21, No.3 September 1989 Sep 1989

The Prairie Naturalist Volume 21, No.3 September 1989

The Prairie Naturalist

SEED DISPERSAL CHARACTERISTICS OF PLAINS SILVER SAGEBRUSH ▪ C. L. Wambolt, T. Walton, and R. S. White

ON THE TRAIL OF THE ANT, VEROMESSOR LOBOGNATHUS . ▪ G. C. Wheeler and J. Wheeler

LAND USE RELATIONSHIPS TO AVIAN CHOLERA OUTBREAKS IN THE NEBRASKA RAINWATER BASIN AREA ▪ B. J. Smith, K. F. Higgins, and C. F. Gritzner

INCIDENCE OF LEAD SHOT IN THE RAINWATER BASINS OF SOUTH CENTRAL NEBRASKA ▪ . D. W. Oates

REPRODUCTION, RECRUITMENT, AND SURVIVAL OF BROWN AND RAINBOW TROUT IN A PRAIRIE COTEAU STREAM ▪ C. L. Milewski and D. W. Willis

SIZE STRUCTURE AND CATCH …


The Prairie Naturalist Volume 21, No.2 June 1989 May 1989

The Prairie Naturalist Volume 21, No.2 June 1989

The Prairie Naturalist

THE MISSISSIPPI KITE IN THE ENVIRONMENTAL HISTORY OF THE SOUTHERN GREAT PLAINS ▪ E. G. Bolen and D. L. Flores

TAPE-RECORDED CHICK CALLS TO LOCATE GRAY PARTRIDGE NESTS ▪ J. P. Carroll

BORROW DISTRIBUTION OF THE THIRTEEN-LINED GROUND SQUIRREL IN GRAZED MIXED-GRASS PRAIRIE: EFFECT OF ARTIFICIAL HABITAT STRUCTURE ▪ D. W. Kaufman and G. A. Kaufman

PIPING PLOVERS NESTING AT NELSON RESERVOIR, MONTANA ▪ D. W. Prellwitz, T. A. Prellwitz, K. L. Stutzman, and J. W. Stutzman

CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA - 1988 ▪ R. N. Randall

CHANGING HABITATS IN THE PLATTE RIVER VALLEY OF NEBRASKA ▪ J. …


Modeling Forest Dynamics Based On Stand Level Resource Allocation, Geoffrey Candler Poole May 1989

Modeling Forest Dynamics Based On Stand Level Resource Allocation, Geoffrey Candler Poole

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

An ecologically based model of forest succession is presented. In the model, trees compete for a share of limited growth resources available from their environment. Competition is reflected by each tree's effect on the resource pool and is not explicitly modeled. Model parameters were fit to field data from subalpine forests of the Rocky Mountains. A technique for estimating model parameters from understory-tolerance rankings and silvical characteristics of each species is also presented. The model's output was consistent with our current understanding of forest dynamics. Emergent properties of the model also mimicked natural processes such as self-thinning, release, and maximum …


Using Computer Imaging To Assess Visual Impacts Of Forest Insect And Disease Pests, Daniel Rabin May 1989

Using Computer Imaging To Assess Visual Impacts Of Forest Insect And Disease Pests, Daniel Rabin

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Forest insect and disease pests alter the appearance of trees, thereby impacting visual resources. Because of the complexity of most forest landscapes, the degree of visual impact of pest-infested forest stands is difficult to quantify.

This paper describes a method of measuring visual impacts of pest-infested forest stands. Photographs of healthy Ponderosa pine trees were entered into a computer video-image-processing system. Using this system, images of trees were altered to simulate different degrees of infestation by limb rust, a forest pathogen.

The altered and unaltered images were shown to groups of observers who rated the scenes in terms of "scenic …


Root Exploitation Of Fertile Soil Microsites, Robert B. Jackson May 1989

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 …


The Prairie Naturalist Volume 21, No.1 March 1989 Mar 1989

The Prairie Naturalist Volume 21, No.1 March 1989

The Prairie Naturalist

WINTER RAPTOR USE OF THE PLATTE AND NORTH PLATTE RIVER VALLEYS IN SOUTH CENTRAL NEBRASKA ▪ G. R. Lingle

CHARACTERISTICS OF RUFFED GROUSE DRUMMING SITES IN THE TURTLE MOUNTAINS, NORTH DAKOTA ▪ J. W. Schulz, E. L. Bakke, and J. F. Gulke

USE OF A TRIBUTARY BY FISHES IN A GREAT PLAINS RIVER SYSTEM ▪ J. B. Smith and W. A. Hubert

PLANT AND ANIMAL COMMUNITY RESPONSES TO RESTORED IOW A WETLANDS ▪ T. G. LaGrange and J. J. Dinsmore

COLEOPTERA SPECIES INHABITING PRAIRIE WETLANDS OF THE COTTONWOOD LAKE AREA, STUTSMAN COUNTY, NORTH DAKOTA ▪ B. A. Hanson and G. …


Putting A Top Quality Forage Program Together On Your Farm, Richard Brown Phillips Feb 1989

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 Feb 1989

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 Feb 1989

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 Feb 1989

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 Feb 1989

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 Feb 1989

Foreword [1989], Garry D. Lacefield

Kentucky Alfalfa and Stored Forage Conference

This is the front matter of the proceedings.


The Development Of An Efficient Lupin Harvesting Front, E D. Blanchard Jan 1989

The Development Of An Efficient Lupin Harvesting Front, E D. Blanchard

Journal of the Department of Agriculture, Western Australia, Series 4

Harvest losses represent a significant reduction in lupin production and farm productivity.

Since 1984, the Department's Farm Machinery Research and Liaison Unit at the Dryland Research Institute has studied the lupin harvesting operation to improve its mechanical efficiency. An experimental and a prototype harvesting front were built and tested in the field. Guidlines for efficient lupin harvesting were produced, and commercial modifications developed.


Interaction Of Rhizoctonia Root Rot On Wheat With Post Emergence Herbicides, W Macleod Jan 1989

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 Jan 1989

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 Jan 1989

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 Jan 1989

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.


Rotational Experiments., C. K. Revell Jan 1989

Rotational Experiments., C. K. Revell

Experimental Summaries - Plant Research

Trial 82M47

a. Subterranean clover.

Subterranean clover rotation trial
Merredin Research Station.

Trial 88ME83

b. Santiago burr medic

Rotational systems for burr medic
Merredin.

Trial 89N29

Rotational systems for burr medic.
Newdegate Research Station.


Replicated Single Row Evaluation., C. M. Saunders Jan 1989

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.


Serradella Evaluations, L. Cransberg Jan 1989

Serradella Evaluations, L. Cransberg

Experimental Summaries - Plant Research

Trial 85AL56

Location: South Sterlings.

Serradella line evaluation - Stage 3.

To evaluate five promising lines selected from variety trials, in terms of herbage production and long term persistence.

Trial 88AL32

Location: Walpole.
Long season serradella evaluation.

To select productive and persistent serradella lines for the deep acidic sands in the very high rainfall zone on the south coast.

Trial 88AL31

Location: Takalarup.

Ryegrass species evaluation.

To investigate the potential of a range of ryegrasses, from short term to long term perennial, in the south coast environment.

Grass species evaluation

Location: Greenrange.

To identify both productive and persistent grasses for …


Nitrogenous Fertilizers For Cereals., M. G. Mason Jan 1989

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: …


Pasture Deterioration Trial, J. W. Bowden, R. J. Lunt Jan 1989

Pasture Deterioration Trial, J. W. Bowden, R. J. Lunt

Experimental Summaries - Plant Research

Trial 89NA61

Location: Duranillin

In this site we would expect a very large response (40 to 50% ) to phosphorus.

History:

The site was chosen because of the patchy and poor pasture production. The poor areas tend to have more suckling clover than the good areas. The pasture was legume dominant.

Treatments were applied on April 16, 1989.


Tactical Nitrogen Decisions For Wheat (And Nitrogen Sources Rates And Times On Wheat), J. W. Bowden, R. J. Lunt Jan 1989

Tactical Nitrogen Decisions For Wheat (And Nitrogen Sources Rates And Times On Wheat), J. W. Bowden, R. J. Lunt

Experimental Summaries - Plant Research

Trial 89MO49

Location: Tenderloin, Brand Highway, Regan's Ford.

History:

1987 Aroona wheat with 70 kg DAP and 3 kg CuSO4 at seeding followed by 60 urea at 3WAS and another 40 urea at 6WAS. Yield was about 1.7 to 1.8 t/ha;
1988 Gungurru lupins with 120 kg super and manganese/ha yielded 1.9 t/ha. 350-400 ml Roundup/ha and one cultivation prior to seeding.


Effect Of Seed Origin And Seed Phosphorus On The Growth Of Lupins., M. M. Riley, M. D. Bolland, K. Adcock Jan 1989

Effect Of Seed Origin And Seed Phosphorus On The Growth Of Lupins., M. M. Riley, M. D. Bolland, K. Adcock

Experimental Summaries - Plant Research

Trial: 89BA29

Location: Badgingarra Research Station, Paddock 4A2, old block.

Lupin cv. Gungurru sieved to uniform size and sown without inoculation. No basal fertilizers were applied as the soil had previously been treated with high rates of superphosphate, micro-nutrients and potassium. Muriate of potash topdressed on 18/8/89 at 100 kg/ha.


Rhizoctonia Control In Potatoes And Potato Resistance To Powdery Scab., R M. Floyd Jan 1989

Rhizoctonia Control In Potatoes And Potato Resistance To Powdery Scab., R M. Floyd

Experimental Summaries - Plant Research

Trials : 88BY26, 88PE34, 88MD35

Control of Rhizoctonia solani infection of potato stems and daughter tubers was demonstrated by preplanting applications of tolclofos-methyl (RIZOLEX TM) to either cut or round seed tubers. Yield of tubers from cut seed treated with Rizolex was increased over that of cut seed cured before planting bu not when seed was cut and planted the same day. Crops grown from round seed treated with Rizolex yielded higher than from untreated round seed.

Surface sterilization of seed tubers with Sodium hypochlorite was effective in reducing stem damage but not in reducing daughter tuber sclerotes. This indicates …


Seed Phosphorus In Cereals And Lupins., R W. Bell Jan 1989

Seed Phosphorus In Cereals And Lupins., R W. Bell

Experimental Summaries - Plant Research

Experiment 89SC21, effect of seed origin and seed phosphorus on growth of wheat.

Experiment 89SC23, effect of seed phosphorus, seed size and seeding density on the growth of wheat at two soil P levels.

Experiment 89GL32, effect of solution P supply on the early growth and nodulation of lupins grown from seed with three levels of P.

Experiment 89GL33, effect of soil P supply on the early growth and nodulation of lupins.

Experiment 89SC20, effect of seed origin and seed phosphorus on growth of lupins.


Ear Stem Ratios In The Breeding Populations. Characterization Of Early Vigour In Wheat Cultivars., K Hm Siddque, L Mclaughlin Jan 1989

Ear Stem Ratios In The Breeding Populations. Characterization Of Early Vigour In Wheat Cultivars., K Hm Siddque, L Mclaughlin

Experimental Summaries - Plant Research

Positive correlation between harvest index and ear stem ratio at anthesis. Study and identify lines varying in ear stem ratio within material from WADA ‘ s wheat breeding programme and to study its implication for grain yield improvement.

Study the genetics and physiology determining ear stem ratio. Characterization of early vigour in wheat cultivars, 89WH54.