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Articles 1 - 30 of 54
Full-Text Articles in Physical Sciences and Mathematics
The Prairie Naturalist Volume 20, No. 4. December 1988
The Prairie Naturalist Volume 20, No. 4. December 1988
The Prairie Naturalist
Paul B. Kannowski, Editor
Nikki R. Seabloom, Assistant Editor
Douglas H. Johnson, Book Review Editor
TABLE OF CONTENTS
RANGE PLANT COMMUNITIES OF THE CENTRAL GRASSLAND RESEARCH STATION IN SOUTH CENTRAL NORTH DAKOTA ▪ C. L Lura, W. T. Barker, and P. E. Nyren
SEASONAL PATTERNS IN SAMPLING DATA FOR LARGEMOUTH BASS AND BLUE GILLS IN A NORTHERN GREAT PLAINS IMPOUNDMENT ▪ E. A. Bettross and D. W. Willis
INTRODUCTION, ESTABLISHMENT, AND DISPERSAL OF WESTERN MOSQUITOFISH IN NEBRASKA (ACTINOPTERYGII: POECILIIDAE) ▪ J. D. Lynch
OBSERVATIONS ON THE ECOLOGY OF CHIGGERS (ACARI: TROMBICULIDAE) FROM SOUTH DAKOTA ▪ E. R. Easton and W. …
The Prairie Naturalist Volume 20, No.3. September 1988
The Prairie Naturalist Volume 20, No.3. September 1988
The Prairie Naturalist
Paul B. Kannowski, Editor
Nikki R. Seabloom, Assistant Editor
Douglas H. Johnson, Book Review Editor
TABLE OF CONTENTS
MOVEMENTS OF ADULT STRIPED BASS TRACKED IN WILSON RESERVOIR, KANSAS ▪ K. E. Hampton, T. L. Wenke, and B. A. Zamrzla
GROWTH, POPULATION STRUCTURE, AND MORTALITY OF CHANNEL CATFISH FROM THE POWDER RIVER AND CRAZY WOMAN CREEK, WYOMING ▪ J. B. Smith and W. A. Hubert
HABITAT USE BY WHITE-TAILED DEER IN PRAIRIE-AGRICULTURAL HABITAT IN MONTANA ▪ G. L. Dusek, A. K. Wood, and R. J. Mackie
BEAVER CROP DEPREDATION IN EASTERN SOUTH DAKOTA ▪ C. D. Dieter and T. R. McCabe …
Potential Of Surface Water Contamination From Three Triazine Herbicides, William W. Witt, Kip W. Sander
Potential Of Surface Water Contamination From Three Triazine Herbicides, William W. Witt, Kip W. Sander
KWRRI Research Reports
The movement of atrazine, cyanazine, and simazine from the site of application was monitored under conventional, reduced, and no-tillage conditions. Less water and soil was lost from the no-tillage and reduced tillage conditions. Conventional tillage conditions had about 66,000 L/ha runoff in 1986-87 and about 123,000 L/ha runoff in 1987-88. Seasonal rainfall was 885 mm in 1986-87 and 397 mm in 1987-88. The rainfall intensity was greater during the first two events in 1987 than the corresponding events in 1986. The first rainfall event in 1986 accounted for 91, 89, and 78% of the total seasonal loss of atrazine, cyanazine, …
An Aeration Duct Design Model For Flat Grain Storage, Thomas C. Bridges, Douglas G. Overhults, Samuel G. Mcneill, G. M. White
An Aeration Duct Design Model For Flat Grain Storage, Thomas C. Bridges, Douglas G. Overhults, Samuel G. Mcneill, G. M. White
Biosystems and Agricultural Engineering Faculty Publications
Traditionally most grain is stored in circular type bins which provide a convenient means for handling and management. With the excess grain production and government loan programs of the past few years, some producers have used rectangular structures and covered piles to complement their round storages. The recommended management practices used with round bins are still required in those alternative storages and may be more critical in obtaining a quality end product.
One such recommended practice used with round bins is aeration. This practice is used to maintain a uniform temperature in the grain mass, preventing condensation and "hot" spots …
The Prairie Naturalist Volume 20, No. 2. June 1988
The Prairie Naturalist Volume 20, No. 2. June 1988
The Prairie Naturalist
THE PRAIRIE NATURALIST
Volume 20, No. 2. June 1988
Paul B. Kannowski, Editor
Nikki R. Seabloom, Assistant Editor
Douglas H. Johnson, Book Review Editor
TABLE OF CONTENTS
PRAIRIES AND GRASSLANDS OF THE ST. CROIX NATIONAL SCENIC RIVERWAY, WISCONSIN AND MINNESOTA ▪ D. C. Glenn-Lewin and J. M. Ver Hoef
SEED RAIN ON A NEBRASKA SAND HILLS PRAIRIE ▪ M. A. Potvin
CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA - 1987 ▪ R. N. Randall
SOUTH DAKOTA RECORDS OF PYGMY AND ARCTIC SHREWS: RESPONSE TO FIRE ▪ M. J. Gruebele and A. A. Steuter
FEEDING ECOLOGY OF THE PLAINS POCKET GOPHER IN …
Patterns Of Sulfur Deposition In The Wood Of Pinus Echinatia Mill. From The Cumberland Plateau In Kentucky, Darrell Ray
Patterns Of Sulfur Deposition In The Wood Of Pinus Echinatia Mill. From The Cumberland Plateau In Kentucky, Darrell Ray
Masters Theses & Specialist Projects
Air pollution and acid precipitation have long had an influence on plant and animal life. In this study, the level of sulfur in the stem tissue of Pinus echinata Mill. was measured in trees from various sites along the western edge of the Cumberland Plateau to determine the presence and pattern of sulfur deposition in this species. Overall, a 40.28% increase in sulfur levels was observed from four sites along the plateau with levels increasing from 0.072 mgS/gdwt in the 1962-66 growth increment to 0.101 mg in the 1982-86 increment. According to a computer generated analysis of variance, the differences …
The Prairie Naturalist Volume 20, No. 1 March 1988
The Prairie Naturalist Volume 20, No. 1 March 1988
The Prairie Naturalist
Paul B. Kannowski, Editor
Nikki R. Seabloom, Assistant Editor
Douglas H. Johnson, Book Review Editor
TABLE OF CONTENTS
WINTER FOOD HABITS OF PRAIRIE PORCUPINES IN MONTANA ▪ P. Hendricks and H. F. Allard
RABIES CONTROL BY SKUNK DEPOPULATION IN SOUTHERN ALBERTA, 1983 TO 1986 ▪ M. J. Pybus
USE OF SHELTER BY MULE DEER DURING WINTER ▪ A. K. Wood
FORAGING BEHAVIOR AND FOOD HABITS OF BURROWING OWLS IN WYOMING ▪ C. D. Thompson and S. H. Anderson
WILD TURKEY NESTING ECOLOGY IN SOUTH CENTRAL SOUTH DAKOTA ▪ T. L. Wertz and L. D. Flake
DOES THE DOWNY AMERICAN AVOCET …
Evaluating Hay Quality, William C. Templeton Jr.
Evaluating Hay Quality, William C. Templeton Jr.
Kentucky Alfalfa and Stored Forage Conference
One of the frustrations to nutritionists interested in the feeding value of roughage has been that with all their book knowledge and technical aids no dependable scheme they could devise would consistently rank forages in feeding value, while the dumb ruminant animal could unerringly detect differences in their nutritive values.
-E. W. Crampton, 1965
Alfalfa Yield, Quality And Persistence, Michael Collins
Alfalfa Yield, Quality And Persistence, Michael Collins
Kentucky Alfalfa and Stored Forage Conference
Alfalfa management in complex because it requires the simultaneous consideration of factors that affect the yield of the crop, forage quality for ruminants and the persistence of the stand. Considerable research has demonstrated the importance of agronomic factors such as soil pH, drainage and soil fertility in successful alfalfa production. Beyond soil factors and cultivar selection, selection of harvest date is one the most important management factors that influence yield, quality and stand persistence.
The Alfalfa Plant's Reaction To Grazing, Paul Deaton
The Alfalfa Plant's Reaction To Grazing, Paul Deaton
Kentucky Alfalfa and Stored Forage Conference
Will the alfalfa plan survive grazing intensively by cattle? This question is asked most frequently these days.
Let's review the parts of an alfalfa plant to begin this discussion. Those parts are: Roots, crown and top growth. Alfalfa has a tap root which is used to store nutrient reserves for survival. It's ability to store these reserves and pull from them during times of stress (drought, cutting, etc.) makes it a very hardy plant.
Grazing Alfalfa — A Reality, John H. Wilson
Grazing Alfalfa — A Reality, John H. Wilson
Kentucky Alfalfa and Stored Forage Conference
Alfalfa offers an excellent opportunity to beef producers for receiving excellent performance. Exciting results have been seen for the past two years on the Thomas Farm (Registered Polled Hereford). A total of 1063 pounds of beef per acre produced this year, with similar results seen in 1986 - a total of 874 pounds of beef produced in 1986.
Weed Control In Alfalfa, Jonathan D. Green
Weed Control In Alfalfa, Jonathan D. Green
Kentucky Alfalfa and Stored Forage Conference
Since weeds which infest forages are harvested along with the alfalfa crop, total dry matter production does not necessarily increase with good weed control. However, controlling weeds which invade alfalfa improve the forage quality. In addition, maintaining good weed control may also prolong the productive life of the alfalfa stand.
If managed properly, established alfalfa stands can effectively prevent many annual and perennial weeds from becoming a major problem. Maintaining proper soil fertility, soil pH, and good soil drainage are some practices which help keep the alfalfa competitive against invading weeds. Other factors which put alfalfa under stress, such as …
Blister Beetles In Alfalfa, C. M. Christensen, Lee H. Townsend
Blister Beetles In Alfalfa, C. M. Christensen, Lee H. Townsend
Kentucky Alfalfa and Stored Forage Conference
Blister beetles are Iong cylindrical beetles that may be black, gray, yellow and brown striped, black with gray margins on the wing covers or black with a red head. These insects are usually found feeding in clusters on alfalfa. They can cause severe sickness and sometimes death when livestock especially horses eat the live or dead beetles. They are usually not found in alfalfa in mid-July and early August which translates to the third or fourth cutting. Blister beetles (black ones, gray margined ones, and yellow striped ones) were collected in very noticeable numbers in several central Kentucky alfalfa fields …
Alfalfa Establishment, Garry D. Lacefield
Alfalfa Establishment, Garry D. Lacefield
Kentucky Alfalfa and Stored Forage Conference
Alfalfa "Queen of the Forage Crops" is the most important forage legume grown in the United States. It is grown over a wide range of soil and climatic conditions. Alfalfa has the highest yield potential and the highest feeding value of all adapted perennial forage legumes. It is a versatile crop which can be used for pasture, hay, silage, green-chop, soil improvements and soil conservation. As a result. of this crops many merits; especially yield, quality and versatile use, it can be used successfully in many animal feeding programs.
Soil And Fertility Considerations For Growing Alfalfa, Monroe Rasnake
Soil And Fertility Considerations For Growing Alfalfa, Monroe Rasnake
Kentucky Alfalfa and Stored Forage Conference
Alfalfa is a widely adapted crop which is grown across the United states and in many other counties. However, it is very sensitive to many soil and fertility factors which can limit its productivity. It is important to understand these factors in order to be a successful alfalfa producer.
Foreword [1988], Garry D. Lacefield
Foreword [1988], Garry D. Lacefield
Kentucky Alfalfa and Stored Forage Conference
This is the front matter of the proceedings.
Crop Establishment Methods For Lupin Disease Management 13 To 23, M Sweetingham
Crop Establishment Methods For Lupin Disease Management 13 To 23, M Sweetingham
Experimental Summaries - Plant Research
88NO73, 88ME59, Phosphorus x disease on lupins.
Aim, location, soil type, rotation, establishment, results.
88ME60, Seed treatments for brown spot and Pleiochaeta root rot of lupins.
88SC33, Rovral and Sumisclex, seed treatment for lupins.
Rhizoctonia root and hypocotyl rots.
88NO74, fungicides and sowing depth for Rhizoctonia root rot.
88GE53, Rizolex for Rhizoctonia control in lupins.
88GE31, Cultivation and sowing depth for Rhizoctonia patch and hypocotyl rot of lupins.
88E38, Cultivation and sowing depth effects on Rhizoctonia bare patch in lupins.
88NO92, Semi selective fungicide drenches for root/hypocotyl rot of lupins.
Tolerance Of New Cereal Varieties To Current Herbicides., D Bowran
Tolerance Of New Cereal Varieties To Current Herbicides., D Bowran
Experimental Summaries - Plant Research
Trial 88EB26
While this site had a low population of weeds no yield increases were apparent. Few variety differeces were apparent at this site, though Hoegrass + Glean reduced yield of Crabook significantly.
Trial 88EC27
Few crop effects were experienced at this site. The major effect was due to variable fertility in replicates 3 and 4 and this resulted in the somewhat uyp and down nature for the Glean, Logran and hoegrass results.
Trial 88SC32
This site had a major problem with soil acidity and only triticale and oats grew satisfactorily. Barley was strongly influenced by the acidity and many …
Summary Of Rhibozium Field Experiments In 1988, J G. Howieson
Summary Of Rhibozium Field Experiments In 1988, J G. Howieson
Experimental Summaries - Plant Research
87M11, 87H12, 88KA77, 88ME97, 88GE32, 88ME98, 88GE33A, 88GE33B, 88KA86, 88ME86.
Title, aim, background, treatments, tables, results, discussion, conclusions.
Annual Medic Evaluation On Eradu Sandplain Soil - 3 M Rows., Bradley Nutt, M. K. Laslett
Annual Medic Evaluation On Eradu Sandplain Soil - 3 M Rows., Bradley Nutt, M. K. Laslett
Experimental Summaries - Plant Research
Trial 88EC16
Location: East Chapman Research Station
Inoculated and lime pelleted seed was hand sown into 3m rows at 0.25 g/m. All the medics were inoculated with WSM 540 which may have been less effective with some of the M. littoralis and M. tornata varieties. The 1988 season was very good in terms of frequency and amount of rainfall which is reflected in the high seed yields compared to 1987.
National Subterranean Clover Improvement Programme, P. Nichols
National Subterranean Clover Improvement Programme, P. Nichols
Experimental Summaries - Plant Research
Trial 88PE27 - University Field Station, Shenton Park
Trial 88WH43 - Wongan Hills Research Station.
The project aims to develop, by breeding and selection, better adapted and more productive low-oestrogen cultivars of subterranean clover for a range of environments in southern Australia. The programme is a collaborative one with the University of Western Australia and consists of two phases (i) early generation selection, which involves selecting varieties satisfying primary selection criteria; and (ii) field evaluation of advanced lines, which is conducted by the Departments of Agriculture in each State and co-ordinated by the Plant Breeder. The first phase is conducted …
Selection And Development Of Early Maturing Varieties Of Murex Medic., D. J. Gillespie
Selection And Development Of Early Maturing Varieties Of Murex Medic., D. J. Gillespie
Experimental Summaries - Plant Research
Trial 88A25, 88MO44, 88NA83, 88AL15
Location: Avondale, New Norcia, Darkan, Cranbrook, Arthur River, Kellerberrin North Quairdading, Gabalong, Merredin, Badgebup and Pingrup.
Over 300 recent overseas introductions of murex medic were evaluated in rows at South Perth in 1988. Of these 15 selections were identified with acceptable spinniness that flower in 100 days or less. Four years ago there was only one selection flowering in under 110 days and that was spiny!
These selections will be evaluated in small plot trials in several country sites in 1989.
This programme aims to identify superior varieties to Zodiac which was released in 1988.
Experimental Summary 1988, R Ac Jones, J M. Wroth, A R. Baker, A D. Lucas, S J. Mckirdy, A D. Lucas, C R. Wilson, W Pathipanawat, R D. Harris, K Clarke, D Van Den Bosch
Experimental Summary 1988, R Ac Jones, J M. Wroth, A R. Baker, A D. Lucas, S J. Mckirdy, A D. Lucas, C R. Wilson, W Pathipanawat, R D. Harris, K Clarke, D Van Den Bosch
Experimental Summaries - Plant Research
1. Disease complexes in wheat field screening trials.
2. Glasshouse screening for wheat leaf disease resistance.
3. Effect of phosphate, stand density and Rovral on Pleiochaeta setosa in lupins.
4. Genotype and rvral for Pleichaeta setosa in lupins.
5. Control of Septoria in early sown wheat.
6. Controlling Pyrenophora graminea leaf stripe in barley.
7. Effect of environment on leaf stripe in barley.
8. Unusual seed quality problems.
Experimental Summary 1988., R Loughman, G Thomas, G Cusack, R Hulakjo, R E. Wilson, T N. Khan
Experimental Summary 1988., R Loughman, G Thomas, G Cusack, R Hulakjo, R E. Wilson, T N. Khan
Experimental Summaries - Plant Research
- Disease complexes in wheat field screening trials.
- Glasshouse screening for wheat leaf disease resistance
- Effect of phosphate, stand density and Rovral on Pleiochaeta setosa in lupins.
- Genotype and Rovral for Pleiochaeta setosa in lupins.
- Control of Septoria in early sown wheat.
- Controlling Pyrenophora graminea leaf stripe in barley.
- Effect of environment on leaf stripe in barley
- Unusual seed quality problems.
Postharvest Fungicide Treatments For Control Of Penicilium Storage Rot Of Pears, P Mcr Wood
Postharvest Fungicide Treatments For Control Of Penicilium Storage Rot Of Pears, P Mcr Wood
Experimental Summaries - Plant Research
88SW1, Karragullen.
Table one.
Comments.
Winter Dormant Treatment For Control Of Apple Mildew, P Mcr Wood
Winter Dormant Treatment For Control Of Apple Mildew, P Mcr Wood
Experimental Summaries - Plant Research
88MA51, 88MA50, 88BY32.
Table two.
Comments
Crop Establishment Methods For Lupin Disease Management, M Sweetingham, A Pelham, M Judges
Crop Establishment Methods For Lupin Disease Management, M Sweetingham, A Pelham, M Judges
Experimental Summaries - Plant Research
Pleiochaeta root rot, 88WH33, 88M38, 88WH34, 88M39, 87WH45, 87M52.
Brown spot and Pleiochaeta root rot, 88M40, 88C4, 88ME59, 88NO73, 88ME60, 88SC33.
Rhizoctonia root and hypocotyl rots, 88NO74, 88GE53, 88GE31, 88E38.
Fungicide drench trials, 88NO92.
Tolerance Of Recommended Cereal Varieties Of New Herbcides, David Bowran
Tolerance Of Recommended Cereal Varieties Of New Herbcides, David Bowran
Experimental Summaries - Plant Research
88EC28, 88SC31, 88N73.
Pea Variety Tolerances To Herbicides, David Bowran
Pea Variety Tolerances To Herbicides, David Bowran
Experimental Summaries - Plant Research
88ME118.
This site was variably infested with a population of wild oats and self-sown cereals.
Lupin Variety Tolerance To Herbicides, D Bowran, R Watson
Lupin Variety Tolerance To Herbicides, D Bowran, R Watson
Experimental Summaries - Plant Research
Trial 88EC31
This site received a basal treatment of 1.5 L of simazine/ha prior to seeding. Due to a heavy stubble load lupin seed was dropped onto the surface and lightly incorporated.
High rates of Simazine were better tolerated by Gungurru 75A/260 and CE2/435. The highest rate of Brodal reduced yields in all varieties except Gungurru.
Trial 88EB27
This site was severely infested with aphids and bean mosaic virus such that the varieties Illyarrie and Danja had up to 60% plant death by anthesis. Other varieties were affected but to a lesser extent.