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Articles 10051 - 10080 of 10365

Full-Text Articles in Physical Sciences and Mathematics

Effect Of Various Crop And Pasture Species On The Growth Of A Subsequent Wheat Crop, N Delroy, J W. Bowden, I Rowland, M Ralph, R Lunt, M Baker Jan 1984

Effect Of Various Crop And Pasture Species On The Growth Of A Subsequent Wheat Crop, N Delroy, J W. Bowden, I Rowland, M Ralph, R Lunt, M Baker

Experimental Summaries - Plant Research

83WH29: The effect of various crop and pasture species on the growth of a subsequent wheat crop. Aim: To characterise the effect of various crop and pasture species on the growth and yield components of a subsequent wheat crop with special emphasis on the nitrogen nutrition of that crop. To provide validation data for modelling wheat growth and nitrogen uptake. Measurements: Factors to be monitored through time were; Soil moisture profiles; Mineral nitrogen profiles; Root growth profiles; Top growth and nitrogen uptake; Development score; Incidence of disease and pests.

Seasonal notes, trial design, weed diseases and pests. Results: The results …


Seed Set Control. Competition. Herbicide Efficiency. Herbicide Trials., J E. Holmes, R L. Thomas Jan 1984

Seed Set Control. Competition. Herbicide Efficiency. Herbicide Trials., J E. Holmes, R L. Thomas

Experimental Summaries - Plant Research

Seed set control

83M60 - Barley grass

83Na54 – Barley grass

83A4 – Rye grass

83N50 – Brome grass

Competition

84A12 – Brome grass

84A10 – Silver grass

84A6 – Barley grass

Herbicide efficiency

84A7 - Brome grass : Hoegrass pre-emergent

Herbicide trials

84A11 – Barley grass : Glean mixture

84A13 – Barley grass : Isoproturon

84A15 – Brome grass : Glean mixtures

84A16 - Brome grass : Hoegrass, Donsanex, AC222293

84A9 – Silver grass : lsoproturon, Yield, trifulualin,

AC222293, Dosanex

84A14 – Rye grass : Hoegrass following Glean

84A19 – SD-95481 : Grasses controlled

84A20 – CME12701 : Evaluation …


Long Term Minimum Tillage Investigations, Stubble Management, Deep Ripping, R J. Jarvis, L G. Butcher Jan 1984

Long Term Minimum Tillage Investigations, Stubble Management, Deep Ripping, R J. Jarvis, L G. Butcher

Experimental Summaries - Plant Research

Direct drilling Long term minimum tillage investigations (1) Continuous cropping – 77A16, 77A18, 77MT15, 77WH17, 77WH13, 78M25. (2) Rotational cropping – 77A43, 77E52, 77M35, 77M56, 77MT51, 77WH8. Stubble management – 79M7, 79WH6, 82M34, 84M1, 82LG4, 82LG46 (82KD1). Deep ripping - 82M35 in Minimum Tillage Rotation section also contains a deep ripping treatment. 77WH17, 80A44, 80NO46, 81M45, 81NO3, 81NO4, 82GE37, 82GE38, 82M30, 82M46, 82M60, 82ME38, 82N32, 82WH49, 84E24, (84C42, 84C43, 84C44, 84C45, 84C46) Eradu Sandplain – ECRS, 84E23, 84E24, 84JE43, 84JE44, 84LG37, 84M38, 84NO58, 84WH2, 84WH3, 84WH39. Additional deep ripping research is included in summaries by W. Bowden, D. Tennant, J. …


Manganese Nutrition Of Cereals, J W. Gartrell Jan 1984

Manganese Nutrition Of Cereals, J W. Gartrell

Experimental Summaries - Plant Research

Acidifying N fertilizers on availability of native soil Mn, and on fertilizer Mn applied in two forms and two mixing methods 84NO3. Acidifying N fertilizers Mn sources, methods of incorporation 84NO4. Acidifying N fertilizers, Mn sources, methods of incorporation 84NO5. Varietal differences among wheats in ability to absorb and utilize manganese in deficiency situations 84NO6. Manganese residual with acidifying nitrogen fertilizers 84NO7.


Low Rainfall Pasture Project, M. A. Ewing Jan 1984

Low Rainfall Pasture Project, M. A. Ewing

Experimental Summaries - Plant Research

1. Variety experiments: (a) Rows 84M39. (b) Small Plots 84M40. (c) Large Plots 84M41, 84WH40, 84N22, 84LG39, 84M56, 84M57. 2. Pasture establishment systems: 84TS38, 84M61. 3. Pasture grazing (defoliation) experiments: 84M43, 84LG34, 84LG33, 84M42. 4. Cereals following pastures: 84ME47. 5. Pasture wheat rotaton experiments: 82WH39, 82M47. 6. Medic rhizobial studies - see report of J. Howieson. 7. Lupins - see report R. French.


Trace Element Nutrition, M M. Riley, J W. Gartrell, R. F. Brennan Jan 1984

Trace Element Nutrition, M M. Riley, J W. Gartrell, R. F. Brennan

Experimental Summaries - Plant Research

South Perth Long term copper trial - Newdegate Research Station – 66N14. Copper, zinc & sulphur residual with DAP for wheat – 78WH66. Copper and zinc residual with DAP – 78MO36. Zinc residual with high analysis N.P. fertilizer for wheat – 79ME22, 79ME23, 80MO8, 80NO31. Cereal responses to zinc Copper and nitrogen interactions on wheat varieties – 83GE2, 83WH1. Barley responses to drilled trace elements – 83BR4, 83BR5. Manganese on wheat – 82NO8. ESPERANCE Zinc residual with high analysis N.P. fertilizer for wheat – 83ES35. Methods of copper application on new land – 83LG6. Copper spray and nitrogen rate applications …


Horticultural Crops; Grapevines, Capsicum, Fruit Trees And Lucerne, D J. Gilbey, R Klemm Jan 1984

Horticultural Crops; Grapevines, Capsicum, Fruit Trees And Lucerne, D J. Gilbey, R Klemm

Experimental Summaries - Plant Research

Crabgrass control in vines – 82SR4, 83SR4. Weed control in capsicums - 83MD10, 84MD6. Herbicide tolerance – fruit – 82MN36. Crabgrass control in lucerne - 82PE60, 83PE6, 84PE4.


Nitrogen Flows From Several Species And Varieties Of Legume, John Hamblin Dr Jan 1984

Nitrogen Flows From Several Species And Varieties Of Legume, John Hamblin Dr

Experimental Summaries - Plant Research

Trial 83C24: N flows from several species and varieties of legume.

Trial 83C27: The effect of seeding rate, planting and variety on the residual value of lupins.

Trial 84C25: Small rotation trial for 1985.

Trial 84C34: Nitrogen response on large rotation plots at ECRS.

These trials were carried out in collaboration with: Mr R. Delane, and with assistance from: Mr. T. White, Ms. A. Bishop.


Crop Oil Additives To Herbicides, R Madin, A Lindsay Jan 1984

Crop Oil Additives To Herbicides, R Madin, A Lindsay

Experimental Summaries - Plant Research

Crop oil additives to herbicides - 84LG42.

Umbrella grass (Cyperus eragrostis) control in irrigated pasture - 85HA1.

Stinkwort control - 85NO5, 85PE14.

Ice plant (Mesembryanthem nodiflorum) control in crop and pasture - 83SG20, 83SG21.


Seed Ecology Of Weeds, A H. Cheam Jan 1984

Seed Ecology Of Weeds, A H. Cheam

Experimental Summaries - Plant Research

1. Emergence of weed seedlings from different soil depths 82MT49 Mt Barker Research Station 83MT4 Mt Barker Research Station 82NR12 Northam Research Station 83NR2 Northam Research Station 82C37 Chapman Research Station 83C3 Chapman Research Station

2. Longevity of buried weed seeds 82MT50 Mt Barker Research Station 83MT5 Mt Barker Research Station 82NR13 Northam Research Station 83NR3 Northam Research Station 82C38 Chapman Research Station 83C4 Chapman Research Station

3. Emergence of weed seedlings in relation to soil type and cultivation 82PE32 South Perth

4. Changes in the number of viable dock seeds in soil under different soil surface treatments 83V2 Vasse …


Hoegrass, Herbicide, Plant Growth And Soil Activity Of Glyphosate, T Piper Jan 1984

Hoegrass, Herbicide, Plant Growth And Soil Activity Of Glyphosate, T Piper

Experimental Summaries - Plant Research

Hoegrass tolerant ryegrass. Herbicide incorporation. Plant growth one season after herbicide use. Soil activity of glyphosate. Growth of lupins on plots treated with herbicide for each of the two previous seasons - Trials carried out at Geraldton, Wongan Hills and Wickepin measured the amount of pasture produced on plots that had been treated with herbicides while in crop the previous season.


Sources Of Phosphorus Trials. Miscellaneous Trials., J W. Bowden, R Lunt, M Baker Jan 1984

Sources Of Phosphorus Trials. Miscellaneous Trials., J W. Bowden, R Lunt, M Baker

Experimental Summaries - Plant Research

I Sources of phosphorus work. Pasture trials - 77MT1 - New land (1977) continuous pasture trial, gravel. 80BA6 - Ley 1984. Serradella weeds and lupin regrowth, sand. 84N069 - New land (1984) pasture, gravel. Crop trials - 76WH9 - New land (1976) run down on one dressing of P W.L.S. 76WH10 - Young land Topdressed annually, biennially and once off. 76WH14 - Old land Topdressed anually and biennially. 76N4 - New land (1976) Topdressed annually biennially and once off, gravel. 84M63 - New land (1984) Once off dressing. Trials not sampled - 77WH2 - Old land Sources trial 77MT2 - …


Nitrogenous Fertilisers For Cereals, M G. Mason Jan 1984

Nitrogenous Fertilisers For Cereals, M G. Mason

Experimental Summaries - Plant Research

Nitrogenous fertilisers for cereals: Evaluation of the nitrification inhibitor- DIDIN – 84BA2, 84TS2. Nitrogen fertiliser requirement in alternate crop-pasture rotation – 778BA1, 78WH2. Effect of Agras No. 1 on soil pH and wheat yield – 80M1, 80N3, 80WH3. Late nitrogen sprays for wheat – 84M2, 84MT1, 84WH1. Rates of nitrogen on wheat - soil test – 84MO1, 84MO2, 84MO4, 84MO5, 84MO6. Effect of stubble treatment on nitrogen fertiliser requirement – 78M2. Nitrogen fertiliser requirement in a lupin-wheat rotation – 81LG29. Rates of nitrogen on wheat – 84ME47, 84ME48. Nitrogen response in wheat on grey clay – 84MO7. Nitrogen rate on …


Soil Acidity Survey. Lime Responses In The Central Wheatbelt, P J. Dolling Jan 1984

Soil Acidity Survey. Lime Responses In The Central Wheatbelt, P J. Dolling

Experimental Summaries - Plant Research

Introduction: In 1984 a project commenced to examine the influence of soil acidity on barley production in the main barley growing areas of Western Australia. To carry out some of the projects objectives a soil survey was carried out.

Aims: 1. To select nine sites for liming trials in 1985. 2. To obtain more information about the soil acidity problem in the medium rainfall region of W.A. 3. To determine if there is a relationship between the pH and aluminium content of the soil.

Survey details: Area covered - Katanning and Narrogin District Office (DO) areas. Sampling period - Mid …


Oilseed Agronomy, A G. Mckay, R J. Larsen Jan 1984

Oilseed Agronomy, A G. Mckay, R J. Larsen

Experimental Summaries - Plant Research

Potential of triazine tolerant rapeseed – 84AL44, 84MA23, 84WH31.

Rates and times of triazines on triazine tolerant rapeseed – 84MA22, 84WH33.

Fitness of triazine tolerant and susceptible F1's - 85GL7.

Cleaning crops for cereals – 84MA2.

Interstate variety evaluation – 84MA24, 84MT42,84WH32.


Horticultural Crops - Grapevines, Capsicum, Fruit Trees, Lucerne., D J. Gilbey, R. Klemm Jan 1984

Horticultural Crops - Grapevines, Capsicum, Fruit Trees, Lucerne., D J. Gilbey, R. Klemm

Experimental Summaries - Plant Research

Crabgrass control in vines - 82SR4, 83SR4 Weed control in capsicums - 83MD10, 84MD6. Herbicide tolerance - fruit - 82MN36. Crabgrass control in lucerne - 82PE60, 83PE6, 84PE4.


The Prairie Naturalist Volume 15, No. 4. December 1983 Dec 1983

The Prairie Naturalist Volume 15, No. 4. December 1983

The Prairie Naturalist

Paul B. Kannowski, Editor

Nikki R. Seabloom, Assistant Editor

Douglas H. Johnson, Book Review Editor

TABLE OF CONTENTS

ASPECTS OF THE NESTING ECOLOGY OF LEAST TERNS AND PIPING PLOVERS IN CENTRAL NEBRASKA ▪ C. A. Faanes

LEAD SHOT INCIDENCE IN SANDHILL CRANES COLLECTED FROM ALASKA, CANADA, AND TEXAS ▪ B. M. Wallace, R. J. Warren and G. D. Gaines

LEAD SHOT INCIDENCE IN WATERFOWL COLLECTED FROM THE TEXAS HIGH PLAINS ▪ B. M. Wallace, R. J. Warren and R. J. Whyte

SMALL MAMMALS OF WINTER WHEAT AND GRAIN SORGHUM CROPLANDS IN WEST-CENTRAL KANSAS ▪ K. W. Navo and E. D. …


The Prairie Naturalist Volume 15, No. 3. September 1983 Sep 1983

The Prairie Naturalist Volume 15, No. 3. September 1983

The Prairie Naturalist

Paul B. Kannowski, Editor

Douglas H. Johnson, Book Review Editor

TABLE OF CONTENTS

WINTER DISTRIBUTION AND HABITAT USE BY MULE DEER AND WHITE-TAILED DEER IN SOUTHEASTERN MONTANA ▪ J. E. Swenson, S. J. Knapp and H. J. Wentland

HISTORY AND STATUS OF EUROPEAN FALLOW DEER (Dama dama dama) AT ARGONNE NATIONAL LABORATORY, ILLINOIS ▪ G. G. Gray

REPRODUCTIVE CHRONOLOGY OF GREATER PRAIRIE CHICKENS IN MINNESOTA AND RECOMMENDATIONS FOR CENSUSING AND NEST SEARCHING ▪ W. D. Svedarsky

SUMMER BIRD USE OF A STATE-OWNED HUNTING AREA IN NORTHWESTERN ILLINOIS ▪ M. W. Brown

EVALUATION OF INTRODUCED RUFFED GROUSE IN WESTERN …


The Prairie Naturalist Volume 15, No. 2. June 1983 Jun 1983

The Prairie Naturalist Volume 15, No. 2. June 1983

The Prairie Naturalist

Paul B. Kannowski, Editor

Douglas H. Johnson, Book Review Editor

TABLE OF CONTENTS

EFFECTS OF FIRE ON RODENTS IN TALLGRASS PRAIRIE OF THE FLINT HILLS REGION OF EASTERN KANSAS. D. W. Kaufman, G. A. Kaufman, and E. J. Finck

FECAL pH AND FOOD HABITS OF SYMPATRIC LAGOMORPHS IN TEXAS R. J. Warren

UNUSUAL PLANT ASSEMBLAGE IN WALSH COUNTY, NORTH DAKOTA ▪ B. Heidel

ADDITIONAL RECORDS OF PASSERINES FEEDING ON POPLAR GALLS, AND A POSSIBLE MECHANISM FOR SUMMER NOMADISM IN BOREAL FINCHES ▪ P. J. DuBowy

UPDATE ON THE AMERICAN BALD EAGLE, Haliaeetus leucocephalus L., IN NEBRASKA ▪ S. J. Rothenberger …


The Prairie Naturalist Volume 15, No. 1. March 1983 Mar 1983

The Prairie Naturalist Volume 15, No. 1. March 1983

The Prairie Naturalist

NUTRIENT POOL SIZE RELATIONS IN THE UNDERSTORY STRATA OF A NORTHERN GREAT PLAINS GALLERY FOREST ▪ K. T. Killingbeck

COMPARISON OF OLD FIELD SUCCESSION ON A TALLGRASS PRAIRIE AND A NEBRASKA SANDHILLS PRAIRIE ▪ M. L. Bomberger, S. L. Shields, A. T. Harrison and K. H. Keeler

MANIPULATION OF FLOOD MEADOW VEGETATION AND OBSERVATIONS ON SMALL MAMMAL POPULATIONS ▪ J. E. Cornely, C. M. Britton and F. A. Sneva

CANVASBACK INTRODUCTION IN WEST-CENTRAL MINNESOTA ▪ H. A. Doty

FORAGING BEHAVIOR AND WATER USE OF HORSES AND CATTLE IN THE WYOMING RED DESERT ▪ L. J. Krysl, G. E. Plumb, M. …


Clover Scorch Screening, Root Rot Screening, Bluegreen Aphid Screening, Red Legged Earthmite Screening Experiments, Evaluation Of Medicago Murex, D J. Gillespie Jan 1983

Clover Scorch Screening, Root Rot Screening, Bluegreen Aphid Screening, Red Legged Earthmite Screening Experiments, Evaluation Of Medicago Murex, D J. Gillespie

Experimental Summaries - Plant Research

Clover scorch screening. Root rot screening. Bluegreen aphid screening. Red legged earth mite screening experiments. Evaluation of Medicago murex.


Ecology Of Skeleton Weed (Chondrilla Juncea) In Wa. Population Studies On Pennyroyal (Mentha Pulegium)., F D. Panetta Jan 1983

Ecology Of Skeleton Weed (Chondrilla Juncea) In Wa. Population Studies On Pennyroyal (Mentha Pulegium)., F D. Panetta

Experimental Summaries - Plant Research

The ecology of skeleton weed - Cunderdin, Tammin, Narembeen (2 sites), Chapman valley, Eradu, East Badgingarra, Moorine Rock. Fate of buried seeds: Chapman, Merredin, Esperance Research stations. Population studies on pennyroyal: Seed production - Denmark, Mount Barker, Frankland. Sizes of seed banks of pennyroyal in pasture and ruderal situations – Denmark, West Denmark, Karri Heights, Narrikup (1), Frankland River. Ruderal populations – Mt Barker (1), Frankland, William bay, East Denmark, Narrikup (2), Denbarker, Mt Barker (2). Seedling emergence and survival – Denmark, Mt Barker, Frankland. Genetic differences between populations.


Pasture Manipulaton On Animal, Crop And Pasture Production, C W. Thorn, C J. Stockdale Jan 1983

Pasture Manipulaton On Animal, Crop And Pasture Production, C W. Thorn, C J. Stockdale

Experimental Summaries - Plant Research

1. Effect of Pasture Manipulation on Animal Production - 81M01 - 'Ranfurly'.

2. Effect of Pasture Manipulation on Crop Production - 81M01 - 'Ranfurly'.

3. Effect of Pasture Manipulation on Animal Production - 82NA29 - 'Culford'.

4. Pasture Manipulation in a 1:1 Rotation at Esperance - 79El5 – 'Esperance Downs'.

5. Pasture Manipulation in a 2 pasture: 1 crop Rotation – 81E35 – 'Esperance Downs'.

6. Pasture Manipulation - Effects on Take-all - 82LG25 - 'McMahons'.


1. Clover Scorch Screening, 2. Bluegreen Aphid Screening, 3. Root Rot Screening, 4. Medicago Murex, 5. Clover Establishment Techniques, 6. Salinity Effects On Irrigation Pastures, 7. Moisture Usage And Seed Production In Subterranean Clover., D. J. Gillespie Jan 1983

1. Clover Scorch Screening, 2. Bluegreen Aphid Screening, 3. Root Rot Screening, 4. Medicago Murex, 5. Clover Establishment Techniques, 6. Salinity Effects On Irrigation Pastures, 7. Moisture Usage And Seed Production In Subterranean Clover., D. J. Gillespie

Experimental Summaries - Plant Research

Clover scorch screening, Bluegreen aphid screening, Root rot screening, Medicago murex, Clover establishment techniques, Salinity effects on irrigation pastures, Moisture usage and seed production in subterranean clover.


Low Rainfall Pasture Project, M. Ewing Jan 1983

Low Rainfall Pasture Project, M. Ewing

Experimental Summaries - Plant Research

1. Variety Comparisons - rows and small plots. a). Rows 83M54, 83M55, 83M57 and 83ME86. b). Small plots 83M36, 83ME58 and 83ME59. 2. Variety Comparisons - large plots. a). Old sites - 82ME47-51, 82LG32, 82N31, 82TS32. b). New site - 82ME62. 3. Medic rhizobial trials - 83M43, 83M47, 83M46. 4. Pasture establishment trials - 83M37, 83TS40, 83WH39. 5. Lupin - wheat rotation trials - 82ME52, 82ME53. 6. Pasture wheat rotation trials - 82N044, 82M47, 82WH39.


Nitrogenous Fertiliser Requirements In Different Cropping Rotations, M G. Mason, I C. Rowland Jan 1983

Nitrogenous Fertiliser Requirements In Different Cropping Rotations, M G. Mason, I C. Rowland

Experimental Summaries - Plant Research

Nitrogen requirement of wheat after clover, lupins and cereal – 78C1, 80BA3. Nitrogen requirement of barley after clover, lupins and non legume crop – 78E3. Nitrogen fertiliser requirements in a lupin-wheat rotation – 81LG29. Nitrogen fertiliser requirement in alternate crop-pasture rotation – 78BA1, 78WH2. Yield response of wheat to lupin nitrogen – 83LG66.


Herbicide, Cereal, Wheat Tolerance. Weed, Melon, Paterson's Curse, Iceplant, Mesquite Cotton Bush Chemical Control, R Madin, A Lindsay Jan 1983

Herbicide, Cereal, Wheat Tolerance. Weed, Melon, Paterson's Curse, Iceplant, Mesquite Cotton Bush Chemical Control, R Madin, A Lindsay

Experimental Summaries - Plant Research

Herbicide tolerance trials – Merredin, Wongan Hills, Mount Barker. Cereal (wheat) Tolerance to various herbicides - 83LG37. Tolerance of wheat varieties to phenoxy herbicides - 83MO42. Long-term weed control on railway track - 81PE12, 81MO41. Melon control herbicides for melon control - 84M08, 84M09. Control of Paterson's Curse in Pasture - 83SW1. Chemical Topping of Paterson's Curse. Control of Iceplant (Mesembryanthemum nodiflorum) in crop and pasture - 83SG20, 83SG21. Chemical Control of Mesquite (Prosopis juliflora) - 82PH1. Chemical Control and Biology of Narrow Leaf Cotton Bush (Gomphocarpus fructicosa).


Evaluation Of Annual Grass Control 1982 1983, D Nicolas Jan 1983

Evaluation Of Annual Grass Control 1982 1983, D Nicolas

Experimental Summaries - Plant Research

Trial 82NA29

History.

Design.

Methods.

Results and discussion.


Summary Of Experimental Results 1982/83., J. Hamblin Jan 1983

Summary Of Experimental Results 1982/83., J. Hamblin

Experimental Summaries - Plant Research

82C22, 82C23 Wheat Production Trials, 82C24 Nitrogen flows from different legume species and varieties, 82C10 Lupins under sown with Harbinger, 82Cl9 The effect of Simazine on Harbinger Medic, 82C21 Pea variety trial, 82C23 The effect of green manuring on wheat yields.


Studies On The Effects Of Nutrition And Tillage Systems On Cereal Root Diseases, R F. Brennan Jan 1983

Studies On The Effects Of Nutrition And Tillage Systems On Cereal Root Diseases, R F. Brennan

Experimental Summaries - Plant Research

1. Split Applications of Nitrogen and Take-all 83ES33. 2. Nitrogen and Phosphorus Rates and Take-all 83ES41. 3. Nitrogen and Phosphorus Rates and Take-all 83ES42. 4. Nitrogen and Phosphorus Rates and Take-all 83ES43. 5. Micronutrients (Cu, Zn) and Take-all 83ES39. 6. Micronutrients (Cu, Zn) and Take-all 83ES40. 7. Cu Residual on Wheat and Take-all 67E8. 8. Cu Residual on Wheat and Take-all 67E9. 9. Effects of Sources of Nitrogen on Take-all 77E4. 10. Root Rot Survey: West of Gibson. 11. Root Rot Survey: East of Gibson.