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Articles 61 - 90 of 185
Full-Text Articles in Fresh Water Studies
Long Term Minimum Tillage Investigations, Stubble Management Techniques, Deep Ripping And Seeding Machine Comparisons., R. J. Jarvis, L. G. Butcher, L. D.J. Smith
Long Term Minimum Tillage Investigations, Stubble Management Techniques, Deep Ripping And Seeding Machine Comparisons., R. J. Jarvis, L. G. Butcher, L. D.J. Smith
Experimental Summaries - Plant Research
77 A 16, red/brown sandy loam. 77 WH 17, yellow clayey-sand (Wongan loamy sand). 77 M 13, red sandy clay loam (salmon gum, gimlet). 78 M 25, Yellow acid loamy sand (Wodgil). 77 Mt 15 Gravelly loamy sand/sandy loam - forest soil 77 E 18, fine white sand over fine sandy clay. 77 A 43, Brown loamy sand/sandy loam - Jam country.77 WH 88, Grey loamy sand over gravel at 50 cm - Elphin soil series – Mallee. 77 M 56, Red sandy clay loam - Salmon Gum, Gimlet. 82 M 35, Loamy sand/sandy loam – Mallee. 77 E 52, …
Farm Systems Research Involving New Pasture Species., C. W. Thorn, C. K. Revell
Farm Systems Research Involving New Pasture Species., C. W. Thorn, C. K. Revell
Experimental Summaries - Plant Research
The effect of grazing on Circle Valley medic production. Effect of rotations on M. polyrnorpha production and persistence and cereal crop yields, 84 KA 35, 85 LG 44, 84 KA 37 Effect of tillage x gypsum x nitrogen on continuous cereal production, 84 KA 28. Effect of gypsum x seeding rate on the seed yield of three pasture legumes. Pasture species tolerance to grass and broadleaf herbicides. Undersowing cereal crops with burr medic.
Grain Legume Agronomy Programme., G. H. Walton
Grain Legume Agronomy Programme., G. H. Walton
Experimental Summaries - Plant Research
Lupin agronomy, 85AL4, 85AL6, 85M05, 85PE13, 81M029, 81M030, 81M027. Grain legume crop comparisons, 85LG23, 85LG24, 85LG25, 85E23, 85GE28, 85C71, 85ME35, 85KA7, 85E2, 85N5, 85N04, 85SG2, 85E34, 85LG38, 85LG40, 85MN2, 85MD25, 85MN1.
Barley Agronomy., K. J. Young, B. R. Wylde, B. Raszyk, T. N. Khan
Barley Agronomy., K. J. Young, B. R. Wylde, B. Raszyk, T. N. Khan
Experimental Summaries - Plant Research
Barley foliar diseases, effect on nitrogen response, 85ES25, 85E24, 85E25, 85MT37, 85ES29, 85MT38, 85E26, 85ES32, 85ES31, 85ES30, 85ES26, 85ES24, 85ES27, 85ES28, 85ES34, 85M27, 85SG27, 85MT42, 85C70,
Low Tillering Cereals, Early Maturity Of Cereals, Cereal Variety And Reduced Branching Lupins., R. Delane, J. Hamblin
Low Tillering Cereals, Early Maturity Of Cereals, Cereal Variety And Reduced Branching Lupins., R. Delane, J. Hamblin
Experimental Summaries - Plant Research
Trial 85C62 - growth and water use of low tillering cereals. Trial 85C62 - yield potential of low tillering cereals. Trial WEUNI - response of low tillering breeding lines and standard varieties to sowing rate. Trial 85C45 - effect of flowering date, seeding rate, deep tillage and applied nitrogen on yield of barley. Trial 85C61 - wheat variety x management interaction on sandplain. Trial 85C55 - growth and water use of reduced branching lupins. Trial 85C56 - normal and reduced branching lupins - planting density response.
Pasture Research Programme For The Medium Rainfall Zone Of Wa, C K. Revell, C W. Thorn
Pasture Research Programme For The Medium Rainfall Zone Of Wa, C K. Revell, C W. Thorn
Experimental Summaries - Plant Research
Field Assistants: I.R. Rose S.P. Davis Soil Analysis: I.A. Pritchard. A. Screening trials M. polymorpha var brevispina. M. truncatula. T. cherleri - 84KA41, 84KA42, 84KA43, 84KA47. B. Large scale M. polymorpha evaluation - 84KA38, 84KA39, 84KA40, C. Long term Medic species evaluation - 82KA44, 82KA45. D. Species characterization trials - 83KA66, 83KA67. E. M. murex evaluation - 83KA45. F. Dwalganup replacement subclovers - 83KA69. Since 1981, the major emphasis of the Katanning pasture programme has been to select pasture species suitable for replacing ryegrass on soils where Annual Ryegrass Toxicity (ARGT) has been a major problem. These soils have traditionally …
Lupins Wheat Rotation Long Term Rotation Trials, I Rowland, W Hawkins
Lupins Wheat Rotation Long Term Rotation Trials, I Rowland, W Hawkins
Experimental Summaries - Plant Research
Long term rotation trials - 66M29, 67Cl3, 67N4, 68E5, 68SG5, 73SG16.
Lupins Wheat Rotation - 80TS3, 82TS2, 82M26.
Ecology Of Skeleton Weed (Chondrilla Juncea) In Western Australia, F D. Panetta
Ecology Of Skeleton Weed (Chondrilla Juncea) In Western Australia, F D. Panetta
Experimental Summaries - Plant Research
For the first time a laboratory for conducting this type of research has been established in South Perth, and it has been possible to type plants from mature leaf material. This obviates the necessity of waiting for plants to seed to be able to identify them. A total of six new collections were identified as belonging to either the broad-leaf or narrow-leaf forms, the locations for which are given in Table l.l..
Seed viability. To determine the amounts, viability and dormancy status of seeds produced by field-grown plants during summer and autumn months. Time course of seed production by field-grown …
Water Use Of Alternative Wheatbelt Crop Species, A P. Hamblin, M W. Perry, D Tennant, Neil C. Turner Dr
Water Use Of Alternative Wheatbelt Crop Species, A P. Hamblin, M W. Perry, D Tennant, Neil C. Turner Dr
Experimental Summaries - Plant Research
84M5, 84M6, 84M7. Location: Merredin Research Station Merredin, Western Australia. Three experiments were conducted to measure the productivity and water use of alternative wheatbelt crop species on contrasting soil types in a dry mediterranean environment. Crop species investigated were wheat, barley, cereal rye, narrow leafed lupin and field pea. These were grown on three contrasting soil types, a red-brown earth, a sandy loam over clay and a deep loamy sand; all soils occurring within close proximity to each other. Detailed measurements were made of meteorological conditions, dry matter production, leaf area, root growth, soil water profiles, light interception and plant …
Grain Legume Agronomy Program, G H. Walton
Grain Legume Agronomy Program, G H. Walton
Experimental Summaries - Plant Research
Lupin Agronomy - varieties x environment - Wongan Hills R.S., Badgingarra R.S., Newdegate R.S., Mt Barker R.S. Lupin Agronomy - morphology x split seed – Mr J. wood, “Karakin”, Lancelin. Lupin Agronomy - Erregulla regeneration and rotation – Lancelin, Moora, Watheroo. Grain legume species comparison – 84ES1, 84LG38, 84MO10, 84ES1. Field pea evaluation – varieties. Aim: To compare the biological and seed yield adaptation to environment between morphological types of field pea. Field pea agronomy – 84KA18, 84LG25, 84ME42, 84MO33, 84MO34, 84N16, 84SG20, 84SG28. Sowing time x seed rate. Pea and wheat response to applied P – 84LG24, 84ME43, 84NO46, …
The Ecology Of Skeleton Weed .(Chondrilla Juncea L.) In Western Australia , Afghan Thistle (Solanum Hoplopetalum) Ecology, J. Dodd
Experimental Summaries - Plant Research
1. The ecology of skeleton weed .(Chondrilla juncea L.) in Western Australia - 84PE18 Seed production and water use in the glasshouse. 1.2 Seed production and water use of field-grown skeleton weed (84BA17, 84BA18). Water use. 1.3 Germination in relation to soil water content. 2. Afghan thistle (Solanum hoplopetalum) ecology. 2.1 Water relations (84N048). 2.2 Growth in Afghan thistle (84N050). 2.3 Afghan thistle reproductive biology (84N049, 84N063, 84PE19).
Comparison Of Conventional Boomspray And C.D.A. Equipment For Weed Control In Cereals, J R. Peirce, B. J. Rayner
Comparison Of Conventional Boomspray And C.D.A. Equipment For Weed Control In Cereals, J R. Peirce, B. J. Rayner
Experimental Summaries - Plant Research
l. 84N067 - Ryegrass
2. 84N068 - Capeweed
3. 84ME69 - Capeweed
4. 84 (40-41) - Ryegrass & Radish
5. C.D.A. - Capeweed
6. Boomspray Capeweed
Comparison of conventional boomspray and C.D.A. equipment for weed control in cereals – 84C40, 84C41, 84ME69, 84NO67, 84NO68.
Effectiveness of Roundup C.T. with and without crop oils applied through Controlled Droplet Applicators (C.D.A.) – Wongan Hills Research Station.
Effectiveness of Roundup C.T. with and without crop oils applied through a conventional boomspray – Wongan Hills Research Station.
Pasture Species Evaluation In The Medium Rainfall Zone, C W. Thorn, C K. Revell, S Davies, I Rose
Pasture Species Evaluation In The Medium Rainfall Zone, C W. Thorn, C K. Revell, S Davies, I Rose
Experimental Summaries - Plant Research
The effect of mechanical defoliation on the production of legume species in the Katanning region - 84KA26. The effect of grazing on the seed production of legume species - 84KA27. The effect of gypsum and establishment techniques on Circle Valley medic - 84KA29. The effect of gypsum, tillage and nitrogen on cereal yields in a continous crop system - 84KA28. The effect of gypsum on cereal crop yield - Katanning, E. Garlick Kwobrup, D. Webse. Pasture probe evaluation. Aim: To determine the suitability of the Vickery single probe earth plate capacitance meter for determining pasture production.
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
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
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
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. …
Low Rainfall Pasture Project, M. A. Ewing
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.
Nitrogen Flows From Several Species And Varieties Of Legume, John Hamblin Dr
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
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
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
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.
Soil Acidity Survey. Lime Responses In The Central Wheatbelt, P J. Dolling
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
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.
Ecology Of Skeleton Weed (Chondrilla Juncea) In Wa. Population Studies On Pennyroyal (Mentha Pulegium)., F D. Panetta
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
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
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
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.
Herbicide, Cereal, Wheat Tolerance. Weed, Melon, Paterson's Curse, Iceplant, Mesquite Cotton Bush Chemical Control, R Madin, A Lindsay
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).
Summary Of Experimental Results 1982/83., J. Hamblin
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.
Pasture Research Programme For The Medium Rainfall Zone Of Wa, P. Dixon
Pasture Research Programme For The Medium Rainfall Zone Of Wa, P. Dixon
Experimental Summaries - Plant Research
Pasture Research Programme for the Medium Rainfall Zone of W.A. - Species Selection and Management Related in Particular to the Ryegrass Toxicity Problem Since the early 1970's much of the ryegrass based pastures in the Pallinup region have been affected by Annual Ryegrass Toxicity (ARGT). Control of ryegrass by herbicides invariably leads to a reduction in the stock carrying capacity of the pasture since currently available legume species fail to grow or persist. This tendency is particularly evident on the hard setting loam soils of neutral to alkaline reaction. The aim of this project is to find alternative pasture species …