Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Life Sciences (1273)
- Earth Sciences (1090)
- Soil Science (1021)
- Plant Sciences (815)
- Environmental Sciences (763)
-
- Agronomy and Crop Sciences (679)
- Weed Science (362)
- Oceanography and Atmospheric Sciences and Meteorology (353)
- Natural Resources Management and Policy (333)
- Agriculture (315)
- Water Resource Management (273)
- Fresh Water Studies (261)
- Sustainability (190)
- Animal Sciences (179)
- Environmental Monitoring (168)
- Hydrology (166)
- Natural Resources and Conservation (148)
- Environmental Indicators and Impact Assessment (126)
- Aquaculture and Fisheries (98)
- Chemistry (92)
- Organic Chemistry (68)
- Natural Resource Economics (66)
- Inorganic Chemistry (61)
- Business (56)
- Social and Behavioral Sciences (56)
- Biodiversity (52)
- Ecology and Evolutionary Biology (47)
- Agricultural Economics (43)
- Business Administration, Management, and Operations (39)
- Institution
- Publication
-
- Experimental Summaries - Plant Research (582)
- Journal of the Department of Agriculture, Western Australia, Series 4 (325)
- Resource management technical reports (269)
- Bulletins 4000 - (86)
- Fisheries management papers (66)
-
- Agriculture reports (36)
- Native vegetation handbook series (29)
- All other publications (28)
- Land resources series (22)
- Technical Bulletins (19)
- Journal of the Department of Agriculture, Western Australia, Series 3 (18)
- Natural resources published reports (16)
- WA Marine Stewardship Council report series (15)
- Fisheries research reports (12)
- Theses: Doctorates and Masters (9)
- Books & book chapters (5)
- Research outputs 2014 to 2021 (5)
- Climate Science Published Reports (4)
- Apiculture research reports (3)
- Bulletins - 3000 - 3999 (3)
- Crop Updates (3)
- Research Reports (3)
- Faculty of Science - Papers (Archive) (2)
- Land resources best practice series (2)
- Research outputs 2022 to 2026 (2)
- Research outputs pre 2011 (2)
- Animal production research reports (1)
- Archival Publications (1)
- Biosecurity published reports (1)
- Earth Science Faculty Scholarship (1)
Articles 1021 - 1050 of 1581
Full-Text Articles in Physical Sciences and Mathematics
Sulphur Nutrition Of Pastures. Potassium Nutrition Of High Rainfall Pastures On Deep Sands, J. S. Yeates, M. F. Clarke
Sulphur Nutrition Of Pastures. Potassium Nutrition Of High Rainfall Pastures On Deep Sands, J. S. Yeates, M. F. Clarke
Experimental Summaries - Plant Research
A. Sulphur - High Rainfall. 1. Sources, rates, time of application of sulphur to pastures - 80AL1, 80AL4, 80AL48. 2. Sulphur nutrition of pastures - 83PE36. 3. S sources and rates on sandy soils of the high rainfall areas - 84HA20, 84HA27. 4. Maintenance of S on pastures on sandy soils - 84AL35, 84HA19, B4HA26. B. Sulphur - Low Rainfall. 1. Sulphur on pastures - 82AL9, 82KA4. C. Potassium. 1. Sources, rates, time of application of potassium on high rainfall deep sand pastures - 80AL6.
Soil Acidity In The Eastern Wheatbelt, W M. Porter, I. R. Wilson
Soil Acidity In The Eastern Wheatbelt, W M. Porter, I. R. Wilson
Journal of the Department of Agriculture, Western Australia, Series 4
In Western Australia parts of the sandplain of the eastern wheatbelt are very acid and produce poor crops, It was not until the late 1970s that the effect of soil acidity on the productivity of the sandplain soils was examined in any detail.
Since then researchers have learnt a great deal about the nature of soil acidity in the eastern wheatbelt sandplain soils and can suggest management options for farmers.
This article discisses the problem of the very acid soils. It does not deal with the moderately acid, medium textured soils of the eastern wheatbelt. Although the acidity of these …
Phosphorus Nutrition, M D A Bolland, M J. Baker
Phosphorus Nutrition, M D A Bolland, M J. Baker
Experimental Summaries - Plant Research
Trial No.: 84E31 Location: Esperance Downs Research Station.Results: Fertilizer: TSP = triple superphosphate; NCRP = North Carolina rock phosphate; DRP = Duchess rock phosphate. Cultivation: UC = fertilizer applied to the soil surface and left there: C = fertilizer cultivated into the top 10 cm of soil with a rotary hoe after application to the soil surface. Trial No.: 84M63. Location: South Bodallin (Merredin Research Station). Results: TSP = triple superphosphate; NCRP = North Carolina rock phosphate; DRP = Duchess rock phosphate. UC = fertilizer applied to the soil surface and left there; C = fertilizer mixed in to the …
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.
Feral Donkeys : An Assessment Of Control In The Kimberley, S H. Wheeler
Feral Donkeys : An Assessment Of Control In The Kimberley, S H. Wheeler
Journal of the Department of Agriculture, Western Australia, Series 4
Feral donkeys are one of the major limitations to increased pastoral production in many parts of the Kimberley area of Western Australia, where they compete with cattle for food. In addition donkeys are aggressive animals, driving cattle from watering points and better grazing areas. They eliminate perenial plants by overgrazing and therefore reduce the carrying capacity of the range.
Originally introduced as draught animals, donkeys were released when cars arrived; since then they have bred up to large numbers in many areas.
For several years the Agricultural Protection Board has undertaken a programme of donkey shooting from helicopters. Since this …
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.
Lupin Growth And Water Use; Wheat, Barley, Pea, Rob Delane, J. Hamblin, A Bishop Ms
Lupin Growth And Water Use; Wheat, Barley, Pea, Rob Delane, J. Hamblin, A Bishop Ms
Experimental Summaries - Plant Research
84C16/84C17 Lupin Growth and Water Use. 84C19 Effect of Density and Nitrogen on Growth and Yield of Uniculm and Tillering Wheat. 84C20 Maturity, Nitrogen and Density Effects of Barley. 84C21 Wheat Variety Trial. 84C18/23/28/33 Pea Research in the Geraldton Region. 84C32 Effect of Terra Sorb on Wheat Yield.
Clover, Bluegreen Aphid And Red Legged Mite Screening, Medicago Murex Evaluation, D J. Gillespie
Clover, Bluegreen Aphid And Red Legged Mite Screening, Medicago Murex Evaluation, D J. Gillespie
Experimental Summaries - Plant Research
Clover scorch: In spite of poor seasonal conditions, adequate levels of clover scorch developed in the test plots to readily identify susceptible clovers. Of the 333 introductions tested, 23% scored 3.0 or less indicating a high level of resistance. Bluegreen aphid screening: Two hundred and twenty four randomly selected subterranean clovers from all Western Mediterranean collections were tested for resistance to BGA in Nov/Dec of 1983. The susceptibility of annual legumes to Bluegreen aphid. Red legged earth mite screening: Results of two preliminary experiments to develop techniques for mass screening for RLEM resistance in subterranean clover were reported last year. …
Manganese Nutrition Of Cereals, J W. Gartrell
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.
Investigation Of Root And Foliar Diseases Associated With Decline In Wheat Yields On Sandplain, Jill Wilson
Investigation Of Root And Foliar Diseases Associated With Decline In Wheat Yields On Sandplain, Jill Wilson
Experimental Summaries - Plant Research
A Wheat Industry Research Council Project. In 1984 research was conducted in collaboration with Dr John Hamblin, Dr Allan Brown, Mr Rob Delane and Dr Mark Sweetingham. 1. Field Trial (GE84Cl5): Interactions between disease and agronomic factors, particularly rotation with lupins, and deep tillage. ( i) Yields, (ii) Incidence of root diseases, (iii) Root length and diseased root length, (iv) Leaf disease. 2. Farm Survey (sites from trial 84GE57 of Dr Allan Brown) Incidence of Common Root Rot
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.
Alternative Land Uses, D A. Morrison, B. C. Mattinson
Alternative Land Uses, D A. Morrison, B. C. Mattinson
Journal of the Department of Agriculture, Western Australia, Series 4
One aproach to minimise the high nutrient content and associated algal pollution of the Peel-Harvey estuarine system is to reduce phosphorus losses at their source. Farmers can do this by changing land use is such a way thar phosphorus run-off fromthe catchment soils into drainage is prevented or at least reduced.
The department of Agriculture is investigating the economics of alternative uses, particularly substituting forestry with Pinus pinaster or Eucalyptus globulus (Tasmanian blue gum) for present beef and sheep enterprises. P. pinaster is used for logging and E. globulus for pulping.
Relative Crop Yields On Different Soil Types, Pea And Lupin, R French
Relative Crop Yields On Different Soil Types, Pea And Lupin, R French
Experimental Summaries - Plant Research
1. Relative crop yields on different soil types - 84M50, 84M51, 84M52, 84M53. 2. Pea and lupin time of sowing trials - 84JE42, 84LG32, 84LG31, 84ME55, 84ME53, 84ME54, 84N065. 3. Effect of P-Pickel on Pea Nodulation - 84M64. 4. Lupin Agronomy - 84M55, 82ME52.
Cercospora Disease Of Subterranean Clover, Root Rot, Cereal Smuts, Rapeseed Diseases, M J. Barbetti
Cercospora Disease Of Subterranean Clover, Root Rot, Cereal Smuts, Rapeseed Diseases, M J. Barbetti
Experimental Summaries - Plant Research
Cercospora disease of subterranean clover: - . Susceptibility to and losses from cercospora on sub-clover cultivars. Locality: Bibby Springs, Cervantes. (84M073, 84M075, 84M076). Subterranean clover root rot: - Seed treatments for root rot control. Locality: Albany (84AL39); Scott River (84 BU11). Fungicide drenches for root rot control. Locality: Perth (84PE22) using intact cores from Albany and Scott River. Cultivar screening for resistance to root rot fungi. Locality: Perth (84PE24) with field plantings at Albany and Scott River. Methyl bromide fumigation for control of sub-clover root rot. Locality: Vasse Research Station (84V15). Two sites. Cereal smuts – Fungicidal control of loose …
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 …
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.
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.
Soil Acidity In The Eastern Wheatbelt, W Porter, S Carr, J Garlett
Soil Acidity In The Eastern Wheatbelt, W Porter, S Carr, J Garlett
Experimental Summaries - Plant Research
1. Surface incorporated lime: 80M30 - Wheat. 82ME54 - Lupins. 82TS33 - Wheat. 80M31 - Wheat. 81M5 - Medic. 2. Subsoil banded lime: 81M54 - Lupins. 3. Whole profile incorporated lime: 82M5 - Wheat. 82ME10 - Wheat. 4. Acid tolerant species: 84ME50 - interaction with N. 84ME51 - interaction with PP. 84ME52 - growth on non-acid sand.
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 …
Phosphorus Nutrition Of High Rainfall Pastures - Peel Harvey Estuarine System Study, J S. Yeates, D M. Deeley, M. F. Clarke, R A. Deyl, G. Cockerton
Phosphorus Nutrition Of High Rainfall Pastures - Peel Harvey Estuarine System Study, J S. Yeates, D M. Deeley, M. F. Clarke, R A. Deyl, G. Cockerton
Experimental Summaries - Plant Research
1. Field experiments. A. Sources, rates, time of application of phosphorous on high rainfall Pastures - 80AL2, 80ALS, 81AL5, 81AL6, 81KE2, 81MA4, 82AL10, 82HA31, 82HA32, 83HA26, 83HA27. B. Soil test calibration curve trials. 82HA20, 82HA26, 82HA29, 83HA20, 83HA21, 83HA22, 83HA23, 83HA24, 83HA25. C. P sources and rates on sandy soils of the high rainfall areas - 84AL33, 84AL34, 84HA18, 84HA25. D.Maintenance P trials - 84AL32, 84HA17, 84HA24, 84HA28. 2.Glasshouse Experiments. 84GL5 - 1. Phosphorus sources on subterranean clover on sandy soils. 2. Soil test calibration experiment.
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 …
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.
Pleiochaeta Soil Survey, M Sweetingham
Pleiochaeta Soil Survey, M Sweetingham
Experimental Summaries - Plant Research
1. Pleiochaeta soil survey - Moora District, March 1984. 2. Lupin root rot trials - 84A40, 84BA26, 84GE50, 84GE56, 84MO82, 85NO59, 84WH28. 3. Fungicides for Rhizoctonia patch control - 84E25, 84E28. 4. 83WH29 : Effect of rotation on wheat diseases. 5. Root disease in long term wheat-lupin rotation trials - 68E5, 79GE37, 80TS2, 81LG29, 82M26.
Long Term Pasture Manipulation Trials, C W. Thorn, C J. Stockdale
Long Term Pasture Manipulation Trials, C W. Thorn, C J. Stockdale
Experimental Summaries - Plant Research
A.W.I.R.C Project 498/0029 Pasture manipulation on the Esperance sandplain. Introduction In 1981 a 2 pasture: 1 crop rotation trial incorporating four pasture manipulation treatments was commenced on the Esperance Sandplain to determine: 1. the effect of herbicide manipulation of pasture composition on pasture and animal production. 2. the effect of grass control on take-all levels in a following cereal crop. 3. the effect of grass control on desicantha weevil levels in a following cereal crop. Rotation trial for wheat comparing a pure clover ley with a mixed pasture ley on the Esperance sandplain - Esperance Down Research Station. The effect …
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 …
Brown Spot Of Lupins, P Mcr Wood
Brown Spot Of Lupins, P Mcr Wood
Experimental Summaries - Plant Research
Fungicide treatment of lupin seed - 84WH34. Effect of cereal stubble treatment on brown spot - 84WH27. Effect of Rovral sprays on brown spot - 84N056, 84NO57. Effect of sowing date and seed treatment - 84BA26, 84WH28. The effect of Rovral seed treatment on brown spot on farmers' lupin crops. Site: Three Springs, Marchagee, North Gabin, Wannamal.
Trace Element Nutrition, M M. Riley, J W. Gartrell, R. F. Brennan
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 …
Algal Problems Of The Estuary, E. P. Hodgkin, P. B. Birch
Algal Problems Of The Estuary, E. P. Hodgkin, P. B. Birch
Journal of the Department of Agriculture, Western Australia, Series 4
The Peel-Harvey esturine system study began in 1976 because people living near Peel Inlet complained about the accumulation of water weeds and algae on the shores and the smell of hydrogen sulphide (rotton egg gas) that resulted from their decomposition. From 1974 efforts had been made to control this 'algal problem' by raking up the weed with tractors and carting it away. This 'cosmetic activity had little impact on the problem.
The immediate cause was obvious: a carpet of green algae covering about 20square kilometres of the bottom of Peel Inlet. From time to time this 'goat weed' floated to …
Tackling The Problem Off The Farm, C M. Croft
Tackling The Problem Off The Farm, C M. Croft
Journal of the Department of Agriculture, Western Australia, Series 4
Methods of redusing phosphorus losses from the catchment soils of the Peel-Harvey esturine system have been discussed in other articles in this Journal.
This article briefly discusses a range of 'off the farm' techniques to improve phosphorus flushing from Peel Inlet or Harvey Estuary to the sea and to treat the phosphorus and the algae. These techniques were among more than 100 management options evaluated by the Peel-Harvey Study Group.
Algal Growth And The Phosphorus Cycle, Arthur J. Mccomb, K. S. Hamel, A. L. Huber, D. K. Kidby, R. J. Lukatelich
Algal Growth And The Phosphorus Cycle, Arthur J. Mccomb, K. S. Hamel, A. L. Huber, D. K. Kidby, R. J. Lukatelich
Journal of the Department of Agriculture, Western Australia, Series 4
Larger algae and microscopic phytoplankton foul the waters of the Peel-Harvey estuarine system, upsetting the fishery and polluting the beaches.
These aquatic plants grow in response to phosphorus runoff from drainage, trapping phosphorus in the estuary and using it in their growth. When they die this phosphorus remains in the system to be recycled for further plant growth.
Algal pollution in the estuary can be lessened by reducing the amount of phosphorus entering the system, increasing phosphorus losses to the ocean, or in some way blocking the trapping and recycling processes.