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Articles 1 - 30 of 48
Full-Text Articles in Life Sciences
Pilbara Coastal Flora, G F (Gillian Frances) Craig, P A. Hesp, T W. Rose, K Glennon
Pilbara Coastal Flora, G F (Gillian Frances) Craig, P A. Hesp, T W. Rose, K Glennon
Agriculture reports
The Pilbara coastal region is an area which will have increased human pressure both for work and recreation. In recent years, rapid expansion of townsites along the coast has meant that areas which were once stable have come under threat. Conservation measures will be needed to protect the coastline, and to ensure that the beauty of the coastal landscape: an be enjoyed by future generations.
Annean Station Management Plan, A A. Mitchell
Annean Station Management Plan, A A. Mitchell
Resource management technical reports
Annean Station's carrying capacity has been estimated at 8,340 sheep on its 168,539 hectares. The halophyte pastures of Carnegie Land System were in good condition while those of Mileura Land System were in poor condition. The wandarrie pasture of the Belele Land System was in fair to poor condition. This system comnprises 34 per cent of Annean's area and is estimated as capable of presently carrying 2,900 stock.
Toxic Ferns Of Western Australia, T E H Aplin, P Steele, M C. Nottle
Toxic Ferns Of Western Australia, T E H Aplin, P Steele, M C. Nottle
Technical Bulletins
Botanical descriptions and notes on the distribution of six species of ferns are given. These plants contain the enzyme thiaminase, which may induce thiamin deficiency, or other constituents toxic to animals. The clinical signs of both thiamin deficiency and fern toxicity in affected livestock are described.
Foliar Diseases Of Wheat, A. G. P. Brown
Foliar Diseases Of Wheat, A. G. P. Brown
Experimental Summaries - Plant Research
Leaf disease in the wheatbelt. Wheat leaf diseases were common north of Perth. They were severe in the Moora district and catastrophic in the northern wheatbelt. Yellow spot (Pyrenophora tritici-repentis) and glume blotch (Septoria nodorum) were the major pathogens in most areas with yellow spot exceeding glume blotch in area of leaf affected for the first time since surveys began in 1971. In the south dry conditions prevailed and diseases were hard to find. Figure 1 gives the distribution in the various zones for 1983 excluding the Esperance district which was not surveyed. Stress damage induced mostly by water stress …
Cercospora Disease Of Sub-Clover, M J. Barbetti
Cercospora Disease Of Sub-Clover, M J. Barbetti
Experimental Summaries - Plant Research
Cercospora disease of sub-clover. Fungicide control of cercospora disease on sub-clover. Aim: To determine the effectiveness of various times and rates of application of benomyl for control of Cercospora disease (Cercospora zebrina) in sub-clover cv. Esperance. Locality: Bibby Springs (83MO4). Fungicide control of cercospora disease on sub-clover. Aim: To determine the effectiveness of various fungicides for control of Cercospora disease (Cercospora zebrina) in sub-clover cv. Esperance. Locality: Bibby Springs (83M03). Role of seed contamination and infection in cercospora disease on sub-clover. Aim: To determine the role of Cercospora zebrina seed contamination and infection in spreading Cercospora disease of sub-clover. Locality: …
Oilseed Agronomy, A G. Mckay
Oilseed Agronomy, A G. Mckay
Experimental Summaries - Plant Research
Seeding rates for Wesbrook 83MT56 Interstate rapeseed variety testing 83MT47 Fusilade on rapeseed 83MT57 Triazine resistant rapeseed 83MT55 Rapeseed windrowing - time of harvest 83MA9
Annual Medics For The Kalgoorlie Region And Adjacent Eastern Rangeland Zones, G Gintzburger
Annual Medics For The Kalgoorlie Region And Adjacent Eastern Rangeland Zones, G Gintzburger
Experimental Summaries - Plant Research
Species selection and establishment methods Extensive overgrazing and burning of the dominant winter rainfall Goldfields pastoral zones have left large areas degraded with a poor annual vegetation cover of nearly no grazing value. Thus, more grazing pressure is exerted on shrubs and small trees accelerating the desertification process. Shrubs and trees are the main stabilising agent left in a rangeland plant community when alI annuals have been grazed out. In order to upgrade or regenerate some of these areas, conventional methods of grazing prohibition or deferred grazing can be used but often, improvement obtained are slow. It is hypothesized that …
Growth Regulators And Growth Promotants As Seed Treatments And Foliar Sprays, D Miers, M Perry
Growth Regulators And Growth Promotants As Seed Treatments And Foliar Sprays, D Miers, M Perry
Experimental Summaries - Plant Research
Rates and times of application of two chlormequat formulations – 83BA45, 83C33, 83E30, 83M35, 83MT43, 83N25, 83SG23, 83WH35. Seed treatments and foliar sprays for enhancement of growth and yield of wheat - 83BA44, 83BR22, 83C32, 83E29, 83M34, 83MT42, 83N25, 83NO55, 83SG22, 83TS37, 83WH34. Chlormequat for yield increase in lupins - 83BA46, 83WH36. Rates and times of kelpak on wheat - 83BA47, 83E32, 83MT44. Appendix Summary of data from A. Rates and times of two chlormequat formulations on wheat. B. Chlormequat for yield increase in lupins C. Seed treatments and foliar sprays for enhancement of growth and yield enhancement of wheat …
Molybdenum Nutrition, M M. Riley
Molybdenum Nutrition, M M. Riley
Experimental Summaries - Plant Research
Field Trials 1. Molybdenum and Ammonium sulphate on wheat - 81N040. 2. Foliar applications of Molybdenum on wheat - 83TS4. 3. Foliar applications of Molybdenum on wheat - 83ME7. 4. Residual value of Molybdenum on an acid soil. 81M2. Residual value of Molybdenum on an acid soil - 81LG12. 6. Residual value of Molybdenum on an acid soil - 83ME82. 7. Molybdenum responses in wheat and lupins - 83ME10. Glasshouse Trials; 1. The response of wheat to Molybdenum on eleven acid sandy soils - 83GL1. 2. Leaching of Molybdenum - 83GL2.
Soil Acidity - High Rainfall Pastures, J S. Yeates, D. A. Mcghie, D A. Tooke, M. F. Clarke
Soil Acidity - High Rainfall Pastures, J S. Yeates, D. A. Mcghie, D A. Tooke, M. F. Clarke
Experimental Summaries - Plant Research
A. Lime on old land pastures. 80BU13, 80BU14, 80BU15, 80BU16, 80BU17, 80BY7, 80BY16, 81AL10, 81AL11, 8IAL12, 81AL13, 81AL14, 81AL15, 81AL16, 81BU18, 81BY15, 81BY16, 81BY17, 81BY18, 81BY19, 81BY24, 81BY25, 81BY16, 81MA12, 81W9, 81Wl0, 81Wll, 82AL2, 82AL3, 82AL4, 82ALS, 82AL6, 82ALSS, 82BU6, 82BU7, 82BU8, 82BY37, 82HA35, 82HA36, 82HA38, 82MA20, 82PE1, 83AL7, 83AL8, 83AL9, 83AL10, 83AL11, 83AL12, 83AL13, 83AL14, 83BU20, 83BU24, 83BU25, 83BU26, 83BY29, 83HA19, 83HA40, 83HA41.
B. Lime on new land pastures 82AL7, 82AL8.
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 – 80AL1, 80AL4 (1980), 80AL4 B (established 1983). Sulphur rundown on heavy soils - 80BY1. Sources, rates, time of application of sulphur to pastures - 80AL1, 80AL4, 80AL4B. Sources, rates, time of application of sulphur to legume pastures – 80AL1, 80AL4, 80AL4B. Sulphur nutrition of pastures. 83PE36. B. Sulphur - Low Rainfall – 82AL9, 80JE16/17 82KA4. Sulphur on pastures - 80JE16/17, 82AL9, 82KA4. Sulphur on absorbing soils receiving no current S input – 80BY1. C. Potassium. Sources, rates, time of application of potassium on high rainfall deep sand pastures - 80AL3, 80AL6.
Project Aquarius (Csiro) : The Effects Of Bushfires On Honey Production : Submission And Comments To The Federal Council Of Australian Apiarists' Associations, R C. Burking, A. C. Kessell
Project Aquarius (Csiro) : The Effects Of Bushfires On Honey Production : Submission And Comments To The Federal Council Of Australian Apiarists' Associations, R C. Burking, A. C. Kessell
Apiculture research reports
No abstract provided.
Pasture Trials Of Esperance, M D. Bolland
Pasture Trials Of Esperance, M D. Bolland
Experimental Summaries - Plant Research
(82ES55) - Serradella Co X N trial. R. Burchell, Myrup. Aim: To determine whether Co or low winter temperatures limit the growth of serradella in winter months. (83ES46) - Serradella N trial. High School block, Neribup. Aim: To test whether dry matter production of serradella and subterranean clover are limited by symbiotic nitrogen fixation in mid winter. (82ES46) - T brachycalycinum burr burial trial. J. Royle, Condingup. Aim: To determine the importance of burr burial for T. brachycalycinum for the formation of burrs and seed.
Studies On The Effects Of Nutrition And Tillage Systems On Cereal Root Diseases, R F. Brennan
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.
Sources Of Phosphate Trials. Miscellaneous Trials, J W. Bowden, R J. Lunt, M Baker
Sources Of Phosphate Trials. Miscellaneous Trials, J W. Bowden, R J. Lunt, M Baker
Experimental Summaries - Plant Research
I. Sources of Phosphate Trials. Cropping Trials: (80BA6) - Deep sand, Badgingarra, Lupins. (77WH2) - Gravel, old land, WHRS, Wheat. (76WH9) - WLS, new land, WHRS, Wheat (1982). (76WH10) - WLS, young land, WHRS Wheat (1982). (77MT2) - Loamy gravel, old land, Mount Barker Oats. Pasture trials: (77MT1) - Loamy gravel, new land, Mount Barker. (77E1) - Sandy gravel, new land, Esperance. (77E4) – [78E4?] Sandy gravel, old land, Esperance. II. Miscellaneous Trials Long term trials. 66M30 - Super x stocking rate at Merredin. 48M/149 EX - Residual super trial at Merredin. 65A1, 65C5 and 69WH15 - Maintenance P x …
Chemical Efficacy Trials, E Carter
Chemical Efficacy Trials, E Carter
Experimental Summaries - Plant Research
Please find attached summaries for the following six chemical efficacy trials:- 83PE51 - Control of powdery scab of potatoes. 83MD7 - Control of early blight of tomatoes. 83MD11 - Control of sclerotinia in lettuce. 83MD12 - Control of secondary black rot in cabbage. 83MD13 - Control of tuber-borne Rhizoctonia solari of potatoes. 83MD14 - Control of downy mildew of onions. The following trial has not yet been harvested:- 83MD15 - Chemical control of onion smudge.
Seed Ecology Of Weeds. Calotropis/Buffel Grass Interactions, A H. Cheam
Seed Ecology Of Weeds. Calotropis/Buffel Grass Interactions, 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 …
Phosphorus Nutrition Of High Rainfall Pastures - Peel Harvey Estuarine System Study (Phase Ii) And Related Phosphorus Work, D M. Deeley, J S. Yeates, B. Barker, M F. Clarke
Phosphorus Nutrition Of High Rainfall Pastures - Peel Harvey Estuarine System Study (Phase Ii) And Related Phosphorus Work, D M. Deeley, J S. Yeates, B. Barker, M F. Clarke
Experimental Summaries - Plant Research
A. Sources, rates, time of application of phosphorus on high rainfall pastures. 80AL2, 80AL5, 81AL5, 81AL6, 81KE2, 81MA4, 82AL10, 82HA31, 82HA32, 83HA26, 83HA27. B. Soil test calibration curve trials on Bassendean sands. 82HA20, 82HA21, 82HA22, 82HA23, 82HA24, 82HA25, 82HA26, 82HA27, 82HA28, 82HA29, 82HA30. C. Soil test calibration curve trials on Coolup sands. 83HA20, 83HA21, 83HA22, 83HA23, 83HA24, 83HA25. D. Phosphorus rundown. 82HA14, 82HA15, 82HA16, 82HA18. NOTE: Summary is in two parts. 1. Peel Harvey catchment program (Deeley, Barker). 2. General program on high rainfall sandy soils (Yeates, Clarke). Summary of Experimental Work. General Aims. The work summarized here was commenced …
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 …
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.
Organic Matter As A Source Of Nitrogen, N Delroy, R Deyl
Organic Matter As A Source Of Nitrogen, N Delroy, R Deyl
Experimental Summaries - Plant Research
The trials can be put into three groups: 1. Plus and minus ripping by species by bag nitrogen. This trial had a number of different species grown in 1982 and half of the trial was ripped in 1983 and the whole site sown to wheat with different rates of nitrogen applied to the subplots. Part of the information on the trial is contained in Bill Bowden's 1983 summary. 2. Species and management trials, namely 82LG5, 82Nl7, 82N041 and 82N03. 3. These trials had a number of different species grown in 1982 to which a number of management factors were applied …
Doublegee Dormancy. Lupins. Lupin Varieties Tolerance Of Simazine. Lupins Ssh 0860. Peas - Broadleaf Weed Control, D J. Gilbey, R Klemm
Doublegee Dormancy. Lupins. Lupin Varieties Tolerance Of Simazine. Lupins Ssh 0860. Peas - Broadleaf Weed Control, D J. Gilbey, R Klemm
Experimental Summaries - Plant Research
1. Doublegee dormancy. 2. Lupins - capeweed control. 3. Lupins - self sown cereal competition. 4. Lupins - simazine/trifluralin. 5. Lupins - diuron/trifluralin. 6. Lupins - simazine/metribuzin. 7. Lupins - simazine on gravel soils. 8. Lupin varieties tolerance of simazine. 9. Lupins SSH 0860. 10. Lupins - SSH 0860/metribuzin. 11. Lupins - SSH 0860/diuron. 12. Lupins - SSH 0860/simazine. 13. Lupins - SSH 0860 time of spraying. 14. Lupins - radish control. 15. Lupins - grass control. 16. Peas - broadleaf weed control. Doublegee seed longevity x depth - 76C9 - Chapman. Research Station. 76KA8 – Katanning townsite. Capeweed control …
Water Use Of Wheatbelt Crop And Pasture Species, A Hamblin, D Miers, R Nulsen, M Perry, D Tennant
Water Use Of Wheatbelt Crop And Pasture Species, A Hamblin, D Miers, R Nulsen, M Perry, D Tennant
Experimental Summaries - Plant Research
Water use of wheatbelt crop and pasture species Location: 83WH29 - Wongan Hills Research Station, Wongan Hills Abstract. A comprehensive experiment to investigate the productivity and water use of important wheatbelt crop and pasture species was undertaken in 1983. The experiment has provided important information on potential crop and pasture productivity and the role of alternate crop and pasture species in managing groundwater recharge and the development of secondary salinity. Contents 1. Background and industry significance 2. Aims of the experiment 3. Personnel 4. Site characterisation 5. Experimental detail 6. Results i) Meterological data ii) Dry matter, leaf area and …
Ryegrass, Barley, Wildoats, Isoproturon, Kerb, Glean, Silver Grass, Brome Trials, Hoegrass, J. E. Holmes, R L. Thomas
Ryegrass, Barley, Wildoats, Isoproturon, Kerb, Glean, Silver Grass, Brome Trials, Hoegrass, J. E. Holmes, R L. Thomas
Experimental Summaries - Plant Research
1983 Summary – trials reported. 83ME48 - Ryegrass - Glean and Hoegrass 83ME68 A&B - Barley Grass - Glean, Bladex 83ME69 - Brome Grass - Herbicides 83ME70 - Barley Grass - Mixtures 83ME71 - Wildoats Herbicides 83ME72 - Timing Spraying Ryegrass 83ME73 - Isoproturon - Barley Grass 82BA46 - Kerb Residues 82N40 - Kerb Residues 83N38 - Glean on Oats 83N39 - Efficiency of SSH on Barley Grass 83N40 - Barley Grass Effect on Crop Density 83N41 - Silver Grass Competition 83N42 - Brome Control by SSH 0800 Affected by crop Density 83N43 - Silver Grass Herbicides 83N50 - Hoegrass …
Summary Of Medic-Rhizobium Field Experiments, J G. Howieson
Summary Of Medic-Rhizobium Field Experiments, J G. Howieson
Experimental Summaries - Plant Research
83ME9 - Nutrition of R. meliloti in acid soil. - Meaningful results only available in 1984/85 Summary of Medic-Rhizobium Field Experiments 1983/84. 83ME87 - Effect of pH of culture conditions on survival in, and colonisation of, an acid soil by R. meliloti. - Meaningful results available 1984/85. (82ME22, 82ME22A, 82ME23) Survival and colonisation of acid soils by 18 strains of R. meliloti in association with 6 Medicago hosts. - Results discussed in this summary.
Long Term Minimum Tillage Investigations. Stubble Management Techniques. Deep Ripping., R J. Jarvis
Long Term Minimum Tillage Investigations. Stubble Management Techniques. Deep Ripping., R J. Jarvis
Experimental Summaries - Plant Research
Long term minimum tillage Investigations (i) Continuous cropping (page 4) – 77A16, 77E18, 77M13, 78M25, 77MT15, 77WH17, 78BA42. (ii) Rotational sites (page 15) – 77A43, 77E52, 77M56, 77MT51, 77WH88, 82M35. Stubble management techniques (page 23) – 79M7, 79WH6, 82LG4, 82M34. Deep ripping (page 27) - 77WH17, 80A44, 80NO46, 81LG3, 81M45, 81M53, 81NO3 & 4, 82GE37 & 38, 82GE38, 82M61, 82M25, 82M31, 82M32, 82M46, 82M60, 82N32, 82NO48 & 49, 82NO50 & 51, 82WH49, 83JE26, 83NO69. Direct drilling – continuous cropping – 83NA37 (a), 83NA37 (b), 83NA38. Deep ripping (or “deep loosening”) – 79MO19, 83TS41, 83TS42.
Barley Foliage Diseases, T N. Khan, K. Brain, M Judges
Barley Foliage Diseases, T N. Khan, K. Brain, M Judges
Experimental Summaries - Plant Research
General comments and highlights
Scald: Effect of time of application - 83BA10, 83MT9.
Scald: Effect of rate of fungicide – 83BA11.
Scald: Comparing fungicides – 83BA42.
Scald: Effect of seeding rate – 83BA12, 83MT10.
Scald: Response to fungicide in farmer's field – 83AL18, 83AL81, 83AL82.
Scald: Variation in pathogenicity – 83AB11, 83BA13, 83MT11, 83WH7.
Scald: Cultivar x fungicide in farmer's field – 83LG63.
Net Blotch: Potential yield losses – 83A15, 83BA15, 83WH6.
Net Blotch: Screening new fungicides – 83BA43.
Spot-type net blotch: Potential yield losses – 83C5.
Spot-type net blotch: Sources of resistance - Chapman Research Station, Nabawa.
Powdery mildew …
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).
Plant Viruses, G D. Mclean
Plant Viruses, G D. Mclean
Experimental Summaries - Plant Research
1. Alfalfa mosaic virus: incidence in white clover. McLean, G.D., Weir, J.A., Russell, W.K., Speijers, E.J. and Price, L.K. - 83HA30, 83HA31, 83HA32, 83HA33, 83HA34, 83HA35, 83HA36, 83HA37, 83HA38, 83HA39. 2. Alfalfa mosaic virus: re-infection in white clover. McLean, G.D., Weir, J.A., Russell, W.K., Price, L.K. and Speijers, E.J. – 83HA43, 43HA44, 43HA45, 43HA46, 83HA47, 83HA48, 83HA49, 83HA50, 83HA51, 83HA52. 3. Lettuce necrotic yellows virus: incidence. McLean, G.D., Phillips, D.R., Speijers, E.J. Sandow, J.S. and Price, L.K. – 83PE21, 83PE22, 83PE23, 83PE24, 83PE25, 83PE26, 83PE27, 83PE28, 83PE29, 83PE30.
Nitrogenous Fertilizers For Cereals, M G. Mason
Nitrogenous Fertilizers For Cereals, M G. Mason
Experimental Summaries - Plant Research
Effect of stubble treatment on nitrogen fertiliser requirement; Chapman Research Station, Nabawa - 78C3, Merredin Research Station – 78M2. Long term stubble burning demonstration; P. Archer, Pithara - 82MO30, L. and C. Crane, Bindi bindi – 82MO31. Evaluation of the nitrification inhibitor – DIDIN; P. Appleyard, Sth. Eneabba – 83TS2, Badgingarra Research Station – 83BA3, J. Delagastino – 83BY30, Mullalyup. J. McLean, Metricup – 83BU5, B. Batley, Willyabrup - 83BU6, Esperance Downs Research Station, Gibson – 83E2, Mr Atkins, Broomehill – 83KA43. Effects of Agras No. 1 on soil pH and wheat yield; Wongan Hills Research Station – 80WH3, Merredin …