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Articles 1831 - 1860 of 2355
Full-Text Articles in Physical Sciences and Mathematics
A. Inoculum Of The Take-All Fungus And Prediction Of Take-All. B. Hypovirulent Strains And Control Of Take-All., K Sivasithamparam
A. Inoculum Of The Take-All Fungus And Prediction Of Take-All. B. Hypovirulent Strains And Control Of Take-All., K Sivasithamparam
Experimental Summaries - Plant Research
Contents: A. Inoculum of the take-all fungus and the prediction of take-all. 1. Time of sampling 1a Newdegate 1b Badgingarra 1c Kulin 2. Inoculum from grass and wheat residues - Esperance. 3. Hypovirulent strains and control of take-all 3a Esperance, 3b Newdegate. Results from the preliminary studies which commenced in 1978 have shown several interesting trends in the behaviour of the field inoculum of the take-all fungus (TAF). "Disease severity Assay" has emerged as a potentially useful assay of field soil. This assay reflects the level of disease severity (on a 0-5 scale) caused by the resident inoculum of the …
Pasture Species Research, C. M. Francis
Pasture Species Research, C. M. Francis
Experimental Summaries - Plant Research
EARLY MATURING MEDICS Early maturing Libyan lines with some tolerance to bluegreen aphids were sown at 6 sites, five in Western Australia and one in South Australia. Seed yield and hard seed data are currently being collated. Maturity and vigour was assessed at all sites and many of the new introductions are earlier than cv. Harbinger and its equal in vegetative growth. A much larger range (300 lines) was grown at Medina and will be introduced into country sites next year.
Kabatiella Research. In cooperation with Dr. D.L. Chatel, screening of introductions for resistance to Kabatiella caulivora continued in 1980. …
General Phosphorus Trials, R J. Lunt, J. W. Bowden
General Phosphorus Trials, R J. Lunt, J. W. Bowden
Experimental Summaries - Plant Research
The trial programme of past years was considerably reduced in size because of the absence of J.W. Bowden (Research Officer). Further, extensive drought conditions in the W.A. agricultural areas wiped out several trials.
INDEX Super x stocking rate trial 66M30. Maintenance P x S trials 65Al, 65C5, 65N5, 69WH15. Residual Value of Phosphorus 75LG26, 77NA4, 78BA7, 79N05, 79JE8 & 9.
Times and Methods of Application 80M7, 8OM6, 80WH9, 80MO7.
Land Capability Study Of (Sandy) Soils, North West Of The Ivanhoe Plains, Kununurra, W.A, Jim Dixon, W F. Holman
Land Capability Study Of (Sandy) Soils, North West Of The Ivanhoe Plains, Kununurra, W.A, Jim Dixon, W F. Holman
Land resources series
This survey was concducted at the request of Colonial Sugar Refineries as a co-operative effort involving the West Australian State Government Departments of Agriculture and Lands and Surveys. C.S.R. are investigating the feasibility of sugar cane production in the Ord River Project Irrigation Area. Part of the project could involve cane production on currently undeveloped sandy soils held under pastoral lease. The object of developing sandy soils is twofold:- i) the sandy soils will require overhead irrigation and it will be possible to mix industrial wastes with the irrigation waters for disposal; ( ii) sandy soils should be trafficable sooner …
Wheat Potential Yield Trials., M. W. Perry
Wheat Potential Yield Trials., M. W. Perry
Experimental Summaries - Plant Research
Contents: 1. Wheat Potential Yield Trials. 80BA4 - Cooperative project with R.N. Weir. 80KA7, 8OWH8 D. Tennant and A.G.P. Brown. Detailed summary issued as a separate report. 2. Yield Analysis of Historically Important Wheats 80WH6, 80M4*, 80C2, 80N4* 80WH7, 80M5*, 80A3, 80SG20. 3. Cereal Seeding Rates for the Eastern Wheatbelt. 80ME5*, 80M6*. 4. Intensive Wheat Production Trials (Seeding Rates x Cycocel x Nitrogen xSeptoria Control) 80M038, 80N042, 80MT4, 80N041, 80KA34. 5. Alternative Crop Trials - High Rainfall 80MA7, 80MA8. 6. Regenerating sandplain Lupin Rotation Trials 79GE38/SOGE12 , 79GE42/80GE13. 7. Miscellaneous Trials i) Early Seeding of Late Maturing Varieties - 80MT5. …
1. Doublegee Seed Dormancy. 2. Lupins - Weed Control. 3. Lupins - Minimum Tillage Weed Control. 4. Doublegee Control In Pasture. 5. Crabgrass Control In Seedling In Lucerne. 6. Crabgrass Control In Vines., D J. Gilbey
Experimental Summaries - Plant Research
Doublegee seed longevity x cultivation - 75WH65. Doublegee seed longevity x depth - 76C9, 76KA8, 75WH66. Lupin variety tolerance to herbicides - 80C28-33, 80GE45-50, 80MO24-29, 80TS33-38. Tolerance of yandee lupins to herbicides - 80A38. Post emergence weed control in lupins - 80M034. Sprayseed - simazine combinations for minimum tillage lupins – 80MO21, 80TS29, 80GE40. Doublegee control in pasture – 80MO33, 80NO36. Crabgrass control in seedling lucerne - 80KE7. Crabgrass control in vines - 80SR1.
Pasture Manipulation - Grass Control The Year Prior To Cropping, C W. Thorn
Pasture Manipulation - Grass Control The Year Prior To Cropping, C W. Thorn
Experimental Summaries - Plant Research
Pasture manipulation - grass control the year prior to cropping. Aim 1. To measure the effects of various grass control treatments on pasture production and composition in the spraying year. 2. To measure the effects of grass control on wheat. Trial – 80MO41, 80MO40, 80AB2.
Scald, Blotch And Powdery Mildew General Comments And Highlights, T. N. Khan
Scald, Blotch And Powdery Mildew General Comments And Highlights, T. N. Khan
Experimental Summaries - Plant Research
Locations - Avondale, Badgingarra, Mount Barker I. General Comments and Highlights. II. SCALD: Crop Loss Assessment - 80BA25, 80MT24. III. SCALD: Field Inoculation - 80A28. 80BA26. IV. SCALD: Genotype Reaction in Single Plants and Hill Plots - 80MT26. V. SCALD: Epidemic in Segregating Populations - 80A29, , 80MT25. VI. NET BLOTCH: Yield Loss Assessment - (Net Type) - 80A30, 80BA30. VII. NET BLOTCH: Field Inoculation (Net Type) - 80A31, 80BA31. VIII. 'SPOT TYPE' NET BLOTCH: Yield Losses - 80C24. IX. POWDERY MILDEW: Yield Losses - 80AL33.
Dpx 4189 And Other Herbicides For Weed Control In Wheat, G. A. Pearce
Dpx 4189 And Other Herbicides For Weed Control In Wheat, G. A. Pearce
Experimental Summaries - Plant Research
DPX 4189 and other herbicides for weed control in wheat: Object: To compare DPX 4189 with other herbicide treatments for the control of Broadleaved weeds and ryegrass in a wheat crop. Location Toodyay. Location: Moora District office trial . T Reynolds, Miling – 80MO43 – Gamenya wheat sown 29/5/80. Hoegrass plus Brominil trials 1980. To test the efficiency of Brominil M mixed with Hoegrass for weed. Sites: Toodyay and Dowerin.E. & M. Browne and Sons, East Wannamal – 80MO47B - Darkan wheat sown 16/6/80. O. & E. Coyle, Pithara - 80MO50 – Gamenya Wheat sown 29/5/80. Tank mixes with hoegrass. …
Nitrogenous Fertilisers For Cereals, Rape And Linseed. Results From 1980 Trials., M. G. Mason
Nitrogenous Fertilisers For Cereals, Rape And Linseed. Results From 1980 Trials., M. G. Mason
Experimental Summaries - Plant Research
Effect of stubble treatment on nitrogen fertiliser requirement – 78C3, 78M2, 78WH3. Rate of N on wheat - conventional vs. Direct drilling – 80A1, 80Cl, 80N1. Rate and time of application of nitrogen on wheat - CONVENTIONAL VS. DIRECT DRILLING – 80E1. Rate and time of application of nitrogen on rape - conventional vs. Direct drill – 80MT1. Rates of nitrogen on wheat on heavy land – 80GE1, 80GE2, 80MO2. Rates of nitrogen on wheat - soil test – 80BR3, 80ES14. 80KA2, 80NO2, 80TS1. Rates of nitrogen on wheat – 80LG26, 80ME2. Rates and sources of N and P for …
Weed Control In Pastures And Cereals, J R. Peirce
Weed Control In Pastures And Cereals, J R. Peirce
Experimental Summaries - Plant Research
80N037 - Post sowing - pre emergence applications of chemicals for soursob control in cereals. Property J. Miller - Beverley. Gamenya wheat - sown 25/6/80. 80N039 - Chemical control of soursob in cereals using herbicide combinations. Property J. Miller, Beverley. Gamenya wheat, sown 25/6/80. 80N038 - Post-emergent chemical control of Soursob in cereal crops. Property J. Miller - Beverley. Crop Gamenya wheat, sown 25/6/80. 80N038 - Post emergent chemical control of soursob in cereal crops. Property N. Hansen - Northam. Crop Warimba wheat sown on 4/6/80. 80N039 - Property Chemical control of soursob in cereals using herbicide combinations. N. Hansen …
Sulphur Nutrition Of Pastures And Crops Phosphorus And Potassium Nutrition Of Pastures On Deep Sands In The High Rainfall Areas, J S. Yeates, M F. Clarke
Sulphur Nutrition Of Pastures And Crops Phosphorus And Potassium Nutrition Of Pastures On Deep Sands In The High Rainfall Areas, J S. Yeates, M F. Clarke
Experimental Summaries - Plant Research
CONTENTS A. SULPHUR 1. Sources, rates, time of application of sulphur to legume pastures (high rainfall) - 80AL1, 80AL4, 80MA1, 80KE1. 2. Sulphur soil test on pastures (high rainfall) - 80AL12, 80AL13, 80AL14, 80BY2, 80KE2. 3. Sulphur rundown on sulphur absorbing soils of the high rainfall areas - 80BY1. 4. Sulphur requirements of pasture in low rainfall areas - 80JE17, 80M020. 5. Residual value of 1979 applied sulphur. Rates of fine gypsum applied 1980 - 79AL2, 79AL18, 79AL22, 79AL23, 79AL25, 79AL41, 78BA8 B, 79BY3, 79BY4, 79HA2, 79KE3, 79KE7, 79M020. 6. Sulphur requirements of wheat - 80JE16, 80M09. B. PHOSPHORUS 7. …
Trace Element Nutrition, J. W. Gartrell, R. F. Brennan
Trace Element Nutrition, J. W. Gartrell, R. F. Brennan
Experimental Summaries - Plant Research
Field trials. 1. Long term copper residual page 1. 2. Effect of granule size and cultivations on copper availability – 79N23 page 2. 3. Copper, zinc residual for sub-clover – 78MO26 page 5. 4. Copper, zinc residual for sub-clover on peaty sand – 75AL24 page 6. 5. Effect of copper fertilizer on wheat yield – 80NO27 page 7. 6. Ammonium sulphate/molybdenum on wheat – 80NO28 page 8. 7. Mo, lime, mg on sub-clover – 80NO29 page 9. 8. Zinc residual with high analysis N.P. Fertilizer for wheat – 80NO31 page 10. 9. Zinc, sulphur, copper residual with high analysis N.P. …
Grass Control And Minimum Tillage Herbicides, J. E. Holmes
Grass Control And Minimum Tillage Herbicides, J. E. Holmes
Experimental Summaries - Plant Research
Bromegrass. Wheat loss caused by bromegrass - 80WH47. Herbicides for bromegrass control - 80WH48. Bromegrass control - spraytop - 79NO41. Control of bromegrass – spraytop - 79BA59. Brome and barley grass control - 80NA62. Wild oats. Wild oat control - comparison of commercial treatments – 80NO44. Wild oat control - minimum tillage system - high challenge SITE - 80NO45. Ryegrass. Ryegrass control. Hoegrass effect of rates x volumes x times of application - 80SG41. Barley grass. Barley grass control in wheat - 80SG40. Pasture manipulation. Pasture manipulation - grass reduction - 79A31. Pasture manipulation - rates of herbicide - 80AB3. …
Influence Of Planting System On Surface Soil, Physical Conditions And Soil Water Relations, D Tennant
Influence Of Planting System On Surface Soil, Physical Conditions And Soil Water Relations, D Tennant
Experimental Summaries - Plant Research
Influence of planting system on surface soil, physical conditions and soil water relations. The availability of soil water for crop use can this way be influenced by planting system. Various aspects of soil water relations were examined in varying detail at three sites - Wongan Hills, Avondale and Merredin, over the 1979 and 1980 growing seasons. Some of this soil water data are presented here. The Department of Agriculture initiated a programme in 1977 to investigate and compare crop performance under several planting systems. This project was part of this programme and had as its objectives: 1. Measurement of soil …
Potassium, W. J. Cox
Potassium, W. J. Cox
Experimental Summaries - Plant Research
80BR1 - Rates of Potassium on Pasture. 80BR2 - Rates of Potassium on Pasture. 80TS4 - Rates of Potassium on Wheat. 80BR5 - Rates of Potassium on Pasture.
Pasture Species Investigations: Clover Cultivar Evaluation High Rainfall Area 1980, D A. Nicholas
Pasture Species Investigations: Clover Cultivar Evaluation High Rainfall Area 1980, D A. Nicholas
Experimental Summaries - Plant Research
Clover Cultivar Trials - 78 MN5 - Manjimup Research Station. 78BU15 - N. McDonald, Jindong. 78BR16 - K. Stacey, Darradup. 78DE1 - S. Ravenhill, Tingledale. 79MA12 - H.H. Jackson, Pemberton. 80AL63, 78BU15, 78BR16, 78DE1, 78MN5, 79BY6, 79ES35, 79ES36, 79MA13, 79MT48, 79W5, 80AL59, 80B4, 80B5, 80BR18, 80BU7, 80BR18, 80BU7, 80ES64, 80HA3, 80HA4 Alternatives to cv Woogenellup. Progress report January, 1981, D.A. Nicholas. Of five trials continued from 1979 only two gave worthwhile results in 1980. Management of the other three sites (two at Esperance, one at Wokalup) gave some problems. At Palgarup (79MA13) and Mt. Barker (79MT48) regeneration of the crossbreds …
Organic Matter As A Source Of Nitrogen, A Reincke
Organic Matter As A Source Of Nitrogen, A Reincke
Experimental Summaries - Plant Research
Contents: Available Nitrogen. Relationship between available soil nitrogen and plant growth - 80GH5. The value of organic matter (>2m) to available soil nitrogen - 67C13 & 67N4. The effect of cropping systems on organic matter - 67C13. The effect of organic matter on plant growth. Incorporating wheat and clover (tops/roots/ burrs) at different rates - 80GH2. Seeding of clover at different rates - 80GH6. Incubation of organic matter - 80GH4. Germination problems after organic matter - 80GH8. Pre-Seeding Application of Nitrogen on cereals - 80A2. Lupin/oat mixture trials - 79MT30, 79BA31, . Mount Barker. Badgingarra. The effect of clover …
Legume Seed Inoculation, D. L. Chatel
Legume Seed Inoculation, D. L. Chatel
Experimental Summaries - Plant Research
List of experiments 1. 8ONA9A - The response of inoculated and non-inoculated field peas to fertilizer nitrogen on land not previously sown to peas. NARROGIN. 2. 8ONA9B - The response of inoculated and non-inoculated field peas to fertilizer nitrogen on land previously sown to peas. 3. 79GES8 - The performance of different strains of Rhizobium meliloti on different medics. TENINDEWA (Second year).
Erosion Risks With High Stocking Rates At Kojonup Trial, Department Of Agriculture, Western Australia
Erosion Risks With High Stocking Rates At Kojonup Trial, Department Of Agriculture, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
A pasture grazing trial at Kojonup dramatically illustrated the effects of Cyclone Alby. Severe erosion was evident on the heavily stocked plots while the more lightly stocked plots showed little damage.
Barley Yellow Dwarf Virus In Barley And Oats (79mt20, 79pe13) Experimental Summary 1979, G D. Mclean, T N. Khan, M Grimm, J D. Sandow
Barley Yellow Dwarf Virus In Barley And Oats (79mt20, 79pe13) Experimental Summary 1979, G D. Mclean, T N. Khan, M Grimm, J D. Sandow
Experimental Summaries - Plant Research
(1) Yield assessments have continued similar to those used in 1977 and 1978. Essentially, plants with symptoms typical of BYDV are marked in the early spring as well as a similar number without symptoms. Yield differences were obtained both for Clipper Barley and an oats variety. (2) Two pilot experiments using viruliferous aphids were carried out at Mount Barker (79MT20) and at South Perth · (79PE13). Both Rhopalosiphum padi and R. maidis were used. Infection at Mt Barker failed, and therefore no data is presented. The Perth experiment was planted on August 31, 1979. The original plan was to have …
Summary Research Results 1979, G A. Pearce
Summary Research Results 1979, G A. Pearce
Experimental Summaries - Plant Research
DPX4189 for weed control in wheat 79N27. Location - Toodyay. Herbicide mixtures for broadleaved weeds in wheat. Location - Toodyay. Diuron mixtures for broad leaf weeds in cereals. Location - "Glencoe" C/- P.O. Bindoon. Herbicides for early planting 79MO42. Location – N. Tonkin – Coomberdale. Broad leaf weeds in cereals 79MO45. Location - Miling (J. Lewis, Plympton). Herbicides for early planting 79LG27. Location – Karlgarin.
Experimental Summary 1979, J R. Peirce
Experimental Summary 1979, J R. Peirce
Experimental Summaries - Plant Research
Contents 79ME28 Soursob (Oxalis caprae) control along Roadsides. 79NO30 A & B.
79NO29 Pre and post emergent applications of Diuron for soursob control in cereals.
79ME31 Post emergent control of soursob in cereals. 79NO39
79ME26 A & B Control of Matricaria (Pentzia sp.) in cereals.
79NO40 Dormancy of Cape Tulip (homeria sp.).
79NO38 Patersons curse (Echium plantagineum) Control in pastures. Afghan thistle (solanum hoplopetalum) Control in pastures. 79ME28 and 79N030 A & B Soursob Control Along Roadsides. Chemicals: Roundup 1, 2 and 3 1ha-1, Diuron 1, 2 and 3 1ha-1, Sencor TD 1, 2 and 3 kgha -1 ) applied …
Summary Of 1979 Field Experiments, M L. Poole
Summary Of 1979 Field Experiments, M L. Poole
Experimental Summaries - Plant Research
79WH50: Effect of time of planting x cultural systems x herbicides on wheat yields - Wongan Hills Research Station. 79M34: Effect of time of planting x cultural systems x herbicides on wheat yields – Merredin Research Station. 79C31: Effect of time of planting x cultural systems x herbicides on wheat yields - Chapman Research Station. 79WH58: Rates of ryegrass x rates of nitrogen on wheat Yield. 79WH57: Rates of CCC and rates of nitrogen on yield of Wheat.
1979 Field Crops Experiments, P. Mcr. Wood
1979 Field Crops Experiments, P. Mcr. Wood
Experimental Summaries - Plant Research
Field crops experiments resistance of lupins to Phomopsis leptostromiformis. (P.McR. Wood, Plant Research Division, J. Hamblin, Plant Production Division). Stage 1-2 Plant Breeders' Plots. Phomopsis infection of 96 entries (replicated) was assessed just prior to harvest at seven sites - Chapman Valley Research Station (CVRS), Badgingarra Research Station (BRS), Wongan Hills Research Station (WHRS), Avondale Research Station (ARS), Mount Barker Research Station (MBRS), Esperance Downs Research Station (EDRS) and on a farmer's property at Eradu. At four sites, CVRS, Eradu, MBRS and EDRS, only very low levels of infection were apparent. At the other three sites, the currently available varieties …
Summary Of Experimental Results 1979 - Annual Rye Grass Toxicity, D L. Chatel
Summary Of Experimental Results 1979 - Annual Rye Grass Toxicity, D L. Chatel
Experimental Summaries - Plant Research
79KA15 The susceptibility of grasses to yellow slime disease
79KA16 The effect of gall burial on gall and slime production by annual rye grass sown into land with a history of ryegrass toxicity The effect of bacterial galls on development of slime and galls on ryegrass inoculated with nematode galls
Low Cost Cereal Herbicides - Pasture Manipulation - Annual Ryegrass Toxicity - Herbicides For Direct Drilling - Hoegrass Application Methods - Annual Ryegrass Herbicides, J E. Holmes
Experimental Summaries - Plant Research
79N46 Possible cereal herbicides – low cost mixtures, Tincurrin 79MO52 Possible cereal herbicides – low cost mixtures, Bolgart 79KA46 Possible cereal herbicides – low cost mixtures, Katanning 79NA39 Pasture manipulation – barley grass control 79NO28 Pasture manipulation, Goomalling 79MO50 Pasture manipulation – grass reduction – examination of known systems, Moora 79AR47 Pasture manipulation – grass control and herbicide residues, South Sterlings 79BA57 Pasture manipulation – rates of herbicides, Badgingarra Research Station 79A31 Pasture manipulation – grass reduction, Avondale Research Station 79KA47 Spraytop – Graze – control of annual ryegrass toxicity, Katanning 79BA56 Herbicides for direct drilling, Badgingarra Research Station 79A30 …
Early Generation Evaluation Of New Subterranean Clover Crossbreds And Medic Varieties, C M. Francis
Early Generation Evaluation Of New Subterranean Clover Crossbreds And Medic Varieties, C M. Francis
Experimental Summaries - Plant Research
The programme aims to evaluate early maturing subterranean clover crossbreds and selections emanating from the National Clover Breeding Programme based at the University of W.A. 78C13 Evaluation of crossbreds in the Dwalganup maturing range
Saving The State From Rabbits, Department Of Agriculture, Western Australia
Saving The State From Rabbits, Department Of Agriculture, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
A thoughtful look at the rise and fall of rabbit populations in Western Astralia and the work done to achive the current levels.
Declared Plant Control & Total Vegetation Control, P A. Rutherford
Declared Plant Control & Total Vegetation Control, P A. Rutherford
Experimental Summaries - Plant Research
(A) Declared plant control. 1. Arum lily (Zantedeschia aethiopica). Chemical control of Arum Lily (Zantedeschia aethiopica). Properties: Prevelly Park, Margaret River (A), Wonnerup (B). (A) dense Arum Lily under shade from trees in Park reserve. (B) scattered Lily in clover pasture grazed by dairy cattle. 2. Blackberry (Rubus spp). 79AI60 - Evaluation of Roundup for blackberry control. Property - R. Wolfe, Bornholm. Herbicides for blackberry control. Property – G. Wright, Kent River. 79AL62 - Evaluations of “Krenite” for blackberry control. Property R.G. Ebbott, Bow Bridge. 3. Pennyroyal (Mentha pulegium) 79AP64 - Herbicide screening on Pennyroyal (Mentha pulegium). D. Wells, Denmark. …