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Articles 31 - 60 of 79
Full-Text Articles in Physical Sciences and Mathematics
Barley Agronomy Experiments., K. L. Young
Barley Agronomy Experiments., K. L. Young
Experimental Summaries - Plant Research
Trial 89E1, 89SG1, 89MT3
Barley variety x time of sowing trials.
Location: Esperance Downs Research Station, Salmon Gums Research Station, Mt Barker Research Station
To determine the optimum time of ear emergence for barley varieties which vary in maturity.
Trial 89ES2
Location: Melijinup Field Station
Barley variety x time of sowing trials
1. Assess the effect of aphids on the yield of barley at a range of sowing times.
2. Determine the optimum time of ear emergence for barley varieties which vary in maturity.
Trial 89E6
The effect of aphids on the yield of barley
Location: Esperance Downs Research Station. …
Trace Element Nutrition. Tissue Testing Programme 1989. Residual Value. Manganese Nutrition Of Lupins., R. F. Brennan
Trace Element Nutrition. Tissue Testing Programme 1989. Residual Value. Manganese Nutrition Of Lupins., R. F. Brennan
Experimental Summaries - Plant Research
Evaluation of existing diagnostic procedures for the recommendation of trace element fertilizers.
To compare the accuracy and reliability of a range of tissue and soil tests being variously promoted for use to farmers for the diagnosis and prognosis of zinc and copper deficiencies in wheat crops on Western Australian farms.
Trial 66N14
Long term copper residual trial at the Newdegate Research Station.
To determine the residual value of previously applied copper.
Location: Newdegate Research Station.
Trial 86N27
Residual value of zinc with high analysis nitrogen and phosphorus fertilizer.
To determine the decline in effectiveness of zinc on this soil types …
Tactical Nitrogen Decisions For Wheat (And Nitrogen Sources Rates And Times On Wheat), J. W. Bowden, R. J. Lunt
Tactical Nitrogen Decisions For Wheat (And Nitrogen Sources Rates And Times On Wheat), J. W. Bowden, R. J. Lunt
Experimental Summaries - Plant Research
Trial 89MO49
Location: Tenderloin, Brand Highway, Regan's Ford.
History:
1987 Aroona wheat with 70 kg DAP and 3 kg CuSO4 at seeding followed by 60 urea at 3WAS and another 40 urea at 6WAS. Yield was about 1.7 to 1.8 t/ha;
1988 Gungurru lupins with 120 kg super and manganese/ha yielded 1.9 t/ha. 350-400 ml Roundup/ha and one cultivation prior to seeding.
Potassium Nutrition Of Pastures On The Sandplain Soils Of Western Australia., Noeleen Edwards, M. Thomas
Potassium Nutrition Of Pastures On The Sandplain Soils Of Western Australia., Noeleen Edwards, M. Thomas
Experimental Summaries - Plant Research
Project: Potassium nutrition of pastures on the sandplain soils of Western Australia.
Determine the factors affecting the fate of native and applied potassium on sandplain soils.
Define current and residual response curve parameters for potassium applications. Develop recommendations for the economic management of soil potassium levels.
Trial 88B46, 88TS69, 89KO26
Maintenance application rates of potassium on sandplain soils.
Location: Badgingarra Research Station, new block, North Eneabba, Kojaneerup Research Block.
Trial 89BA24
Residual value of potassium on sandplain soils.
Location: Badgingarra Research Station
Trial 89MT46,
Potassium requirements of sub clover.
Location: Mt Barker Research Station.
Project: Potassium nutrition of lupins on …
The Effect On Farm Profit Of Conserving Stubble To Prevent Wind Erosion, A D. Bathgate
The Effect On Farm Profit Of Conserving Stubble To Prevent Wind Erosion, A D. Bathgate
Journal of the Department of Agriculture, Western Australia, Series 4
Over-grazing of stubbles is a major cause of winf erosion on WesternAustralian farms. Stubble contributes to the 'roughness' of the paddock; as the roughness is reduced, the risk of winf erosion is increased.
The risk of lupinosis in sheep has previously reduced the likelihood of lupin stubble being over grazed, but the development of Gungurru, a phomopsis-resistent variety of lupin, has increased the potential for over-grazing and hence the probability of wind erosion.
This article describes the economic benefit (or cost) of conserving stubble at the conservation standards.
Planning For Horticultural Expansion On The Swan Coastal Plain, P Coghlan, Geoff Moore, Jim Dixon
Planning For Horticultural Expansion On The Swan Coastal Plain, P Coghlan, Geoff Moore, Jim Dixon
Journal of the Department of Agriculture, Western Australia, Series 4
Horticulture is an intensive, high value form of agriculture highly dependant on the availability of good water supplies for the year-round production of fresh produce. Production increase in Western Australia and the encouragement and development of export markets has caused rapid expansion if the industry in recent years.
Expansion is expected to continue, placing severe pressure on available water supplies and suitable land close to markets. At present' 90 per cent of the Stase's horticultural land is on the Swan Coastal Plain and minor selected hills areas around Perth.
Nitrogenous Fertilisers For Cereals In Different Rotations. Results From 1989 Trials., I. Rowland, M. G. Mason
Nitrogenous Fertilisers For Cereals In Different Rotations. Results From 1989 Trials., I. Rowland, M. G. Mason
Experimental Summaries - Plant Research
Trial 78BA1
Nitrogen fertiliser requirement in alternate crop - pasture rotation.
Location: Badgingarra Research Station.
Trial 88B4
Effect of amount and quality of organic matter residues on response to N.
Location: Badgingarra Research Station.
Trial 86WH36, 86M44
Lupin/wheat rotation.
Location: Wongan Hills Research Station, Carrabin Research Station.
Trail 87N084, 86M39, 86ME64, 87N25, 87KA49
Pea/wheat rotation.
Location: Konnongorring, Merredin Research Station, Narembeen, Newdegate Research Station, Nyabing,
Phosphate Nutrition Of Burr Medic And Yellow Serradella., Blakely Paynter
Phosphate Nutrition Of Burr Medic And Yellow Serradella., Blakely Paynter
Experimental Summaries - Plant Research
Trial 89ME50, 89ME51, 89ME53, 88ME55, 89ME56
Location: Mutadgin, Doodlakine, Noongar, Mt Hampton, Nungarin
Compare the response of burr medic to topdressed P with the response of wheat to drilled P.
Trial 89ME52, 89ME54
Location: Noongar, Mt. Hampton.
Compare the response of burr medic to topdressed P with the response of wheat to drilled P.
Measure the response of burr medic pasture to applied potash.
Trial 89ME59
Location: Beacon
Compare the response of yellow serradella to topdressed P with the response of wheat to drilled P.
Trial 89ME60, 89ME61
Location: Muntadgin
Compare the response of yellow serradella to topdressed P with …
Influence Of Soil Acidity On Cereals And Acidification Rates., P. J. Dolling
Influence Of Soil Acidity On Cereals And Acidification Rates., P. J. Dolling
Experimental Summaries - Plant Research
Soil acidity and the availability of nitrogen to cereals.
To determine the extra nitrogen available due to better pasture legume growth after liming.
To determine the extra nitrogen released from soil organic matter after liming.
Trial 89NO81
Location: South Cunderdin.
Trial 89NO82
Location: Cunderdin
Trial 89NO83
Location: Konnongorring.
Trial 89NO84
Location: Jennacubbine.
Trial 88AL35
Location: Woogenellup.
Trial 88TS54
Location: Three Springs.
Trial 88NO76
Location: Goomalling.
Trial 88NO77
Location: Ejanding.
Tactical Nitrogen Decisions For Wheat, J. W. Bowden, R. J. Lunt
Tactical Nitrogen Decisions For Wheat, J. W. Bowden, R. J. Lunt
Experimental Summaries - Plant Research
Trial 88MO41, 88WH40 (2CE), 88WH40 (4W), 89NO77, 89MO47, 89MO47, 89MO49, 89BA33 (1), 89BA33 (2), 89WH70 (1), 89WH70 (2)
Locations: Wannamal, WHRS, Grass Valley, Regan's Ford, Badg. New Block 3CE
In order to test tactical and other fertilizer decision making methods (Table 1), we carried out three trials in 1988 and a further seven trials in 1989 (Table 2).
To date this programme has provided a lot of information which can be used to test and validate current (and future) methods of predicting yield potential and nitrogen status of a crop as the season progresses. However, our inability to predict end …
Seed Phosphorus In Cereals And Lupins., R W. Bell
Seed Phosphorus In Cereals And Lupins., R W. Bell
Experimental Summaries - Plant Research
Experiment 89SC21, effect of seed origin and seed phosphorus on growth of wheat.
Experiment 89SC23, effect of seed phosphorus, seed size and seeding density on the growth of wheat at two soil P levels.
Experiment 89GL32, effect of solution P supply on the early growth and nodulation of lupins grown from seed with three levels of P.
Experiment 89GL33, effect of soil P supply on the early growth and nodulation of lupins.
Experiment 89SC20, effect of seed origin and seed phosphorus on growth of lupins.
Long Season Wheat Production On The South Coast Of Western Australia., W R. Smith, A P. Webster
Long Season Wheat Production On The South Coast Of Western Australia., W R. Smith, A P. Webster
Experimental Summaries - Plant Research
Fungicide, time of sowing, wheat variety. Time of sowing, wheat variety, 89AL3, 89ES3, 89JE1, 89KO3. Wheat phenology, 89E5, 89MT8. Aphid control, time of sowing, wheat variety, 89E3, 89MT5.
Report On The Application Of An Evapotranspiration Equation To The Waca Dome, P R. Scott
Report On The Application Of An Evapotranspiration Equation To The Waca Dome, P R. Scott
Resource management technical reports
No abstract provided.
Leschenault Peninsula : A Study Of Land Resources And Planning Considerations, Veronica P M Oma
Leschenault Peninsula : A Study Of Land Resources And Planning Considerations, Veronica P M Oma
Resource management technical reports
Leschenault Peninsula is a fragile coastal dune barrier north of Bunbury, Western Australia. Most of the landforms are highly, or potentially highly, unstable and are not capable of sustaining tourism uses other than walking tracks. Minor areas close to Leschenault Inlet are more stable and could be developed for a range of tourism uses including accommodation and day tripper facilities. However, much of the Peninsula is highly degraded and susceptible to wind erosion, while disposal of acid-iron rich li id effluent from the Laporte (SCM) works in lagoons located within the dunes, has contributed to the visual degradation of the …
Land Capability Assessment Methodology For Rural-Residential Development And Associated Agricultural Land Uses, M R. Wells, Peter Donald King
Land Capability Assessment Methodology For Rural-Residential Development And Associated Agricultural Land Uses, M R. Wells, Peter Donald King
Land resources series
No abstract provided.
Rangeland Surveys : A Basis For Improved Land Use, P J. Curry, Alan Payne
Rangeland Surveys : A Basis For Improved Land Use, P J. Curry, Alan Payne
Journal of the Department of Agriculture, Western Australia, Series 4
In mis 1988, the Department of Agriculture started a three-year programme to assist pastoralists in the Murchison River catchment to update land management planning of their stations. This Project, which is funded by the National Soil Conservation Program, will use interim results from a recent rangeland survey which has investigated and mapped the grazing recources throughout the region.
Elsewhere in Western Australia's pastoral areas, information on the productive potential of each area - and the management problems inherent for each class of land - are being used to help pastoral managers of Soil Conservation Districts rehabilitate degraded areas. This information …
Nitrogenous Fertilizers For Cereals., M. G. Mason
Nitrogenous Fertilizers For Cereals., M. G. Mason
Experimental Summaries - Plant Research
Trial 87CI
Rates of nitrogen on continuous wheat on heavier land.
Location: North Mullewa Research Station.
Trial 80WH3, 80MI, 80N3.
Effects of Agras No. 1 on soil pH and wheat yield.
Location: Wongan Hills Research Station, Merredin Research Station, Newdegate Research Station.
Trial 78WH3
Effect of stubble treatment on nitrogen fertilizer requirement.
Location: Wongan Hills Research Station.
Trial 89WH18
Effect of banding sources of nitrogen on grain yield.
Location: Wongan Hills Research Station.
Trial 89M2 (a)
Nitrification of sources of nitrogen on heavy soil.
Location: Merredin Research Station.
Trial 89M2 (b)
Nitrification of sources of nitrogen on heavy soil.
Location: …
New Block Badgingarra Rs Late Time Of Seeding., J. W. Bowden, R. J. Lunt
New Block Badgingarra Rs Late Time Of Seeding., J. W. Bowden, R. J. Lunt
Experimental Summaries - Plant Research
Trial 89BA33,
Location: Badgingarra
Based on a 1.5 t/ha potential yield, the strategic treatment was planned to be 120 kg urea/ha 4WAS. However, the crop was poorly established and so NH4NO3 was used in the hope of getting better tillering than would be possible with the slower release urea source. Gambling on equal dollars to urea for 2/3 N, but believe that twice as effective.
DAP was used to place nitrogen with the seed in case there was no rain of significance after seeding. This nitrogen (only 5 kg/ha) was probably lost with the rains of 20-28/7/89 (50 mm). Urea …
Glean Logan Comparisons, R Madrin, J Buckley
Glean Logan Comparisons, R Madrin, J Buckley
Experimental Summaries - Plant Research
Rates and timing of application, 89ME79, 89NO72, 89WH81, 89WH75. Hoegrass tankmixes, Brodal, Glean, 89M58. Grasp efficacy, rates and timing of application to wheat, 89NO71. Grasp tolerance, rates and timing of application to wheat, 89A17, and 89WH62. Silvergrass control in pasture. Simazine, Pursuit, 89KA67, 89LG60, 89NO73. Marshmallow control in crop, 89NO98. Glyphosate formulation comparisons, 89WH78, 89A27. Diclofop-methyl formulation comparisons, 89A28. Pursuit on pasture, rate and additives, 89LG61, 89LG60, 89LG58, 89A26. Selective grass controllers with Simazine on pasture 89M64, 89LG59. Cape tulip control in pasture, 89NA73, 89NA72.
Harvest Index Of Lupins, Direct Drilling On Sandplain Soils., Rob Delane, Carmel Schmidt, Glenn Adam
Harvest Index Of Lupins, Direct Drilling On Sandplain Soils., Rob Delane, Carmel Schmidt, Glenn Adam
Experimental Summaries - Plant Research
Chemicals to improve pod setting in Lupins (Small plots), 89C23, 89GE74,
Chemicals to improve pod setting in Lupins (Large plots) 89GE72, 89GE75.
Serradella Evaluations, L. Cransberg
Serradella Evaluations, L. Cransberg
Experimental Summaries - Plant Research
Trial 85AL56
Location: South Sterlings.
Serradella line evaluation - Stage 3.
To evaluate five promising lines selected from variety trials, in terms of herbage production and long term persistence.
Trial 88AL32
Location: Walpole.
Long season serradella evaluation.
To select productive and persistent serradella lines for the deep acidic sands in the very high rainfall zone on the south coast.
Trial 88AL31
Location: Takalarup.
Ryegrass species evaluation.
To investigate the potential of a range of ryegrasses, from short term to long term perennial, in the south coast environment.
Grass species evaluation
Location: Greenrange.
To identify both productive and persistent grasses for …
Effects Of Seed Phosphorus Concentrations And The Source Of The Seed On Growth Of Lupins., M. M. Riley, M. D. Bolland, K. Adcock
Effects Of Seed Phosphorus Concentrations And The Source Of The Seed On Growth Of Lupins., M. M. Riley, M. D. Bolland, K. Adcock
Experimental Summaries - Plant Research
Trial 89EC31
Location: East Chapman Research Station.
The effect of seed phosphorus concentration, source of seed and fertilizer P level on plant counts from six to 20 weeks.
Rhizoctonia Control In Potatoes And Potato Resistance To Powdery Scab., R M. Floyd
Rhizoctonia Control In Potatoes And Potato Resistance To Powdery Scab., R M. Floyd
Experimental Summaries - Plant Research
Trials : 88BY26, 88PE34, 88MD35
Control of Rhizoctonia solani infection of potato stems and daughter tubers was demonstrated by preplanting applications of tolclofos-methyl (RIZOLEX TM) to either cut or round seed tubers. Yield of tubers from cut seed treated with Rizolex was increased over that of cut seed cured before planting bu not when seed was cut and planted the same day. Crops grown from round seed treated with Rizolex yielded higher than from untreated round seed.
Surface sterilization of seed tubers with Sodium hypochlorite was effective in reducing stem damage but not in reducing daughter tuber sclerotes. This indicates …
Pasture Agronomy., C. K. Revell
Pasture Agronomy., C. K. Revell
Experimental Summaries - Plant Research
Trial 89ME82
a. Medic establishment.
Establishing burr medic pastures with cereal cover.
Merredin
Trial 89SC19
b. Serradella - Potash response.
Response of serradella to potash fertilizer.
South Carrabin
Trial 89M44
c. Serradella/Grass competition
Effect of grass competition on production of serradella.
Merredin Research Station.
Trial 89SC HERB
d. Herbicide tolerance of Serradella.
Herbicide tolerance of Madeira serradella.
South Carrabin
Pasture Species Evaluation On Acid Wodjil Soil - Machine Sown Plots., Bradley Nutt
Pasture Species Evaluation On Acid Wodjil Soil - Machine Sown Plots., Bradley Nutt
Experimental Summaries - Plant Research
Trial 89TS38
Location: East Latham
The very low seed yields are a reflection of the dry winter conditions experienced in 1989. The Rose (T. hirtum) and Cupped (T. cherli) clovers appear to be a more promising option for this difficult soil type compared to other species. Paros yellow serradella performed well considering the trial site is located in a very dry area. The burr medics would not be an option on these acidic soil types because of nodulation failure; which should become evident in the regenerating swards.
Legume Species Mixtures., C. M. Saunders
Legume Species Mixtures., C. M. Saunders
Experimental Summaries - Plant Research
Trial 86KA64 - ironstone hardsetting clay pH 8.0
86KA65 - orange/red loam pH 7.0
86KA66 - sandy gravel pH 5.6 - 5.7
Location: Dumbleyung.
Current recommendations for pasture species in the medium rainfall zone has not included species mixtures for paddocks with varying soil types. These trials (three in total) are designed to test the hypothesis that legume species mixtures are more productive and persistent in the long term than monocultures, across three soil types and three different cropping/pasture rotations (continuous pasture, 1 year pasture : 1 year crop rotation, 2 years pasture : 1 year crop rotation).
Evaluation Of Trifolium And Ornithopus Species., Richard Snowball
Evaluation Of Trifolium And Ornithopus Species., Richard Snowball
Experimental Summaries - Plant Research
89AL26, 89MC6, 89W10, 89HA3, 89N058
Trial work in 1989 included the following:
Medina: 1. Re-evaluation of Persian and Balansa clovers.
2. Confirmation of sorted types from new collections.
3. Regeneration of old collections.
4. Seed increase of Persian and Balansa clovers.
5. New Serradella collections.
6. New Trifolium collections.
Country: Selected lines of Persian, Balansa and other Trifolium species at:
1. Green Range.
2. Manjimup.
3. Wokalup.
4. Harvey.
5. Goomalling.
Effect Of Soil P Supply On The Early Growth And Nodulation Of Lupins., Brett Thomson, M. D. Bolland, R. W. Bell
Effect Of Soil P Supply On The Early Growth And Nodulation Of Lupins., Brett Thomson, M. D. Bolland, R. W. Bell
Experimental Summaries - Plant Research
Trial 89GL33
Location: Glasshouse University of Western Australia.
Four seeds were sown at 2.5 cm depth in pots containing 4.5 kg of steam sterilized soil treated with the following basal nutrients (mg/kg soil) : K2SO4, 121.7; MgSO4.7H20, 17.5: CaCl2, 21; FE sequestraene, 7.2; H3BO3, 0.5; MnSO4, 10.8; ZnSO4, 7H20, 7.5; CuSO4, 5H20, 5.3; Na2Mo04.2H20, 0.27; CoSO4.7H2O, 0.07.
Effect Of Seed Phosphorus , Seed Size And Seeding Density On The Growth Of Wheat At Two Soil P Levels., M. M. Riley, M. D. Bolland, K. Adcock
Effect Of Seed Phosphorus , Seed Size And Seeding Density On The Growth Of Wheat At Two Soil P Levels., M. M. Riley, M. D. Bolland, K. Adcock
Experimental Summaries - Plant Research
Trial 89SC23
Location: South Carrabin
Effect of soil P, seed P and seed rate on plant counts at 5 weeks.
Shoot dry matter (DM) at tillering and heading and seed DM at maturity were strongly depressed by low soil P levels.
Effect Of Seed Phosphorus Levels In Three Wheat Varieties And Fertilizer P Supply On Their Growth And Grain Yields., M. M. Riley, M. D. Bolland, K. Adcock
Effect Of Seed Phosphorus Levels In Three Wheat Varieties And Fertilizer P Supply On Their Growth And Grain Yields., M. M. Riley, M. D. Bolland, K. Adcock
Experimental Summaries - Plant Research
Trial 89WH74
Location: Wongan Hills Research Station, Field 4W
Effect of phosphorus and fertilizer on the growth and grain of wheat yields.