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Articles 721 - 750 of 1581
Full-Text Articles in Physical Sciences and Mathematics
Rotational Experiments., C. K. Revell
Rotational Experiments., C. K. Revell
Experimental Summaries - Plant Research
Trial 82M47
a. Subterranean clover.
Subterranean clover rotation trial
Merredin Research Station.
Trial 88ME83
b. Santiago burr medic
Rotational systems for burr medic
Merredin.
Trial 89N29
Rotational systems for burr medic.
Newdegate Research Station.
Replicated Single Row Evaluation., C. M. Saunders
Replicated Single Row Evaluation., C. M. Saunders
Experimental Summaries - Plant Research
Trial 89AB12
Great Southern Agricultural Institute - Paddock B15
This trial was of similar design to the single row evaluation, except four replications and pesticide treatments were also included.
However the trial had to be abandoned due to severe phytotoxic responses seen in the medics due to repeated spraying of 'Lorsban' (used at recommended rates).
Intended to repeat this work in 1990, bulk seed where possible and to eventually assess these lines, under such conditions, in large plots.
Pasture Deterioration Trial, J. W. Bowden, R. J. Lunt
Pasture Deterioration Trial, J. W. Bowden, R. J. Lunt
Experimental Summaries - Plant Research
Trial 89NA61
Location: Duranillin
In this site we would expect a very large response (40 to 50% ) to phosphorus.
History:
The site was chosen because of the patchy and poor pasture production. The poor areas tend to have more suckling clover than the good areas. The pasture was legume dominant.
Treatments were applied on April 16, 1989.
Tolerance Of Cereal Varieties To Herbicides, David Bowran, Neil Thomson
Tolerance Of Cereal Varieties To Herbicides, David Bowran, Neil Thomson
Experimental Summaries - Plant Research
Tolerance of current cereal varieties to new herbicides, 89EC21, 89N27, 89SC15. Tolerance of new cereal varieties to current herbicides, 89EB19, 89EC20, 89N28, 89SC16. Tolerance of wheat varieties to Metribuzin and Pendimethalin, 89EC22, 89WH58. Tolerance of wheat to herbicide tank mixes for grass and broadleaf weed control in cereals, 89WH86. Grasp efficacy and tolerance, 89C22, 89GE93. Tolerance of field peas to herbicides, 89KA64, 89M56. Tolerance of pasture legume varieties to herbicides, 89KA76. Crop establishment using residual herbicides for weed control, 89NA66.
Herbicide Residues, T Piper
Herbicide Residues, T Piper
Experimental Summaries - Plant Research
Pea growth following Sulphonyl urea herbicide, 88SG28, 88SG29. Medic regeneration following Sulphonyl urea herbicide, 88SG30, 88SG31, 88LG68, 88LG69, 88LG70.
Weed Control In Lupins With Simazine Topping Up, D J. Gilbey, R Klemm, B Roberts
Weed Control In Lupins With Simazine Topping Up, D J. Gilbey, R Klemm, B Roberts
Experimental Summaries - Plant Research
Weed control in Lupins with simazine “topping up”, 89GE62, 89TS40, 89NO59. Doublegee control in Lupins with Brodal plus simazine, 89GE63, 89TS41, 89NO60. Post emergence doublegee control in lupins, 89NO92, 89MO65. Doublegee control in peas, pre-emergence, 89TS47, 89MO38, 89M38, 89NO63. Doublegee control in peas, post-emergence, 89TS48, 89MO39, 89ME87, 89NO64.
Factors Affecting Lupin Crop Establishment In The Northern Agricultural Region Of Western Australia., K W. Mccarthy, A M. Doswell, R J. Delane, M W. Sweetingham
Factors Affecting Lupin Crop Establishment In The Northern Agricultural Region Of Western Australia., K W. Mccarthy, A M. Doswell, R J. Delane, M W. Sweetingham
Experimental Summaries - Plant Research
Lupin establishment, 89EC6. The effect of machine, depth of sowing, seed soil contact and herbicide incorporation on lupin establishment, 89GE8. The effect of phosphate application on lupin establishment, 89GE99. The effect of seeding technique, depth of sowing, seed soil contact and fungicide on lupin establishment on course sands, 89GE9. Integrated control strategy of Rhizoctonia hypocotyl root rot of lupins, 89GE11, 89GE12, 89GE12B, 89GE13, 89GE14. Strategies for lupin patch control, 89EC7 and 89GE15. The effect of seed size and sowing rate on lupin establishment, 89C1, 89GE6, 89GE7, 89EC5, 89BA34, 89TS49, 89GE10, 89EC4, 89GE4,
Canola Rapeseed, Rapeseed, Tillage., J D. Warren, R Tugwell, S Wiley
Canola Rapeseed, Rapeseed, Tillage., J D. Warren, R Tugwell, S Wiley
Experimental Summaries - Plant Research
Canola rapeseed. Assessment of early maturity Stage 2, lines. 89AB5, 89N38, 89EB31. Early maturity triazine resistance. 89AB6, 89N39, 89EB32. Stage 1 early maturity selections, 89AB8. Stage 2 Late maturity, 89MT43. Late maturity triazine resistance, 89MT44. Blackleg race trial, 89MT47. Interstate variety trials, 89MT45, 89ka70.
Systems For Early Sowing Of Wheat In Low Rainfall Zones., N J. Kerr
Systems For Early Sowing Of Wheat In Low Rainfall Zones., N J. Kerr
Experimental Summaries - Plant Research
Background and early significance. Effect of sowing date and nitrogen fertilizer on wheat varieties in low rainfall areas, 89GE76, 89GE77, 89NM1, 89GE78, 89NM2, 89NM3, 89GE78. Tillage and sowing methods for early sowing of wheat in low rainfall areas, 89GE79. Aims, Background, Experimental details.
Medic Variety Evaluation., C. K. Revell
Medic Variety Evaluation., C. K. Revell
Experimental Summaries - Plant Research
Trial 89M57
Medic variety evaluation - rows.
Merredin Research Station (Paddock T5)
Trial 89ME71
Selection of early maturing M. murex.
Nokaning.
Trial 88ME86
Evaluation of Santiago in low rainfall areas.
Mukinbudin.
Trial 87M73
Medic variety evaluation - large plots.
Merredin Research Station.
Trial 86M65
M. polymorpha variety evaluation - large plots.
Merredin Research Station.
Trial 88ME84
Evaluation of burr medics on Morrel soils.
Nokaning.
Trial 88SC30
Selection of early maturing M. murex.
Merredin.
Pasture Species Investigations., D. A. Nicholas
Pasture Species Investigations., D. A. Nicholas
Experimental Summaries - Plant Research
Trial 87WH50, 87NA77, 87KA39
Location: Wongan Hills, Kulin, Nyabing
Selection of subclover cultivars - early maturing.
To select in the field subterranean clover cultivars of early maturity having superior persistence and productivity.
Pasture Species Investigations, D. A. Nicholas
Pasture Species Investigations, D. A. Nicholas
Experimental Summaries - Plant Research
Trial 87MO48, 87A25, 89846B, 87E33, 87KA40
Selection of sub. clover cultivars - early mid.
To select in the field subterranean clover cultivars of early to midseason maturity having superior persistence and productivity.
Koojan.
Avondale Research Station Paddock 9D.
Esperance Downs Research Station Paddock CW1.
Ryan's Brook.
Pasture Species Investigations., D. A. Nicholas
Pasture Species Investigations., D. A. Nicholas
Experimental Summaries - Plant Research
Trial 87V7, 87MT52, 87MA31
Selection of subclover cultivars - mid to late maturing.
To select in the field subterranean clover cultivars of mid to late maturity having superior persistence and productivity.
Location: Vasse Research Station, Mount Barker Research Station, Wilgarup.
The Grazing Value Of Medicago Murex., C. M. Saunders
The Grazing Value Of Medicago Murex., C. M. Saunders
Experimental Summaries - Plant Research
Trial 88KA92
Location: Potts Road, East Kojonup.
At present, limited information is available on the grazing value of Medicago murex cv. Zodiac on sheep live weights and wool growth. This trial was designed to provide data on the relative performance of sheep grazing Zodiac compared with the recommended subterranean clovers (Junee/Seaton Park) in the > 450mm rainfall zone in WA.
Cultivar Evaluation On Low Rainfall Heavy Textured Soils., Bradley Nutt
Cultivar Evaluation On Low Rainfall Heavy Textured Soils., Bradley Nutt
Experimental Summaries - Plant Research
a. Trial 88GE34
Cultivar evaluation in machine sown plots.
Location: NMRS
The higher seed yield of Serena compared to the other cultivars resulted in better early forage .production as well a legume dominated pasture.
b. Trial 88TS 63 and 88TS 65
Wheat yields following pastures.
Location: 88TS63 - Perenjori and 88TS65 - Three Springs.
There was no response to nitrogen in either biological yield or grain yield of wheat sown over volunteer based pasture at the Three Springs site. All pasture treatments resulted in similar wheat yields except for Sava because of poor control of the snail medic under the …
Aphid Tolerance Evaluation In Annual Medics., Bradley Nutt
Aphid Tolerance Evaluation In Annual Medics., Bradley Nutt
Experimental Summaries - Plant Research
Trial 89GE61
Location: East Chapman
Out of the 100 lines tested, 30 experimental lines were less affected (in terms of seed yield) by aphid damage than c.v. Parabinga.
Variety Evaluation On Deep Sandplain Soils, Bradley Nutt
Variety Evaluation On Deep Sandplain Soils, Bradley Nutt
Experimental Summaries - Plant Research
a. Trial 88EC17
Small plot evaluation of annual medic species.
Location: East Chapman Research Station.
b. Trial 89E64
Small plot evaluation of annual pasture legumes on deep grey sand.
Location: 'Huntswell' Allanooka.
c. Trial 89GE60
Evaluation of annual medic lines in machine sown plots.
Location: Balla, Tenindewa, Irwin
Soil-Plant-Sheep Organochlorine Pesticide Research, Tony Albertsen
Soil-Plant-Sheep Organochlorine Pesticide Research, Tony Albertsen
Experimental Summaries - Plant Research
1. Soil O/C decay (5812)
Locations: Brookhampton, Carbunup, Dardanup, Denmark, Donnybrook, Goodwood, Jindong, Kirrup, Manjimup, Pemberton, Redmond.
To determine the rate of decay of soil Dieldrin.
2. Soil profile distribution of O/Cs (5812) (88AL21/1)
To determine the distribution of O/cs at 1 cm intervals down the soil profile.
3. Soil decontamination of O/Cs (5812)
To assess practical and economic techniques for decontaminating soil Dieldrin residues.
4. The accumulation and rundown of Dieldrin in wethers. (5841)
To determine the relationship between the levels of Dieldrin contamination in soil, pasture, sheep body and wool fat.
5. Surface drainage trial 86V1/5164
Efficient surface …
Tactical Nitrogen Decisions For Wheat (And N Rates Trials), J. W. Bowden, R. J. Lunt
Tactical Nitrogen Decisions For Wheat (And N Rates Trials), J. W. Bowden, R. J. Lunt
Experimental Summaries - Plant Research
Trial 89NO77 (89NO76)
Location: Grass Valley.
History: 1984 Lupins.
1985/86 pasture legumes and about 100 kg super/ha.
1987 Wheat yield of 2.8 t/ha using 45 kg DAP/ha and 60 of urea 2-4 WAS.
1988 Gungurru lupins (27 kg/ha seed) yielding 1.9 t/ha using 80 kg super/ha.
Tactical nitrogen trials - summary of treatments required.
Trial 89NO77
Location: Meckering
Treatments existed of nitrogen and urea. Nitrogen was not applied at seeding. Urea was applied at seeding.
Trial 88No77
Tactical nitrogen trials. - summary of observations.
Location: Grass Valley.
Trial 89NO76
Hand harvest 23/11/1989.
Yield components for copper sufficient plots reps. I …
Finishing Kimberley Cattle In The South-West, Brian L. Mcintyre, Bill Ryan, Neville Macintyre
Finishing Kimberley Cattle In The South-West, Brian L. Mcintyre, Bill Ryan, Neville Macintyre
Journal of the Department of Agriculture, Western Australia, Series 4
The idea of integrating the Kimberley cattle industry with that in the south-west of Western Australia is no new, but until recently it had not been critically evaluated.
Over the past eight years the Department of Agriculture's Beef Cattle Branch has been assessing the performance of Kimberley cattle transported south for finishing in the agricultural areas.
This research has show that Kimberley weaners can be finished in the south, and that under the present (December 1988) economic conditions it is more profitable than running breeding cattle in the south-west and comparable with fattening store steers.
Rock Phosphates Are Poor Fertilizers For Non-Leaching Soils In South-Western Australia, Michael D A Bolland, Bob Gilkes
Rock Phosphates Are Poor Fertilizers For Non-Leaching Soils In South-Western Australia, Michael D A Bolland, Bob Gilkes
Journal of the Department of Agriculture, Western Australia, Series 4
Field experiments conducted on our non leachng soils from 1975 to 1988 have consistently shown that rock phosphates, compared with freshly applied superphosphate each year, are a relatively ineffective fertilizer in the year of application and in the years after application.
The Effect Of Seed Origin And Seed Phosphorus On The Growth Of Lupins, M. M. Riley, M. D. Bolland, K. Adcock
The Effect Of Seed Origin And Seed Phosphorus On The Growth Of Lupins, M. M. Riley, M. D. Bolland, K. Adcock
Experimental Summaries - Plant Research
Trial: 89SC20
Location: South Carrabin Research Station, Hayden paddock.
The effects of superphosphate and fertilizer on seeds planted over a 21 week period.
Irrigation And Fertilizer Management For Horticultural Crops On The Swan Coastal Plain, I R. Mcpharlin, Greg Luke
Irrigation And Fertilizer Management For Horticultural Crops On The Swan Coastal Plain, I R. Mcpharlin, Greg Luke
Journal of the Department of Agriculture, Western Australia, Series 4
The Swan Coastal Plain is an important area for the production of vegetables, flowers and fruits in Western Australia. The yellow Cottesloe, Karrakatta and the white-grey Bassendean Sands upon which most of this production is based are infertile in their natural state and require large inputs of fertilizer for succesful production of horticultural crops.
Improved irrigation and fertilizer management will be needed to reduce nutrient leaching from horticultural crops on the coastal plain. This will probably involve applying fertilizer and water more frequently, but in smaller quantaties thaan currently practiced. The result should more closely match water and fertilizer supply …
Frost Injury To Wheat, S P. Loss
Frost Injury To Wheat, S P. Loss
Journal of the Department of Agriculture, Western Australia, Series 4
Frost injury has not been a major concern to the Western Australian wheat industry despite causing spectacular but irregular crop losses on some farms.
The development of suitable herbicides, direct drilling technology and the adoption of early flowering varieties in the late 1970s and early 1980s led to wheat crops being sown and flowering earlier than previously. This resulted in an increase in the incidence of frost damage.
Research into frost indicates that most wheat producers face low to moderate risks of yield loss caused by frost. However, individual farms in particular years can suffer devestating widespread losses. Grost injury …
Flower : Predicting Flowering Times Of Cereal Crops, G A B Elliott, Stephen Loss
Flower : Predicting Flowering Times Of Cereal Crops, G A B Elliott, Stephen Loss
Journal of the Department of Agriculture, Western Australia, Series 4
FLOWER is a computer program which predicts the flowering date of a given wheat or barley variety at a specified location and sowing date. Department of Agriculture agronomists, breeders and advisers are using the program to provide useful information on how the development of cereals responds to different environments across Western Australia's cereal growing areas.
Water Erosion Of Farmland In 1988, K J. Bligh
Water Erosion Of Farmland In 1988, K J. Bligh
Journal of the Department of Agriculture, Western Australia, Series 4
Widespread heavy rains in WesternAustralian agricultural areas in 1988 caused severe water erosion, much of which could have been avoided by minimum cultivation and lower stocking rates.
Breeding Field Peas : Screening Pea Lines, G H. Walton
Breeding Field Peas : Screening Pea Lines, G H. Walton
Journal of the Department of Agriculture, Western Australia, Series 4
The early use of field peas in Western Australia was as a green manure crop or to feed stock be grazing the mature crop. Varieties which produced a large bulk of green material were sown. There was no control over insects or diseases.
In 1985, the Feseral Government recognised that to realize the potential of grain legumes grown throughout Australia, more research was needed.
One of the Grain Legume Research Council's (GLRC) priorities is species evaluation and variety improvement.
Since 1983, the Western Australian Department of Agriculture has screened advanced crossbred lines from the South Australian breeding programme for its …
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.