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Articles 10021 - 10050 of 10837

Full-Text Articles in Agronomy and Crop Sciences

Trace Element Nutrition., R. F. Brennan Jan 1990

Trace Element Nutrition., R. F. Brennan

Experimental Summaries - Plant Research

Trial 66N14

Long Term Copper Residual Trial

Location: Newdegate Research Station.

To determine the residual value of previously applied copper.

Trial 86N27

Residual Value of Zinc with DAP.

Location: Newdegate Research Station.

To determine the decline in effectiveness of zinc on this soil types using DAP.

86LG34

Residual Value of Copper, Zinc and Sulphur with DAP Fertilizer

Location: South Newdegate.

To determine the decline in effectiveness of copper, zinc and sulphur on this soil types using DAP

Trial 67E8

Grain Yields of Wheat Grown on a Residual Copper Trial.

Location: Esperance Downs Research Station.

The trial was originally designed to …


Phosphorus And Sulphur Nutrition Of Pastures In High Rainfall Areas., M. D. Bolland, M. F. Clarke Jan 1990

Phosphorus And Sulphur Nutrition Of Pastures In High Rainfall Areas., M. D. Bolland, M. F. Clarke

Experimental Summaries - Plant Research

J.S.Yeates and M.F.Clarke started these experiments. In January 1990 M.D.A. Bolland replaced J.S. Yeates (who became Regional Manager of the Northern Agricultural Region) as the Research Officer responsible for the management of the long-term experiments, and to continue the research on the topic.

In the experiments the fertilizers wee applied in autumn (March-April) in the years listed in the tables.

Trial 80AL4

Location: Cuthbert.

A new experiment was started in 1989 to compare two partially acidulated rock phosphate (PARP) fertilizers with ordinary (single) superphosphate (OSP).

Trial 84AL32

Location: Denmark

The fertilizers compared are ordinary (single) superphosphate (OSP). New (pre 1990) …


Time Of Sowing And Variety Of Lupins On The South Coast., M. Seymour Jan 1990

Time Of Sowing And Variety Of Lupins On The South Coast., M. Seymour

Experimental Summaries - Plant Research

Trial 90ES5, 90ES6, 90E7

Lupin time of sowing x variety.

Location: Gibson

To evaluate the response of lupin varieties to a range of sowing dates when grown in high rainfall/long growing season environments.

Trial 90ES8

Lupin time of sowing x variety.

Location: Scaddan

To evaluate the response of lupin varieties to a range of sowing dates.


Investigating Poor Pasture Productivity., J. W. Bowden, R. J. Lunt, C. Broun Jan 1990

Investigating Poor Pasture Productivity., J. W. Bowden, R. J. Lunt, C. Broun

Experimental Summaries - Plant Research

Trial 90N06

Location: West Dale

To determine the reason for poor pasture productivity in medium rainfall zone. Specifically why the pastures are dominated by the poorly productive species Trifolium suffocatum and why there was a large response to phosphorous fertilizer at 50 ppm P in the soil.


Selection And Evaluation Of Medic Lines With Resistance To Aphids And Improved Agronomic Characteristics., P. Evans Jan 1990

Selection And Evaluation Of Medic Lines With Resistance To Aphids And Improved Agronomic Characteristics., P. Evans

Experimental Summaries - Plant Research

Trial 89AB12 and 89AB11

Location: Great Southern Agricultural Institute.

Ten commercial cultivars and twenty breeding lines were evaluated in 1990. To assess the effect of insect attack throughout the season, two treatments were imposed, sprayed throughout the season and unsprayed.


Organochlorine Residues In Soil, Plant And In The Body And Wool Fat Of Wethers., Tony Albertsen Jan 1990

Organochlorine Residues In Soil, Plant And In The Body And Wool Fat Of Wethers., Tony Albertsen

Experimental Summaries - Plant Research

Trial 5841

The accumulation and rundown of dieldrin in wethers.

Location: Brookhampton, Donnybrook, Jindong, Manjimup, Carbunup and Pemberton

The background, aims, experimental method, and the first years results and discussion have been reported in the 1989 experimental summary.

The latter phase of the study was continued until December 1990 on six of the sites (these were Brookhampton, Donnybrook, Jindong, Manjimup, Carbunup and Pemberton) with similar measurements being obtained at regular intervals. The sheep monitored during this phase were the 1989 Main mob and the 1989 Replacement mob.


Agronomic Practices To Improve Or Maintain The Protein Content Of High Yielding, Long Season Wheats., Wayne Smith Jan 1990

Agronomic Practices To Improve Or Maintain The Protein Content Of High Yielding, Long Season Wheats., Wayne Smith

Experimental Summaries - Plant Research

Trial 90SG8, 90SG9, 90ES9, 90ES11, 90MT8, 90KO2

Wheat variety * Time of sowing

Location: Salmon Gums Research Station, Mt. Ridley, East Gibson, Mt Barker Research Station, Kojaneerup Research Station

The aim is to define the optimum heading/flowering date on the South Coast. This trial also provides information on the performance of the varieties and new cross-breds at various sowing times.

Trial 90E10, 90ES12, 90ES13, 90ES14, 90ES15, 90ES16, 90SG10, 90SG11, 90MT10, 90KO3, 90KO4

Wheat protein on the South Coast

Location: Esperance Downs Research Station, Gibson, Neridup, Mt Ridley, Salmon Gums Research Station, Mt Barker Research Station, Kojaneerup Research Station

The Australian …


"Flowering Windows" For Crops, W. K. Anderson Jan 1990

"Flowering Windows" For Crops, W. K. Anderson

Experimental Summaries - Plant Research

Trials:

Wheat - 90BA 38-42, 90N 37-41,

Barley - 90BA 48-52, 90N 50-54, 90C 19-23, 90C 29-33, 90WH 46-49, 90EB 22-26, 90M 31-35. 90WH 56-59, 90E 41-45, 90MT 50-54, 90M 41-45, 90SG 49-53.

Oats - 90BA 43-47, 90N 45-49, 90C 24-28, 90EB 17-21, 90WH 51-54, 90E 36-40, 90MT 45-49, 90M 36-40, 90SG 44-48.

Lupins - 90BA 53-57, 90N 55-59, 90EB 8-12, 90WH 61-64, 90MT 55-59, 90M 46-50.

Location: Chapman Research Station, Badgingarra Research Station, Wongan Hills Research Station, Merredin Research Station, East Beverley Research Station, Newdegate Research Station, Mount Barker Research Station and Salmon Gums Research Station.

To determine the …


Pod Setting Of Lupins On The South Coast., M. Seymour Jan 1990

Pod Setting Of Lupins On The South Coast., M. Seymour

Experimental Summaries - Plant Research

Trial 90ES7

Lupin pod setting study.

To investigate the effect of time of sowing on the flowering and pod set of lupins, when grown in high rainfall/long growing season environments.


Weed Control In Cereals And Pastures Including Declared Plants., J. Peirce, B. J. Rayner Jan 1990

Weed Control In Cereals And Pastures Including Declared Plants., J. Peirce, B. J. Rayner

Experimental Summaries - Plant Research

Trial 90C49

Grass and broad leaved weed control in direct sown crops.

Location: Chapman Valley Research Station.

The low rate of sprayseed with diuron was not as effective on the grasses. It may indicate some antagonism within the mix as the same rate of sprayseed with metribuzin did not cause any drop in grass control. The addition of 2, 4-D amine may have boosted the mixes activity on capeweed as the sprayseed metribuzin mix was not very good on capeweed.

Trial 90EB37

Grass and broad leaved weed control in direct sown crops.

Location: East Beverley Annex.

Part of the trial …


Ecology And Control Of Brome Grass In Cropping Systems., Christine Zaicou Jan 1990

Ecology And Control Of Brome Grass In Cropping Systems., Christine Zaicou

Experimental Summaries - Plant Research

1. Assessment of the timing and increasing rates of ethiozin on brome grass control and wheat yield.

Trial 90EC16, 90GE115,

Control of brome grass in wheat using Ethiozin applied immediately before the following seeding and post-emergence.

Location: East Chapman Research Station, Allanooka

Incomplete factorial with three replications.

Unfortunately, further research and development of ethiozin has ceased world wide. It has suggested a result of limited activity on target weeds other than brome grass and economics.

2. Evaluation of pine kraft lignin with metribuzin and their incorporation, on wheat yield and brome grass control.

Trial 90EC18

Evaluating pine kraft lignin (PKL) …


Long Term Minimum Tillage Investigations., R. J. Jarvis Jan 1990

Long Term Minimum Tillage Investigations., R. J. Jarvis

Experimental Summaries - Plant Research

Trial 77M13

Location: Merredin

This site was in wheat in 1975 and 1976 before the treatments commenced on continuous wheat in 1977.

77M56

Location: Merredin

Sited alongside 77M13 with the same paddock history. Commenced the wheat/pasture rotation after wheat in 1975 and 1976.

Trial 86M79

Chemical and cultivated fallow in a pasture/wheat rotation on heavy land.

Location: Merredin.

At Merredin on salmon gum/gimlet soil. Pasture treatments and soil moisture measurements were conducted in 1990. Wheat 1991.

Trial 87NA80, 81, 82, 83

Direct drilling with modified combines compared with cultivation for pasture/wheat rotations with grass control treatments in the pasture year. …


Deep Banding Phosphate For Lupins. 1990 Results., R. J. Jarvis Jan 1990

Deep Banding Phosphate For Lupins. 1990 Results., R. J. Jarvis

Experimental Summaries - Plant Research

Trials 90SC1, 90SC21, 90SC12, 88SC28, 90WH73

There is no doubt that deep banding is the only effective way to provide an efficient supply of phosphorus for lupins in the eastern wheatbelt.

Location: Carrabin, Wongan Hills.


Development And Management Of Cattle Pastures In The High Rainfall Zone., Tony Albertsen Jan 1990

Development And Management Of Cattle Pastures In The High Rainfall Zone., Tony Albertsen

Experimental Summaries - Plant Research

Trial 87V8

Development and management of cattle pastures in the high rainfall zone.

To compare the effect of pasture species, pasture management and grazing management on pasture quantity, quality and cattle production.

Phalaris evaluation

In 1989 ninety three lines of Phalaris agrundinacea backcross with P. aquatica, bred by Dr. R.N. Oram (CSIRO Canberra) were drilled sown into unreplicated 10m single row plots at Vasse Research Station. In addition 7 controls (with two replications) were planted. Similar trials were planted by Mr. L. Cransberg (Albany) and Dr. R.N. Oram (Bendigo).

Evaluation of annual and short term rotation ryegrass.

The increasing range …


Rates Of Phosphorus And Potassium For Lupins On The South Coast,, M. Seymour Jan 1990

Rates Of Phosphorus And Potassium For Lupins On The South Coast,, M. Seymour

Experimental Summaries - Plant Research

Trial 90ES23

Phosphorus and potassium response of lupins in high rainfall areas.

Location: Neridup

To evaluate the response of lupins to Phosphorus and Potassium response of lupins in high rainfall areas.


Depth Of Placement And Rates Of Nitrogen For Lupins On The South Coast., M. Seymour Jan 1990

Depth Of Placement And Rates Of Nitrogen For Lupins On The South Coast., M. Seymour

Experimental Summaries - Plant Research

Trial 90E13

Starter nitrogen for lupins, rates x depth of placement.

To determine if the application of nitrogen at seeding will enable lupins to grow vigorously at the beginning of the season, and have better growth at flowering. Deep placement is used to reduce the effects of high nitrogen fertiliser on plant establishment.


Effect Of Pasture Species On Pasture Production And Following Cereal Yields On Heavy Textured Soils In Low Rainfall Areas. Regeneration Of Pasture Legume Cultivars On Low Rainfall Red Loam Soils., Bradley Nutt Jan 1990

Effect Of Pasture Species On Pasture Production And Following Cereal Yields On Heavy Textured Soils In Low Rainfall Areas. Regeneration Of Pasture Legume Cultivars On Low Rainfall Red Loam Soils., Bradley Nutt

Experimental Summaries - Plant Research

Trial 90GE17

Aphid tolerance evaluation in annual medics

Location: Tenindewa

Maturity and seed yields of annual medic lines with or with out aphid control using Pirmor.

Trial 90GE116

Evaluation of aphid tolerance in annual medics

Location: Tenindewa

Dry matter and seed yield of annual medic lines with and without aphid control using Pirmor.

Trial 90GE34

Effect of pasture species on pasture production and cereal yields on low rainfall red loams.

Location: North Mullewa Research Station, Morawa Agricultural School.

Regeneration of annual pasture cultivars on hardsetting red clay loams at North Mullewa and Morawa in 1989 and 1990.

Trial 88TS63

Effect …


Potassium Nutrition Of Lupins On The Sandplain Soils Of Western Australia., N. K. Edwards Jan 1990

Potassium Nutrition Of Lupins On The Sandplain Soils Of Western Australia., N. K. Edwards

Experimental Summaries - Plant Research

Aim: Develop recommendations for optimal potassium fertilizer application strategies for lupin production. Further develop soil and tissue test calibrations for lupin grain production.

Trial 89EC32

Potassium nutrition of lupins on sandplain soils.

Location: East Chapman Research Station.

Fertilizer: At sowing: 50 kg/ha DAP, 50 kg/ha Urea topdressed. 100 kg/ha Urea topdressed 10/7.

Trial 89GE90

Potassium nutrition of lupins on sandplain soils.

Location: Allanooka

Fertilizer: At sowing: 120 kg/ha Agras No. 1. 100 kg/ha Urea topdressed 10/7.

Trial 89MO51

Potassium nutrition of lupins on sandplain soils.

Location: Lancelin.

Fertilizer: At sowing: 110 kg/ha Agras No. 1. 60 kg/ha Urea topdressed 10/7. …


Evaluation Of The Genetic Resources Of T. Cherleri (Cupped Clover) And A Selected Number Of Lines Of T. Resupinatum On Shallow Acid, Granitic Soils Of The Western Austalian Wheatbelt., R. Snowball Jan 1990

Evaluation Of The Genetic Resources Of T. Cherleri (Cupped Clover) And A Selected Number Of Lines Of T. Resupinatum On Shallow Acid, Granitic Soils Of The Western Austalian Wheatbelt., R. Snowball

Experimental Summaries - Plant Research

Trial 90ME68

To evaluate Cupped clover (T. cherleri) and Persian clover (T. resupinatum) on a shallow, granitic, infertile soil, which is reported to be suitable for the growth of Cupped clover, but too acid to support medics successfully and where subterranean clover struggles to persist.


The Development Of An Efficient Lupin Harvesting Front, E D. Blanchard Jan 1989

The Development Of An Efficient Lupin Harvesting Front, E D. Blanchard

Journal of the Department of Agriculture, Western Australia, Series 4

Harvest losses represent a significant reduction in lupin production and farm productivity.

Since 1984, the Department's Farm Machinery Research and Liaison Unit at the Dryland Research Institute has studied the lupin harvesting operation to improve its mechanical efficiency. An experimental and a prototype harvesting front were built and tested in the field. Guidlines for efficient lupin harvesting were produced, and commercial modifications developed.


Tolerance Of Lupins To Simazine, K E. Oliver Jan 1989

Tolerance Of Lupins To Simazine, K E. Oliver

Experimental Summaries - Plant Research

Tolerance of lupins to triazine herbicides, 89GL21, 89GL24. Application of atrazine post emergence of the soil, 89GL22, 89GL25. Application of atrazine post emergence to the foliage, 89GL23, 89GL26. Trials with mutated lupin population, 89WH72, 89MC32.


Herbicide Residues, T Piper Jan 1989

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 Jan 1989

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.


Soil-Plant-Sheep Organochlorine Pesticide Research, Tony Albertsen Jan 1989

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 …


Medic Variety Evaluation., C. K. Revell Jan 1989

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.


Rotational Experiments., C. K. Revell Jan 1989

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.


Erosion Potential Of Phomopsis-Resistant Lupins, D J. Carter, Paul Findlater Jan 1989

Erosion Potential Of Phomopsis-Resistant Lupins, D J. Carter, Paul Findlater

Journal of the Department of Agriculture, Western Australia, Series 4

During lupin harvesting, up to 20 per cent of the grain remains on the ground. This non-harvested or pilt grain is a valuable feed for sheep during early summer because the pods, leaf and stem generally provide little nutrient in the stubnbles. In addition, the more efficient the weed control, the less valuable are the stubbles.

The disease lupinosis caused by Phomopsis leptostromiformis restricts the amount of grazing from the lupin stubbles, and hence the risk of wind-erosion of stubble paddocks.

However, the introduction of lupin varieties moderately resistant to Phomopsis and with reduced potential to cause lupinosis means that …


Water Erosion On Vegetable Growing Land In South Western Australia, D J. Mcfarlane, N D. Delroy, H V. Gratte, J P. Middlemas, A M E Van Vreeswyk, I Mckissock Jan 1989

Water Erosion On Vegetable Growing Land In South Western Australia, D J. Mcfarlane, N D. Delroy, H V. Gratte, J P. Middlemas, A M E Van Vreeswyk, I Mckissock

Resource management technical reports

The most serious erosion was found to be occurring in the Donnybrook area due to a combination of erosive winter rainfall, steep slopes and erodible soils. The most serious erosion was found to occur when storm runoff entered the vegetable plots from above, providing a transporting medium for the cultivated soil. A predictive model of erosion showed that soil texture, furrow slope, plot length, rainfall erosivity and canopy cover were significant factors affecting soil loss.


Long Season Wheat Production On The South Coast Of Western Australia., W R. Smith, A P. Webster Jan 1989

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.


Nitrogenous Fertilizers For Cereals., M. G. Mason Jan 1989

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: …