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Agronomy and Crop Sciences

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Articles 9661 - 9690 of 10379

Full-Text Articles in Soil Science

Field Pea Agronomy., G. H. Walton, T. R. Trent Jan 1990

Field Pea Agronomy., G. H. Walton, T. R. Trent

Experimental Summaries - Plant Research

Trial 90M64

Site and variety effect on ovule abortion.

Location: Merredin Research Station CSIRO lease block.

To understand the causes of ovule abortion in field peas.

Trial 90M65

Response to seeding rates of peas with different plant architecture.

Location: Merredin Research Station, paddock 8CW3

To compare the yield responses of different pea types to seeding rates.

Trial 90A26

Nitrogen fixation in field pea.

Location: Avondale Research Station, paddock 1C

To compare the growth, N-fixation and yield of 'nodulating' crossbred material against the commercial cultivars of Dundale, Alma, Wirrega and Dinku.

Trial 90A18

Chickpea germplasm introductions.

Location: Avondale Research Station, paddock …


Phosphorus Nutrition., M. D. Bolland, M. J. Baker Jan 1990

Phosphorus Nutrition., M. D. Bolland, M. J. Baker

Experimental Summaries - Plant Research

Evaluation of soil test for phosphate on sandy soils.

Results presented for this project, commenced in 1988, which started as a joint project between the Department of Agriculture and Soil Science and Plant Nutrition, School of Agriculture, University of Western Australia.

In the field experiments, 10 levels of superphosphate (three replicates) were applied in May 1988, and 10 levels of superphosphate (also three replicates) were applied in May 1989 onto an adjacent area to the 1988 treatments. Colwell P I(soil test values) and yield data are presented for 1988 and 1989 for the 1988 treatments layed out in 1988, and …


Getting The Best Out Of Our Wheats., Brenda Shackley, L. Lambert Jan 1990

Getting The Best Out Of Our Wheats., Brenda Shackley, L. Lambert

Experimental Summaries - Plant Research

Trials: 90KA82 (TOS1), 90KA83 (TOS 2), 90KA84 (TOS 3)
90LG4 (TOS 1), 90LG45 (TOS 2), 90LG46 (TOS 3)
90LG47 (TOS 1), 90LG48 (TOS 2), 90LG49 (TOS 3)
90N42 (TOS 1), 90N43 (TOS 2), 90N44 (TOS 3)

Variety * time of sowing (TOS)

Locations: Wagin, Tarin Rock, Newdegate Research Station and Lake Varley.

Determine the optimum sowing date for maximum yield for a range of released and unreleased wheat cultivars.

Trials: 90KA79, 90LG50, 90LG51, 90N62

Nitrogen application.

Locations: Wagin, Tarin Rock, Newdegate Station and Lake Varley.

Determine the response of released and unreleased wheat cultivars to the application of nitrogen.

Trials: …


Seeding Rate For Lupins For The South Coast., M. Seymour Jan 1990

Seeding Rate For Lupins For The South Coast., M. Seymour

Experimental Summaries - Plant Research

Trial 90ES1, 90ES2, 90ES3, 90ES4, 90E5

Lupin seed rate x variety.

Location: Kendells Rd Scaddan, Condingup, Mt Ridley.

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

Trial 90SG5, 90SG6

Lupin seed rate x variety.

Location: Salmon Gums Research Station.

To evaluate the response of lupin to a range of plant densities.

Trial 90KO1

Lupin seed rate x variety

Location: South Stirlings.

To evaluate the response of lupin to a range of plant densities when grown in high/long growing season environments.


Use Of Soil Water Measurements To Assist Crop Management In Low Rainfall Areas., S. Mckeague, M. Perry, D. Tennant Jan 1990

Use Of Soil Water Measurements To Assist Crop Management In Low Rainfall Areas., S. Mckeague, M. Perry, D. Tennant

Experimental Summaries - Plant Research

Trial 90M9

Trial summary.

Location: Merredin Research Station.

90M9 was established as part of the long term monitoring system to obtain base information on water use from several different soils. A simple rotation experiment was established in T3 on the Merredin Research Station.

Trial 89ME32

Rowspacing summary.

Location: Merredin Research Station.

89ME32 was monitored as part of the long term monitoring system. Previous to 1990 two years of continued measurements had been done on the same soil type. Located on the CSIRO lease block above the Merredin Research Station on Crook's property.

Trial 87M71

Heavyload rowspacing summary.

Location: Merredin Research …


Direct Drilling On Sandplain Soils., Carmel Schmidt Jan 1990

Direct Drilling On Sandplain Soils., Carmel Schmidt

Experimental Summaries - Plant Research

Trial 90EC29

Effect of depth and degree of soil disturbance on root and shoot growth of wheat on wind erosion prone sandy soil.

Location: East Chapman Research Station.

The long-term fertility and stability of the yellow, grey and white sands which make up 60% of the northern wheatbelt soils can only be safeguarded through strict adherence to conservation cropping practices: notably, direct drilling of both cereal and lupin crops. Work by R. Jarvis has shown a 10 - 15% yield advantage due to cultivation of sandplain soils, and data suggest that it is cultivation depth (degree of soil loosening) rather …


Systems For Very Early Sowing Of Wheat In The Central Wheatbelt Of Western Autralian, A. S. Heinrich Jan 1990

Systems For Very Early Sowing Of Wheat In The Central Wheatbelt Of Western Autralian, A. S. Heinrich

Experimental Summaries - Plant Research

To develop the management system for very early sown wheat crops in the central wheat belt of Western Australia.

Trial 90EB34 and 90EB35

Location: East Beverley Annex.

90EB34 3 times of sowing at fortnightly intervals after the 9th April, with 8 varieties of wheat.

90EB35, 4 times of sowing at fortnightly intervals after the 23rd April with 9 varieties of wheat.

Trial 90No77 - 90NO80

Location: York

Each time of sowing has a separate trial number, 90NO77 TOS 1, 90NO78 TOS 2, 90NO79 TOS 3 and 90NO80 TOS 4.

Trial 90NO81

Location: Goomalling

TREATMENTS: - 3 times of sowing 25/4/90, …


Murex Medic Field Evaluation., D. J. Gillespie, D. R. Mcclements, D. S. Francis Jan 1990

Murex Medic Field Evaluation., D. J. Gillespie, D. R. Mcclements, D. S. Francis

Experimental Summaries - Plant Research

Trials: 90GE113, 90MO62, 90WH87, 90ME72, 90NO115, 90A24, 90AB17, 90AL35

Locations: Geraldton, New Norcia, Wongan Hills, Merredin, Southern Brook, Avondale, Katanning, Tenderden.

The selection SEP29.1 was outstanding for both dry matter production and seed yield over a wide range of sites varying in both rainfall and soil type. On the basis of these trials, six lines have been selected for further evaluation in 1991.

They are: SEP29.1 SEP26.2.7 GRC69 GRC87.1 87F01.28 87FB2.36

Trials 90A25 and 90NO116

Redlegged earthmite field experiments.

Very low levels of redlegged earthmite and only minor damage to test varieties was recorded in this trial. Damage ratings were …


Stubble Management., R. J. Jarvis Jan 1990

Stubble Management., R. J. Jarvis

Experimental Summaries - Plant Research

Trial 79M7

Yellow loamy sand - Mallee scub

Continuous wheat since 1978. Treatments commenced 1979.

Location: Merredin.

The old cultivation treatments carried out since 1979 were removed in 1987. The trial will continue indefinitely with only burnt and unburnt stubble treatments.

Trial 82M34

Salmon Gum/Gimlet clay loam

Location: Merredin.

Continuous wheat since 1981. Treatments commenced 1982.

Trial 79WH6

Grey and yellow loamy sand with gravel.

Location: Wongan Hills.

Grazed blocks grazed to remove approx. half the stubble.


Barley Development Experiment., K. J. Young Jan 1990

Barley Development Experiment., K. J. Young

Experimental Summaries - Plant Research

Trial 88ES1

Mechanisms controlling development in barley.

Location: Melijinup Field Station.

A range of barley varieties have been assessed for their level of adaptation to a range of sowing dates across the cereal growing region of W.A. This study aims to determine the mechanisms controlling development in cultivars which represent the range of development responses available. The relative importance of photoperiod and vernalisation response and inherent earliness will be determined for each variety.


Crop Management In Rows., R. Belford, G P. Riethmuller, D. Tennant, D. Mcginnis, S. Mckeague Jan 1990

Crop Management In Rows., R. Belford, G P. Riethmuller, D. Tennant, D. Mcginnis, S. Mckeague

Experimental Summaries - Plant Research

Trial 87M71

Effect of row spacing and stubble retention on the yield of wheat.

Location: Merredin Research Station.

Treatments, site management and results from 1987, 1988 and 1989 have been described in previous experimental summaries. Four row spacings (9, 18, 27 and 36 cm) are compared in either burnt or stubble retained plots, on a red brown earth on the Merredin Research Station. There are six replicates laid out in a randomised block design.

Trial 90ME32

Effect of row spacing and variety on the yield of wheat.

Location: duplex site at Crooks (see 1989 Experimental Summary)

This trial was carried …


Systems For Early Sowing Of Wheat In Low Rainfall Zones., Nicole Kerr, Glenn Adam Jan 1990

Systems For Early Sowing Of Wheat In Low Rainfall Zones., Nicole Kerr, Glenn Adam

Experimental Summaries - Plant Research

Aims:

(i) use available climatic data to determine when breaks are likely to occur, and assess the risk of crop failure from 'false breaks'.

(ii) determine optimum methods of early crop establishment on a number of soil types, particularly massive earth soils.

(iii) determine the yield advantages of early planting of cereals, and sowing date * variety interactions. (iv) increase adoption of early sowing technology throughout the north-eastern wheatbelt.

Trial 90GE7, 90GE8, 90NM1 and 90GE10

Time of sowing * variety trials.

Location: Balla, North Mullewa and Morawa.

All of the trials the following design: 3 sowing dates (mid May, late …


Deep Phosphate Banding., R. J. Jarvis Jan 1990

Deep Phosphate Banding., R. J. Jarvis

Experimental Summaries - Plant Research

Trial 90A1

Lupins sown 26/4. York gum/jam sandy loam 33 ppm bic. P. Wheat in 1989. Cultivation reduced yield (one pass banding points). Deep banding P overcame this reduction. No additional response to banding compared with TD or D. No response to P. Yield 2.0 t/ha.

Trial 90A2

Wheat sown 8/6. York gum/jam sandy loam 42 ppm bic. P. Lupins in 1989. All treatments had deep cultivation in the one pass. No response to deep band cf. drilled. 23% response to P. Top yield was 1.9 Oa.

88EB12 Wheat sown 5/6. Loamy grey sand/clay 27 ppm bic. P. Lupins in …


Deep Ripping, R. J. Jarvis Jan 1990

Deep Ripping, R. J. Jarvis

Experimental Summaries - Plant Research

Trial 88Ba11,12

Deep ripping at two depths in lupin/oat/wheat rotation on newish land.

Location: Badgingarra Research Station

Sited on the new block of Badgingarra Research Station, these trials aim at examining the response to new rippings each cereal year as well as the response over time to the residual effect of ripping. The rotation is the normal one applied on the Research Station.

Trial 89KO1

Location: Mount Barker Research Station.

Deep ripping for barley and lupins - Kojaneerup Block of MBRS.

Yields not significantly different by A.O.V., however lupin yield declined as the previous year's barley yield increased due to …


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

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

Experimental Summaries - Plant Research

Aims: 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 88BA46

Maintenance application rates of potassium on sandplain soils.

Location: Badgingarra Research Station.

Fertilizer: Pastures and L. cosentinii - 200 kg/ha Super topdressed, wheat - 100 kg/ha Super topdressed, 120 kg/ha Agras No 1 drilled, lupins - 240 kg/ha Super Mn drilled. Urea topdressed on wheat on 26 June, 100 kg/ha.

Trial 88TS69

Maintenance application rates of potassium on sandplain soils

Location: North Eneabba. …


Understanding Crop Growth On Duplex Soils., R. Belford, Miles Dracup, D. Tennant Jan 1990

Understanding Crop Growth On Duplex Soils., R. Belford, Miles Dracup, D. Tennant

Experimental Summaries - Plant Research

Trial 88EB18

Location: East Beverley Research Station

Impeded early root growth.

Using aerial photography and crop growth data from previous seasons we identified areas on the site where crops grow well or poorly. One of the factors implicated in the poor growth areas is impeded early root growth (see Belford et al. and Tennant et at., 1990 Experimental Summaries, this section). Here we describe the problem and outline possible causes.

Trial 88EB18

Growth and yield of wheat and lupin crops at East Beverley.

Location: East Beverley Research Station.

To measure the growth and yield of wheat and lupin crops in …


Time Of Sowing X Variety X Seeding Rate For Lupins On The South Coast., M. Seymour Jan 1990

Time Of Sowing X Variety X Seeding Rate For Lupins On The South Coast., M. Seymour

Experimental Summaries - Plant Research

Trial 90E9

Lupin time of sowing x variety x seed rate.

Location: Esperance.

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


Nitrogen Fertilizers For Cereals In Different Rotations., I. Rowland, M. G. Mason, W. Hawkins Jan 1990

Nitrogen Fertilizers For Cereals In Different Rotations., I. Rowland, M. G. Mason, W. Hawkins

Experimental Summaries - Plant Research

Trial 78B1

Nitrogen fertilizer requirement in alternate crop-pasture rotation.

Location: Badgingarra Research Station.

Soil type: Grey gravelly sand over gravel at about 15-20 cm.

History: Old clover land. All blocks were in clover pasture in 1977.

Trial 89WH19

Nitrogen fertilizer requirement in alternate crop-pasture rotation.

Location: Wongan Hills Research Station.

Soil type: Wongan yellow loamy sand

History: Old clover land. Whole area in clover 1988.

Trial 86WH36

Lupin/Wheat rotation

Location: Wongan Hills Research Station

Soil type: Wongan yellow loamy sand.

History: Cropped to wheat in 1985 on old clover land. Stubble of 1989 crop not burnt.

Trial 87NO84

Pea/Wheat Rotation …


Organochlorine Residues In Soil And Plant., Tony Albertsen Jan 1990

Organochlorine Residues In Soil And Plant., Tony Albertsen

Experimental Summaries - Plant Research

Trial 5812

To determine the relationship between soil and plant Dieldrin contamination in vegetables.

Location: Bunbury Regional Office (experimental site)


Virus Diseases Of Subterranean Clover., R. A. Jones Jan 1990

Virus Diseases Of Subterranean Clover., R. A. Jones

Experimental Summaries - Plant Research

a) Effect of alfalfa mosaic virus infection on productivity of spaced plants.

Location: South Perth.

Spaced plant trials were done with AMV-EW isolate. Young plants of sub. clover cv. Daliak growing in jiffy pots were inoculated with AMV- containing sap or mock-inoculated with healthy sap and then transplanted onto the South Perth plots in paired rows separated by oat buffer rows.

b) Effect of Bean Yellow Mosaic Virus on productivity of grazed swards. (90MT14).

Location: Mt Barker.

A trial was done to examine the effect of BYMV infection on productivity of grazed subterranean clover swards.

c) Persistence of CMV from …


Grain Legume Species Evaluation., M. Seymour Jan 1990

Grain Legume Species Evaluation., M. Seymour

Experimental Summaries - Plant Research

Trial 90ES19, 90ES22

Grain legume species evaluation.

Location: Mt. Ridley.

To evaluate the response of 6 grain legume species over a range of environments and soil types.


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.


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.


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. …


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.