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Evaluation Of Annual And Short Term Rotation Ryegrasses., Tony Albertsen

Experimental Summaries - Plant Research

The increasing range of annual and short term rotation ryegrasses have been evaluated in the high rainfall regions of the South West since 1986. To date promising later maturing cultivars such as Concord (in particular), Progrow, Aristocrat have consistently outyielded the standard early maturing cultivar Wimmera during the early winter period and in spring. These later maturing varieties have the potential to more fully utilise the whole of the growing season and to be conserved as hay during drier spring weather, whilst still retaining digestibility, protein and metabolisable energy. Viable seed production for self regeneration from later cut hay pastures …

Weed Control On The South Coast., J. H. Moore

Experimental Summaries - Plant Research

Trial 90A141

Barley variety tolerance to herbicides.

Location: Gairdner river.

To determine the tolerance of five barley varieties to 19 herbicides and mixtures.

Trial 90AL43

Herbicides for erodium control in serradella.

Location: North Woogenilup.

To determine the efficacy and phytotoxicity of a range of herbicides at varying rates, on erodium in a first year serradella pasture.

Trial 90AL44

Silvergrass control in pasture.

Location: Cheynes Beach Road.

To determine the efficacy of simazine and gramoxone, either tankmixed or individually at varying rates, on silver grass in a clover based pasture.

Trial 90AL45

Pattersons curse control.

To determine which herbicides and at …

Ecology And Control Of Grass Weeds In Cereal Pasture Rotations In The Great Southern Region., A. Wallace

Experimental Summaries - Plant Research

Silvergrass control.

Trial 90AB11

Location: Great Southern Agricultural Research Institute - Katanning.

The site was an established silvergrass dominant pasture on a light sandy soil.

Trial 90KA95

Location: Great Southern Agricultural Research Institute - Katanning

The site was an established silvergrass dominant pasture on a medium clay soil.

Trial 90KA96

Location: Great Southern Agricultural Research Institute - Katanning

The site was an established silvergrass dominant pasture on heavy (Moort type) clay soil.

Simazine was found to be very active against silvergrass on the light sandy site and all rates applied gave complete control. There were some late germinations which enabled …

Stunt Patch Disorder Of Lupins., Miles Dracup

Experimental Summaries - Plant Research

Trial 89ME1 and 90ME5

Stunt patch disorder of lupins.

Location: Merredin.

Studies on the disorder have been initiated (89ME1 and 90ME5) on two sites 15 km south of Merredin. This report will summarize data on:

1) The soil;

2) Soil strength and lupin emergence on 90ME5; and

3) Soil chemical and physical characteristics associated with the patches on 89ME1 (investigations by A. Thomson for B Sc (Agric) dissertation).

Trial 90PE56

Understanding the importance of moisture and temperature in the seedbed on establishment of lupin.

However, despite their importance in determining the success of establishment, there have been few attempts to …

Grain Legume Adaptation To Soil Type, R. J. French

Experimental Summaries - Plant Research

Trial 90ME8, 9 and 10

Location: Bencubbin.

90ME8. Deep loamy sand. pH(CaC12) = 4.9 at surface and 3.7 at 50 cm.
90ME9. Sand over clay at 25-30 cm. pH(CaC12) = 5.7 at surface and 8.3 at 50 cm. 90ME10. Sandy loam over clay at 15 cm. pH(CaC12) = 5.5 at surface and 8.4 at 50 cm

Trial 90ME11 and 13

Location: Totadgin.

90ME11. Deep loamy sand. pH (CaC12) = 4.5 at surface and 3.9 at 50 cm. 90ME13. Loamy sand over sandy clay at 10 cm. pH (CaC12) = not yet available due to instrument difficulties.

Trial 90ME14, 15 and …

Demonstration Of Pasture Cultivars On Various Soil Types In The Geraldton Distict., Brad Nutt

Experimental Summaries - Plant Research

Trial 90GE13

Demonstration of pasture cultivars on a Chapman Valley red/brown sandy loam.

Location: Northern Gulley,

SOIL TYPE: Red/brown sandy loam pH 5 . 4 (water)

Trial 90GE14

Demonstration of pasture cultivars on a gravelly grey sand at Allanooka.

Location: Allanooka.

SOIL TYPE: Gravelly grey sand, pH 5.8 (water)

Trial 90GE15

Demonstration of pasture cultivars on an Eradu sandplain soil.

Location: Ogilivie.

SOIL TYPE: Deep yellow loamy sand, pH 6.0 (water)

Trial 90GE16

Demonstration of pasture cultivars on a low rainfall maasive red earth at Mullewa.

Location: Mullewa.

SOIL TYPE: Red sandy clay loam pH 6.2 (water)

Evaluation And Development Of Pasture Species For Deep Sandy Soils In Low To Medium Rainfall Areas., B. J. Nutt

Experimental Summaries - Plant Research

Trial 90EC1

Effect of species and maturity on dry matter production and water use of annual medic on deep sandplain soil.

Location: East Chapman.

All medic cultivars were preferentially grazed compared to Paros serradella which did not allow a proper comparison between the two species in the grazed treatment. 2. Poor nodulation in Harbinger due to incompatability with the current Group A inoculant (R. meliloti strain WSM 540) resulted in poor-growth-and-low-seed-yield. - 3. Water use was directly related to maturity or time taken to flower ; total water extraction (mm) = 1.48 * days to flower - 41.1 R2 = …

The Role Of Perennial Pasture Species For Increasing Sheep Production In The Medium Rainfall Zone Of W.A., C. M. Saunders

Experimental Summaries - Plant Research

Trials: 90AL33, 90AL34, 90ES56, 90ES57 and 90KA100

91KA117, 91KA116,

Locations: Green Range, Esperance, Pingrup, Katanning, Broomhill.

To examine the productivity and persistence of perennial grasses in the 350-800 mm rainfall zone of W.A.

Economics Of Summer Weed Control., T. Piper

Experimental Summaries - Plant Research

Aims: To test various chemical options for summer weed control; measuring their efficacy, the amount of soil moisture conserved, and follow-up crop yield. A full season cost-benefit could then be produced. Summer rains were widespread in 1990, and summer weed sites were plentiful.

Trial 90A3

Location: Avondale.

This site had adequate moisture for most of the summer. Weeds were growing well when sprayed, and were readily controlled. (df. Wongan Hills). 2,4-D/diuron gave excellent control at the time of spraying but follow-up germinations marred the result.

Trial 90M6

Location: Merredin.

All treatments have failed at this site. Large doublegee and melons …

Soil Science Research Report - 1990

Soil Science Research Reports

Weather Data 1990 Reported from Research Centers ............. 1

Evaluation of Soil Testing for Nitrate-Nitrogen (E.J. Penas) ............. 7

Dynamics of Water in Rigid and Swelling Soils (Dale Swartzendruber) ............. 13

Atrazine Movement as Affected by Pore Size Distribution in a Silt Loam Soil (J.U. Baer, W.L. Powers, P.J. Shea, D.A. Tupy, and C.L. Stueffer-Powell) ............. 15

Effects of Residual Phosphorus Bands on Crop Yield and Their Persistence in the Soil (Mohammed A. Zerkoune, C.A. Shapiro, and D.H. Sander) ............. 19

Nitrogen Fertilization of Smooth Brome (A.B. Ferguson and G.P. Slater) ............. 23

The Effects of a Urease Inhibitor on …

Crop Tolerance To Herbicides., D. Bowran

Experimental Summaries - Plant Research

1. Tolerance of New Cereal Varieties to Current Herbicides EX 5506 Trial Nos: 90AL41, 90EC36, 90EB45, 90KA130, 90M85, 90NA100

2. Tolerance of Current Cereal Varieties to New Herbicides EX 5506 Trial Nos: 90M86, 90EC35, 90N74

3. Metribuzin Tolerance of Cereal Varieties EX 5507 Trial Nos: 90EC37

4. Lupin Tolerance to Herbicides EX 5508 Trial Nos: 90EC34, 90EB44

5. Pea Tolerance to Herbicides EX 5509 Trial Nos: 90KA131, 89KA64

6. Pasture Legume Tolerance to Herbicides EX 64522 Trial Nos: 90KA132,

Plant Growth And Survival In Saline, Waterlogged Soils, Ed Barrett-Lennard, Neil Davidson, Richard Galloway

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

Waterlogged soils in Western Australia are often salt-affected. Recent research has shown that the interaction between waterlogging and salinity has a far greater adverse effect on plant groivth and survival than either of these two factors individually. The consequences of the combined effects of salt and waterlogging for most plant species are increased salt uptake, reduced growth, chlorosis (yellowing of leaves), defoliation, and death. Salt sensitive agricultural species (nonhalophytes) are more severely affected by this interaction than salt tolerant species (halophytes).

Waterlogging : How It Reduces Plant Growth And How Plants Can Overcome Its Effects, Tim Setter, Bob Belford

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

Lack of oxygen is the major cause of limited plant growth in waterlogged soils. When soils become waterlogged less gas diffuses to and from the roots through the soil pores; there are changes in concentrations of mineral elements in soil solutions; and toxic products of roots and soil microorganisms begin to accumulate. These changes adversely affect germination, growth and development of plants.

A Survey Using 14n:15n Natural Abundance Of The N Fixation By Pasture Legumes In The Field And Of Factors Affecting Fixation, P. Sanford

Experimental Summaries - Plant Research

Trial 89AL43, 90AL50, 90KO16

A preliminary survey using 14N:15N natural abundance to assess N2 fixation by pasture legumes in the field.

Location: Albany.

1. Develop a sampling methodology for the 1990 farm survey.
2. An initial assessment of nitrogen fixation by pasture legumes in the field.

Trial 90MT70

Using 14N:15N natural abundance to assess N2-fixation by subterranean clover.

Location Mount Barker Research Station

To examine symbiotic nitrogen fixation by subterranean clover, in detail, through one season in a productive pasture. To better assess the point in the season at which as one time sampling would most accurately determine the proportion …

Yield Potential Of Barley., J H. Moore, G R. Dean

Experimental Summaries - Plant Research

Barley yield potential demonstration, 89A130. Barley yield potential, 89A131. Logan herbicide mixtures, 89AL28. Logran herbicide mixtures for wheat and barley, 89AL29. Darnel control in cereals, 89AL38. Fumitory control in peas, 89AL37. Freezer pea herbicides, 89AL36. Post emergence weed control in processing peas, 89MC16. Post emergence weed control in processing peas, 89MC17. Diuron + 2, 4-DB effect on Zodiac Medic, 89AL41. Bladex, Diuron, 2, 4, DB and pursuit on doublegee in pasture. Diuron + 2, 4-DB for sheep thistle control in pasture. Bracken controlwith brush off, 89AL40.

Herbicide Resistance In Weeds., G. S. Gill

Experimental Summaries - Plant Research

Trial 90WH76

Alternative herbicides for diclofop-methyl resistant annual ryegrass in wheat.

Location: Wongan Hills Research Station.

To investigate the performance of alternative herbicides for the control of diclofop-methyl resistant annual ryegrass in wheat.

Trial 90WH80

Alternative herbicides for diclofop-methyl resistant annual ryegrass in lupins.

Location: Wongan Hills Research Station.

To investigate the performance of alternative herbicides for the control of diclofop-methyl resistant annual ryegrass in lupins

Trial 90A15

Alternative herbicides for Diclofop-methyl resistant wild oats in wheat.

Location: Avondale Research Station.

To investigate the performance of alternative herbicides for the control of diclofop-methyl resistant wild oats in wheat.

Trial 90A17 …

Long-Term Rotation Trials., I. Rowland, W. Hawkins

Experimental Summaries - Plant Research

Trial 66M29

Location: Merredin Research Station.

An old land site, cleared in 1909. First sown to Cyprus Barrel medic in 1955, grazed and topdressed. Cropped, 1962 and 1964. Medic resown in 1965.

Trial 67C13

Location: Chapman Research Station

An old land site, cleared in 1903. Sown to Dwalganup sub clover in 1964, topdressed each year until the start of the trial in 1967. In 1981 to 83 all plots were reseeded with Northam at 20 kg/ha. In 1988 rotations were altered to allow inclusion of grain lupins, the following changes were made:

1. The 4 plots of 2 crop :2 …

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

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 …

Cranola Rapseed Variety Assessment. Cranola Agronomy. Linseed. Tillage., J. D. Warren

Experimental Summaries - Plant Research

Trial 90AB15. 90N68, 90EB39

Canola : assessment of early maturing Stage 2 lines.

Location: Katanning, Newdegate Research Station, East Beverley Annex

Production of Canola in medium rainfall zones offers the opportunity for a rapid expansion of the industry. However presently recommended varieties take too long to mature for the area's shorter growing season. The Stage 2 trials assess Canola lines selected on the basis of earliness from the remnants of Dr Roy's now defunct rapeseed breeding programme as well as selections from Eastern States breeding programmes. The trials arc conducted at three sites to account for environmental effects on cultivar …

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

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

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

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 …

Tactical Nitrogen For Wheat., J. W. Bowden, S. J. Burgess, Ian Fillery

Experimental Summaries - Plant Research

Trial 90NO104, 90NO111, 90NO112, 90MO53

Associated Work: 90N0105,111,112, 90M053,54, 55 and 56

Wheat responses to levels, sources and times of application of nitrogen.

Location: Southern Brook, Regan's Ford

This project characterizes the dynamics of nitrogen supply to a wheat crop at each of the sites on which various methods of making fertilizer recommendation were tested. It supposedly provides the "optimum" nitrogen fertilizer regime as well as detailed information on nitrogen supply and demand so that results can be made transferable to other situations.

Trial 90NO105, 90NO112, 90M054

Related trials: 90N0104, 105,111,112; 90M053,54,55 and 56

Tactical nitrogen application for wheat.

Location: …

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, …

Evaluation Of Perennial And Long Season Annual Trifolium Species On A Summer Moist Site At Manjimup., R. Snowball

Experimental Summaries - Plant Research

Trial 90MC26

Compare existing lines of Strawberry clover with promising lines of long season annual clover species.

Pursuit For Weed Control In Peas., S. Curtin

Experimental Summaries - Plant Research

All trials were located in Merredin.

Trial 90ME86

This trial was one of the best demonstrations of pursuits effectiveness against mustard in particular. Other weeds were rough poppy and ryegrass and a small amount of cereal and doublegee.

250 ml applied immediate before seeding (IBS) was by far the best treatment with 100% control of mustard and poppy and good ryegrass control. This is in contract to 375 ml most emergent which had good control of mustard (77%) and suppression of ryegrass. There was no yield advantage from the post emergent treatment but there was a 55% yield increase from …

Weed Control In Crops And Pasture., J. Buckley

Experimental Summaries - Plant Research

Trial 90WH74

Crop establishment trial

Location: Wongan Hills Research Station.

To assess the effect of timing of roundup and sprayseed application and cultivation on crop growth.

Trial 90AB19

Ryegrass control in wheat using slow release trifluralin.

Location: Katanning.

To compare 2 experimental formulations of controlled release trifluralin at 4 rates and 2 timings with some commonly used herbicides for the control of ryegrass in wheat.

Trial 90ME84

Early application of 2, 4-D to wheat.

Location: Corrigin.

To assess the use of 2,4-D.amine at early times of application for the control of broadleaf weeds in wheat.

Trial 90WH92

Early application of …

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 …