Life Sciences Commons^™

Seed Rate And Nitrogen On Wheat, J W. Bowden

Experimental Summaries - Plant Research

Trial 87MO49

Location: Wannamal

To examine the economic choice of nitrogen and seeding rates in a leaching situation with a high yield potential.
To test the nitrogen section of NP-Decide.
To gather data that enables competition for resources to be examined by regarding the crop as a population of individual plants.

Nitrogen And Phosphorus Rates On Wheat, J W. Bowden

Experimental Summaries - Plant Research

Trial 87MO69

Nitrogen and phosphorus rates on wheat.

Location: Cadoux

To characterize an N x P response surface on wheat and test out recommendation system, NP Decide.

Eastern Wheatbelt Nutrition Studies, W Porter, S Carr

Experimental Summaries - Plant Research

To determine the effectiveness of foliar applied phosphate relative to soil applied phosphorus.
To compare the effectiveness of the number of times of application of foliar phosphorus.
87M81, 87ME106

General Comments And Comparative Yields, W Porter, S Carr

Experimental Summaries - Plant Research

General comments and comparative yields on all trials.
87ME77, 87ME78, 87ME79, 87ME80 and 87ME81, 87ME82, 87ME83, 87ME84, 87ME85, 8714E88

Residual Value Of Copper, Zinc And Sulphur With High Analysis Nitrogen And Phosphorus Fertilizer Under Continuous Cropping Situation, R F. Brennan

Experimental Summaries - Plant Research

Trial 86LG34

Location: South Newdegate

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

Effects Of Rates Of Nitrogen On The Copper And Zinc Concentration And Grain Yield Of Wheat Plants Grown On Old Land, R F. Brennan

Experimental Summaries - Plant Research

Trial 87JE21

Location: West River

To examine the possibility of rates of nitrogen inducing copper and zinc deficiency in wheat.

Effect Of Nitrogen Rates On The Copper Concentration, Dry Matter Production And Grain Yield Of Wheat Grown On A Residual Copper Trial., R F. Brennan

Experimental Summaries - Plant Research

Trial 67E8

Location: Esperance Downs Research Station.

The trial was originally designed to measure the residual effectiveness of rates of copper sulphate drilled in 1967.

The Effects Of Rates Of Nitrogen On The Zinc Status And Of Wheat Plants Grown In Newland, R F. Brennan

Experimental Summaries - Plant Research

To measure the effects of DAP and high nitrogen rates on the severity of zinc deficiency of wheat grown on this newland site.
87JE34

Deep Placement Of Manganese For Lupins, R F. Brennan

Experimental Summaries - Plant Research

Trial 87E44

Location: Esperance Downs Research Station

To determine the effect of deep placement of manganese and foliar applied manganese on lupin plant tissue levels, split seed incidence and grain yield.
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Manipulation Of The Soil Seed Reserves Of Bromus Diandrus And B. Rigidus By Enhancing The Breakdown In Seed Dormancy., A H. Cheam

Experimental Summaries - Plant Research

Location: South Perth Field Plots

Previous studies on the seed bank of Bromus diandrus indicated that shallow burial of newly shed seeds enhanced the breakdown in seed dormancy over the summer period. To bury the Bromus seeds one practical approach is to introduce sheep into the paddock.
This study is a repeat of the previous work but included B. rigidus, another species of Bromus, that is commonly ground growing in association with B. diandrus.
Location: South Perth Field Plots.

Preplanting Operations To Enhance The Rate Of Decline Of Doublegee Seeds In The Soil. Postplanting Operations To Enhance The Rate Of Decline Of Doublegee Seeds In The Soil., A H. Cheam

Experimental Summaries - Plant Research

Trial 85C89

Location: Chapman Research Station

To determine the effect of various preplanting operations, including the use of soil compaction, on the rate of decline of doublegee seeds in the soil.

Trial 85C90.

Location: Chapman Research Station.

To determine the effect of soil compaction after crop seeding on the rate of decline of doublegee in the soil.

Matricaria/Globe Chamomile (Pentzia Globifera) Density And Seed Production, J. Dodd

Experimental Summaries - Plant Research

Location: Muckinbudin.

Preliminary measurement of plant density and seed production were made in November 1987 at two infested properties near Muckinbudin.

Vermin fence herbicide trials (Established by J. R. Peirce 85ME63, 65, 68, 69, 70)

During assessment of the vermin fence herbicide trials in November 1987, certain plants in the sprayed plots were noted as being undamaged, even by the highest rates of herbicides used.

The Ecology Of Skeleton Weed In Western Australia., J. Dodd

Experimental Summaries - Plant Research

Response of established skeleton weed to tillage. 87PE21
To demonstrate the effect of ploughing vegetative plants of skeleton weed during winter.

Seed production in variegated thistle 86AL78.
Effects of capitulum age and mechanical control on seed production.

Peas - Mcpa Crop Tolerance Time Of Application, D. J. Gilbey

Experimental Summaries - Plant Research

To study the effect of time of spraying MCPA on peas.
87A36

Peas - Mcpa Amine Vs Na Salt, D. J. Gilbey

Experimental Summaries - Plant Research

To study the effect of MCPA amine and Na salt on peas and weeds.
87A39

Radish Control In Lupins - Probe, D. J. Gilbey

Experimental Summaries - Plant Research

To study the effect of Probe on lupins and wild radish.
87MO55.

Radish Control In Lupins - Brodal., D J. Gilbey

Experimental Summaries - Plant Research

To study the effect of Brodal on lupins and radish.
87GE84, 87TS35, 87MO52, 87NO91, 86MO33.

Faba Beans, Chick Peas, Lentils And Vetch - Herbicide Efficacy., D. J. Gilbey, G. H. Walton, J. Warren

Experimental Summaries - Plant Research

To study the effect of several herbicides on weeds, Faba bean, vetch, lentils and chick peas.
87KA82.

Peas - New Herbicides., D. J. Gilbey

Experimental Summaries - Plant Research

To study the effect of several new herbicides on peas and weeds.
87A35

Post Emergence Weed Control In Lupins., D. J. Gilbey

Experimental Summaries - Plant Research

To study the effect of post emergence herbicides on lupins and weeds.
87WH56, 87WH65.

Peas - Broadleaf Weed Control, D. J. Gilbey

Experimental Summaries - Plant Research

To study the effect of several herbicides on peas and weeds.
87C70, 87KA81.

Brome Grass Control In Wheat, G. S. Gill, R. L. Thomas

Experimental Summaries - Plant Research

Brome grass control in wheat
87GE29, 87WH9

Competition between wheat and mixtures of brome grass and doublegees.
87GE30

Wild Oat Control With Hoegrass With And Without Oil, R. Madin, J. Buckley

Experimental Summaries - Plant Research

Trial 87NO08
All treatments except Combine + Oil yielded significantly better than the control. Control of wild oats with Grasp was superior to many other treatments and this was reflected in the yield.

Trial 87N009
All treatments yielded significantly better than the control however there was no difference between herbicides, rates of use or additives. The exception being 0.75 L Hoegrass +WA which yielded significantly less than Grasp + oil.

Crop Establishment, R. Madin, J. Buckley

Experimental Summaries - Plant Research

Trial effect of timing of Roundup CT and Spray.Seed application and cultivation on crop establishment and growth.
87WH53, 87NO85

The general tendency was for yield to decrease as the time to seeding after Spray.Seed application increased.
For trial 87NO85 the site was a 'problem', heavy textured soil where crop emergence problems following glyphosate had been experienced in previous years.

Crop establishment - time of seeding following herbicide application.
87A37

Use of a knockdown herbicide greatly increased yield when compared to the unsprayed treatments. Further work is required to resolve contrasting results.

Tolerance Of Ceral Varieties To Grasp, R. Madin, J. Buckley

Experimental Summaries - Plant Research

The site remained mostly weed free throughout the season apart from some invasion by crassula spp. between plots. Some site variation was reflected in yield variation between replicates. The effects of Grasp on all varieties of wheat and Schooner barley were evident soon after spraying.
87A34 (2)

Tolerance Of Cereal Varieties To Hoegrass + Oil, R. Madin, J. Buckley

Experimental Summaries - Plant Research

Almost invariably, Hoegrass applied to wheat and barley varieties reduced crop vigour assessed ten weeks after spraying.
87A34(1)

Rates Of Ally And Glean For Cape Tulip Control., R. Madin, J. Buckley

Experimental Summaries - Plant Research

Evaluation in 1987 indicated that Ally and Glean at all rates gave 100% control of Cape Tulip at York with minimal pasture affect on species other than clover.
87NO110, 87NO110(1), 87NO110(2), 87NO110(3)

Evaluation Of Additives With Bracken Herbicides Applied To Boomsprayer., R. Madin, J. Buckley

Experimental Summaries - Plant Research

Treatments were applied in December 1987. Height of the Bracken made application by boom difficult due to inability to adequately raise the boom to give clearance. Some brushing of the Bracken with the boom was unavoidable. Assessment of the trial will be made in March 1988.

The Demography Of Doublegee. Ecological Studies On Arum Lily., F. D. Panetta

Experimental Summaries - Plant Research

3.1 Growth of doublegees under summer irrigation. (87A40)

The weevil, Perapion antiquum is a potential biological control agent of doublegee. However, it exhibits large population crashes during the summer months in the summer-dry areas of the Western Caped of South Africa, where it is native. It has been suggested that one means of successfully establishing Perapion in Western Australia could be to maintain populations in 'oases' over the summer months. The aim of this experiment was to determine how readily doublegee could be maintained in a non-senescent phase under irrigated and shaded conditions.

3.2 Doublegee demography in cereal crops (87GE30) …

Effect Of Different Chemical Treatments On Capeweed Control And Crop Yield., J. R. Peirce, B. J. Rayner

Experimental Summaries - Plant Research

Trial 87WH60

Control of capweed was obtained using post-emergence in-crop herbicides. Good control was on most of the treatments applied before seeding.

Most products showed good ryegrass control are not usually effective, assume some other factor operating. Treatment usually associated with good ryegrass control have higher ryegrass densities than the treatments using herbicides with only broadleaved variety.

Although large reductions in density of silvergrass were obtained none was significantly better than the unsprayed. Some treatments particularly those favouring grass dominance allowed silvergrass density to build up.

Bromegrass appears to be very sensitive to competition from capeweed. Where there was high …