Agronomy and Crop Sciences Commons^™

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

Peas - Broadleaf Weed Control, D. J. Gilbey

Experimental Summaries - Plant Research

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

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.

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.

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.

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.

Pasture Manipulation And Spraytopping For Barley Grass In A Medic Pasture., P. Stewart, L. Mann

Experimental Summaries - Plant Research

Trial 87KA53

The experiment was designed to determine:

1.The relative effectiveness of three herbicides with differing modes of action for barley grass control.
2. The phenological development stage at which barley grass is most susceptible to the common spraytopping herbicides.
3. The effects of early (pasture manipulation) and late (spraytopping) herbicide application on pasture production, pasture quality, barley grass control, medic growth and medic seed set.
4. The effects the herbicides have on the grain yield of a following cereal crop.

Control Of Doublegee In Sub. Clover And Medic Pastures., P. Stewart, L. Mann

Experimental Summaries - Plant Research

Trial 87ME61, 87ME68, 87WH49, 87ES39, 87NO80(B), 87NO80, 87WH67.

Doublegees in pasture are a major concern of many farmers in most of the agricultural areas in Western Australia. In pasture, doublegees tend to compete strongly the first year after crop and then decline in subsequent years. When cropped, doublegees again appear in large numbers. Unfortunately, the WADA recommendation for doublegee control in pasture of Tribunil at 850 g/ha is now very expensive at $17/ha. A possible alternative is 2,4-D amine, but medics are very sensitive to this. 2,4-DB is another recommendation, but this tends to have low efficacy against doublegees and …

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)

Control Of Capeweed Prior To Sowing Crop., J. R. Pierce, B. J. Rayner

Experimental Summaries - Plant Research

All treatments gave significant yield benefits over the untreated. Mixtures containing diuron did not cause any significant crop damage although yields on three of the treatments using 1.5 L/ha were low despite the good weed control.
87WH59

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)

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.

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 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.

Effects Of Residue Levels Of Glean On Lupin Growth, And Possible Synergism By Hoegrass., Terry Piper, Patrick Pigott

Experimental Summaries - Plant Research

Trial 87PE37

This trial was conducted to confirm the results of 86WH53 and 87WH64. The trial commenced in September and in a glasshouse thus temperatures were higher and growth faster then in the field trials.
There are no significant effects of soil applied Glean or Hoegrass, and no interaction between the two herbicides.
In contrast, there is a very significant stunting of plants by Glean applied post emergence if Hoegrass is co-applied, but not by Glean alone.

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)

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

Chemical Control Of Four O'Clock (Oxalis Purpurea) And Narrow Leaf Oxalis (Oxalis Glabra)., J. R. Peirce, B. J. Rayner

Experimental Summaries - Plant Research

Trial 97NO95

Control of small leaved Oxalis - Logran gave reasonable control. Post seeding treatments using Isoproturon gave very poor control.

Control of Oxalis purpurea (Four O'clock) - Logran either as a single application or a mixture with Isoproturon gave best control.

Control of clover - Isoproturon 4 L (post), Ally and Logran (40 g) gave 100% control.

Control of erodium - Logran gave very poor control.

Control of grasses - Isoproturon 2 & 4 Li/ha post emergent gave the best control of grasses.

Control of Four O'clock in cereals - Crop yield - Treatments using single doses of Isoproturon …

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) …

Control Of Soursob (Oxalis Pres-Caprae) In Cereals, J. R. Pierce, B. J. Rayner

Experimental Summaries - Plant Research

Trial 87NO107

Plant counts for soursob and Four O'clock will be more accurate when counts taken after the break of 1988 season to determine the bulb production from last season.

Ally gave good control of doublegee. Isoproturon or mixtures with Isoproturon also gave good doublegee control. Logran & Glean were weak on doublegee.

Effect Of Time Of Spraying Prior To Seeding For Capeweed Control., J. R. Peirce, B. J. Rayner

Experimental Summaries - Plant Research

Trial 87WH61

Significant yield increases were obtained by applying chemicals pre-sowing to control capeweed. Time of spraying also had a significant effect on crop yield. Best yields were obtained from the treatment four weeks before seeding.

Good capeweed control (four weeks before seeding) may have been due to the condition of the weeds. Prior to spraying 50 mm of rain was recorded and may have freshened up the capeweed making it more susceptible to the chemical.

Control Of Four O'Clock (Oxalis Purpurea) In Cereals., J. R. Peirce, B. J. Rayner

Experimental Summaries - Plant Research

Trial 87KA85

Because of the late dry season, yields were below expected. Under these conditions there were high visual crop damages recorded early after the treatments applied.

Chemical Control Of Skeleton Weed., J. R. Peirce, B. J. Rayner

Experimental Summaries - Plant Research

Trial PE17

Tordon 50 D & Lontrel L appear to be the only chemicals that will give effective reduction in the density of skeleton weed. However both these chemicals also removed all other broadleaved weeds present (capeweed, clover and flatweed), leaving the treated areas grass dominant.

Lincoln Weed Control In Cereals And Pasture., I. Hudson, R. Ramm

Experimental Summaries - Plant Research

Trial 87LG62 - Lincoln weed control in cereals.

Blanket treatment with Glyphosate controlled some ryegrass. Additional treatment with Glean killed nearly all the ryegrass and gave the best kill of Lincoln weed.

Trial 87LG63 - Control of weed in pasture.

Ally and Glean although giving control, would be considered too phytotoxic to use on legume pastures. Applications of 2,4-D amine at 1 L would give marginal safety on Subterranean clovers, but would cause significant damage to medics.

Water Use By Some Crops And Pastures In The Southern Agricultural Areas Of Western Australia, R A. Nulsen, I N. Baxter

Resource management technical reports

No abstract provided.

Effect Of Molybdenum On Medic Growth And Nitrogen Fixation, M M. Riley

Experimental Summaries - Plant Research

1.To examine the responses of medics to the application of molybdenum on an acidic, yellow-brown earth.

2.To compare the relative effectiveness of molybdenum seed-dressed to the conventional method of soil application.

3.To examine the effect of seed-dressing molybdenum on rhizobial nodulation.

87M68

Lime Application To Acid. Yellow Eastern Wheatbelt Sandplain Soils, W Porter, S Carr

Experimental Summaries - Plant Research

Testing soil acidicity in the wheatbelt.
80M30, 80M31, 86M11, 8814E4, 85M48

Intraspecific Variation In Barley To Boron Toxicity, M M. Riley

Experimental Summaries - Plant Research

To investigate the intraspecific variation in tolerance to boron toxicity in a range of barley varieties. 87SG1, 4/4864 and 87SG4.

Nitrogen Rates On The Main Copper Plots Of The Long Term Copper Residual Trial At Newdegate Research Station, R F. Brennan

Experimental Summaries - Plant Research

Trial 87N23

Location: Newdegate Research Station.

To determine the effects of rates of nitrogen on the copper status of plants.

Productivity Of Grazed Legume Pastures., Pasture Agronomy Branch

Experimental Summaries - Plant Research

86MT51, 86MT55, Mt Barker research station. Aim, treatment, detail, results.