Physical Sciences and Mathematics Commons^™

Production From Heifers And First Calvers, G J. Sawyer

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

Heifers and first calvers present the major problems of the beef breeding herd. Reproduction rates, calf growth and survival of first calvers are generally much poorer than those of adult breeders.

Early successful reproductive performance is important in beef herds because of the high overhead cost of keeping breeding beef heifers or cows, Where possible, beef producers should aim to join heifers at 14 to 15 months of age. To achieve this goal, producers should set production targets for those animals. These targets will differ from farm to farm depending on when calves are turned off and the seasonal feed …

Sheep Production Systems On Mediterranean Annual Pastures., Department Of Agriculture, Western Australia.

Experimental Summaries - Plant Research

Trial 84V2.

Location: Vasse Research Station

Aims: To define seasonal pasture production curves for three rainfall zones in Western Australia. To determine animal productivity under different production systems in response to seasonal pasture production. To provide Western Australian data useful for validation of sheep simulation models. To provide data for different production systems to increase the scope of the simulation models.

Trial 73sg16, I Rowland, W E. Hawkins

Experimental Summaries - Plant Research

Trial 73SG16. Location - Lease block, Salmon Gums

The site was cropped in 1971 and 1972 after two years of volunteer pasture, mainly grasses and some wild legumes (Goldfields medic and wooly clover). In 1973 the trial started with pasture being sown to a mixture of Harbinger, Cyprus and Tornafield medics. The Harbinger quickly became the dominant species

Developing A Soil Test For Wodgil Soils In The Eastern Wheatbelt., S Carr

Experimental Summaries - Plant Research

Trial 87ME77

Location: Eastern Wheatbelt.

One of the better sites in terms of productivity. This site was sown at two times, initially 4 reps were sown but as it was very dry the remaining 8 reps were sown after additional rain. This split seeding did not seem to adversely affect the trial

Trial 87ME78

Location: Eastern Wheatbelt.

A poor site, towards the middle of the range of the ten sites sown. The very high basal N and P fertilizer applied

Population Dynamics Of Brome Grass In Relation To Control Systems, A H. Cheam, Stephen Lee, C. M. Ralph, P Nelson

Experimental Summaries - Plant Research

Trial 86C1

Location: East Chapman Research Station.

To identify the level of control of brome grass under various crop rotation systems so that farmers can be advised on the degree of infestation likely to be encountered when using a particular system.
To design the best control system to reduce quickly the anticipated large seed population of brome grass in the soil.

Medic Cultivar Resistance To Phoma Blackstem Disease., M. J. Barbetti

Experimental Summaries - Plant Research

Location: Katanning, South Perth, Denmark, Kerridale, Woogenelllup, Mount Barker Research Station, Seaton Park, Esperance, Daliak, Dinninup, Green Range, Yarloop, Jerramungup and Corrigin.

Trial 87KA11

To screen medic lines for resistance to Phoma blackstem disease (caused by the fungus Phoma medicaginis)

Trial 87GL8 : Screening medics for Phoma blackstem resistance.

To develop a reliable glasshouse screening technique for assessing levels of resistance to Phoma blackstem disease in Medicago line.s. To compare these glasshouse obtained results with disease resistance scores for the same Medicago lines sown in the field at Katanning.

Trial 87KA10 : Fungicidal control of Phoma blackstem disease of medics. …

Cereal Cyst Nematode And Time And Method Of Sowing Wheat, J M. Stanton, M Sartori

Experimental Summaries - Plant Research

87NO13, 87NO15, 87JE6, 87NA93, 87NA93, 87NA97, 86KA82.

Assessment Of 2nd Generation Acid Tolerant Strains Of R. Meliloti, J G. Howieson, S Scarfe, R Forest

Experimental Summaries - Plant Research

86M56, 86GE29, 87M83, 87M13, 87H12, 87M15, 86N32.

Foliar Wheat Diseases And Cereal Smuts And Control Of Pleiochaeta Setosa In Lupins., R Loughman, G Thomas, G Cusack, M Sweetingham, S Porritt, A Pelham, V Chisholm

Experimental Summaries - Plant Research

Disease complexes in field screening trials. Glasshouse screening for resistance. Reinfection of barley loose smut. Barley loose smut – varietal susceptibility. Seed dressings for barley loose smut. Seed dressings for barley leaf stripe. Seed dressings for molybdenum application and fungicidal control of soil-borne flag smut. Chemical control of Pleiochaeta setosa in lupins. Effect of cereal stubble and seed dressing fungicide on brown leaf spot (P. setosa) in lupins. Stubble retention and Rovral for control of P. setosa in lupins. Fungicide sprays for control of P. setosa in lupins. Data summary for chemical trials.

Broadacre Pest Control After Ddt, P J. Michael

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

DDT may no longer be applied to broadacre crops grown in Western Australia. It is being replaced by other more effective chemicals and with new methods of pest control. DDT was the most effective chemical for the control of several major broadacre pests in this State and farmers may well wonder why this change was necessary and how they will manage without DDT.

Experiments On Grain Yield In A Range Of Old And Modern Wheat Varieties., K. H.M. Siddique, D. Tennant, R. K. Belford, M. W. Perry, L. Mclaughlin, A. R. Thompson

Experimental Summaries - Plant Research

Growth, yield, water use and water use efficiency of old and modern wheat varieties in a mediterranean type environment, 87M17 and 87WH14. Ear and stem dry matter at anthesis and grain yield in a range of wheat varieties, 87M18.

The Role Of Barley In Future Rotational Systems In Drier Wheatbelt Areas Of Western Australia., P. Simpson

Experimental Summaries - Plant Research

Comparison of barley and wheat yields over four soil types and yield component analysis at Nangeenan NW of Merredin, 86ME88, 86ME89, 86ME90 and 86ME91. Comparison of barley and wheat yields over four soil types at Bodallin, east of Merredin, 86ME92, 86ME93, 86ME94 and 86ME95. Comparison of barley and wheat yields over two ‘levels’ of soil salinity - EC, 87ME63 and 87ME64. Comparison of barley and wheat yields over 2 soils of differing textural type – ‘heavy’ and ‘light’, 87ME65 and 87ME66. Effect of time of sowing on barley and wheat yields, 87ME67.

Productivity Of Grazed Legume Pastures., Pasture Agronomy Branch

Experimental Summaries - Plant Research

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

The Effect Of Sodium Chloride On Boron Toxicity In Barley., M M. Riley

Experimental Summaries - Plant Research

To examine the effects of salinity on the uptake of boron and the growth of barley.
87GL3a/4864

Trial 68e5, I Rowland., W E. Hawkins

Experimental Summaries - Plant Research

Trial 68E5. Location paddock N1A on Esperance Downs Research Station (Gibson). Long term rotation trials.

Cleared in 1951 and sown to clover, cropped in 1961 and 1962 then Woogenellup sub clover and Brome grass were sown in 1963, topdressed until the start of the trial in 1968. Lupins were sown in trial in 1974. Esperance sub clover has been established on all plots.

Phosphorus Levels And Disease On Lupins, J W. Bowden

Experimental Summaries - Plant Research

Trial 87LG39 (81LG29) 87ME62

Location: Pingaring.

It has been suggested that high levels of phosphorus application to lupins can reduce the impact of leaf and root diseases. Two old rotation trials provided a range of disease burdens, across which phosphate rates on lupins were applied. Disease scores, vegetative yields, phosphorus concentration and seed yields were measured.

(Details in Mark Sweetingham's report)

To Effects Of Rates Of Phosphorus And Nitrogen On The Copper And Zinc Status Of Wheat Plants And Grain Production., R F. Brennan

Experimental Summaries - Plant Research

To examine the possibility of rates of nitrogen and phosphorus inducing copper and zinc deficiency in wheat.
87E30

Winter Waterlogging Effects On Crops And Pasture Production., D. J. Mcfarlane

Experimental Summaries - Plant Research

Trial 87NA76

Location: Dryandra, Rosendale Central, Tutanning, Yornaning South, Yornaning West

To quantify the physical extent and economic significance of winter waterlogging on crop and pasture production in the Upper Great Southern Region of Western Australia.

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.

High Input Barley Production Systems In The High Rainfall Zone., G. J. Parlevliet

Experimental Summaries - Plant Research

Barley systems in the high rainfall zone effect of nitrogen fungicides and seeding rate on barley yield, 87BR2.

Trial 86c63 Rotation, Deep Ripping And Water Use And Trial 87ge97 Cereal Management Trials, J. Hamblin, R. Delane, Glenn Adam

Experimental Summaries - Plant Research

To examine the value of a package approach to growing cereals in the northern agricultural region. Treatments included planting date , species (wheat v barley) and variety (differing in maturity), as well as deep ripping and fungicide spray.
87GE97

To examine the effect of different rotational histories, particularly residual water, on following crops. Barley, wheat, lupins, medic.
86C63

Plot Size Trial (Wheat), G. J. Lewis

Experimental Summaries - Plant Research

To determine if plot size (length or width) x cultivar or seeding machine x cultivar interactions exist within a set of wheat cultivars. 87BA20, 87N20, 87WH36, To examine the relationship between the relative yield of wheat cultivars grown in experiments and in similarly treated bulk areas at the same site. 87M80.

Nitrogenous Fertilizers For Cereals Results From 1987 Trials, M G. Mason

Experimental Summaries - Plant Research

Effect of stubble treatment on nitrogen fertilizer requirement. 78C3

Effect of Stubble Treatment on Nitrogen Fertilizer Requirement 78WH3

Effect of Stubble Treatment on Nitrogen Fertilizer Requirement 78M2

Nitrogen Rate on Continuous Wheat with Varying Levels of Retained Stubble *84WH46

Rates of Nitrogen on Continuous Wheat on Heavier Land 87C1

Rates of Nitrogen on Wheat on Heavy Land *87M04

Nitrification of Sources of Nitrogen on Slightly Acid to Neutral Soil 87BA3

Nitrification of Sources of Nitrogen on Medium Soil 87A1

Nitrification of Sources of Nitrogen on Very Acid Soils 87M3

Nitrification of Sources of Nitrogen on Moderately Acid Soil 87WH1

Rate …

The Economics Of Saltland Agronomy, John S. Salerian, Clive Malcolm, Eddie Pol

Resource management technical reports

No abstract provided.

Residual Value Of Molybdenum On An Acid Soil, M M. Riley

Experimental Summaries - Plant Research

To examine the decline in effectiveness of molybdenum applied to the soil for the growth of wheat at this site. 82N07/1213

Evaluation Of Existing Diagnostic Procedures For The Recommendation Of Trace Element Fertilisers, R F. Brennan

Experimental Summaries - Plant Research

Trial 87N23

Location: Newdegate Research Station.

To compare the accuracy and reliability of a range of tissue and soil tests being variously promoted for use to farmers for the diagnosis and prognosis of zinc and copper deficiencies in wheat crops on Western Australian farms.

N X P X Irrigation On Wheat - South Carabin, J W. Bowden

Experimental Summaries - Plant Research

Trial 87M7.

Nx P x irrigation on wheat

Although no major effects of fertilizer on average seed size were noted, it was found that phosphate level had an effect on the distribution of seed sizes.

Location: South Carrabin.

Trial 87WH51

1987 rainfall.

Location: Wongan Hills Research Station.

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.

The Effect Of Rates Of Nitrogen On The Copper And Zinc Concentration And Grain Yield Of Wheat Plants, R F. Brennan

Experimental Summaries - Plant Research

To examine the possibility of rates of nitrogen inducing copper and zinc deficiency in wheat.
87JE21

Tillage Investigations., R. J. Jarvis, L. G. Butcher, L. D.J. Smith

Experimental Summaries - Plant Research

77A16, red/brown sandy loam - York gum. 77WH17, yellow clayey-sand (Wongan loamy sand). 77M13, red sandy clay loam (Salmon Gum, Gimlet). 77Mt15, gravelly loamy sand/sandy loam - forest soil. 77A43 brown loamy sand/sandy loam - jam country. 77WH88, grey loamy sand over gravel at 50 cm - Elphin soil series – Mallee. 77M56, red sandy clay loam - salmon gum, Gimlet. 82M35, Loamy sand/sandy loam – Mallee. 77E52, fine white sand over gravel at 40 cm. 85SG28, grey-brown calcareous Earth - Kumarl – SGRS. 84M064, heavy land management systems - medium rainfall area. 84M063, heavy land management systems - ne …