Agronomy and Crop Sciences Commons^™

General Phosphorus Trials, R J. Lunt, J. W. Bowden

Experimental Summaries - Plant Research

The trial programme of past years was considerably reduced in size because of the absence of J.W. Bowden (Research Officer). Further, extensive drought conditions in the W.A. agricultural areas wiped out several trials.

INDEX Super x stocking rate trial 66M30. Maintenance P x S trials 65Al, 65C5, 65N5, 69WH15. Residual Value of Phosphorus 75LG26, 77NA4, 78BA7, 79N05, 79JE8 & 9.

Times and Methods of Application 80M7, 8OM6, 80WH9, 80MO7.

1. Doublegee Seed Dormancy. 2. Lupins - Weed Control. 3. Lupins - Minimum Tillage Weed Control. 4. Doublegee Control In Pasture. 5. Crabgrass Control In Seedling In Lucerne. 6. Crabgrass Control In Vines., D J. Gilbey

Experimental Summaries - Plant Research

Doublegee seed longevity x cultivation - 75WH65. Doublegee seed longevity x depth - 76C9, 76KA8, 75WH66. Lupin variety tolerance to herbicides - 80C28-33, 80GE45-50, 80MO24-29, 80TS33-38. Tolerance of yandee lupins to herbicides - 80A38. Post emergence weed control in lupins - 80M034. Sprayseed - simazine combinations for minimum tillage lupins – 80MO21, 80TS29, 80GE40. Doublegee control in pasture – 80MO33, 80NO36. Crabgrass control in seedling lucerne - 80KE7. Crabgrass control in vines - 80SR1.

Evaluation Of Late Maturing Clover Cultivars. Woogenellup Alternative Clovers. Selection For Bluegreen Aphid Resistance. Root Rot Resistance., D. J. Gillespie

Experimental Summaries - Plant Research

Evaluation of Late Maturing Clover Cultivars. Bacchus Marsh, Clare, Cyprus, Daliak, Denmark Dinninup, Dwalganup, Esperance, Geraldton, Harbinger, Karridale, Larisa, Meteora, Mt. Barker, Nangeela, Northam, Northcliffe, Nungarin, Pitman serradella, Plantagenet, Seaton Park, Tallarook, Tornfield, Trikkala, Yarloop, Woogenellup,

1. Evaluation of late maturing clover cultivars. Three trials established in 1977 and due to terminate in 1979 were continued into 1980 to obtain further data on the performance of the late yanninicum Meteora {39327YB). A full report on the performance of this variety in these trials was prepared for the Herbage Plant Liaison Committee and is reproduced below. Table 1 - Residual Hard …

Potassium, W. J. Cox

Experimental Summaries - Plant Research

80BR1 - Rates of Potassium on Pasture. 80BR2 - Rates of Potassium on Pasture. 80TS4 - Rates of Potassium on Wheat. 80BR5 - Rates of Potassium on Pasture.

Pasture Manipulation - Grass Control The Year Prior To Cropping, C W. Thorn

Experimental Summaries - Plant Research

Pasture manipulation - grass control the year prior to cropping. Aim 1. To measure the effects of various grass control treatments on pasture production and composition in the spraying year. 2. To measure the effects of grass control on wheat. Trial – 80MO41, 80MO40, 80AB2.

Legume Diseases, P Mcr Wood

Experimental Summaries - Plant Research

Lupin root disorder. Resistance to lupins to Phomopsis leptostromiformis (Fungal ratings by P. McR. Wood and F.M. O'Donnell, data compiled by J. Hamblin, Plant Production Division) Phomopsis levels on any particular genotype are influenced by environment. Therefore material selected for Phomopsis resistance is done so on its being better than average over all sites. Data for the Plant Breeders' S2-l trial at Avondale (ARS), Badgingarra (BRS), Chapman (CRS), Esperance (ERS) and Mt. Barker (MTRS) are shown in Table 3.

Influence Of Planting System On Surface Soil, Physical Conditions And Soil Water Relations, D Tennant

Experimental Summaries - Plant Research

Influence of planting system on surface soil, physical conditions and soil water relations. The availability of soil water for crop use can this way be influenced by planting system. Various aspects of soil water relations were examined in varying detail at three sites - Wongan Hills, Avondale and Merredin, over the 1979 and 1980 growing seasons. Some of this soil water data are presented here. The Department of Agriculture initiated a programme in 1977 to investigate and compare crop performance under several planting systems. This project was part of this programme and had as its objectives: 1. Measurement of soil …

Weed Control On Roaded Catchments, P A. Rutherford

Experimental Summaries - Plant Research

Weed control on roaded catchments - 80NA46, 80NA45. Control of "Loop-grass" - Westralian Sands Pty Ltd Capel. Alexander Morrison National Park - Coorow. 80NA50 - Chemical firebreak evaluation - long term - 80A46.

Scald, Blotch And Powdery Mildew General Comments And Highlights, T. N. Khan

Experimental Summaries - Plant Research

Locations - Avondale, Badgingarra, Mount Barker I. General Comments and Highlights. II. SCALD: Crop Loss Assessment - 80BA25, 80MT24. III. SCALD: Field Inoculation - 80A28. 80BA26. IV. SCALD: Genotype Reaction in Single Plants and Hill Plots - 80MT26. V. SCALD: Epidemic in Segregating Populations - 80A29, , 80MT25. VI. NET BLOTCH: Yield Loss Assessment - (Net Type) - 80A30, 80BA30. VII. NET BLOTCH: Field Inoculation (Net Type) - 80A31, 80BA31. VIII. 'SPOT TYPE' NET BLOTCH: Yield Losses - 80C24. IX. POWDERY MILDEW: Yield Losses - 80AL33.

Nitrogenous Fertilisers For Cereals, Rape And Linseed. Results From 1980 Trials., M. G. Mason

Experimental Summaries - Plant Research

Effect of stubble treatment on nitrogen fertiliser requirement – 78C3, 78M2, 78WH3. Rate of N on wheat - conventional vs. Direct drilling – 80A1, 80Cl, 80N1. Rate and time of application of nitrogen on wheat - CONVENTIONAL VS. DIRECT DRILLING – 80E1. Rate and time of application of nitrogen on rape - conventional vs. Direct drill – 80MT1. Rates of nitrogen on wheat on heavy land – 80GE1, 80GE2, 80MO2. Rates of nitrogen on wheat - soil test – 80BR3, 80ES14. 80KA2, 80NO2, 80TS1. Rates of nitrogen on wheat – 80LG26, 80ME2. Rates and sources of N and P for …

Long Term Roatation Trials. Lupins: Wheat Rotation. Continuous Cropping With Nitrogenous Fertiliser., I Rowland

Experimental Summaries - Plant Research

Long term rotation trials - 66M29, 67C13, 67N4, 68E5, 68SG5, 73SG16. Lupins: whet rotation - 79GE36, 79GE37. Continuous cropping with nitrogenous fertiliser - 80NA6.

Wheat Potential Yield Trials., M. W. Perry

Experimental Summaries - Plant Research

Contents: 1. Wheat Potential Yield Trials. 80BA4 - Cooperative project with R.N. Weir. 80KA7, 8OWH8 D. Tennant and A.G.P. Brown. Detailed summary issued as a separate report. 2. Yield Analysis of Historically Important Wheats 80WH6, 80M4*, 80C2, 80N4* 80WH7, 80M5*, 80A3, 80SG20. 3. Cereal Seeding Rates for the Eastern Wheatbelt. 80ME5*, 80M6*. 4. Intensive Wheat Production Trials (Seeding Rates x Cycocel x Nitrogen xSeptoria Control) 80M038, 80N042, 80MT4, 80N041, 80KA34. 5. Alternative Crop Trials - High Rainfall 80MA7, 80MA8. 6. Regenerating sandplain Lupin Rotation Trials 79GE38/SOGE12 , 79GE42/80GE13. 7. Miscellaneous Trials i) Early Seeding of Late Maturing Varieties - 80MT5. …

Trace Element Nutrition, J. W. Gartrell, R. F. Brennan

Experimental Summaries - Plant Research

Field trials. 1. Long term copper residual page 1. 2. Effect of granule size and cultivations on copper availability – 79N23 page 2. 3. Copper, zinc residual for sub-clover – 78MO26 page 5. 4. Copper, zinc residual for sub-clover on peaty sand – 75AL24 page 6. 5. Effect of copper fertilizer on wheat yield – 80NO27 page 7. 6. Ammonium sulphate/molybdenum on wheat – 80NO28 page 8. 7. Mo, lime, mg on sub-clover – 80NO29 page 9. 8. Zinc residual with high analysis N.P. Fertilizer for wheat – 80NO31 page 10. 9. Zinc, sulphur, copper residual with high analysis N.P. …

Soil Microfungal Relationships Associated With Grassland Reestablishment, Dennis C. Clarke

Electronic Theses and Dissertations

The mixed prairie association has a characteristic soil microfungal flora associated with the cover vegetation (Clarke and Christensen, 1980). Rhizosphere organisms are correlated with the cover vegetation (Christensen, 1969) and a change in the cover vegetation should be accompanied by a change in the organisms in the rhizosphere. Some disturbances that may lead to change in the cover vegetation are tillage, grazing, interseeding, mowing and fires. Christensen's (1980) review of species diversity and dominance in fungal communities indicates that in general these disturbances tend to reduce soil microfungal diversity while increasing the frequency of the remaining species. Other studies have …

The Influence Of Atrazine (2-Chloro-4-(Ethylamino)-6-(Isopropylamino-S-Triazine) On The Severity Of Gibberella Zeae-Induced Seedling Blight Of Corn, Louis A. Heaton

Masters Theses

Three corn inbreds were grown in artificially inoculated, steamed greenhouse soil amended with atrazine (2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine) to determine the herbicide's effect on the severity of Gibberella zeae (Schwabe) Petch-induced seedling blight. Corn inbreds used were Gibberella-resistant (FR632), Gibberella-intermediate (FRMo17), and Gibberella-susceptible (C123^HT). Soils were amended with atrazine at rates of 2, 15, and 30 ppm.

Susceptible inbred seedlings showed no response to the herbicide with symptims equally severe in controls and all 3 concentrations of atrazine. Intermediate inbred seedlings grown in all atrazine amended soils showed significantly more severe disease symptoms than controls. Soil amended with …

Soil Science Research Report - 1980

Soil Science Research Reports

Corn Experiments

Improving Nitrogen Fertilizer Recommendations on Corn .......... Section 1

Anhydrous Ammonia and N-Serve for Irrigated Corn .......... Section 2

Nitrogen Management for Irrigated Corn and Grain Sorghum .......... Section 3

Effect of Different Methods of P Application on Irrigated Corn Production ..... Section 4

Improving the Efficiency of Fertilizer N Use by Irrigated Corn .......... Section 5

Influence of Rates of K and MG for Corn Production on Irrigated Sandy Soils .......... Section 6

Application of Sulfur for Irrigated Corn on Sandy Soils .......... Section 7

Effect of Different Planting Systems and Row Applied P on Corn Yields …

The Influence Of Harvesting Strategies And Economic Constraints On The Feasibility Of Farm Grain Drying And Storage Facilities, Otto J. Loewer Jr., Thomas C. Bridges, G. M. White, Douglas G. Overhults

Biosystems and Agricultural Engineering Faculty Publications

The economic return to on-the-farm grain drying and storage facilities is influenced by many factors including harvesting strategies, facility management, market conditions, energy considerations, and facility design. This study evaluates the influence of these factors on expected net return.

Economic Comparison Of Alternative Burley Tobacco Harvesting Practices By Computer, Thomas C. Bridges, Larry G. Wells, George A. Duncan, John N. Walker

Biosystems and Agricultural Engineering Faculty Publications

The computer model CATCH (Computer Analysis of Tobacco Cutting and Housing) was developed to provide the individual tobacco producer with management information concerning alternative methods of harvesting burley tobacco. CATCH utilizes specific producer in-puts to analyze 24 alternative burley production systems and presents up to four economic rankings containing costs, equipment and labor for each system. The economic rankings aid the producer in decision making with regard to his own operation.

Low Rainfall Pasture Programme, M Ewing

Experimental Summaries - Plant Research

The Headquarters of dry land pasture project was transferred to Merredin from Perth for the 1980 season. The aim of the programme is to ascertain the place that legume pasture might play in the dryland farming system. It is aimed to test and introduce improved varieties of pasture species and develop management systems which will improve pasture production and persistence in the low rainfall areas of the wheatbelt. 1. Variety testing.

2. Establishment techniques; a. Rates of under sowing. b. Rates of N and rates of under sowing. c. Depth of sowing with under sowing. d. Herbicides on cereals under …

Blackleg Disease Of Rapeseed, Loose Smut Of Barley, Foiliage Diseases Of Sub-Clover., M J. Barbetti

Experimental Summaries - Plant Research

Blackleg disease of rapeseed. Control of seedling infection – 80MT36. Loose smut of barley. Fungicidal control of loose smut in barley – 80MT35, 80NA37. Foliage diseases of sub-clover. Role of trash in sub-clover foliage diseases – 80KA30.

A. Inoculum Of The Take-All Fungus And Prediction Of Take-All. B. Hypovirulent Strains And Control Of Take-All., K Sivasithamparam

Experimental Summaries - Plant Research

Contents: A. Inoculum of the take-all fungus and the prediction of take-all. 1. Time of sampling 1a Newdegate 1b Badgingarra 1c Kulin 2. Inoculum from grass and wheat residues - Esperance. 3. Hypovirulent strains and control of take-all 3a Esperance, 3b Newdegate. Results from the preliminary studies which commenced in 1978 have shown several interesting trends in the behaviour of the field inoculum of the take-all fungus (TAF). "Disease severity Assay" has emerged as a potentially useful assay of field soil. This assay reflects the level of disease severity (on a 0-5 scale) caused by the resident inoculum of the …

Weed Control In Pastures And Cereals, J R. Peirce

Experimental Summaries - Plant Research

80N037 - Post sowing - pre emergence applications of chemicals for soursob control in cereals. Property J. Miller - Beverley. Gamenya wheat - sown 25/6/80. 80N039 - Chemical control of soursob in cereals using herbicide combinations. Property J. Miller, Beverley. Gamenya wheat, sown 25/6/80. 80N038 - Post-emergent chemical control of Soursob in cereal crops. Property J. Miller - Beverley. Crop Gamenya wheat, sown 25/6/80. 80N038 - Post emergent chemical control of soursob in cereal crops. Property N. Hansen - Northam. Crop Warimba wheat sown on 4/6/80. 80N039 - Property Chemical control of soursob in cereals using herbicide combinations. N. Hansen …

Pasture Species Investigations: Clover Cultivar Evaluation High Rainfall Area 1980, D A. Nicholas

Experimental Summaries - Plant Research

Clover Cultivar Trials - 78 MN5 - Manjimup Research Station. 78BU15 - N. McDonald, Jindong. 78BR16 - K. Stacey, Darradup. 78DE1 - S. Ravenhill, Tingledale. 79MA12 - H.H. Jackson, Pemberton. 80AL63, 78BU15, 78BR16, 78DE1, 78MN5, 79BY6, 79ES35, 79ES36, 79MA13, 79MT48, 79W5, 80AL59, 80B4, 80B5, 80BR18, 80BU7, 80BR18, 80BU7, 80ES64, 80HA3, 80HA4 Alternatives to cv Woogenellup. Progress report January, 1981, D.A. Nicholas. Of five trials continued from 1979 only two gave worthwhile results in 1980. Management of the other three sites (two at Esperance, one at Wokalup) gave some problems. At Palgarup (79MA13) and Mt. Barker (79MT48) regeneration of the crossbreds …

Investigations Of Ryegrass Toxicity, B A. Stynes

Experimental Summaries - Plant Research

Shedding of galls in pasture - 79KA11. Development of toxicity in the field - 80KA25, 80MO39, 80NA34. Effect of herbicide on gall development - 80KA26.

Minimum Tillage Investigations. Direct Drilling Trials - Moora Office. Evaluation Of Stubble Management Techniques. Rye Grass Control Under Direct Drilling. Miscellaneous Chemical Trials. Deep Ripping., R. J. Jarvis

Experimental Summaries - Plant Research

Minimum Tillage Investigations - 77A16. Rotational site - 77A43, 77E52, 77MT51, 77WH88. Continuous Cropping Site - 78BA42, 77E18, 77MT15, 77WH17. Heavy land continuous cropping site - 77Ml3. Light land continuous cropping site - 78M25. Direct Drilling Trials - Moora Office. Round Hill, Miling, Dalwallinu, East Wubin. Evaluation of Stubble Management Techniques. Stubble management – WHRS light land - 79M7, 79WH6. Rye grass Control Under Direct Drilling. Ryegrass herbicides - dd/conventional - 80N22. Tillage systems x ryegrass control - 80LG23. Trifluralln/direct drilling - 80LG24. Trifluralin/direct drilling - 80LG25. Miscellaneous Chemical Trials. Hoegrass compatibility trial 80LG31. Early broadleaf weed control in wheat …

Dpx 4189 And Other Herbicides For Weed Control In Wheat, G. A. Pearce

Experimental Summaries - Plant Research

DPX 4189 and other herbicides for weed control in wheat: Object: To compare DPX 4189 with other herbicide treatments for the control of Broadleaved weeds and ryegrass in a wheat crop. Location Toodyay. Location: Moora District office trial . T Reynolds, Miling – 80MO43 – Gamenya wheat sown 29/5/80. Hoegrass plus Brominil trials 1980. To test the efficiency of Brominil M mixed with Hoegrass for weed. Sites: Toodyay and Dowerin.E. & M. Browne and Sons, East Wannamal – 80MO47B - Darkan wheat sown 16/6/80. O. & E. Coyle, Pithara - 80MO50 – Gamenya Wheat sown 29/5/80. Tank mixes with hoegrass. …

Phosphorus Sources Trials, M J. Baker, J. W. Bowden

Experimental Summaries - Plant Research

Pasture trials. 75N07B - New land pasture at Chittering – gravel. 76MT10 - New land pasture at Mt. Barker – gravel. 77MT1 - New land pasture at Mt. Barker – gravel. Methods and particle size.

Cropping trials 77MT2 - Old land at Mt. Barker - gravel – oats. 76WH10 - Young land at Wongan Hills - WLS – wheat. 76WH14 - Very old land at Wongan Hills - WLS – wheat. 77WH2 - Very old land at Wongan Hills - WLS – wheat. 77M016 - New land at New Norcia - gravel – wheat. 80BA6 - New land at Badgingarra …

Poultry Manure Fertilization Of Sudangrass, R.L. Nichols, D.W. Allinson

Storrs Agricultural Experiment Station

No abstract provided.

Cadmium, Copper, Lead, Nickel, And Zinc Concentrations In Alfalfa In Connecticut, R.W. Taylor, D.W. Allinson

Storrs Agricultural Experiment Station

No abstract provided.

Effects Of No-Tillage Fallow As Compared To Conventional Tillage In A Wheat-Fallow System, C. R. Fenster, G. A. Peterson

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The benefits of reducing tillage by use of herbicides for weed control emphasizes why research was started to study a fallow system where all tillage was replaced by herbicides. Wheat planting was then the only soil disturbing operation. Objectives of the research were to compare the effects of no-tillage (chemical), stubble-mulch and plow (bare fallow) systems of fallow on: 1. Grain yield. 2. Grain protein. 3. Residue retention. 4. Soil nitrate-nitrogen accumulation. 5. Soil water accumulations during fallow. Data presented are in the form of a progress report. These experiments will continue.