Agronomy and Crop Sciences Commons^™

Foliar Diseases Of Wheat., R. Loughman

Experimental Summaries - Plant Research

Glasshouse screening for resistance to septoria nodorum and pyrenophora tritici repentis. Assessment of Interstate Variety Trial 'B' 1985. Glasshouse assessment of a novel selection technique. Duration of leaf wetness incubation as it affects glasshouse screening. Effect of leaf disease in multiple wheat cropping. M1, M2, E1, E2, E3. An inoculum for inducing s. Nodorum epidemics in the field.

Summary Of Rhizobium Experiments., J G. Howieson

Experimental Summaries - Plant Research

The screening of 33 isolates of R. meliloti collected in Sardinia in 1984, and isolated on a low pH medium, 84ME33. Assessment of the possibility of establishing an 'Index of Symbiotic Competence' for species of Medicago, 85M57. Assessment of the effectiveness of several strains of R. meliloti on M.littoralis, and their saprophytic competence in an acid soil, 84ME35. The screening of the pre-1984 collection of R.meliloti held at the W.A. Department of Agriculture for acid tolerance, 84M34. Assessment of the survival of the Serena WSM419 symbiosis on a range of soil types, 84ME32, 84WH24, 84N18. Assessment of the acid tolerance …

Pasture Manipulation And Root Diseases Of Cereals., W Macleod

Experimental Summaries - Plant Research

Rotation for wheat comparing pure clover ley with a pasture ley, 79E15. Pasture renovation techniques and crop production in a 1:2 rotation, 81E35. Pasture manipulation effects on take-all, 85E32

Root Diseases Of Cereals., G. C. Macnish

Experimental Summaries - Plant Research

Long term medic/wheat rotation and root diseases, 77ES8. Root disease build-up and rates of phosphorus on wheat, 78ES30. Root diseases following cleaning crops, 79E12. Take-all and ICI fungicide PP450, 85MT46. Rhizoctonia root rot and ryegrass control, 85E19. Rhizoctonia patch in lupins, 82E17. Effect of nitrogen sources on take-all, 82N34, 77E4, 77MT19.

Studies On The Effects Of Nutrition And Tillage Systems On Cereal Root Diseases., R. F. Brennan

Experimental Summaries - Plant Research

Micronutrients (Cu, Zn) and take-all, 83ES39, 83ES40. Nitrogen and Phosphorus rates and take-all, 83ES41, 83ES42, 83ES43. Split applications of Nitrogen and take-all, 84N1. Take-all and Manganese/Ammonium interaction, 84E1. Split applications of Nitrogen and take-all, 84E2. Cu residual on wheat and take-all, 67E9, 67E8. Take-all and Manganese/Ammonium interaction, 84LG2. Cultivation depths and timing effects on Rhizoctonia, 84E24. Chemical fallow and cultivation effects on Rhizoctonia, 85E33. Effects of cultivation depths and machines on Rhizoctonia and yield, 85E29.

Experimental Summaries Various Trials 1985, R Madin, F Schoonens, A Lindsay

Experimental Summaries - Plant Research

85WH55, 85M55. The effect of timing of Roundup and spray.

85NO87, Evaluation of herbicides for control of lupins in cereals.

85NO89, Control of self sown lupins in cereal crops.

85NA59, Grass controI in barley with Isoproturon, Cinch and Metribuzin.

85NO88, Control of wild oats with hoegrass and oil.

85NO86, Tolerance of wheat to hoegrass and oil.

85NO84, Tolerance of lupins to Fusilade plus oil.

85NA63, Ryegrass control in crop with hoegrass plus crop oil.

85A15, Rates of Fusilade for seed set control in grasses.

85A17, Pasture topping herbicides and oils (Silvergrass).

85WH64, Crop oil additives to seed set control herbicides. …

Residual Values Of Australian Rock Phosphates, Michael D A Bolland

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

For years superphosphate has been the cheapest, convenient and most effective way of supplying phosphorus to newly cleared soils in Western Australia's South-West that are acutely deficient in phosphorus. However its effectiveness as a phosphorus source falls markedly after application. Regular applications are needed to maintaine profitable pastures and crops on these soils.

After a big jump in supperphosphate prices in the mid 970s, researchers tested the use of Australian rock phosphates as potentially cheaper alternative phosphorus fertilisers to superphosphate. On the none-leaching sands, as this article shows, none of the rock phosphates was as effective for plant growth as …

The Fate Of Diazinon Applied To Thatched Turf, B. E. Branham, David J. Wehner

Office of the Dean (CAFES) Scholarship

Diazinon (0,0-diethyl-0-(2-isopropyl-6-methyl-4-primidinyl) phosphorothioate) is widely used to control turfgrass insect pests. Poor control of soil-inhabiting insects has been found where diazinon has been applied to thatched turfgrass stands. The purpose of this study was to evaluate the environmental fate of diazinon applied to turfgrass stands. A microecosystem was used to follow the fate of radiolabeled diazinon surface applied to Kentucky bluegrass (Poa pratensis L.) turfs, with or without a thatch layer, growing on Flanigan silt loam (fine, montmorillonitic, mesic Aquic Argiudoll) irrigated daily or every 4 days. Loss of diazinon by volatilization, leaching, and degradation accompanied by release of …

Keeping Ahead Of Powdery Mildew In Barley, T N. Khan, K. Young, P. A. Portmann

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

Powdery mildew is one of the world's most significant barley diseases. In Australia, and more particularly Western Australia, its importance has been under-rated, and only recently has interest in this disease emerged.

Powdery mildew was widespread throughout Western Australia's southern cereal growing areas in 1983. Only a prolonged dry period in August and early September of that year prevented possible large-scale crop losses. Similar outbreaks occurred in 1984.

While some barley varieties are resistant to infection, the use of fungicides, particularly seed dressings, can minimise further infection.

Intsormil 1985 Annual Report: Fighting Hunger With Research, John M. Yohe

INTSORMIL Impacts and Bulletins

This annual report covers the activities for program Year 6, the final year of operation under the initial grant document.

The CRSP's present a unique model for conducting agricultural research in collaboration with developing country agricultural research programs.

The INTSORMIL program also demonstrates these characteristics:

-- INTSORMIL has the dual goal of improving agriculture in the developing countries and in the United States.

- The seven participating U.S. institutions agree to contribute at least 25% of the cost of the CRSP from non-federal resources (in money or in kind), justified on the basis of benefits that can accrue to their …

Disease Rating System., M Sweetingham

Experimental Summaries - Plant Research

Lupin hypocotyl rot trials, 85BA29, 85BA30, 85BA31, 85N054. Lupin root rot trials, 85WH31, 85WH32, 85WH52. Lupin root disease survey - Moora District. Common Root Rot studies, 82M26.

Barley Foliage Diseases, Field Pea Diseases., T. N. Khan, K. Brain, M. Judges, K. J. Young, I. Pritchard, T. Sweeny, J. Hamblyn

Experimental Summaries - Plant Research

85BA22, 85MT31, 85N053, 85BA24, 85MT32, 85MT32, 85N052, 85N053, 85BA21, 85MT30, 85BA21, 85BA22, 85MT31, 85MT43, 85KA59, 85KA60, 85M29, 85MT44, 85E22, 85ES22, 85ES23, 85N051, 85BA25, 85WH27, 85C65, 85C69, 85C66, 85C67, 8SKA48, 8SMT34, 85KA47, 85MT33, 85M26, 85ME26, 85KA49, 85KA51.

A.General Notes and Highlights

BARLEY FOLIAGE DISEASES

B. Scald: Screening fungicides

c. Scald: Fungicidal control in Northam district

D. Scald: Effect of seeding rate

E. Scald & Mildew Effect of fungicides and rates

F. Scald & Mildew Seed borne infection and seed dressing

G. Scald & Mildew Effect of seed dressing and spraying

H. Scald & Mildew Effect of Erex and Baytan

I. Mildew: …

Camballin Irrigation Area : A Summary Of Cropping And Pasture Studies 1958-1970, Phongsak Yuhun

Resource management technical reports

The Camballin Irrigation Area was the first large scale rice growing area in Western Australia. It was hoped Camballin would develop into a highly productive irrigation area. The Department of Agriculture was directly involved in the area between 1958 and 1970. The report summarizes the research carried out during the period which paralleled the commercial operation. The trials were designed to solve the specific cropping problems encountered over the period.

Root And Foliar Diseases Of Wheat On Sandplain In The Geraldton Region., J. Wilson

Experimental Summaries - Plant Research

A project funded by Wheat Industry Research Council and Wheat Industry Research Committee of W.A. Interactions between stubble, rotation, ripping and nitrogen, ECRS, 85C53. The effect of type of cultivation implement, and time of cultivation, ECRS, 85C54. The effect of fumigation, ECRS, 85C91. Residual ripping responses from 1984, 84C15.

The Ecology Of Skeleton Weed In Western Australia, Afghan Thistle Ecology, Reproductive Biology Of Gorteria Personata., J. Dodd

Experimental Summaries - Plant Research

1. The ecology of skeleton weed (Chondrilla juncea L.) in Western Australia. Seed production and water use in the glasshouse, 84PE18. Seed production and water use by field-grown skeleton weed, 84BA17, 84BA18. Seedling root growth 85PE54 2. Afghan thistle (Solanum hoplpetalm) ecology Winter rosette survival 84N050. Regenerative ability of S. hoplopetalum, 85PE51. 3. Reproductive biology of Gorteria personata. Gorteria personata Floral biology Seed content of burrs

The Ecology Of Skeleton Weed (Chondrilla Juncea) In Western Australia, Demographic Aspects Of Wild Radish (Raphanus Raphanistrum) Populations In Lupin Crops And Identification Of Populations Of Mesquite (Prosopis Spp) From The West Pilbara Region., F. D. Panetta

Experimental Summaries - Plant Research

To determine what forms of skeleton weed are present in Western Australia and to map their respective distribution. To determine, on the basis of climatic characteristics, the suitability of various areas within the Western Australian wheatbelt for infestation by skeleton weed. To determine the amounts, viability and dormancy status of seeds produced by field-grown plants during summer and autumn months. To determine the effectiveness of conventional tillage practices in limiting establishment of skeleton weed seedlings. To determine the regularity with which seedling establishment occurs under field conditions and how the probability of establishment is affected by the time of germination. …

Soil Hardpans And Plant Growth, J W. Bowden, R. J. Jarvis

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

When farm vehicles travel over moist soils they can create hardpans which can marledly reduce crop and pasture yields.

Research at Wongan Hills Research Station has shown that plant growth and nutrient uptake were affected for at least eight years after the original workings caused the hardpan.

Some Recollections About The Early Days Of The Agronomy Club, David Mcgill

Department of Agronomy and Horticulture: Monthly Newsletters

Includes some recollections by David McGill about the early days of the Agronomy Club at the University of Nebraska-Lincoln.

Phosphorus Nutrition Of High Rainfall Pastures, Sulphur Nutrition Of Pastures And Sulphur - Low Rainfall., J S. Yeates, D. M. Deeley, M. F. Clarke, R. A. Deyl, G. T.B. Cockerton

Experimental Summaries - Plant Research

Phosphorus nutrition of high rainfall pastures - Peel Harvey Estuarine System Study and related phosphorus work. (1) Sources, rates, time of application of phosphorous on high rainfall pastures. 81AL5, 81AL6, 82AL10, 82HA32, 83HA26, 83HA27. (2) P sources and rates on sandy soils of the high rainfall areas. 84AL33, 84AL34, 84HA18, 84HA25. (3) Maintenance rate of P on pastures on sandy soils. 84AL32, 84HA17, 84HA24, 84 HA28. Sulphur nutrition of pastures A. Sulphur - high rainfall (2684 EX/4054EX) (1) Sources, rates, time of application of sulphur to pastures. 80AL4, 80AL4B (2) S sources and rates on pastures on sandy soils of …

The Tolerance Of Cereals To Herbicides., D. G. Bowran

Experimental Summaries - Plant Research

Herbicides affect not only the weeds present in a crop, but also the crop itself. In the absence of weeds, both positive and negative responses to herbicides have been reported in the literature. The negative responses are the most important, especially if yield is decreased below the economic threshold for herbicide use. Factors which are important in determining the level of crop response to a herbicide include the crop species and variety, the timing of the herbicide, the rate of herbicide and the environmental conditions under which the crop is growing.

Pasture Species Investigations., D. A. Nicolas

Experimental Summaries - Plant Research

Screening of alternatives to cv. Woogenellup clover. N. Bannister, 81NA37. Byford, 81PE6.

Screening 83MA7, Wilgarup, 83AL49, Hazelvale, 83BU22, Bramley 84V7 - Vasse Research Station.

Screening of early to midseason maturing lines of subterranean clover. 85N056, Beverley, 85M043, W. Calingari.

Screening of early maturing lines of subclover. Tarwonga, 84NA27. Wongan Hills Research Station, 84WH35. Dangin, 85N055. Wongan Hills Research Station, 85WH33.

Doublegee- Seed Dormancy And Longevity, Lupins- Pre And Post Emergence Grass Control, Radish Control, Peas- Metribuzin Bladex, Pre And Post Emergence Grass Control And Post Emergence Weed Control., D. J. Gilbey, R. Klemm

Experimental Summaries - Plant Research

Doublegee seed longevity x depth. Effect of burial on longevity of doublegee achenes, 76C9, 76KA8. Lupins, Peas, pre-emergence grass control cynch, 85BA42, 85WH53, 85BA43, 85BA44, 85BA45, 85WH60, 85N078, 85N078, 85KA61, 85JE18, 85ME54, 85KA86, 85JE66, 85KA88, 85 KA 92, 85KA85, 85ME52, 85ME53, 85KA87, Weed control in peas - metribuzin - 84ME41

Soil Science Research Report - 1985

Soil Science Research Reports

Wheat Experiments

Effect of Super Slurper and Phosphorus (P) on Corn and Wheat Yield ......................1

Selection of Time and Source of Nitrogen for Increased Efficiency of Applied Nitrogen ...................... 4

Effect of Method(s) of Applying P on Winter Wheat Grain Yield ...................... 8

Effect of Timing of Knifed in P on Winter Wheat Grain Yield ...................... 10

Winter Wheat Yield and Grain Quality as Influenced by Dynam (Lenaire product) ...................... 13

Corn Experiments

Effect of Spacing of Phosphorus Fertilizer Band on the Yield and Plant P Uptake of Corn ...................... 19

High Yield Corn-Soybean-Wheat Rotation Study ...................... 25

Fertilizer Management …

Soil Acidity In The Eastern Wheatbelt., W. Porter, S. Carr, P. Bourne

Experimental Summaries - Plant Research

Effect of profile acidity on nutrient and water use by wheat, 85M48. Effect of liming a wodjil soil prile on lupin production, 82ME10 and 82M5 . Lime banding in acid subsoils for wheat, 81M54. Liming topsoil. Rates of lime on wheat, 80M30. Residual value of lime (lupins 1985) 80M31. Survey Survey of extremely poor eastern wheatbelt yellow earth soils, 85ME92

Nitrogen And Phosphorus Compound Fertilisers, M G. Mason, J. W. Bowden

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

Nitrogen and phosphorus are two vitally important elements for plant growth which are deficient in most soils throughout Western Australia's agricultural areas.

Both nitrogen and phosphorus can also be applied in appropriate compound fertilisers which can be drilled with the seed, thus making their handling much easier. However, excessively high rates can depress plant emergence and may lower crop yields.

Interceptor Drains And Waterlogging Control, J W. Cox, T R. Negus

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

Department of Agriculture trials of seepage interceptor drains from 1972 to 1983 primarily assessed the effects of such drains on salt encroachment. Although these trials showed that the drains had little influence on salt storage within the topsoil, they did reduce waterlogging downslope.

To investigate this drainage effect further, the Department's Narrogin office surveyed 35 drains on 14 properties in the winter of 1981, followed by detailed crop measurements in December that year. Provided the drains were properly designed, surveyed and constructed, and well maintained, they could be expected to increase crop yields during a waterlogging year by about 1 …

Equilibrium Moisture Properties Of Corn Cobs, G. M. White, Thomas C. Bridges, Samuel G. Mcneill, Douglas G. Overhults

Biosystems and Agricultural Engineering Faculty Publications

Equilibrium moisture content-equilibrium relative humidity data for broken corn cobs have been determined for both desorption and adsorption conditions for three temperature levels and five moisture levels. The Modified Henderson and Chung equilibrium moisture equations have been fitted to these data by using non-linear regression procedures to estimate equation parameters. Both equations adequately represented the experimental data. A test of varietal differences indicated no significant difference in cob desorption ERH values for three selected corn varieties.

Boron Toxicity In Barley., M. M. Riley, J. W. Gartrell, R. F. Brennan, T. N. Kahn

Experimental Summaries - Plant Research

Field trials. Intraspecific variation in Barley to Boron toxicity, 85Me55, 85SG29, 85SG33. Glasshouse experiments. Sampling techniques for Boron toxicity in Barley, 85GL2. Cartwright rating system, leaf rating system.

Residual Value Of Legumes., J. Hamblin, R. Delane, G. Adam, A Bishop

Experimental Summaries - Plant Research

This report examines the residual value of lupins and several other species grown at ECRS in 1984 on the yield of wheat in 1985 (85 C 25). 85 C 46 examined the residual effect of several lupin species and varieties grown under different nutritional treatments in 1984 at two sites differing in rainfall on wheat yields in 1985. 85 C 47 examines the interaction between levels of applied potassium and deep cultivation (ripping) on the yield of wheat at a low K, dry site.

Report on 85 C 27, 85 C 46 and 85 C 47.

Pasture Research Programme For The Medium Rainfall Zone Of W.A. Species Selection And Management Related In Particular To The Ryegrass Toxicity Problem (Fund 492/0035)., C. K. Revell, C. W. Thorn

Experimental Summaries - Plant Research

Species evaluation, 85KA69, 85 KA 70, 85 KA 94, 85 KA 68. Small plot evaluation, 85 KA 89, 8S KA 90. Long term medic species evaluation, 82 KA 44, 82 KA 45. Drill run evaluation of M. polymorpha, 84 KA 38, 84 KA 39, 84 KA 40. Species characterization trials, 83 KA 66, 83 KA 67. Serradella evaluation, 85 KA 72, 85 KA 73, 85 KA 74, 85 KA 76