Plant Sciences Commons^™

Tva Fluid Fertilizers Chapter Four - Chemical Properties, A W. Frazier

Robert Mikkelsen

No abstract provided.

Tva Fluid Fertilizers Chapter Five - Production, Handling, And Use Of Anydrous Ammonia And Status, G. M. Blouin, H. L. Kimborough, W. J. Sharratt

Robert Mikkelsen

No abstract provided.

The Growth And Seed Yield Of Harbinger Medic Sown Under Lupins., J Hamblin

Experimental Summaries - Plant Research

Trials : 83C23, 83C24, 83C25, 83C26, 83C27, 83C28, 83C29, 83C29, 83C30 and 83C31

The growth and seed yield of harbinger medic sown under lupins.

Nitrogen flows from several species and varieties of legume.

The nitrogen response of wheat in the long term rotation trial at the East Chapman research station.

The growth and yield of uniculm and normal barley.

Seedling N from lupins for a succeeding wheat crop.

The effect of seeding rate, planting date and variety on the growth and yield of lupins.

Pea agronomy.

The effect of maturity, density and nitrogen supply on the growth of cereals on …

Horticultural Crops - Grapevines, Capsicum, Fruit Trees, Lucerne., D J. Gilbey, R. Klemm

Experimental Summaries - Plant Research

Crabgrass control in vines - 82SR4, 83SR4 Weed control in capsicums - 83MD10, 84MD6. Herbicide tolerance - fruit - 82MN36. Crabgrass control in lucerne - 82PE60, 83PE6, 84PE4.

Horticultural Crops; Grapevines, Capsicum, Fruit Trees And Lucerne, D J. Gilbey, R Klemm

Experimental Summaries - Plant Research

Crabgrass control in vines – 82SR4, 83SR4. Weed control in capsicums - 83MD10, 84MD6. Herbicide tolerance – fruit – 82MN36. Crabgrass control in lucerne - 82PE60, 83PE6, 84PE4.

Crop Variety Testing And Recommendations, H M. Fisher

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

From 1984 onwards, the Department of Agriculture's crop variety recommendations for Western Australia will be set out in a new format directly related to the 18 variety testing areas into which the South-West has been divided. These divisions should enable growers to more readily identify the recommendations which apply to their area. In addition, yield data on the varieties are provided for each area.

The recommendations are the culmination of a lenghty process of breeding, selection and testing of crop varieties. This article gives the background to the tests and how the results are used as the basis for the …

Modifying Fertiliser Practices, J S. Yeates, D. M. Deeley, M. F. Clarke, D. Allen

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

If modified fertiliser practices are adopted phosphorus losses from the Peel-Harvey catchment can be reduced. Farmers can save money on fertiliser applications and the need for more expensive catchment management measures to reduce algal pollution of the estuary will be avoided.

Research data available so far indicate that, with farmer co-operation and the use of the new slow release fertiliser New Coastal Superphosphate, long-term phosphorus application rates can be reduced by 30-40 per cent - and possibly even halved - without lowering agricultural production. This will also reduce phosphorus loss to drainage water.

Although much of the research since 1982 …

Soil Acidity On High Rainfall Pastures, J S. Yeates, D. A. Mcghie, I. R. Wilson

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

Most soils of the high rainfall area of south-western Western Australia are naturally acis.

The most acid group of soils, the peaty sands. have been routinely limed before subterranean clover pastures were established since research in the 1950s showed that poor Rhizobium nodulation could be overcome with the application of about 2 tonnes per hectare of coastal limesand.

Pasture Species Evaluation In The Medium Rainfall Zone, C W. Thorn, C K. Revell, S Davies, I Rose

Experimental Summaries - Plant Research

The effect of mechanical defoliation on the production of legume species in the Katanning region - 84KA26. The effect of grazing on the seed production of legume species - 84KA27. The effect of gypsum and establishment techniques on Circle Valley medic - 84KA29. The effect of gypsum, tillage and nitrogen on cereal yields in a continous crop system - 84KA28. The effect of gypsum on cereal crop yield - Katanning, E. Garlick Kwobrup, D. Webse. Pasture probe evaluation. Aim: To determine the suitability of the Vickery single probe earth plate capacitance meter for determining pasture production.

Sulphur Nutrition Of Pastures. Potassium Nutrition Of High Rainfall Pastures On Deep Sands, J. S. Yeates, M. F. Clarke

Experimental Summaries - Plant Research

A. Sulphur - High Rainfall. 1. Sources, rates, time of application of sulphur to pastures - 80AL1, 80AL4, 80AL48. 2. Sulphur nutrition of pastures - 83PE36. 3. S sources and rates on sandy soils of the high rainfall areas - 84HA20, 84HA27. 4. Maintenance of S on pastures on sandy soils - 84AL35, 84HA19, B4HA26. B. Sulphur - Low Rainfall. 1. Sulphur on pastures - 82AL9, 82KA4. C. Potassium. 1. Sources, rates, time of application of potassium on high rainfall deep sand pastures - 80AL6.

The Stripe Rust Threat, B R. Whan, T. N. Khan

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

The wheat disease stripe rust caused crop losses estimated at $20 million in New South Wales during an epidemis in 983. Economic crop losses were reported in neighbouring States and as far westas Ceduna in South Australia. In some States large areas were sprayed with fungacide at considerable cost to control disease spread.

Wheat stripe rust has not been found in Western Australia yet, but all current evidence indicates that it will eventually reach this State.When it does, it has the potential to cause considerable crop losses every year, unlike the spasmodic losses from stem rust, and it will greatly …

Molybdenum Deficiency In The Wheatbelt, M M. Riley

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

The trace element molybdenum is needed in very small amounts in nitrogen metabolisms of crops and pastures. One of the projects that started as a result of the overall soil acidity research programme was the examination of molybdenum deficiency on acid soils throughout the South-West of Western Australia.

Soil Acidity In The Eastern Wheatbelt, W M. Porter, I. R. Wilson

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

In Western Australia parts of the sandplain of the eastern wheatbelt are very acid and produce poor crops, It was not until the late 1970s that the effect of soil acidity on the productivity of the sandplain soils was examined in any detail.

Since then researchers have learnt a great deal about the nature of soil acidity in the eastern wheatbelt sandplain soils and can suggest management options for farmers.

This article discisses the problem of the very acid soils. It does not deal with the moderately acid, medium textured soils of the eastern wheatbelt. Although the acidity of these …

Barley Production And Soil Acidity, P J. Dolling, W. M. Porter

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

One of the causes of reduced plant yields on acid soils is aluminium toxicity. because barley is extremely sensitive to this mineral, a project started last year to examine the influence of soil acidity on barley production in the main barley growing areas of Western Australia.

This article discusses some of the background information on the project and its aims.

Barley Foliage Diseases, Field Pea Diseases, T N. Khan, K. Brain, M Judges, N Sartori, K. Young, G Luke

Experimental Summaries - Plant Research

A. Experimental Notes. Barley foliage diseases: B. Scald: Effect of various fungicides. c. Scald: Response of cultivars to fungicides. D. Scald: Effect of seeding rate on infection and yield. E. Scald: Testing of fungicides S3308L. F. Net blotch: Potential yield losses. G. Net blotch: Screening fungicides. H. Spot type net blotch: Simulated stubble retention. I. Spot type net blotch: Potential yield losses. J. Powdery mildew: Effect of simulated stubble retention. K. Powdery mildew: Time of fungicide application. L. Powdery mildew: Comparing fungicides. M. Powdery mildew: Testing fungicide S3308L. N. Powdery mildew: Response to Erex in farmer's crops. o. Disease development …

Phosphorus Nutrition, M D A Bolland, M J. Baker

Experimental Summaries - Plant Research

Trial No.: 84E31 Location: Esperance Downs Research Station.Results: Fertilizer: TSP = triple superphosphate; NCRP = North Carolina rock phosphate; DRP = Duchess rock phosphate. Cultivation: UC = fertilizer applied to the soil surface and left there: C = fertilizer cultivated into the top 10 cm of soil with a rotary hoe after application to the soil surface. Trial No.: 84M63. Location: South Bodallin (Merredin Research Station). Results: TSP = triple superphosphate; NCRP = North Carolina rock phosphate; DRP = Duchess rock phosphate. UC = fertilizer applied to the soil surface and left there; C = fertilizer mixed in to the …

Oilseed Agronomy, A G. Mckay, R J. Larsen

Experimental Summaries - Plant Research

Potential of triazine tolerant rapeseed – 84AL44, 84MA23, 84WH31.

Rates and times of triazines on triazine tolerant rapeseed – 84MA22, 84WH33.

Fitness of triazine tolerant and susceptible F1's - 85GL7.

Cleaning crops for cereals – 84MA2.

Interstate variety evaluation – 84MA24, 84MT42,84WH32.

Chemical Manipulation Of Pasture Leys To Regulate Composition Ll., C W. Thorn, M W. Perry, P Fievez

Experimental Summaries - Plant Research

Introduction.

Materials and methods.

Experimental design.

Sowing.

Herbicides.

Measurements.

Results.

Discussion.

Conclusions.

Barley Agronomy 1984, K J. Young, B Wylde, T N. Khan

Experimental Summaries - Plant Research

General comments and highlights, 84ES40, 84ES31, 84 ES21, 84ES42.

Notes: Differences Among Nematode Populations In Tall Fescue Pastures In North, Central, And South Alabama, Jeffrey F. Pedersen, R. Rodriguez-Kabana

Department of Agronomy and Horticulture: Faculty Publications

Surveys of nematode populations in tall fescue (Festuca arundinacea Schreb.) pastures in north, central, and south Alabama in 1982 and 1983 showed significant differences in frequency of occurrence of many nematode species by geographical region. Although nematode damage has been implicated in the poor adaptation of tall fescue to the sandy soils of the extreme Southeast, many plant parasitic nematode species occurred in low frequency in south Alabama pastures. There were significant differences in the frequency of occurrence of Paratrichodorus christiei (Allen) Siddiqi by region. This nematode occurred with relatively high frequency in south Alabama in both years. There were …

Sulphur Needs Of Crops And Pastures, J S. Yeates

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

Sulphur deficiency has long been recognised as a potential problem of legume pastures in the higher rainfall areas (over 750 mm a year) of south-west Western Australia. Before the introduction of granulated superphosphate (about 1970), sulfer deficiencies commonly developed in spring on susceptible soils despite autumn applications of superphosphate (containing about 10.5 per cent sulphur).

In loww and medium rainfall areas sulphur deficiency is rarely reported, at least partly because of annual superphosphate applications. However large areas of the sandy-surfaced soils of Western Australia would become sulphur deficient for pastures and crops if sulphur inputsd in fertilisers were substantially reduced. …

Lupins Wheat Rotation Long Term Rotation Trials, I Rowland, W Hawkins

Experimental Summaries - Plant Research

Long term rotation trials - 66M29, 67Cl3, 67N4, 68E5, 68SG5, 73SG16.

Lupins Wheat Rotation - 80TS3, 82TS2, 82M26.

Lupin Growth And Water Use; Wheat, Barley, Pea, Rob Delane, J. Hamblin, A Bishop Ms

Experimental Summaries - Plant Research

84C16/84C17 Lupin Growth and Water Use. 84C19 Effect of Density and Nitrogen on Growth and Yield of Uniculm and Tillering Wheat. 84C20 Maturity, Nitrogen and Density Effects of Barley. 84C21 Wheat Variety Trial. 84C18/23/28/33 Pea Research in the Geraldton Region. 84C32 Effect of Terra Sorb on Wheat Yield.

Clover, Bluegreen Aphid And Red Legged Mite Screening, Medicago Murex Evaluation, D J. Gillespie

Experimental Summaries - Plant Research

Clover scorch: In spite of poor seasonal conditions, adequate levels of clover scorch developed in the test plots to readily identify susceptible clovers. Of the 333 introductions tested, 23% scored 3.0 or less indicating a high level of resistance. Bluegreen aphid screening: Two hundred and twenty four randomly selected subterranean clovers from all Western Mediterranean collections were tested for resistance to BGA in Nov/Dec of 1983. The susceptibility of annual legumes to Bluegreen aphid. Red legged earth mite screening: Results of two preliminary experiments to develop techniques for mass screening for RLEM resistance in subterranean clover were reported last year. …

Manganese Nutrition Of Cereals, J W. Gartrell

Experimental Summaries - Plant Research

Acidifying N fertilizers on availability of native soil Mn, and on fertilizer Mn applied in two forms and two mixing methods 84NO3. Acidifying N fertilizers Mn sources, methods of incorporation 84NO4. Acidifying N fertilizers, Mn sources, methods of incorporation 84NO5. Varietal differences among wheats in ability to absorb and utilize manganese in deficiency situations 84NO6. Manganese residual with acidifying nitrogen fertilizers 84NO7.

Investigation Of Root And Foliar Diseases Associated With Decline In Wheat Yields On Sandplain, Jill Wilson

Experimental Summaries - Plant Research

A Wheat Industry Research Council Project. In 1984 research was conducted in collaboration with Dr John Hamblin, Dr Allan Brown, Mr Rob Delane and Dr Mark Sweetingham. 1. Field Trial (GE84Cl5): Interactions between disease and agronomic factors, particularly rotation with lupins, and deep tillage. ( i) Yields, (ii) Incidence of root diseases, (iii) Root length and diseased root length, (iv) Leaf disease. 2. Farm Survey (sites from trial 84GE57 of Dr Allan Brown) Incidence of Common Root Rot

Hoegrass, Herbicide, Plant Growth And Soil Activity Of Glyphosate, T Piper

Experimental Summaries - Plant Research

Hoegrass tolerant ryegrass. Herbicide incorporation. Plant growth one season after herbicide use. Soil activity of glyphosate. Growth of lupins on plots treated with herbicide for each of the two previous seasons - Trials carried out at Geraldton, Wongan Hills and Wickepin measured the amount of pasture produced on plots that had been treated with herbicides while in crop the previous season.

Relative Crop Yields On Different Soil Types, Pea And Lupin, R French

Experimental Summaries - Plant Research

1. Relative crop yields on different soil types - 84M50, 84M51, 84M52, 84M53. 2. Pea and lupin time of sowing trials - 84JE42, 84LG32, 84LG31, 84ME55, 84ME53, 84ME54, 84N065. 3. Effect of P-Pickel on Pea Nodulation - 84M64. 4. Lupin Agronomy - 84M55, 82ME52.

Cercospora Disease Of Subterranean Clover, Root Rot, Cereal Smuts, Rapeseed Diseases, M J. Barbetti

Experimental Summaries - Plant Research

Cercospora disease of subterranean clover: - . Susceptibility to and losses from cercospora on sub-clover cultivars. Locality: Bibby Springs, Cervantes. (84M073, 84M075, 84M076). Subterranean clover root rot: - Seed treatments for root rot control. Locality: Albany (84AL39); Scott River (84 BU11). Fungicide drenches for root rot control. Locality: Perth (84PE22) using intact cores from Albany and Scott River. Cultivar screening for resistance to root rot fungi. Locality: Perth (84PE24) with field plantings at Albany and Scott River. Methyl bromide fumigation for control of sub-clover root rot. Locality: Vasse Research Station (84V15). Two sites. Cereal smuts – Fungicidal control of loose …

Seed Ecology Of Weeds, A H. Cheam

Experimental Summaries - Plant Research

1. Emergence of weed seedlings from different soil depths 82MT49 Mt Barker Research Station 83MT4 Mt Barker Research Station 82NR12 Northam Research Station 83NR2 Northam Research Station 82C37 Chapman Research Station 83C3 Chapman Research Station

2. Longevity of buried weed seeds 82MT50 Mt Barker Research Station 83MT5 Mt Barker Research Station 82NR13 Northam Research Station 83NR3 Northam Research Station 82C38 Chapman Research Station 83C4 Chapman Research Station

3. Emergence of weed seedlings in relation to soil type and cultivation 82PE32 South Perth

4. Changes in the number of viable dock seeds in soil under different soil surface treatments 83V2 Vasse …