Open Access. Powered by Scholars. Published by Universities.®

Agronomy and Crop Sciences Commons™

Open Access. Powered by Scholars. Published by Universities.®

Articles 601 - 630 of 840

Full-Text Articles in Agronomy and Crop Sciences

Fallow Re-Assessment, D Tennant Jan 1979

Fallow Re-Assessment, D Tennant

Experimental Summaries - Plant Research

Fallow re-assessment. I. 72M29. Location - Merredin Research Station II. Other fallow results. As part of the fallow re-assessment project, a study was made of results from all trials done since the early 1920's which either compared fallow with non fallow or examined other aspects of fallowing. Analysis of these data has led to an update of some of the rainfall - soil water storage - yield relationships presented in previous reports. On the basis of these rainfall-yield relationships and of relevant rainfall statistics we can make an assessment of the probable value of fallow at different locations; Merredin; Chapman, …


1979 Pasture Species Investigations - High Rainfall Area, D A. Nicholas Jan 1979

1979 Pasture Species Investigations - High Rainfall Area, D A. Nicholas

Experimental Summaries - Plant Research

Contents. 1. Clover cultivar grazing trial - 68NA1 - N. Bannister. 2. Perennial versus annual grass grazing trial - 72MN5 - Manjimup Research Station. 3. Pasture types demonstration - 72D1 - Denmark Agricultural High School. 4. 76MT3 - Trikkala evaluation trial - Mt Barker Research Station - see also report of D.J. Gillespie and separate progress report. 5. Clover cultivar evaluation trials: 77AL22 - Wellstead. 77BU10 - Karridale. 77D5 - Denmark Research Station. 78BR16 - Darradup. 78BU15 - Jindong. 78DE1 - Tingledale. 78MN5 - Manjimup Research Station. 79BY6 - Waterloo. 79ES35 - North Merivale. 79ES36 - Mount Merivale. 79MA12 - …


Trace Element Nutrition., J W. Gartrell, R F. Brennan Jan 1979

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

Experimental Summaries - Plant Research

Long term copper trial ( 28years ), 66N14.

Conclusions


Declared Plant Control & Total Vegetation Control, P A. Rutherford Jan 1979

Declared Plant Control & Total Vegetation Control, P A. Rutherford

Experimental Summaries - Plant Research

(A) Declared plant control. 1. Arum lily (Zantedeschia aethiopica). Chemical control of Arum Lily (Zantedeschia aethiopica). Properties: Prevelly Park, Margaret River (A), Wonnerup (B). (A) dense Arum Lily under shade from trees in Park reserve. (B) scattered Lily in clover pasture grazed by dairy cattle. 2. Blackberry (Rubus spp). 79AI60 - Evaluation of Roundup for blackberry control. Property - R. Wolfe, Bornholm. Herbicides for blackberry control. Property – G. Wright, Kent River. 79AL62 - Evaluations of “Krenite” for blackberry control. Property R.G. Ebbott, Bow Bridge. 3. Pennyroyal (Mentha pulegium) 79AP64 - Herbicide screening on Pennyroyal (Mentha pulegium). D. Wells, Denmark. …


A. Minimum Tillage Investigations. B. Evaluation Of Stubble Management Techniques, D Jasper Jan 1979

A. Minimum Tillage Investigations. B. Evaluation Of Stubble Management Techniques, D Jasper

Experimental Summaries - Plant Research

77WH17 Continuous cropping site, Wongan Hills Research Station 77WH18 Rotational site, Wongan Hills Research Station 77M13 Heavy land continuous cropping site, Merredin Research Station 78M25 Light land continuous cropping site, Merredin Research Station 77M56 Rotational site, Merredin Research Station 77A16 Continuous cropping site, Avondale Research Station 77A43 Rotational site, Avondale Research Station 77E52 Rotational site, Esperance Downs Research Station 78BA42 Continuous Cropping Site, Badgingarra Research Station 77MT15 Continuous Cropping Site, Mt Barker Research Station 79WH6, Evaluation of stubble management practices, Wongan Hills Research Station 79M6 Heavy Land, Merredin Research Station 79M7 Light land, Merredin Research Station


Barley Yellow Dwarf Virus In Barley And Oats (79mt20, 79pe13) Experimental Summary 1979, G D. Mclean, T N. Khan, M Grimm, J D. Sandow Jan 1979

Barley Yellow Dwarf Virus In Barley And Oats (79mt20, 79pe13) Experimental Summary 1979, G D. Mclean, T N. Khan, M Grimm, J D. Sandow

Experimental Summaries - Plant Research

(1) Yield assessments have continued similar to those used in 1977 and 1978. Essentially, plants with symptoms typical of BYDV are marked in the early spring as well as a similar number without symptoms. Yield differences were obtained both for Clipper Barley and an oats variety. (2) Two pilot experiments using viruliferous aphids were carried out at Mount Barker (79MT20) and at South Perth · (79PE13). Both Rhopalosiphum padi and R. maidis were used. Infection at Mt Barker failed, and therefore no data is presented. The Perth experiment was planted on August 31, 1979. The original plan was to have …


Screening Of Clovers For Resistance To Clover Scorch, D L. Chatel Jan 1979

Screening Of Clovers For Resistance To Clover Scorch, D L. Chatel

Experimental Summaries - Plant Research

One thousand one hundred and seventy clover cultivars, varieties and crossbreds were screened in the field for susceptibility to the clover scorch disease fungus.


Summary Research Results 1979, G A. Pearce Jan 1979

Summary Research Results 1979, G A. Pearce

Experimental Summaries - Plant Research

DPX4189 for weed control in wheat 79N27. Location - Toodyay. Herbicide mixtures for broadleaved weeds in wheat. Location - Toodyay. Diuron mixtures for broad leaf weeds in cereals. Location - "Glencoe" C/- P.O. Bindoon. Herbicides for early planting 79MO42. Location – N. Tonkin – Coomberdale. Broad leaf weeds in cereals 79MO45. Location - Miling (J. Lewis, Plympton). Herbicides for early planting 79LG27. Location – Karlgarin.


Long Term Rotation Trials, I Rowland Jan 1979

Long Term Rotation Trials, I Rowland

Experimental Summaries - Plant Research

Locality: 66M29, 67Cl3, 67N4, 68E5, 68SG5, 73SG16. Soil type, history, rainfall and wheat/lupin yields.


Experimental Summary 1979, J R. Peirce Jan 1979

Experimental Summary 1979, J R. Peirce

Experimental Summaries - Plant Research

Contents 79ME28 Soursob (Oxalis caprae) control along Roadsides. 79NO30 A & B.

79NO29 Pre and post emergent applications of Diuron for soursob control in cereals.

79ME31 Post emergent control of soursob in cereals. 79NO39

79ME26 A & B Control of Matricaria (Pentzia sp.) in cereals.

79NO40 Dormancy of Cape Tulip (homeria sp.).

79NO38 Patersons curse (Echium plantagineum) Control in pastures. Afghan thistle (solanum hoplopetalum) Control in pastures. 79ME28 and 79N030 A & B Soursob Control Along Roadsides. Chemicals: Roundup 1, 2 and 3 1ha-1, Diuron 1, 2 and 3 1ha-1, Sencor TD 1, 2 and 3 kgha -1 ) applied …


Investigations Of Ryegrass Toxicity, B A. Stynes Jan 1979

Investigations Of Ryegrass Toxicity, B A. Stynes

Experimental Summaries - Plant Research

Development of toxicity in the field. Experiment – 79KA13. Location – C. Butterworth, Katanning. The effect of herbicides and growth regulants on gall development. Experiment – 79KA14. Location - C. Butterworth, Katanning. Effect of burning on the production of galls. Experiment – 79KA9. Location - L. Blight, Gnowangerup; K. Butterworth, Katanning; C. Hanna, Katanning; J. Shepherdson, Gnowangerup. Table 1 Previous land use and characteristics of fires at four farms where fields were burnt in autumn to reduce the level of toxicity of ryegrass in the subsequent spring pasture. Table 2 The numbers and relative proportions of galls retained in the …


Cereal, Pasture Legume And Water Supply Prospects At Forrestania : Results Of Experimental Work East Of Hyden, Western Australia, T E. Mcdowell, M G. Mason, J W. Gartrell, William J. Toms, I A F Laing Jan 1979

Cereal, Pasture Legume And Water Supply Prospects At Forrestania : Results Of Experimental Work East Of Hyden, Western Australia, T E. Mcdowell, M G. Mason, J W. Gartrell, William J. Toms, I A F Laing

Technical Bulletins

The agricultural potential of the Forrestania area appears at least equal to that of much of the settled eastern wheatbelt. The scrubplain soils of the Forrestania area have an average yield potential of at least 1 000 kg/ha wheat and carrying capacity of 1.8 to 3.7 sheep per hectare on improved pastures. The use of clover ley rotations would maintain these levels of potential yield. Partial crop failures caused by adverse seasonal conditions could be expected 10 years in every 100.


Bulletin No 3573 - Wheat Diseases In Western Australia, A. G. P. Brown, G. C. Mac Nish Jan 1978

Bulletin No 3573 - Wheat Diseases In Western Australia, A. G. P. Brown, G. C. Mac Nish

Bulletins - 3000 - 3999

Diseases caused by pathogenic organisms can seriously affect the yield of wheat. Some diseases are comparatively rare whereas others occur over a large area of the wheatbelt year after year.

it is important to be able to identify diseases correctly so that the appropriate control measures can be applied, In the following article the diseases of wheat caused by pathogenic organisms are illustrated, with their symptoms described, and where possible, the control measures given.


Nitrogenous Fertilisers For Cereals, Rape And Linseed Results From 1978 Trials., M G. Mason Jan 1978

Nitrogenous Fertilisers For Cereals, Rape And Linseed Results From 1978 Trials., M G. Mason

Experimental Summaries - Plant Research

Effect of AGRAS 18:18, AGRAS 12:24 and D.A.P. on germination of wheat, 78C2, 78A2, 78GE1, 78N2, 78ES2.

Rates and sources of N and P for wheat, 78LG2, 78ME1, 78NA2, 78GE2, 78KA1, 78MO3, 78NO2, 78TS2.

Agras no. 1 and D.A.P. for wheat production, 78SG15.

Effect of stubble treatment on nitrogen fertiliser requirement, 78C3, 78WH3, 78M2.

Sulphur-coated urea for wheat, 78TS1, 78E2, 78M01, 78NA1.

Sulphur-coated urea for oats, 78MO2.

Sulphur-coated urea for barley, 78NO1.

Nitrogen fertiliser requirement in alternate crop-pasture rotation, 78BA1, 78WH2.

Effect of placement of Nitrogen fertiliser on wheat direct drilled or conventionally sown, 78WH1,

78E1, 78M1.

Effect of placement …


Investigations Of Ryegrass Toxicity., Brian A. Stynes Jan 1978

Investigations Of Ryegrass Toxicity., Brian A. Stynes

Experimental Summaries - Plant Research

Effect of burning on the production of galls, 78KA13.

Effect of the nematicide Nemacur, on the development of toxicity in ryegrass pasture, 78KA15.

Survival of Anguina sp and emergence from galls, 78KA14.

Study of populationsof Anguina sp on plants, 78KA31.


Grain Legume Agronomy, G H. Walton Jan 1978

Grain Legume Agronomy, G H. Walton

Experimental Summaries - Plant Research

Wheat yield following Ultra and Unicorp lupin, 77A21.

Grain legume species comparison, 78A10, 78B9, 78B10, 78NA6.

Lupin cultivar evaluation, 78B7, 78WH16

Cicer variety comparison, 78HA4.

Cicer arietinum agronomy, 78HA5.

Miscellaneous legume species comparison, 78M4, 78MT9.

Lupin cultivar split-seed comparison, 78M012.

CB49 Agronomy (continuing experiment), 77M017.

Faba bean evaluation, 78MT10.

Undersowing crops with subclover (cereal phase), 77NA25.


A. Take- All Of Cereals. B. Cereal Seed Dressings., G C. Macnish Jan 1978

A. Take- All Of Cereals. B. Cereal Seed Dressings., G C. Macnish

Experimental Summaries - Plant Research

Take-all of cereals. Survey. Summary.

Effect of nitrogen sources on take-all, 76LG25, 77E4, 77MT19, 77LG20.

Take-all nitrogen sources and rates, 78BR2, 78ES8, 78LG4, 78KA6, 78NA5.

Take-all nitrogen sources and rates of sowing, 78ES9, 78KA5, 78NA4.

Take-all, row spacing and rates of nitrogen, 78ES10, 78LG6, 78MT8.

Take-all and N-serve, 78E16

Take-all and root-soil, 78LG3.

Take-all and copper sulphate, 78JE6, 78LG5.

Cleaning crops and take-all control, 76N5, 76M47.

Take-all following cleaning crops 78JE5.

Effect of grass control on take-all, 77JE4.

Long term rotation and take-all, 77ES8.

Take-all build-up on new land, 78JE4.

Take-all build-up and rates of phosphorus on wheat, 78ES30.

Continuous …


Minimum Tillage Trials Summary -1978, D Jasper, J Holmes Jan 1978

Minimum Tillage Trials Summary -1978, D Jasper, J Holmes

Experimental Summaries - Plant Research

Weed control. 77M13, 77M56, Comments.

Weed, wheat counts and yields, 77WH17, 77WH88.

Schedule of operations.

Continuous and rotational sites.

Sub treatment.


Pasture Species Investigations, Wheat Belt., N R. Mckeown Jan 1978

Pasture Species Investigations, Wheat Belt., N R. Mckeown

Experimental Summaries - Plant Research

Trials in progress, 71WH13, 7OME2, 71LG17, 68MO23, 78C13, 75N18.

Seasonal conditions.

Grazing trials, 68M023, 71LG17, 71WH13.

Small plot trials, subterranean clover trials. Subterranean clover strain trials, 75LG21 and 76LG21.

76N16, 77N23, 76N17, 76N18, 78KA12, 78C13, 75M025 and 75ES23.

Legume species grazing management trial, 68M023.

Comparison of production from Cyprus, barrel medic and volume pasture, 71LG17.

Sheep. 71WH13, wheat yields.

Clover cover, 76LG5, 76ME6, 76NA6, 76LG5.

Growth and cover ratings. Composition. Subterranean clover trials, 75N18.

Strain competition and seed yields 1977. Hand sown.

Dwalganup crossbred trials. Seedling density and growth and cover rating. Medic trials


Phosphorus Source Trials, M D.A Bolland Jan 1978

Phosphorus Source Trials, M D.A Bolland

Experimental Summaries - Plant Research

HIGH RAINFALL AREAS.

SAND: 76BU1 - New land phosphorus sources trial (pasture) T. O'Bryne, Yallingup. 76BU4 - Old land phosphorus sources trial (pasture) T. Combe, Busselton.

GRAVEL: 76MT10 - New land phosphorus sources trial (pasture) Mt. Barker Research Station. 76MT9 - Old land phosphorus sources trial (pasture) Mt. Barker Research Station. 77MT1 - New land particle size and method of cultivation phosphorus sources trial (pasture) Mt. Barker Research Station. 77MT2 - Old land phosphorus sources cropping trial (oats every third year). Mt. Barker Research Station.

MEDIUM RAINFALL AREAS.

SAND: 77E537 - Young land phosphorus sources trial (pasture) F. Fels, Esperance. …


Supplementary Summary Report 1977 Pasture Species Investigations - Wheatbelt., N. R. Mckeown Jan 1978

Supplementary Summary Report 1977 Pasture Species Investigations - Wheatbelt., N. R. Mckeown

Experimental Summaries - Plant Research

Seed yields of early maturing subterranean clovers. A brief description of weather conditions in 1977, site details and results of germination counts and growth ratings were included in the Summary Report for 1977. Drill-sown trials - Seed yields from the trials varied from good in the southern wheatbelt to very poor in the northern areas. Test samples were taken from trials 77GE32, 77GE40 and 77GE41 in the Pindar and Tardun districts, 77ME22 at Koorda and 77TS25 at Perenjori but the quantity of seed did not warrant yield assessment. Trial 77M022 at Gabalong was not sampled. Seed yields from the rest …


Clover Selection And Breeding Programme - Experimental Summary - 1978, C M. Francis Jan 1978

Clover Selection And Breeding Programme - Experimental Summary - 1978, C M. Francis

Experimental Summaries - Plant Research

Early maturing crossbreeds.

Improvement in T. brachycalycinum.

Genetic resources of T. subterraneum


Summary Of Results Minimum Tillage Trial 1978, Take-All And Root Rot Assessments., G C. Mac Nish Jan 1978

Summary Of Results Minimum Tillage Trial 1978, Take-All And Root Rot Assessments., G C. Mac Nish

Experimental Summaries - Plant Research

77A16, 77A43, 78BA42, 77E18, 77E52, 77M13, 77M56, 78M25, 77MT15, 77MT51, 77WH17, 77WH88.


Variety By Time And Rate Of Planting., M W. Perry Jan 1978

Variety By Time And Rate Of Planting., M W. Perry

Experimental Summaries - Plant Research

Variety x time of planting x septoria control, wheat, 78BA5.

Oat genotype x time of planting, 78BA3, 78A5, 78MT6,78 B2,

Seedling rates for oats, 78MT7,78 A6, 78 BA4, 78 B3,

Crop trials, high rainfall, 78BR4, 78MA5, 78KE6, 78KE5.

Alternative crops for black wattle soils, 78GE26.


1978 Summary Of Experiments - Net Blotch Infection Studies, T Khan Jan 1978

1978 Summary Of Experiments - Net Blotch Infection Studies, T Khan

Experimental Summaries - Plant Research

Net blotch infection studies, 78A17, 78PE1, comments.

Scald infection studies, 78A18, 78PE1.

Crop loss assessment, net blotch of barley, 78WH36, 78A20.

Powdery mildew nursery, 78A15, 78BA20, 78E17, 78MT16, 78WH34, 78AL8.

Barley disease survey,

Barley disease nursery, 78A16, 78BA21, 78E18, 78M12, 78MT17, 78N8, 78WH35.

Barley yellow dwarf virus incidence, distribution and yield loss studies file 2443 ex.

78MN1, 78MT11, 78B5, 78E15.


1977 Experimental Summary - Clover Scorch, A Bokor Jan 1978

1977 Experimental Summary - Clover Scorch, A Bokor

Experimental Summaries - Plant Research

1. Clover Scorch Fungicide Demonstration - 77BU15. 2. Clover Scorch Disease Progress Curve. 3. Clover Scorch Spore Survival.


Plant Research Division, Weed Control., J R. Peirce Jan 1978

Plant Research Division, Weed Control., J R. Peirce

Experimental Summaries - Plant Research

Diuron plus MCPA mixtures for broadleaved weed control in cereals, 78Mo49B, 78Mo49A, 78No44, 78Na30.

Flowable vs powder formulation of duiron for soursob control in cereals, 78No42.

Time of spraying duiron for soursob control in cereals, 78Mo39, 7845D, 78M45B, 78No31B.


Phosphorus And Sulphur Interactions, 1978., J S. Yeates, R J. Lunt, K F. Longbottom Jan 1978

Phosphorus And Sulphur Interactions, 1978., J S. Yeates, R J. Lunt, K F. Longbottom

Experimental Summaries - Plant Research

Yield results, 78AL3, 78KE4, 78M08, 78BY3, 78BA8, 78BU3, 78N04, 78A7, 78C4, 78B4, 78MA2.

Soil sampling data.


Field Crops And Pasture Experiments., P Mcr Wood Jan 1978

Field Crops And Pasture Experiments., P Mcr Wood

Experimental Summaries - Plant Research

Lupinosis.

Badgingarra.

On-farm treatments.


Yield Loss Due To Weeds In Wheat., John Moore Jan 1978

Yield Loss Due To Weeds In Wheat., John Moore

Experimental Summaries - Plant Research

Yield loss due to weeds in wheat 1, 78M36.

Yield loss due to weeds in wheat 2, 78C35.

Yield loss due to weeds in wheat 3, 78BA53.

Yield loss due to weeds in wheat 4, 78WH68.

Results.