Plant Sciences Commons^™

Summary Of 1974 Weed Control In Lupin Evaluations, J. G. Allen

Experimental Summaries - Plant Research

Lupin Trials 1974 1. Herbicides x Depth of Seeding - There is no evidence of a herbicide x depth of seeding interaction in lupin plant numbers, at either Broomehill or Eradu. The lupin plants on the shallow sown plots were reported to be more effected by herbicides than on the deeper sown plots at Eradu. It is suggested that shallow seeding may be a factor in predisposing lupin crops to simazine damage particularly on sandy soils, however it has not been possible to demonstrate such on effect. 2. Herbicides x Time of Seeding - At two sites (Myrup, Namban) there …

1975 Weed Control In Lupin Investigations, J M. Allen

Experimental Summaries - Plant Research

1. The results with pre emergence herbicides confirm previous recommendations of simazine 1.25 kg/ha on heavy soil and diuron 1.25 kg/ha on light soils with the following modification. a) Simazine rates need to be increased to 3 kg/ha on very early (April) sovm crops in southern areas. b) Simazine has not damaged lupins in southern areas and where ryegrass is a major problem on sandy soils (i.e. Esperance) it is likely to give better responses than diuron. 2. As suspected in previous years simazine can by way of effective weed control produce a marked lupin vegetative response without any increase …

Reduction Soursob Twelve Months After Treaqtment In Cereal Crops, J R. Peirce

Experimental Summaries - Plant Research

Locations - Dangin / midstyle variety of soursob, Greenough / midstyle variety, Kalgoorlie Mt Monger Station chemical control of matriciaria, Northam - common short-style variety, Quairading ryegrass control in cereals, Wagin / midstyled variety of soursob in cereals.

1975 Preliminary Reports - Take-All Survey - Wheat And Barley Crops, G C. Macnish

Experimental Summaries - Plant Research

Introduction - Surveys to determine the incidence of take-all in wheat and barley crops have been carried out for the past three seasons. Unavoidable delays in the completion of a growth room has meant that finalization of results for take-all assessments have been delayed. 75A26, 75A27, 75A28 Part I and II, 75A29, 75E18, 75M42, 75M43, 75M44, 75M45, 75N21, 75SG14, 75SG15, 75SG17, 75WH63, 75WH64.

1975 Pasture Species Investigations High Rainfall Area, D. A. Nicholas

Experimental Summaries - Plant Research

Contents - 1. Clover cultivar grazing trial - North Bannister - 68NA1. 2. Clover cultivars x red legged earth mite - Chowerup - 70BR16. 3. Pastures species x stocking rate - Denmark - 72D1. 4. Stocking rate and conservation for steer beef production - Mt. Barker Research Station - 71MT46. 5. Perennial versus annual grass grazing trial - Manjimup Research Station - 72MN5. 6. Trials in Association - Albany Regional Office. (i) Rate and time of fungicide on clover scorch - South Stirlings - 75AL33. (ii) Rate and types of fungicide on clover scorch - South Stirlings - 75AL34. (iii) …

1975 Experimental Programme With Lupins, G H. Walton

Experimental Summaries - Plant Research

74MO10 - Pasture establishment under a lupin orop (Wheat crqp 1975). 75AL3 - 6 Time x 3 Rates x 2 Varieties x 2 Herbicide Factorial. 75B3 - Lupin Agronomy in High Rainfall Area. 75BA4 - Early planting of Unicrop lupin. 75GE4 - Polyculture of Wheat and Lupin. 75GE5 - Rate of seeding Unicrop - low rainfall site. 75JE4 - Time of planting x rate of seeding lupins. 74MO10 - Pasture establishment under a lupin crop (Wheat crop 1975). 75MO6 - Time of planting x rate of seeding with L. albus cv WB2. 75MO7 - Pasture establishment under lupin crops. 75MO12 …

1975 Drought Responses Of Wheat Cultivars - Environment Responses Of Subterranean Clover., R N. Weir

Experimental Summaries - Plant Research

Environment responses of subterranean clover. Aim - To clarify the responses of four cultivars to temperature, vernalisation and photoperiod. Method - Dinninup, Midland B, Geraldton and Blackwood sub clover was grown in phytotron cabinets under 14 hour and 10 hour photoperiods and temperatures 10°c day/5°c night, l5/l0°c, 20/l5°C, 25/20°c. A seed vernalisation treatment of 6 weeks refrigeration of swelled seed was included. Dissections were made to observe first floral initiation and first flower production was noted. Conclusions - Higher temperatures either had no effect or delayed floral initiation, but accelerated flower development greatly from initiation to anthesis. Photoperiod and vernalisation …

Docks In Western Australia, J M. Allen

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

A survey carried out by the Department of Agriculture has shown that docks are the most serious weed of the higher rainfall areas of Western Australia. They are estimated to cost farmers $400 000 annually in lost production. One of the main reasons why they are important weeds is that they regenerate rapidly from tubers and compete with desirable annual pasture species. Also the upright dock flowering stems are woody and unpalatable. Individual plants become intertwined and deter stock from grazing summer pastures.

Results from the survey of the dock problem are given in this article. The findings show that …

1975 Fallow Re-Assessment And Soil Physical Data Accumulation, D Tennant

Experimental Summaries - Plant Research

This report summarises progress and data available for the following investigations. 1. Fallow Re-assessment - 72M29. 2. Soil Physical Data Accumulation. (a) Evaluation of methods of bulk density measurement. (b) Water holding capacities and mechanical analyses of wheatbelt soils. (c) Water holding capacities of metropolitan sands. TABLE 3 Water holding capacities (1/10 - 15 Atmosphere water contents) of metropolitan sands (mm of water). Bulk density of 1.6 assumed. 1. Medina Research Station. 2. Morley White Sand. 3. Karrakatta Sand. 4. Bassendean Sand. 5. South Perth Lawn. 6. South Perth Scrub. 7. Underwood Avenue Research Station. 8. Floreat Park Sand. 9. …

Sulphate Of Potash For Quality, Kali Export Gesellschaft

Robert Mikkelsen

No abstract provided.

Sulphate Of Potash For Quality

Benjamin L. Harwood

No abstract provided.

Sulphate Of Potash For Quality

Robert Mikkelsen

No abstract provided.