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Physical Sciences and Mathematics Commons™
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Articles 1 - 7 of 7
Full-Text Articles in Physical Sciences and Mathematics
Summer And Autumn Rainfall In Relation To Epidemics Of Wheat Stem Rust In Western Australia, W A. Shipton
Summer And Autumn Rainfall In Relation To Epidemics Of Wheat Stem Rust In Western Australia, W A. Shipton
Journal of the Department of Agriculture, Western Australia, Series 4
High summer and autumn rainfalls, followed by rust infection of volunteer plants and favourable conditions during late winter and spring, lead to rust epidemics.
WIDESPREAD outbreaks of wheat stem rust are rare in Western Australia.
Irrigation In The South-West : Report On Government-Controlled Areas, 1965-66, G Gauntlett
Irrigation In The South-West : Report On Government-Controlled Areas, 1965-66, G Gauntlett
Journal of the Department of Agriculture, Western Australia, Series 4
LARGE scale irrigation in the south-western part of Western Australia is confined to the coastal plain, west of the Darling Range where the three irrigation districts of Waroona, Harvey and Collie have been established.
Piggery Septic System, N E. Macintyre
Piggery Septic System, N E. Macintyre
Journal of the Department of Agriculture, Western Australia, Series 4
ONE of the problems of intensive houses for pigs is the disposal of the dung and urine.
If proper arrangements are not made to remove this, it soon accumulates in an offensive pile at one end of the piggery, making an excellent breeding ground for flies.
Cultivation : Does Haste Mean Waste?, H M. Fisher
Cultivation : Does Haste Mean Waste?, H M. Fisher
Journal of the Department of Agriculture, Western Australia, Series 4
Many farmers believe that increasing the speed of cultivation and seeding implements will cause deterioration of soils and reduced crop yields.
In a three-year trial on clover ley land at Wongan Hills higher cultivation speeds tended to increase rather than decrease wheat yields. There was some deterioration in the physical structure of the soil.
Egg Shell Quality, R J. Bishop
Egg Shell Quality, R J. Bishop
Journal of the Department of Agriculture, Western Australia, Series 4
Recent overseas work and local industry developments indicate that the calcium content of feed for laying hens in Western Australia should be increased to achieve satisfactory egg shell strength.
Age, temperature and breeding are other important influences on egg shell quality.
Ammonium Nitrate Blasting Agent (Anfo) For Land Clearing, G A. Greaves
Ammonium Nitrate Blasting Agent (Anfo) For Land Clearing, G A. Greaves
Journal of the Department of Agriculture, Western Australia, Series 4
The introduction of "prilled" AN has revolutionised explosives practice and made possible safer and cheaper methods of blasting.
This article outlines the methods of handling and using ANFO blasting agent for land clearing.
Leaf Scorching, Department Of Agriculture, Western Australia
Leaf Scorching, Department Of Agriculture, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
DURING the summer months, leaves of many plants develop browning and scorching which progresses inwards from the leaf margin or downwards from the leaf tip.
The affected parts become dry and brittle and may break away from the remaining green areas.