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Articles 1 - 4 of 4
Full-Text Articles in Physical Sciences and Mathematics
Frost Injury To Cereals In W.A, M W. Perry, A. G. P. Brown
Frost Injury To Cereals In W.A, M W. Perry, A. G. P. Brown
Journal of the Department of Agriculture, Western Australia, Series 4
Late spring frosts commonly reduce yields and affect the quality of grain in wheat crops, especially in the southern, eastern and north-eastern districts. The damage is usually localised on individual farms, but is sometimes widespread.
Barley, and oats to a lesser extent, are also affected. Average losses of wheat in Western Australia have been estimated at 3 to 5 per cent, per year, or about 2 million bushels on current production figures.
Agriculture And Pollution In Western Australia. Part 1. Background, C V. Malcolm
Agriculture And Pollution In Western Australia. Part 1. Background, C V. Malcolm
Journal of the Department of Agriculture, Western Australia, Series 4
For centuries there has been awareness of pollution but it has received dramatic publicity in recent years.
In Western Australia, provisions for its control are written into the Health Act and many other Acts besides the Environmental Protection Act of 1971.
A number of factors have acted worldwide and locally to increase awareness and concern about pollution, and to justify careful examination of the problems it causes.
Agriculture And Pollution In Western Australia. Part 2. Pollution Problems In W.A, C V. Malcolm
Agriculture And Pollution In Western Australia. Part 2. Pollution Problems In W.A, C V. Malcolm
Journal of the Department of Agriculture, Western Australia, Series 4
In Part I pollution was defined as a reduction in the usefulness of a resource and its significance in relation to resource fragility was discussed. Pollution problems in Western Australia are here considered in broad geographical regions with further subdivision into pollution types.
Dust Storms Cause Yield Losses, Department Of Agriculture, Western Australia, C. H. Trotman
Dust Storms Cause Yield Losses, Department Of Agriculture, Western Australia, C. H. Trotman
Journal of the Department of Agriculture, Western Australia, Series 4
Farmers and research workers are well aware that heavy grazing during summer loosens and exposes soil to the action of strong winds and summer thunder storms. They also realise that dust storms mean soil loss from paddocks, but until now there has been little idea of the effect of these storms on crop yields in subsequent seasons.