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Environmental Indicators and Impact Assessment Commons™
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Articles 391 - 419 of 419
Full-Text Articles in Environmental Indicators and Impact Assessment
Soil Conservation Land Use, J E. Watson
Soil Conservation Land Use, J E. Watson
Journal of the Department of Agriculture, Western Australia, Series 4
MANY things are blamed for soil erosion—including storms, fires, cost-price squeezes, ploughing downhill and rabbits. But the basic factor is the risk involved in the way the land is used.
It is therefore vital that everyone—not only farmers—should begin their thinking about soil conservation from the land use aspect (of which special practices such as contouring, are a small though spectacular part.)
Land Use In The Kulin-Kondinin-Hyden District : Notes On A Recent Survey, D J. Carder
Land Use In The Kulin-Kondinin-Hyden District : Notes On A Recent Survey, D J. Carder
Journal of the Department of Agriculture, Western Australia, Series 4
A RECENT survey by the Department of Agriculture's Soil Conservation Service has highlighted the nature of the problems facing farmers with flooded or salt-affected land near salt lake country in the wheatbelt.
Bulletin No 3609 - Land Development In The South Eastern Wheatbelt, G T. Halpin, P. Nelson
Bulletin No 3609 - Land Development In The South Eastern Wheatbelt, G T. Halpin, P. Nelson
Bulletins - 3000 - 3999
Interest in the development of light lands in the south-eastern wheatbelt was spurred by the many ex-servicemen seeking farms after the 1939-45 World War.
Previous attempts to develop this area had been frustrated by poor crop yields, and by the poor carrying capacity of those volunteer pastures which developed on cleared land.
Research into reasons for the poor crop results was begun in 1948-49 with trials sown by Messrs Smith and Halpin between Borden and Lake Grace. The results clearly showed the important role played by copper and zinc in successful crop growth. Since then, field trials have been conducted …
The Ord River Regeneration Project. 2. Dealing With The Problem, K Fitzgerald
The Ord River Regeneration Project. 2. Dealing With The Problem, K Fitzgerald
Journal of the Department of Agriculture, Western Australia, Series 4
THE PROGRAMME of protective and remedial work being undertaken in the Ord River catchment area had as its major objective the re-establishment of perennial vegetation, as a means of controlling erosion and reducing the silt load of the rivers. It is now in its seventh year of operation.
Entering The Egg Industry With Laying Cages, W Ward
Entering The Egg Industry With Laying Cages, W Ward
Journal of the Department of Agriculture, Western Australia, Series 4
DEPARTMENT of Agriculture Bulletin 3579, "Entering the Egg Industry with Laying Cages", by W. Ward, examines various aspects of the cage system of housing laying hens.
This system is by far the most popular method of housing layers, with 90 per cent, of new farms using cages and many daep litter farms now converting to cages.
Space Requirements For Pullets And Layers On Litter, A H. Lean
Space Requirements For Pullets And Layers On Litter, A H. Lean
Journal of the Department of Agriculture, Western Australia, Series 4
UNEVEN growth, cannibalism, weakened resistance to disease, unsanitary conditions and poor production commonly arise from failure to provide sufficient floor, feed and watering space for pullets and layers.
The Ord River Regeneration Project. 3. Eight Years Of Progress, K Fitzgerald
The Ord River Regeneration Project. 3. Eight Years Of Progress, K Fitzgerald
Journal of the Department of Agriculture, Western Australia, Series 4
REGENERATION of degraded areas in regions of marginal rainfall is a slow process under the best of conditions, but on the Ord River Catchment, where much top-soil had been removed, the problem was unusually severe.
In many areas top-soil will have to be rebuilt before vegetation can be re-established.
This will be a long, slow process and regeneration will proceed through gradual plant succession from the "pioneer" annual species through to the permanent and more productive perennial species needed for a stable catchment area.
Cattle : And The Ord Irrigation Project, W M. Nunn
Cattle : And The Ord Irrigation Project, W M. Nunn
Journal of the Department of Agriculture, Western Australia, Series 4
No abstract provided.
The Ord River Catchment Regeneration Project. 1. The Nature, Extent And Causes Of Erosion In The Ord River Catchment Area, K Fitzgerald
The Ord River Catchment Regeneration Project. 1. The Nature, Extent And Causes Of Erosion In The Ord River Catchment Area, K Fitzgerald
Journal of the Department of Agriculture, Western Australia, Series 4
OF the 17,800 square miles of Ord River catchment area, an estimated 1,450 square miles of country is subject to varying degrees of erosion.
This lies astride the Ord River and its major tributaries, the Elvire, Negri, Stirling, Panton, Turner, Nicholson and RB rivers.
The bulk of the eroded country lies in W.A. but part projects into the Northern Territory.
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.
Contour Planting For Hillside Orchards. Part 1, N H. Shorter
Contour Planting For Hillside Orchards. Part 1, N H. Shorter
Journal of the Department of Agriculture, Western Australia, Series 4
FRUIT growers intending to plant an orchard on sloping land, would be well advised to consider the suitability of the block for planting on a contour system.
Kimberley Research Station Progress Report, 1964 : Climate, Jan Jerzy Basinski, E. A. Fitzpatrick, W. R. Stern
Kimberley Research Station Progress Report, 1964 : Climate, Jan Jerzy Basinski, E. A. Fitzpatrick, W. R. Stern
Journal of the Department of Agriculture, Western Australia, Series 4
A review of recent research in climate, soils, tropical crops and pastures, weeds, insect pests and cattle husbandry at the Kimberley Research Station.
EXTENSIVE climatic data are recorded at the Station and analysed in relation to crop performance, irrigation requirements, and farm management practices.
Lot Feeding Of Beef Cattle. 3. Facilities Required For A Feed Lot, W J O Wilkie
Lot Feeding Of Beef Cattle. 3. Facilities Required For A Feed Lot, W J O Wilkie
Journal of the Department of Agriculture, Western Australia, Series 4
MANY THINGS must be considered in planning a feed lot.
The site must be well chosen, fencing, gates and yards must be adequate for the cattle carried and feeding and watering facilities should be of a high standard.
Other things to consider are the provision of shelter and shade for the cattle and buildings for feed storage and other purposes.
Salt Land Survey, 1962 : Report Of A Survey Of Soil Salinity In The Agricultural Areas Of Western Australia, L C. Lightfoot, S. T. Smith, C. V. Malcolm
Salt Land Survey, 1962 : Report Of A Survey Of Soil Salinity In The Agricultural Areas Of Western Australia, L C. Lightfoot, S. T. Smith, C. V. Malcolm
Journal of the Department of Agriculture, Western Australia, Series 4
IN Western Australia there are within the agricultural areas about one million acres of salt land, largely within the 14-25 inch rainfall area used for cereal and wool production.
In March, 1962, farmers in 68 shires in the agricultural areas of Western Australia estimated that on their properties 305,270 acres of land previously cropped or sown to pasture had become salt affected. Of this total, 59,203 acres had gone salt in the seven years immediately before the survey.
Agriculture In The Lakes District : Report Of A Survey Of Farm Practices, A W. Hogstrom
Agriculture In The Lakes District : Report Of A Survey Of Farm Practices, A W. Hogstrom
Journal of the Department of Agriculture, Western Australia, Series 4
At the request of the Central South Zone Development Committee a survey which covered 58 farms in the Lakes District was carried out by officers of the Department of Agriculture. Field work for the survey started in 1961.
The Lakes District supports about 70 holdings adjoining a chain of salt lakes to the east of Newdegate and Hyden but west of the No. 1 Rabbit Proof Fence.
The chain of lakes is about 70 miles long running in a N.N.W. to S.S.E. direction. The lakes are O'Connor, Carmody, Hurlstone, Varley, Gulson, Fox, Camm, King, and Pal lamp.
Hints On Irrigating Citrus With Saline Water, Stanley Thomas Smith
Hints On Irrigating Citrus With Saline Water, Stanley Thomas Smith
Journal of the Department of Agriculture, Western Australia, Series 4
IN the past few years a number of citrus orchards near Perth have shown signs of damage caused by excess "salt" (chloride) uptake. All have been irrigated either from the Canning River or from private bores or dams.
Senior Soil Research Officer S. T. Smith describes glasshouse experiments which have given some useful guides to minimising "salt" damage in citrus trees irrigated with low-quality water.
Cultivate Saltland And Protect It From Grazing, Department Of Agriculture, Western Australia
Cultivate Saltland And Protect It From Grazing, Department Of Agriculture, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
Cultivate and protect to reclaim
A Review Of Agriculture On The Esperance Downs, J L. Shier, T. C. Dunne, E. N. Fitzpatrick
A Review Of Agriculture On The Esperance Downs, J L. Shier, T. C. Dunne, E. N. Fitzpatrick
Journal of the Department of Agriculture, Western Australia, Series 4
Esperance is approaching a period of rapid development based on the results of research at Esperance Downs Research Station and on farmers' properties in the area.
This article reviews the soils, vegetation, climate, agricultural development and development costs of the area.
Agriculture In Western Australia. 2. A Preview Of Future Development, A W. Hogstrom
Agriculture In Western Australia. 2. A Preview Of Future Development, A W. Hogstrom
Journal of the Department of Agriculture, Western Australia, Series 4
THE agricultural areas of Western Australia produce most of the State's agricultural output.
Only isolated small areas of arable agriculture exist in the North- West and tropical areas of the State.
Light Lands In Western Australia. 2. Their Nature, Distribution And Climate, George Henry Burvill
Light Lands In Western Australia. 2. Their Nature, Distribution And Climate, George Henry Burvill
Journal of the Department of Agriculture, Western Australia, Series 4
LIGHT land development for agriculture is a major feature in the story of agriculture in Western Australia. Sixty years ago there was less than one million acres of arable land.
The total area planted to all crops was less than 250 thousand acres and the wheat harvest was less than one million bushels.
Plan For The Pilbara, Department Of Agriculture, Western Australia
Plan For The Pilbara, Department Of Agriculture, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
A DOUBLE-BARRELLED plan for pasture regeneration and vermin control put into action by the Department of Agriculture this year gives promise for the rehabilitation of the run-down pastoral country in the rugged Pilbara region of Western Australia.
Loss Of Structure In Wheatbelt Soils, T C. Stoneman
Loss Of Structure In Wheatbelt Soils, T C. Stoneman
Journal of the Department of Agriculture, Western Australia, Series 4
MANY of the heavy soils of the West Australian wheatbelt have been farmed for 30 or 40 years, and farmers now frequently complain that these soils are becoming more difficult to handle, that greater power is needed to break up the soil, and the time that it remains in a workable condition after rains is shorter.
Water For Agriculture. 1. Water For Agricultural Purposes In Western Australia, Department Of Agriculture, Western Australia
Water For Agriculture. 1. Water For Agricultural Purposes In Western Australia, Department Of Agriculture, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
THE total soluble salts content of a water is the most important characteristic in determining the suitability of Western Australian waters for stock, irrigation or general use.
Other quality characteristics are of secondary importance.
Light Lands In Western Australia. 1. History And Future Prospects, F L. Shier
Light Lands In Western Australia. 1. History And Future Prospects, F L. Shier
Journal of the Department of Agriculture, Western Australia, Series 4
BECAUSE of the scattered distribution of light lands of the agricultural areas of Western Australia among the better soils, and their large total area, it is not surprising that attempts to develop these unattractive soils for agriculture started many years ago.
Soil Salinity In Western Australia, Stanley Thomas Smith
Soil Salinity In Western Australia, Stanley Thomas Smith
Journal of the Department of Agriculture, Western Australia, Series 4
The background to Western Australia's soil salinity problems, and a description of the main types of salt-affected land, by Senior Soil Research Officer, S. T. Smith, B.Sc. (Agric.)
Deferred Grazing : What It May Mean In The Mulga Region, W M. Nunn
Deferred Grazing : What It May Mean In The Mulga Region, W M. Nunn
Journal of the Department of Agriculture, Western Australia, Series 4
THE practice of deferred grazing has been written up in American textbooks and has been applied effectively to sections of the cattle range lands of the United States.
Early attempts to apply the principle in eastern Australia were not very successful, and it remained for our Departmental workers in the North-West and Kimberley Divisions to demonstrate the phenomenal results that could be obtained on grasslands in summer rainfall areas.
Soil Conservation In The Kimberley Area Of Western Australia, K Fitzgerald
Soil Conservation In The Kimberley Area Of Western Australia, K Fitzgerald
Journal of the Department of Agriculture, Western Australia, Series 4
OFFICERS of the Soil Conservation Branch of the West Australian Department of Agriculture, have not been engaged in soil conservation work in the Kimberleys prior to this year, not because a serious erosion problem did not exist, but rather because with limited trained staff available they were too fully occupied elsewhere.
The recent arrival of a senior Soil Conservation Officer in the area to assist and plan an approach to the problem of soil erosion in the Ord River catchment area is therefore very welcome.
Irrigation In Western Australia : Report On Government-Controlled Areas : 1958-59, H K. Gibsone
Irrigation In Western Australia : Report On Government-Controlled Areas : 1958-59, H K. Gibsone
Journal of the Department of Agriculture, Western Australia, Series 4
IRRIGATION in the south-western portion of Western Australia is mainly confined to the coastal plain west of the Darling Range where the three main irrigation districts of Harvey, Collie and Waroona have been established by the State Government.
The Government-controlled irrigation areas extend southward from Waroona (70 miles from Perth) to Dardanup (120 miles from Perth) and have an average width of about five miles.
Leaflet No 1003 - The Salt Problem In The Wheat Belt, G. H. Burvill
Leaflet No 1003 - The Salt Problem In The Wheat Belt, G. H. Burvill
Bulletins 1 - 2999
IN the wheat belt of Western Australian bare patches in farm paddocks are often seen. Many are bare, or almost bare, because of too much salt in the soil. The excess of salt prevents the germination of seeds, or kills living plants, because it causes the water supply for germination or growth to be cut off. This salt problem is so serious in places that single farms or groups of farms have been ruined; wheat growing on them has become unprofitable.