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

Digital Commons Network™

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

Environmental Sciences

Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 19771 - 19800 of 19870

Full-Text Articles in Entire DC Network

Farm Water Storage : Circular Brick Reservoirs, R P. Harington Jan 1962

Farm Water Storage : Circular Brick Reservoirs, R P. Harington

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

A circular brick tank is a cheap and efficient water storage which can be easily built on any farm. The method described below by Kimberley Research Station manager R. P. Harington was used to build a swimming pool—storage on the station.


Flooding And Salt Problems In The Wheatbelt, Department Of Agriculture, Western Australia Jan 1962

Flooding And Salt Problems In The Wheatbelt, Department Of Agriculture, Western Australia

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

VALUABLE land has become salty in parts of the West Australian agricultural areas because most of the surrounding land has been cleared and developed for agriculture.

This salting of a small proportion of the land is part of the price paid for the development of agriculture in this State.

Drainage is not the answer to the wheatbelt flooding and salt land problems.

A more practical approach is to limit runoff from sloping land, and to make good use of salt-affected land by growing salt tolerant perennial pastures on it, says the Soils Division of the Department of Agriculture.


The Gascoyne River Catchment Area, W M. Nunn Jan 1962

The Gascoyne River Catchment Area, W M. Nunn

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

A RECENT Department of Agriculture survey of the Gascoyne River catchment area has indicated that deterioration of plant cover in the area contributes to the severity of floods which regularly damage the town of Carnarvon.

It is hoped that the results of the survey will help efforts to regenerate the catchment area, and reduce the risk of flooding.


Stilling Coastal Sand Drifts With Marram Grass, J L. Mcmullan Jan 1962

Stilling Coastal Sand Drifts With Marram Grass, J L. Mcmullan

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

DRIFTS in dunes on the coast between Albany and Geraldton may be stabilised by planting marram grass (Ammophila arenaria).

However, it should be anticipated that much of the planted grass will die before an area is finally stabilised.


Water For Agriculture. 2. Plants For Salty Water, C V. Malcolm Jan 1962

Water For Agriculture. 2. Plants For Salty Water, C V. Malcolm

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

ALL natural water supplies contain dissolved salts. In wet climates these salts are usually not present in sufficient quantity to cause plant damage.

However, in Western Australia many natural water supplies contain harmful amounts of dissolved salts.


Water For Agriculture. 3. Watering Plants With Salty Water, Stanley Thomas Smith Jan 1962

Water For Agriculture. 3. Watering Plants With Salty Water, Stanley Thomas Smith

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

In Western Australia it is often necessary to use saline water for irrigation and gardening because of the lack of better water.

Two factors influence the results achieved. One is the selection of suitable plants, the other is the way in which the water is used.


Paspalum Vaginatum For Salty Seepages, C V. Malcolm Jan 1962

Paspalum Vaginatum For Salty Seepages, C V. Malcolm

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

Paspalum vaginatum, aptly termed "sea shore paspalum" has over the last fifteen years shown an amazing ability to thrive in wet salty situations.

Seed of the grass is not available but it may easily be established by planting pieces.

This article reviews where and how the grass may be used.


Light Lands In Western Australia. 2. Their Nature, Distribution And Climate, George Henry Burvill Jan 1962

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.


Water For Agriculture. 4. Clearing Cloudy Or Muddy Water, R C. Gorman Jan 1962

Water For Agriculture. 4. Clearing Cloudy Or Muddy Water, R C. Gorman

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

Water made cloudy by finely divided clay, silt or organic matter in suspension may be cleared by simple chemical treatment.

The selection of a satisfactory treatment is often a matter of practical testing.


Plan For The Pilbara, Department Of Agriculture, Western Australia Jan 1962

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.


Winter Management Of Salt Land, T C. Stoneman Jan 1962

Winter Management Of Salt Land, T C. Stoneman

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

WITH the emergence of crops, many farmers will again be seeing bare patches or thin stands of cereals due to salt accumulation.

Would these areas be better left out of cultivation, or should they have been planted to saltbush and bluebush?


Farm Flora Sancturies, Robert Dunlop Royce Jan 1962

Farm Flora Sancturies, Robert Dunlop Royce

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

NOW that several species of native plants have become totally extinct and many more are becoming rare almost to the point of extinction, interest in the scientific and aesthetic potential of the West Australian flora is awakening.


Loss Of Structure In Wheatbelt Soils, T C. Stoneman Jan 1962

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.


Care Of Autumn And Winter Tomato Crops, W H. Kooyman Jan 1962

Care Of Autumn And Winter Tomato Crops, W H. Kooyman

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

I N recent years there has been a considerable increase in plantings of autumn and winter tomatoes in the Perth metropolitan market garden area.


Soft Water For Dairy Cleaning, Department Of Agriculture, Western Australia Jan 1962

Soft Water For Dairy Cleaning, Department Of Agriculture, Western Australia

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

CLEAN utensils are essential for the production of high quality dairy products.

Cleanliness of dairy equipment depends a lot on how efficiently the detergent can do its job.


Water For Agriculture. 1. Water For Agricultural Purposes In Western Australia, Department Of Agriculture, Western Australia Jan 1962

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.


Investment Theory And Forest Management Planning, Barney Dowdle Jan 1962

Investment Theory And Forest Management Planning, Barney Dowdle

Yale School of the Environment Bulletin Series

No abstract provided.


Light Lands In Western Australia. 1. History And Future Prospects, F L. Shier Jan 1962

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.


Suspended Solids (1961), Walter A. Lawrance Nov 1961

Suspended Solids (1961), Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.


Press Report (1961), Walter A. Lawrance Nov 1961

Press Report (1961), Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.


Water Conservation On The Farm, John W. Lewis Jan 1961

Water Conservation On The Farm, John W. Lewis

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

SMALL scale conservation of water for agricultural use is becoming increasingly important throughout Australia.

As land development intensifies, it is natural that farmers turn to more dams and earthen tanks for stock water and irrigation.

Adequate water is essential to supply the carrying capacities made possible by improved pastures, and where greater quantities of water can be stored, fodder crops, pastures, orchards and vegetables can be irrigated.


Bluebush Seed : Cleaning, Drying And Storing, C V. Malcolm Jan 1961

Bluebush Seed : Cleaning, Drying And Storing, C V. Malcolm

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

BLUEBUSH (Kochia brevifolia) is a perennial plant which occurs naturally in Western Australia.

In the past it has attracted little attention, but in recent years it has created interest as a highly nutritious and salt tolerant plant well adapted to certain salt affected soils in the wheatbelt.

A previous article (Bulletin No. 2630) by Smith and Malcolm drew attention to its use. One of the problems in establishing bluebush is to obtain seed supplies.


Good Pasture On A Problem Soil, R Sprivulis Jan 1961

Good Pasture On A Problem Soil, R Sprivulis

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

The acid peaty sands of the South-West have always been problem soils, and are often considered useless.

But, by following recommended establishment methods, farmers like Mr. F. E. Bellanger, of Nornalup, have shown that it can carry valuable pasture.


Reclaim Salty Soils With Bluebush, Department Of Agriculture, Western Australia Jan 1961

Reclaim Salty Soils With Bluebush, Department Of Agriculture, Western Australia

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

BLUEBUSH (Kochia brevifolia) is an Australian plant which can produce good yields of excellent feed when grown on grown well drained salty soils in the 12 to 15-inch rainfall districts of Western Australia.


Potatoes Sprinkler Irrigated From The Collie River, John W. Lewis Jan 1961

Potatoes Sprinkler Irrigated From The Collie River, John W. Lewis

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

THE highly productive soils of the flats along the Collie River at Roelands are an important source of many of our summer grown potatoes in this State.

Large areas are planted year after year, the record being held by Mr. Clarry Cox of Roelands, who has planted potatoes on the same seven acres every season since 1922.


Flooding Of Salt Land, C V. Malcolm Jan 1961

Flooding Of Salt Land, C V. Malcolm

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

Many farmers have expressed concern and some have gone to considerable expense in trying to alleviate flooding problems on salt affected land.

Some consideration will be given here to flooding, its causes, effects on salt encroachment, methods of prevention and alleviation.


Natural Paddocks Help Soil Conservation, G W. Spencer Jan 1961

Natural Paddocks Help Soil Conservation, G W. Spencer

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

ON most farms, particularly in the cereal and sheep districts, the paddocks as we know them are fenced off into neat squares or rectangles.

The original fencing was done in such a way that the paddock layout, as well as the fences, completely disregards the topography or natural features of the land. Often this has encouraged soil erosion.

In properly laid out paddocks there should be a very close relationship between the natural features of the farm, the fence plan, and soil conservation.


Fossils And Farmers, D Merrilees Jan 1961

Fossils And Farmers, D Merrilees

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

The West Australian Museum is looking for fossil remains from the Pleistocene age, the period of geological time when Europe was covered with ice.

Little is known of what the Australian continent was like at that time, and the Museum hopes, by collecting as many fossil remains as possible, to get a better picture of Australian conditions at that time.

It is also hoped to discover more about the ancestors of our present marsupial fauna.

Farmers may be able to make a valuable contribution to the present knowledge of this period by forwarding suspected fossil remains to the Museum. Here …


Palatability Of Forage Plants In North-West Sheep Pastures, R H. Collett Jan 1961

Palatability Of Forage Plants In North-West Sheep Pastures, R H. Collett

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

A DECLINE in carrying capacity has occurred in large areas of the Pilbara district of the North-West, due to the decrease in palatable plants and the increase in unpalatable ones.

The relative palatability of the various species to sheep is therefore a matter of considerable importance to pastoralists.


Soil Salinity In Western Australia, Stanley Thomas Smith Jan 1961

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.)