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Water For Agriculture. 6. Control Of Algae In Water Supplies, R C. Gorman

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

ALGAE are primitive forms of plant life that are common and normal in surface waters. They are fonnd in every water supply exposed to sunlight.

Their presence is not normally detectable until there are enough of them to make their presence obvious.

Odor Report, Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

Press Reports, Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

Odor Report, Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

Press Reports, Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

Development Of Water Quality Criteria For Aquatic Life, Clarence M. Tarzwell

United States Environmental Protection Agency: Publications

It is now recognized that water pollution is an important problem, that it becomes more widespread and serious as population and industry expand, and that something must be done if aquatic life resource are to be saved and their productivity maintained. In the past there has been a great deal of uncertainty in approaching this situation and a general lack of understanding of the details and ramification of the overall problem. In the efforts for the abatement of pollution, only a few clearcut objectives have been established. Knowledge is lacking as to what the objectives should be. There is still …

Concluding Remarks Of Appreciation With Comments On Histoplasmosis And Cryptococcosis, Philip J. Spear

Vertebrate Pest Conference Proceedings: 1st (1962)

The record of this meeting will stand as a permanent tribute to Dr. Walter Howard and his associates. It should remind them for years to come of their worthwhile contribution in conceiving, organizing, promoting, and handling the details of this first Vertebrate Pest Control Conference. Those of us privileged to attend will be grateful for the opportunity to enlarge our acquain¬tance with the workers in the vertebrate pest control field, and to share in this exchange of information. The National Pest Control Association, whose members provide among other services, control of many vertebrate pests, draw information and guidance from many …

Infectious Disease Hazards To Pest Control Operators, Paul Arnstein Dvm, Mph

Vertebrate Pest Conference Proceedings: 1st (1962)

One of the primary reasons for controlling most vertebrate pests is the role these creatures play as links in the infection chain of certain agents pathogenic to man. It is reasonable to assume that the persons engaged in the eradication or removal of pests are at some risk of contacting zoonoses - diseases transmissible from animals to man. Unfortunately, histories or epidemiological data of occupational infections among pest control operators are not available; perhaps this society may become a future assembly point for statistics in this field. The hazards therefore have to be approached theoretically: diseases known to be associated …

Meeting The Meadow Mouse Menace, William D. Fitzwater

Vertebrate Pest Conference Proceedings: 1st (1962)

The orchardist has many ways to lose money but one of the best is to ignore his mouse problem. This apparently insignificant, short-tailed little rodent by his unobtrusive but systematic attacks on the growing tissue of trees can be very expensive. The Indiana Extension Horticulturist has stated that mice are the number one cause for orchardists going out of business in recent years in that State. Moreover, the problem is not a recent one as a questionnaire to county agricultural agents in 1924 (Davis, 1925) showed that field mice were even then considered a problem in 40 per cent of …

Mole And Woodrat Control, Rex E. Marsh

Vertebrate Pest Conference Proceedings: 1st (1962)

MOLES: In regions where moles thrive, lawns in golf courses, parks, cemeteries and home yards are often made unsightly by dirt mounds and ridges pushed up by the active little animals. In cultivated land, moles may cause consider¬able economic loss through their burrowings. Mole control can be divided into six basic categories: exclusion, repellents, gases, toxic baits, reduction of food supply, and trapping. Un¬changed over the years, trapping is still considered the most reliable of all methods of control, however, under certain conditions or situations, the other methods of control may be extremely useful. WOOD RATS: The native wood rat …

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Yale School of the Environment Bulletin Series

No abstract provided.

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

Walter Lawrance Papers

No abstract provided.

Press Report (1961), Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.