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Articles 42661 - 42690 of 43064
Full-Text Articles in Physical Sciences and Mathematics
Instructions For Contributors, Academy Editors
Instructions For Contributors, Academy Editors
Journal of the Arkansas Academy of Science
No abstract provided.
Some Results With Nitrogen Fertiliser On Cereals At Esperance Plain Research Station, William John Toms
Some Results With Nitrogen Fertiliser On Cereals At Esperance Plain Research Station, William John Toms
Journal of the Department of Agriculture, Western Australia, Series 4
ON newly-cleared land at Esperance Plain Research Station the use of sulphate of ammonia on cereals has proved profitable over a number of seasons.
The response to sulphate of ammonia varies markedly with the season.
Contour Banks For Filling Dams, B A'B Marsh
Contour Banks For Filling Dams, B A'B Marsh
Journal of the Department of Agriculture, Western Australia, Series 4
A LTHOUGH contour banks have been used in this State for many years to lead water into earth tanks or "dams," it is only comparatively recently that the idea has become really popular.
Thanks to the publicity given to this matter during the last three years many farmers now know that dams may be filled by contour banks, but because they do not know the finer points of the method, they are apt to mislead themselves into thinking that their territory is unsuitable for putting it into practice.
Rabbit Control In 1960, C Marshall
Rabbit Control In 1960, C Marshall
Journal of the Department of Agriculture, Western Australia, Series 4
IN the year 1859, an enthusiastic sportsman in Victoria took delivery from the clipper "Lightning" of a small consignment of wild European rabbits which he joyfully released on his estate at Barwon Park, near Geelong, in order to assure himself of some rough shooting.
He was not the only rabbit importer on record—tame rabbits were brought into Australia before and after 1895 and doubtless there were other importations of the wild rabbit—but he is generally credited—or discredited—with having triggered off the rabbit plague.
Drought Feeding Of Sheep, Laurence C. Snook
Drought Feeding Of Sheep, Laurence C. Snook
Journal of the Department of Agriculture, Western Australia, Series 4
WHEN this talk on drought feeding of sheep was suggested conditions were very serious over large tracts of pastoral country.
Many stations had not received a worthwhile rain for over 12 months and it appeared that grazing animals would have to be fed if they were to survive.
Requests have been received for advice on the cheapest way to keep sheep alive. Drought feeding in any form is a gamble. There is always the risk that the stock will eventually die despite the consumption of much costly feed.
It follows that if an effort is to be made to save …
Reclaiming Salt Land With Bluebush, Stanley Thomas Smith
Reclaiming Salt Land With Bluebush, Stanley Thomas Smith
Journal of the Department of Agriculture, Western Australia, Series 4
IN Western Australia there are approximately a million acres of salt land, some of which is a serious economic problem to individual farmers, unfortunate enough to have the major portion of their properties affected by salt encroachment.
Feeding Pickled Wheat To Pigs, Department Of Agriculture, Western Australia
Feeding Pickled Wheat To Pigs, Department Of Agriculture, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
INQUIRIES are frequently received from farmers asking whether it is safe to feed pickled wheat to pigs, and if so, the quantities which would be suggested.
Until very recently there was no experimental information on the safety or possible dangers of these wheat pickling agents, but feeding trials completed last year at the Animal Health and Nutrition Laboratory, Nedlands, have provided some of the answers to these questions.
A Useful Farm-Made Roller, V E. Western
A Useful Farm-Made Roller, V E. Western
Journal of the Department of Agriculture, Western Australia, Series 4
A very serviceable compacting roller can be constructed at little expense by using discarded truck tyres.
The roller described here has an overall width of 5 ft. 3 in. and carries seven 9.00 x 24 semi-trailer tyres which had been discarded when the treads were worn smooth.
Bluebush Seed Supplies, C V. Malcolm
Bluebush Seed Supplies, C V. Malcolm
Journal of the Department of Agriculture, Western Australia, Series 4
A GREAT deal of publicity has been given of late to the value of bluebush (Kochia brevifolia) as a plant for some types of salt-affected land, particularly in the drier parts of the wheatbelt.
Obtaining seed supplies can be a problem, but fortunately large amounts of seed are not required since once a few bushes are established they will spread seed over the intervening areas.
Thus rates of 1 to 2 lb of seed per acre have been found quite satisfactory.
Black Spot Of Tomatoes, R F. Doepel
Black Spot Of Tomatoes, R F. Doepel
Journal of the Department of Agriculture, Western Australia, Series 4
BLACK SPOT DISEASE IS THE MOST SERIOUS FOLIAGE BLIGHT OF TOMATOES IN THIS STATE. IN SEASONS FAVOURABLE TO ITS DEVELOPMENT SEVERE DEFOLIATION AND FRUIT ROTTING ARE EXPERIENCED.
IN Western Australia, black spot, which is also known as early blight and target spot, is a troublesome disease of long standing. It is caused by the fungus Alternaria solani which also attacks potatoes.
The Development Of Western Australian Sand Plain Soils For Agriculture, Richard Philip Roberts, F. L. Shier
The Development Of Western Australian Sand Plain Soils For Agriculture, Richard Philip Roberts, F. L. Shier
Journal of the Department of Agriculture, Western Australia, Series 4
IN a recently published economic survey of the Australian wheat growing industry, it was reported that nearly two-thirds of the farms surveyed in Western Australia were located on lateritic "sand plain."
As a random selection was made of the eighty farms that were visited it is reasonable to conclude that a similar proportion of all the State's wheat producing farms are on that type of country.
This constitutes a remarkable change from the earlier days of wheat belt settlement when the sand plain soils were regarded as virtually useless and by-passed for development.
It is the purpose of this article …
Kimberley Research Station : A Progress Report, Department Of Agriculture, Western Australia
Kimberley Research Station : A Progress Report, Department Of Agriculture, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
INTEREST in the agricultural potential of the Kimberley region in Western Australia dates from its early exploration and settlement in the last century.
Several farming development schemes were considered for the area, but were never implemented.
This could be mainly attributable to lack of knowledge of agricultural potentialities, limitations of the local environment and ways of exploiting the local environment.
Up to the present the economy of the region is almost entirely based upon the extensive production of beef and to a lesser extent, wool.
Overcoming Stock Watering Problems In The Kimberleys, B Swan
Overcoming Stock Watering Problems In The Kimberleys, B Swan
Journal of the Department of Agriculture, Western Australia, Series 4
ONE of the ever-present problems of the pastoral areas is that of providing: watering-points in reasonably close proximity to the grazing areas.
All too frequently, the country on the river frontages and that in the vicinity of the water-holes becomes eaten out and although there may be ample feed on other portions of the run, it is too far distant from the available water to be effectively utilised.
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.
Wild Life In A Modern Age, Clee Francis Howard Jenkins
Wild Life In A Modern Age, Clee Francis Howard Jenkins
Journal of the Department of Agriculture, Western Australia, Series 4
THE present human population of the earth is estimated at about 2 1/2 thousand million, and reliable sources consider that this figure will be doubled by the year 2000.
Although the pessimistic forecasts of Malthus have not yet come true, it is obvious that the world's food requirements, must lead to increased exploitation of land and other primary resources, with consequent repercussions on all forms of wild life.
Weed Research. 7. Weed Control Around The Yard, Geoffrey A. Pearce
Weed Research. 7. Weed Control Around The Yard, Geoffrey A. Pearce
Journal of the Department of Agriculture, Western Australia, Series 4
MANY farmers and city householders have weed problems around houses and sheds which can be readily overcome by treatment with appropriate herbicides.
The risk from fire through weeds and unslightly growth can easily be removed and an area free of any plant growth can be maintained with little effort for a considerable period.
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.
Water Usage Trials With Bananas On The Gascoyne, W M. Nunn
Water Usage Trials With Bananas On The Gascoyne, W M. Nunn
Journal of the Department of Agriculture, Western Australia, Series 4
THE banana industry at Carnarvon is an unusual one by most agricultural standards.
Normally a tropical plant liking relatively humid conditions in a high rainfall, the banana is cultivated at Carnarvon in an area of extremely low rainfall and with relatively low humidity throughout the year.
Water is pumped to irrigate the crop from the sands of the Gascoyne River bed or from bores adjacent to the river course.
List Of Registered Fertilisers : 1959-60, H G. Cariss
List Of Registered Fertilisers : 1959-60, H G. Cariss
Journal of the Department of Agriculture, Western Australia, Series 4
TN accordance with the provisions of the Fertilisers Act, 1928-1955, it is required that—with the exception of bulk sales to a manufacturer and those made in accordance with a buyer's written prescription—all fertilisers sold are required to be registered annually, the registration year being from November 1 to October 31 following.
The list of fertilisers registered for the year commencing November 1, 1959, is set out herewith in tabular form.
Facts And Figures For The Man On The Land, J A. Mallett
Facts And Figures For The Man On The Land, J A. Mallett
Journal of the Department of Agriculture, Western Australia, Series 4
FARM or station life calls for the exercise of so many different skills that the farmer or pastoralist is usually an accomplished handyman.
For those whose schooldays are far behind them however, the most difficult part of many tasks is that of dealing with the calculations involved, and it is hoped that these facts and figures will serve as a handy aid to those whose mathematical ability has not kept pace with their manual and technical skill.
Application Of Palynology To The Study Of Tertiary Rocks Of The Coastal Plain Of Arkansas, Eugene L. Jones
Application Of Palynology To The Study Of Tertiary Rocks Of The Coastal Plain Of Arkansas, Eugene L. Jones
Journal of the Arkansas Academy of Science
No abstract provided.
Commercial Vegetable Growing In The Perth Metropolitan Region, L T. Jones
Commercial Vegetable Growing In The Perth Metropolitan Region, L T. Jones
Journal of the Department of Agriculture, Western Australia, Series 4
MARKET gardening with sprinkler irrigation on deep sandy soils around Perth is really a commercial application of hydroponics or sand culture principles.
Provision of a continuous and adequate supply of nitrogen is the major problem. Peat swamps scattered among the sandy areas have higher natural fertility. However, their common problems are drainage, acidity ("sourness"), salt and various special soil deficiencies. Over-liming of acid swamps can cause new problems.
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.
Method Of Teaching Basic Crystallography To The Beginning Student, Robert J. Willard
Method Of Teaching Basic Crystallography To The Beginning Student, Robert J. Willard
Journal of the Arkansas Academy of Science
No abstract provided.
Studies In The Mulga Pastoral Zone. 1. The Grazing Of Wandarrie Grass Associations, D G. Wilcox
Studies In The Mulga Pastoral Zone. 1. The Grazing Of Wandarrie Grass Associations, D G. Wilcox
Journal of the Department of Agriculture, Western Australia, Series 4
THE establishment of the Wiluna office of the North-West Branch marked the commencement of a series of investigations into the pastures of the mulga zone.
Unlike the agricultural areas where a fund of knowledge exists on the growth habits of the pastures, the pastures of this area were completely unknown.
The preliminary investigations had to be aimed at forming an understanding of the reactions of the various plants to rain, to temperature and seasonal conditions and to grazing in an area of extremely low rainfall reliability.
Nasa News, Space Enterprises, Inc.
The Weightless Man, Herbert D. Stallings, Siegfried J. Gerathewohl
The Weightless Man, Herbert D. Stallings, Siegfried J. Gerathewohl
Space Journal
No abstract provided.
Front Matter, Space Enterprises, Inc.
Free Information, Space Enterprises, Inc.
Meteorites, Space Enterprises, Inc.