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West Midlands Development : Fertilizers For The West Midlands, Department Of Agriculture, Western Australia

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

FARMING the light lands of the West Midland area would be impossible without fertilisers.

Most light land areas are inherently very low in phosphate and also require nitrogen.

The nitrogen can come from fertiliser for cereal crops, or can be built up by growing appropriate legume pasture plants such as clovers and lupins.

West Midlands Development : Poison Plants In The West Midlands, T E H Aplin

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

TOXIC plants have caused considerable economic loss to stock raisers since the early days of settlement in Western Australia.

Although much is now known of the toxic materials contained in such plants, and although most of the plants have been thoroughly publicised, losses are still occurring in many areas.

Fertiliser Responses With Newly Planted Apple Trees, N H. Shorter

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

AN outstanding response to phosphate and a worthwhile response to nitrogen have been obtained in the Donnybrook area on a new orchard site on the property of Mr. A. Cross of Argyle.

Amsinckia Or Yellow Burr-Weed (Amsinckia Spp.), G R W Meadly

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

YELLOW BURR-WEED is widely established in the Wimmera and Mallee districts in Victoria, presumably introduced with fodder brought to this country from the United States about 1914.

It is a problem in Oregon and other north west wheat areas of America.

The weed is also widespread in New South Wales, being most troublesome in the wheat-growing sections of the Riverina. It is not established to the same extent in South Australia and Queensland.

The recent discovery of areas infested with yellow burr-weed at Merredin prompted the Agriculture Protection Board to declare it a primary noxious weed for Western Australia.

Concrete In Dairies, D Roger Buchanan

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

PRIME requirements for exposed concrete surfaces in dairies are that they should be easily cleansed and should not deteriorate in contact with milk and milk products.

In milking stalls, animal races and on loading platforms hardwearing surfaces which offer good foothold are also necessary.

West Midlands Development : The Economics Of New Land Development, I J. Moncrieff

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

THE economics of new land development cannot really be separated from the financial aspects.

However, financing development is such a personal business that for general advisory purposes the distinction must be made.

For this reason, the article which follows largely avoids the financial side and is devoted to a consideration of some of the economic factors involved in the development of new land in this area.

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.

The Outlook For Wool, Lamb And Beef, Department Of Agriculture, Western Australia

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

WOOL and fat lambs have been traditional products of farms in the wetter parts (20 inches of rainfall and above) of Western Australia's agricultural areas.

The prices for both these products are causing corncern and some farmers have already changed to beef production.

This article discusses the future prices for wool, fat lambs and beef.

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.

Stubble Burning Helps Control Wimmera Rye Grass, M G. Mason, W. J. Toms, J. W. Gartrell

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

In a trial at Wongan Hills Research Station, burning of wheat stubbie in a continuous cropping system, helped to control Wimmera Rye Grass in the crop and resulted in yields up to 25 bushels an acre higher than where the stubble was ploughed in.

WIMMERA RYE GRASS is the most widely used annual pasture grass in the agricultural areas of Western Australia.

It has proved valuable for sheep feed where legume pastures are not grown.

However, it has often proved a serious weed in cereal crops, causing large yield reductions.

Round Worms : Important Parasites Of Pigs, F C. Wilkinson

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

ROUND WORMS are usually found in the small intestine of pigs. The adults average six to 10 inches long. They are creamy-white and cylindrical in shape, tapering to a point at both ends.

Barley Diseases In Western Australia, W A. Shipton, W. R. Tweedie

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

BARLEY DISEASES caused by pathogenic organisms are capable of reducing yields considerably.

The recognition of disease is important so that control measures can then be taken at the appropriate time.

New Varieties Top 1967 Yield Tests, H M. Fisher

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

LARGE gains can result from using improved cereal varieties and in recent years activity in breeding varieties adapted to local conditions has increased.

The varieties available and their suitability for different areas and conditions need constant review.

Sources Of Nitrogen For Cereals : Their Characteristics And Costs, M G. Mason

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

Generally similar results may be expected from all the sources of nitrogen available for cereal growing.

The unit nitrogen price and the convenience of use of each fertiliser in the particular situation should be taken into account in deciding which fertiliser to use.

THE first point to consider when deciding which nitrogen fertiliser to use for wheat growing is the effectiveness of the nitrogen source in increasing crop yield. Second, the cost per unit of nitrogen must be considered.

The convenience of using a particular source in a particular situation is also important and greater convenience may offset some cost …

African Horse Sickness, M R. Gardiner

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

THE viral disease, African horse sickness has become the most menacing contagious disease of equine animals since bacterial and protozoan diseases of the horse, such as glanders and dourine, have declined throughout the world.

The Role Of Adventitious Reinforcement In Operant Discrimination, Alan Kamil, John W. Davenport

Avian Cognition Papers

Rats were trained in 2 S^D-S^Δ discrimination experiments in which the effects of an S^D-postponement contingency during S^Δ and temporal regularity of S^Δ duration were assessed. Experiment I showed that discrimination is markedly facilitated by the presence of an S^D-postponement contingency of either fixed or variable duration. Experiment II showed that variable-duration S^Δ periods in a noncontingent schedule can also greatly enhance formation of an operant discrimination. These effects were attributed to differences in the probability of adventitious reinforcement of S^Δ behavior by S^D events.

Whole Issue Nebraska Bird Review (Jan 1968) 36(1)

Nebraska Bird Review

TABLE OF CONTENTS

1967 (Forty-second) Spring Migration and Occurrence Report ...................2

Notes ...................10

Swans ...................16

1967 Fall Field Day...................19

Pritchard Designs 1968 "Duck" Stamp ...................20

In Memoriam - Leroy M. Gates ...................20

Seasonal Occurrence Of The Pelagic Copepoda In Mississippi Sound, Thomas D. Mcilwain

Gulf and Caribbean Research

Collections of planktonic copepods from Mississippi Sound were made from January 1965 to March 1966. The following fifteen free­ living copepods were identified: Eucalanus pileatus, Paracalanus par­vus, Centropages hamatus, Centropages furcatus, Temora stylifera, Temora longicornis, Labidocera aestiva, Labidocera species, Acartia tonsa, Oithona brevicornis, Oithona species, Oncaea venusta, Cory­caeus species, Sappharina nigromaculata and Euterpina acutifrons.

It was found that there is a definite seasonal distribution of cope­pods in Mississippi Sound with peak populations of copepods occu­rring in the spring, summer and fall.

Weight Gain And Carcass Measurements Of Pigs From Gilts Fed Adequate Vs. Protein-Free Diets During Gestation, W. G. Pond, J. A. Dunn, G. H. Wellington, J. R. Stouffer, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

Fifty-two weanling pigs from six litters(Pond et al., 1968) were fed a standard 18% protein corn-soybean meal diet from weaning to slaughter. The six litters were from gilts paired on the basis of parturition date so that one gilt fed the control diet and one fed the “protein-free” diet (0.5% protein) from week 4 of pregnancy to parturition made tip each pair. Each dam was fed the control diet throughout lactation and nursed one-half of her own litter and one-half of a pairmate’s litter resulting from reciprocal transfer of one-half of each litter at birth. Individual bodyweight gains and feed …

Relationships Among The Parameters Of Milk Production, Constituent Production, And Constituent Percentage, J. W. Wilton, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

A method of finding the parameters pertaining to one of the variables of milk production, constituent production, and constituent percentage when the parameters pertaining to the two other variables are known is presented. The method is based on the expectation of products of random variables. This method and the delta approximation method are compared to sampling estimates from simulated data.

Prairie Plants And Their Environment, J. E. Weaver

Papers of John E. Weaver (1884–1956)

When, in 1916, the writer came to the University of Nebraska as a young instructor, he came with a background that well fitted him for studies in the field. His research in the grassland and adjoining forests of southeastern Washington and adjacent Idaho had been completed and a fine acquaintance had been made with methods of examining the prairie both above and below ground level (Weaver, 1915, 1917). Similar studies in the area between the Missouri River and the Rocky Mountains were now to be made, and these have resulted in many new investigations that are of both scientific and …

The Indian Mynah, John L. Long

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

THE Common or Indian Mynah (Acridotheres tristis) inhabits Afghanistan, Baluchistan, southern Russian Turkestan, India, Ceylon and the Andaman Islands.

Snail Investigations : A Progress Report, G D. Rimes

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

Experimental baits and sprays have given promising control of snails in cereals and pastures in the Geraldton-Dongara districts.

The problem of harvesting infested wheat crops has been overcome by attaching a specially designed rake in front of the header ccmb to remove snails from the plants.

Worms In Sheep. 4. Drenches For Treatment And Control Of Worms In Sheep, W A. Halhead

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

PREVIOUS articles in this series have described the species of worms affecting sheep in Western Australia, their life histories and the factors which lead to the seasonal rise and fall in worm burdens.

A programme of strategic (preventative) drenching has been outlined which is based on a knowledge of these seasonal changes in worm burdens.

Bulletin No 3547 - Kimberley Research Station - Progress Report 1968, Western Australian Department Of Agriculture

Bulletins - 3000 - 3999

Rivers flowing to the Gulf of Carpentaria and the Timor Sea have been estimated by hydrologists to carry about three times the water transported annually over the Murray drainage system and the South Eastern slopes which, together, comprise the highly settled agricultural areas of South Eastern Australia.

In 1945, the North Australian Development Committee recommended research in the Ord-Victoria rivers region as a first step toward ultimate agricultural development of this Northern potential and, in 1946, the Kim- berley Research Station commenced operations under the joint control of the Commonwealth Scientific and Industrial Research Organization and the Western Australian Department …

Cereal Eelworm : A New Disease Of Cereal Crops In The Geraldton Area, R J. Parkin, Olga M. Goss

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

CEREAL eelworm (Heterodera avenae) is a potentially serious disease of crops which was seen in the Geraldton area for the first time in the 1966-67 season.

It was first identified in this State at Beverley in 1958 and later near Northam in 1963.

The Geraldton region has been the only area found to be affected since.

The disease was identified on eight properties in 1966-67, and a further ten properties in 1967- 68. There are indications that many more properties could be affected in varying degrees.

Report On Trials Conducted In 1978 And 1969 By Plants Research Division And Wheat And Sheep Division, J W. Gartrell

Experimental Summaries - Plant Research

In the late 1920's the seven million acres of virgin land

between Hyden and Salmon Gums were considered for settlement under

the "3,500 farms scheme" because it constituted "practically the

only large area of wheat lands in a suitable climatic zone not then

settled in Australia" (Teakle 1939).

Common Heliotrope : (Heliotropum Europaeum L.), G R W Meadly

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

THE Borage family, to which common heliotrope belongs, includes several other plants which are troublesome weeds in Australia.

Patersons curse is widespread in several States, yellow burr-weed is a problem in wheat growing areas, particularly in Victoria, and corn gromwell also causes concern to some wheat farmers.

Some Aspects Of The Age And Growth Of The Longear Sunfish, Lepomis Megalotis, In Arkansas Waters, Edmond J. Bacon Jr., Raj V. Kilambi

Journal of the Arkansas Academy of Science

No abstract provided.

A Study Of Some Physico-Chemical Changes In A Spread-Type Dairy Product During Storage, Alfredo E. Gudeikis

Electronic Theses and Dissertations

In the Dairy Science Department at South Dakota State University a new dairy spread product has been developed which has only 50% of the fat content of butter or margarine and 60% of the calorie value of the higher fat products. It is increased in solids content with nonfat milk solids. The purpose· of developing this product was to obtain a new outlet for milk constituents; desirably it was to be one that could regain the market sales which were lost by butter and are now enjoyed by the margarines. The high price of butter compared with the substitute product …