Comparative Nutrition Commons^™

The Phosphorus Fertilisers : How They Compare, Walter Jacob Cox

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

ALTHOUGH 'double' or 'concentrated' superphosphate was first commercially manufactured in 1872 it was not until the 1950's that it became a major commercial fertiliser. In 1965 it accounted for about 15 per cent, of the world production of phosphatic fertilisers.

N-P Compound Fertilisers, M G. Mason, W. J. Cox, R. N. Glencross

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

FARMERS were able to buy the two compound fertilisers N-P Compound Fertiliser 28:14 and N-P Compound Fertilser 24:24 in the 1967 season.

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.

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.

Trials With Urea And Anhydrous Ammonia For Wheat Growing, M G. Mason

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

THE recent subsidy on nitrogenous fertilisers has greatly reduced their price to farmers. This, and farmers' increasing awareness of the benefits of application of nitrogen to cereals, has led to a substantial increase in the use of these fertilisers.

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 …

Rates Of Superphosphate For Cereal Grain Production In The Under 20 Inch Rainfall Areas, Walter Jacob Cox

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

EVERY year farmers use large quantities of superphosphate with cereal crops to overcome the inherent phosphate deficiency of West Australian soils.

The increase in the average rate used by farmers reflects the increasing amount of new land being cropped.

Good seasons and favourable economic conditions may also have influenced super rates.

Winter Beef Production Trial : Wongan Hills Research Station, D J. Barker, H. G. Cariss

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

IN 14-inch rainfall districts most rainfall occurs between May and October. It is d i f f i cult to keep beef animals fattening on summer dry pastures but such areas do have a ready supply of locally grown cereals.

Using these materials as the basis of a supplement it is possible to market prime baby-beef by June-July.

The higher prices obtained for this "winter" beef more than offset the cost of supplementary feed.

Drilled Versus Topdressed Superphosphate For Cereal Production, A Loutit, P. Stallwood, W. J. Cox

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

CEREAL growers in Australia usually use a drill or combine to apply their seed and superphosphate in one operation.

However, during the last few years, there has been a rapid increase in the amount of super broadcast bafore seeding.

Maintenance Phosphorus And Sulphur For Pastures : Progress Report, Walter Jacob Cox

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

PASTURE IMPROVEMENT has been based on topdressing with superphosphate, which supplies sulphur as well as phosphorus.

In the past, all the benefit due to superphosphate was attributed to the phosphorus.

It is only in recent years that the importance of the sulphur has been appreciated.

Rates Of Superphosphate For Pasture And Crop Production In The Salmon Gums District, R N. Glencross, W. J. Cox

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

DURING the last few years large areas have been released for cereal and pasture production in the southern part of the Shire of Dundas and the northern part of the Shire of Esperance.

Changes in land use since 1962 are summarised in Table 1.

Beef Production In A 14 Inch Rainfall District, D J. Barker, H. G. Cariss

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

Progress report on a farm scale beef-raising investigation at the Department of Agriculture's Wongan Hills Research Station.

A SMALL herd of beef cattle was established at Wongan Hills Research Station in 1964 and the first crop of calves was dropped in the autumn of 1965. The calves' growth rates were recorded and they were marketed as 18-month-old steer beef in November, 1966.

Feeding Urea To Dairy Cows, R A. Bettenay

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

IT has been known for some years that the ruminant animal, through the agency of microflora in the rumen, has the ability to use urea as a source of nitrogen, and to convert some of this to protein.

A Comparison Of Nitrogenous Fertilisers For Cereals, M G. Mason

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

THE use of nitrogenous fertilisers has become an important aspect of cereal growing in many districts and farmers now have a number of sources of nitrogen from which to choose.

Fertilisers For The Wheatbelt, William John Toms

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

A review of fertiliser research findings and recommendations for fertiliser applications to crops and pastures in the 12 to 15 inch rainfall areas.

NOT long ago, fertiliser to the cereal grower meant only superphosphate for cropping. Today, phosphorus, sulphur, nitrogen, copper, zinc and molybdenum are all important, and the needs of improved pastures must be considered as well as those of cereals.

A Guide To Pig Feeding, P Mcnamara

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

FOOD is by far the greatest cost in pig production, accounting for between 60 per cent, and 75 per cent, of the total cost, and for this reason it is important that the basic principles of feeding be understood.

Cattle Stocking Rates In A Higher Rainfall Area, R Sprivulis

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

THE 1965 Pardelup cattle stocking rate trial was conducted with Hereford cross yearling steers on annual pasture of Mt. Barker sub. clover, Wirnmera ryegrass and various volunteer annual species.

This was topdressed with 186 lb. of superphosphate per acre in mid March.

Good Management For The Springers Pays Dividends, J Y. Langdon

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

This article gives a striking example of the advantages of calving cows in good and rising condition—and explains why condition around calving time is so important.

ALTHOUGH most farmers know that cows calving in good and improving condition will give higher yields than those calving in poor condition, few use this knowledge to improve the production from their cows.

Stocking Rates On Cyprus Barrel Medic In The Northern Wheatbelt, R J. Parkin

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

IN May 1963, some three weeks after germination, a 4th year stand of Cyprus barrel medic was stocked with Merino wethers.

These same sheep are still grazing the area after three years.

Meadow Hay For The Dairy Herd, F E. Ryan

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

CONSERVATION is the basis of progress in dairy farming and the major form is meadow hay, but unfortunately relatively few dairy farmers give enough attention to the quality and quantity of this important feed.

The First Year Of A Cattle Stocking Rate Trial At Pardelup, R Sprivulis

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

AS a first step towards the study of pasture utilisation by cattle, a simple trial was commenced at the Pardelup Prison Farm in 1964.

The trial is carried out with Poll Hereford cross steers set stocked on Mt. Barker subterranean-clover and Wimmera ryegrass pasture.

It will be repeated for several seasons.

Continuous Grazing On Rose Clover At Northampton, R J. Parkin

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

BECAUSE of its upright growth habit, it is often thought that rose clover may require some form of specialised grazing management.

It has also been said that the sheep find the plant and in particular the seed head, undesirable in the dry stages.

However, more recent observations refute this (Bailey 1966). The present commonly-grown strains of rose clover are later flowering generally than the medics or Geraldton subterranean clover and stay green later in the season.

Heavy Rate Set Stocking : Esperance Downs Research Station, R J. Doyle

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

THIS article describes a stocking rate demonstration in one paddock at Esperance Downs Research Station, using Merino wethers.

Since December 1961, the area has supported 530 to 540 Merino wethers under continuous grazing.

More Sheep Per Acre, Department Of Agriculture, Western Australia

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

In the late 1950's agricultural scientists in Western Australia became convinced that much of the improved pasture in the agricultural areas of the State was going to waste.

The results of the early trials resulted in many farm demonstrations of higher carrying capacities on improved pastures in southern agricultural areas.

Stocking Rates On Light Land : Wongan Hills Research Station, R J. Lightfoot, W. L. Mcgarry

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

THE two most important things that determine the rate of return on invested capital in Merino sheep breeding and grazing are the stocking rate and lambing percentage.

Rate Of Stocking, Rate Of Fertiliser In The Chapman Valley, R J. Parkin

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

THE Chapman Valley embraces a relatively small area of country, following generally the course of the Chapman River.

The Chapman Valley proper extends from just north-east of Geraldton to Nanson, Nabawa and Naraling and includes on its fringes, areas of Narra Tarra, Moonyoonooka and areas west of Nabawa towards Northampton.

The Avondale Stocking Rate Experiment, L D. White, R. J. Lightfoot, R. N. Glencross

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

THERE is now ample evidence that stocking rates well above the usual district levels can be carried in the Avon Valley.

However, many aspects of increasing stocking rates still require investigation, particularly with lambing ewes and young sheep.

Values Of Commonly-Used Protein Supplements In Broiler Rations, D F. Hessels

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

THE performances of broiler flocks in the latter part of 1964 were below standard. Low body weights and a high incidence of gizzard erosion were common on farms.

It was therefore decided to test the biological valuss of the commonly-used protein supplements and also to try to find a correlation between gizzard erosion and any of the protein supplements.

Animal Husbandry Research At Bramley, Department Of Agriculture, Western Australia

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

A progress report of animal husbandry investigations at the Bramley Animal Husbandry Research Station, Margaret River.

BRAMLEY RESEARCH STATION is four miles north of Margaret River.

The average annual rainfall of 45 inches falls mainly in the winter, providing a seven-month growing season which starts in March or April.

The June-July period is excessively wet, causing extensive waterlogging of the soils.

Comparisons Of Broiler Rations, D F. Hessels

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

PELLETS are the most profitable feed for broiler chickens—but when they contain about two-thirds cereal, does it pay a country grower to pay freight on pellets when cereals are plentiful in his district?