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Articles 1501 - 1530 of 1581
Full-Text Articles in Physical Sciences and Mathematics
Flooding And Salt Problems In The Wheatbelt, Department Of Agriculture, Western Australia
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.
Farming Without Fallow, H M. Fisher
Farming Without Fallow, H M. Fisher
Journal of the Department of Agriculture, Western Australia, Series 4
UNDER the more intensive cropping rotations common in the early development of the cereal areas of Western Australia bare fallowing was a basic technique in cereal production.
By ploughing the land in July or August and keeping it bare of vegetation for nine or ten months, either by grazing or cultivation, a substantial beneficial effect on the subsequent crop could be expected.
A Review Of The 1961-1962 Silage Competition, H G. Elliott
A Review Of The 1961-1962 Silage Competition, H G. Elliott
Journal of the Department of Agriculture, Western Australia, Series 4
FOR the past five years the Australian Dairy Produce Board Pasture Improvement Committee (W.A.) has sponsored a silage competition in the dairying areas.
Judging is done by the officers of the Dairy Division of the Department of Agriculture and prize money totalling £175 is awarded.
Farm Flora Sancturies, Robert Dunlop Royce
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.
Winter Management Of Salt Land, T C. Stoneman
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?
Water For Agriculture. 4. Clearing Cloudy Or Muddy Water, R C. Gorman
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.
Care Of Autumn And Winter Tomato Crops, W H. Kooyman
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.
Loss Of Structure In Wheatbelt Soils, T C. Stoneman
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.
Trace Elements For Cereal Crops And Pastures, Edgar Noel Fitzpatrick
Trace Elements For Cereal Crops And Pastures, Edgar Noel Fitzpatrick
Journal of the Department of Agriculture, Western Australia, Series 4
TRACE element deficiencies are widespread in Western Australia and application of copper, zinc, molybdenum and cobalt have played a major part in land development in this State.
Research Officer E. N. Fitzpatrick, M.Sc. (Agric.) reviews recent Department of Agriculture research on the use of Trace elements for crop and pasture growth on deficient soils in Western Australia.
Stilling Coastal Sand Drifts With Marram Grass, J L. Mcmullan
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.
Applying Copper And Zinc Fertilizers To Cereals, H M. Fisher
Applying Copper And Zinc Fertilizers To Cereals, H M. Fisher
Journal of the Department of Agriculture, Western Australia, Series 4
Most light soils with a sandy or gravelly surface are likely to need copper and zinc; heavier clay or loamy soils mostly do not.
Frost Injury Of Wheat, S C. Chambers
Frost Injury Of Wheat, S C. Chambers
Journal of the Department of Agriculture, Western Australia, Series 4
Late spring frosts commonly reduce yields and affect the quality of grain in many wheat crops- especially throughout the southern, eastern and north-eastern districts.
The damage is usually localised on individual farms, but occasionally widespread damage occurs in the south of the State.
Light Lands In Western Australia. 2. Their Nature, Distribution And Climate, George Henry Burvill
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.
Bare Patch And Poor Emergence Of Cereals. 3. Crusting Of The Soil Surface, S C. Chambers
Bare Patch And Poor Emergence Of Cereals. 3. Crusting Of The Soil Surface, S C. Chambers
Journal of the Department of Agriculture, Western Australia, Series 4
In some seasons extensive bare patches occur in cereal crops sown on the heavier wheat belt soils.
Experimental results from Beverley indicate that the poor emergence in some of these plantings may be due to crusting of the soil surface.
Working the surface with light harrows may destroy the crust and improve emergence.
Water For Agriculture. 3. Watering Plants With Salty Water, Stanley Thomas Smith
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.
Water Conservation On The Farm, John W. Lewis
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.
Fossils And Farmers. 2. The Ice Age, D Merrilees
Fossils And Farmers. 2. The Ice Age, D Merrilees
Journal of the Department of Agriculture, Western Australia, Series 4
What did the giant Australian marsupials of the "Ice Age" look like?
Fossil remains found by farmers could help reconstruct them, as well as giving some idea of conditions on the Australian continent at that time, says D. Merrilees, B.Sc, acting Curator of Palaeontology at the West Australian Museum.
Good Pasture On A Problem Soil, R Sprivulis
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
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.
The Control Of Grasses With Chemicals, G R W Meadly
The Control Of Grasses With Chemicals, G R W Meadly
Journal of the Department of Agriculture, Western Australia, Series 4
GRASSES are among man's greatest assets and usually he tries to encourage their growth.
The cereals, rice and many other grasses supply him with basic items of food and they are also important components of pastures which provide grazing for sheep and cattle.
Is Your Water Supply Safe?, D C. Mickle
Is Your Water Supply Safe?, D C. Mickle
Journal of the Department of Agriculture, Western Australia, Series 4
THERE can be no doubt in anyone's mind that the need for a clean, safe and adequate water supply is essential for the production of high quality milk and cream.
It naturally follows, that, even though every possible care has been taken in an endeavour to produce clean, germ-free milk and cream, contamination by bad water can render these efforts void.
Potatoes Sprinkler Irrigated From The Collie River, John W. Lewis
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.
Orchard Drainage, R G. Cahill
Orchard Drainage, R G. Cahill
Journal of the Department of Agriculture, Western Australia, Series 4
UNDERGROUND drainage of orchard land is an essential feature of fruitgrowing which is overlooked by many orchardists.
Soils should be adequately drained to cope with all winter rains.
Flooding Of Salt Land, C V. Malcolm
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
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.
Citrus Growers : Don't Blow Up Your Colouring Rooms, Department Of Agriculture, Western Australia
Citrus Growers : Don't Blow Up Your Colouring Rooms, Department Of Agriculture, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
THERE have been several dangerous incidents associated with the use of acetylene in citrus colouring chambers recently, and growers are warned to take care when using this explosive gas.
Copper Minerals For Fertilizer Use, R N. Glencross
Copper Minerals For Fertilizer Use, R N. Glencross
Journal of the Department of Agriculture, Western Australia, Series 4
COPPER fertilizers have an important role in maintaining: and increasing Western Australia's agricultural production.
On many soils they are essential for cereal growing or pasture production and persistence and for animal health and wool quality.
They are also sometimes used for fruit trees, vines, and vegetables.
Automatic Waterers For Day Old Chickens, P Smetana, W. Ward
Automatic Waterers For Day Old Chickens, P Smetana, W. Ward
Journal of the Department of Agriculture, Western Australia, Series 4
ONE of the most tedious and time consuming tasks on a poultry farm is the provision of water to chicks from day old up to the age of three or four weeks.
Most poultry farmers use half-gallon glass fonts with metal bases for the first few weeks, until the chicks are old enough to use the automatic watering system usually situated along one wall of the brooder house.
This cumbersome glass font system can be replaced by the cheap and easily installed automatic watering system described below. This system has already been adopted by several local poultry farmers.
Fossils And Farmers, D Merrilees
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
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.