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Articles 571 - 600 of 1555
Full-Text Articles in Soil Science
Salinity - An Albany Perspective, Mandy Curnow
Salinity - An Albany Perspective, Mandy Curnow
Natural resources published reports
This booklet has been put together as an introduction to salinity in the Albany, Denmark, and Plantagenet districts. As much local information has been included as possible, so that the booklet will relate to your situation. The booklet looks at the causes of salinity and bow to recognise it. Included also, are methods of measuring salt in water and soil, both in the laboratory and the field. Methods of controlling salinity and reversing rising ground waters are not covered as there are already so many publications dealing with this topic.
Most agricultural areas experience some Ievel of salinity. Controlling salinity, …
Conservation For Production : Kings Rocks Catchment Report, William Oldfield
Conservation For Production : Kings Rocks Catchment Report, William Oldfield
Agriculture reports
The aim of this report is to bring together current information on the land and ideas which will provide landholders of the King Rocks catchment group with a basis to make more informed decisions about managing the land. The report contains information on how the landscape was formed, how areas become degraded, what are the present recommended ways of fixing land degradation and what are the most productive means of farming the land.
Establishment Of Lupin Seedlings, Miles Dracup
Establishment Of Lupin Seedlings, Miles Dracup
Journal of the Department of Agriculture, Western Australia, Series 4
Good seedbed conditions lead to high and rapid seedling emergence and vigorous seedlings best equipped to avoid disease, weed competition and sand-blasting. Good establishment is needed for a high yielding crop.
In Western Australia, seedbed moisture and temperature are most likely to limit successful emergence of lupins, especially with the trend toward early sowing.
Research by the Department of Agriculture is helping to define seedbed temperature and moisture requirements for successful lupin establishment that will help future research for improving seedbed conditions.
North Stirling Land Conservation District - Soils Manual, Justin Hardy, Peter J. Tille
North Stirling Land Conservation District - Soils Manual, Justin Hardy, Peter J. Tille
Soil conservation survey collection
The North Stirling Land Conservation District is located between Katanning and Albany on the northern edge of the Stirling Ranges in south-western Western Australia.It includes parts of the Shires of Cranbrook and Tambellup, covering approximately 100,000ha of the catchment of the North Stirling basin. The basin is a flat area formed on Eocene sediments with poorly defined drainage lines and many salt lakes. It is surrounded by low granite and sandstone hills. The climate is Mediterranean, with cool wet winters and hot dry summers. Average annual rainfall ranges from 375-500 mm per annum. There is very little surface or underground …
Soil Sampling Made Easier, Mike Bolland, Mike Baker
Soil Sampling Made Easier, Mike Bolland, Mike Baker
Journal of the Department of Agriculture, Western Australia, Series 4
A new rotary blade soil sampler has taken the hard work out of collecting soil samples from Western Australia's hard-setting soils to test for soil phosphorus levels .
Conceived and developed by Department of Agriculture technical officer Mike Baker, it should enable soil testing to be more widely adopted. Fortunately, the soil calibration tests that were developed using pogo samples can also be used for the new sampler.
Improving Sustainable Production From Water Repellent Sands, Paul Blackwell
Improving Sustainable Production From Water Repellent Sands, Paul Blackwell
Journal of the Department of Agriculture, Western Australia, Series 4
The agricultural management of water repellent ( non-wetting) sands is difficult, and production from them is mostly low. However, there are ways to make them more productive.
Furrow sowing and the incorporation of dispersive clay are two likely methods to make these soils easier to manage, more productive and more profitable than they are now.
This article discusses several aspects of our research on water repellent sands. In addition, some of the costs and benefits of alternative management strategies are outlined.
Data Set And Code Definitions For Soil Profile Description : Dawa Regional Mapping Program, B R. Purdie
Data Set And Code Definitions For Soil Profile Description : Dawa Regional Mapping Program, B R. Purdie
Resource management technical reports
No abstract provided.
Controlling Wind Erosion In Field Pea Stubbles, Jeff Russell
Controlling Wind Erosion In Field Pea Stubbles, Jeff Russell
Journal of the Department of Agriculture, Western Australia, Series 4
The area sown to field peas in Western Australia's eastern wheatbelt has increased from 4000 ha in 1985 to about 35, 000 ha in 1992.
While field peas can be grown on soil types not suited to lupins, their stubble is highly fragile and prone to wind erosion, even at low grazing pressure. This is one reason why some farmers are hesitant to grow field peas.
Haroest losses of field peas can also be high; levels of JOO to 200 kg/ha of seed on the ground are not uncommon. For this reason farmers believe the stubbles should be grazed.
Farmers …
Bulletin 4274 - Tree Planting On The High Rainfall Coastal Plain, Don Bennett, Richard George
Bulletin 4274 - Tree Planting On The High Rainfall Coastal Plain, Don Bennett, Richard George
Bulletins 4000 -
Careful planning can mean the difference between the success or failure of a tree planting program . Healthy , well-e stablished trees stand a better chance of survival, grow faster and are more resistant to insect attack. The need for time-consuming watering in summer is also eliminated.
The high rainfall coastal plain extends from Perth to Busselton and inland to the Darling Scarp. It receives about 800 to 1000 mm annual rainfall.
Site preparation is ideally started in summer. For a winter planting, decide before March where to plant, which varieties and how many trees to plant. Early planning allows …
Soils Of The Northam Advisory District. Volume 3. The Darling Range And West Kokeby Zones, Ian Fulton, Neil Clifton Lantzke
Soils Of The Northam Advisory District. Volume 3. The Darling Range And West Kokeby Zones, Ian Fulton, Neil Clifton Lantzke
Bulletins 4000 -
This manual describes the soils of the Department of Agriculture's Northam advisory district. Information is provided on the characteristics of each soil, its capability is discussed and yield estimates for the major land uses are given.
Designed for use by farmers and Department of Agriculture staff, the manual’s primary aims are to:
- Assist with the identification of the advisory district’s soils types
- Match land use with soil quality
- Improve farm productivity and efficiency
- Reduce the incidence of land degradation
Landman Development And Evaluation In The Wallatin Creek Catchment - Final Report, Alan Hawkins
Landman Development And Evaluation In The Wallatin Creek Catchment - Final Report, Alan Hawkins
Natural resources published reports
The aim of the project was to evaluate and further develop the Landman farm planning procedure. The Wallatin creek catchment in the Kellerberrin shire of Western Australia was selected. This catchment is typical of a large area of the wheatbelt of Western Australia.
The landman farm planning procedure has a goal of sustainable farming. The outcome of the procedure is farm layout and farm management plans. The procedure however has components of personal development, technology transfer and development of problem solving skills at both individual and group levels. The process steps are; definition of objectives, collection of information, problem or …
Integrated Catchment Management : Upper Denmark Catchment, R Ferdowsian, K J. Greenham
Integrated Catchment Management : Upper Denmark Catchment, R Ferdowsian, K J. Greenham
Resource management technical reports
The project mapped the landforms and land management units on cleared parts of the catchment ; defined the extent of, processes causing and options for solving the salinity problem in the Upper Denmark Catchment; developed a catchment management plan that would reverse the increasing soil and stream salinity trend within the catchment; encouraged and assisted the landholders to adopt the plan; and applied the results of the study to other areas.
Effects Of Waterlogging On Crop And Pasture Production In The Upper Great Southern, Western Australia, J F. Wallace, G A. Wheaton, D J. Mcfarlane
Effects Of Waterlogging On Crop And Pasture Production In The Upper Great Southern, Western Australia, J F. Wallace, G A. Wheaton, D J. Mcfarlane
Technical Bulletins
Separate estimates of the effect of waterlogging on cereal yields were made using rainfall and crop yield statistics, and remote sensing. Both methods showed that waterlogging costs tens of millions of dollars each year in lost crop production in the Upper Great Southern Statistical Division. The costs will be over $100 m in wet years. Losses in pasture production are likely to be of a similar magnitude, but are harder to quantify.
Monitoring And Managing Soil Acidity, Fionnuala Frost, Extension Officer, Northam
Monitoring And Managing Soil Acidity, Fionnuala Frost, Extension Officer, Northam
Bulletins 4000 -
This Bulletin provides information on how to identify acid soils and remedy the problem of excessive acidity. Material in this handbook is suitable for broadscale agricultural systems, and perennial and permanent pastures in the medium and higher rainfall areas of the State.
Acidity of both the surface and subsurface layers of soil is addressed. Each can be important in affecting plant growth and therefore the profitability of the farm.
Soils Of The East Beverley Annex Of The Avondale Research Station, Neil Clifton Lantzke
Soils Of The East Beverley Annex Of The Avondale Research Station, Neil Clifton Lantzke
Resource management technical reports
No abstract provided.
Soils And Landforms Of The Manjimup Area, Western Australia, Hugh Maxwell Churchward
Soils And Landforms Of The Manjimup Area, Western Australia, Hugh Maxwell Churchward
Land resources series
No abstract provided.
Land Reclamation In The North Stirling Land Conservation District, M F. Lewis, National Soil Conservation Program (Australia)
Land Reclamation In The North Stirling Land Conservation District, M F. Lewis, National Soil Conservation Program (Australia)
Resource management technical reports
Investigations were carried out to determine the interaction between the lakes and groundwater systems, the influence of bedrock structures on groundwater flow, and the regional flow characteristics in the basin. The hydrological investigations showed that water does flow from lakes to the groundwater system. However, the benefits from draining land have to be compared with the benefits of not adding water to the lakes. A basin water balance showed that most of the excess water resulting from reduced epotranspiration since clearing remains in the basin as increased groundwater storage. Only relatively small quantities of the extra water leave the basin …
Deep Drains : A Case Study And Discussion, Russell John Speed, John Andrew Simons
Deep Drains : A Case Study And Discussion, Russell John Speed, John Andrew Simons
Resource management technical reports
Typically, deep, open drains are about 2 in deep and about 1 in wide at the base and dug with a backhoe or excavator. The movement of groundwater is controlled by two factors. One is the physical ability of the material to transmit fluid. Permeability is the measure used to describe the ability of a material to transmit fluid through pores and cracks. It depends largely upon porosity (the percentage of the total volume of thematerial that is pore space) and the degree of interconnectedness of the pore spaces. The other factor controlling groundwater flow is gradient. George (1985) found …
Quantifying Loss Of Yield Potential Due To Leaf Disease., B A. Peters, R Loughman
Quantifying Loss Of Yield Potential Due To Leaf Disease., B A. Peters, R Loughman
Experimental Summaries - Plant Research
To determine the impact of Septoria and barley yellow dwarf virus on wheat grown under the package approach on the south coast using different levels of fungicide and insecticide control on a susceptible variety of an appropriate maturity for early sowing.
Examine if there is any benefit for disease control of S. tritici from Baytan seed dressing. 92AL16.
Time of sowing and variety effects on the Septoria diseases of wheat. 92AL17.
Time of sowing effect on barley foliar diseases. 92AL19.
Evaluating variety mixtures to reduce Septoria using a range of lines. 92AL24.
Fungicides for control of Septoria nodorum of wheat. …
Results Of Stubble Research In Western Australia, Michael Perry, Ron Jarvis, Mel Mason, David Tennant
Results Of Stubble Research In Western Australia, Michael Perry, Ron Jarvis, Mel Mason, David Tennant
Journal of the Department of Agriculture, Western Australia, Series 4
Few farmers would question the desirability of retaining stubbles, both for control of erosion by wind and water, and to return organic matter to the soil. While the present debate is focused on the short term management of stubbles, longer term effects also need to be considered.
The Department of Agriculture has several long-running trials intended to measure long term effects.
Stubble : Friend And Foe, Department Of Agriculture And Food, Western Australia
Stubble : Friend And Foe, Department Of Agriculture And Food, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
Several articles in this issue of the Journal of Agriculture discuss some of the important issues of stubble management. The articles are condensed from some of the papers presented at a stubble workshop at Geraldton in 1991.
New Yellow Serradella Varieties For Low Rainfall Pastures, Clinton Revell
New Yellow Serradella Varieties For Low Rainfall Pastures, Clinton Revell
Journal of the Department of Agriculture, Western Australia, Series 4
Large areas of acidic, sandy soils in Western Australia's low and medium rainfall, wheatsheep areas are suited to the pasture legume, yellow serradella.
In the past, a lack of varieties with suitable maturity has limited the use of this species.
New varieties developed in Western Australia and significantly earlier in maturity than traditional types can now extend the use of yellow serradella into these regions.
Stubble Handling Begins At Harvest, Ed Blanchard
Stubble Handling Begins At Harvest, Ed Blanchard
Journal of the Department of Agriculture, Western Australia, Series 4
Long stubble left in the paddock after harvest causes major difficulties at seeding time. To demonstrate the benefits of having short stubble at seeding, the Trayning Land Conservation District Committee created four stubble treatments at harvest in 1988 and sowed into these stubble treatments in 1989.
Cost Effective Stubble Retention Practices, Andrew Green, Ed Blanchard
Cost Effective Stubble Retention Practices, Andrew Green, Ed Blanchard
Journal of the Department of Agriculture, Western Australia, Series 4
To increase the rate of adoption of stubble retention farming systems the Grains Research and Development Corporation is funding a three-year project with the Farm Machinery Unit to develop low cost, stubble handling systems from harvest to seeding
An Introduction To The Soils Of The Merredin Advisory District, T C. Stoneman, National Soil Conservation Program (Australia)
An Introduction To The Soils Of The Merredin Advisory District, T C. Stoneman, National Soil Conservation Program (Australia)
Bulletins 4000 -
With descriptions, illustrations and notes on nine common soils.
The Pros & Cons Of Retaining Stubble, Department Of Agriculture And Food, Western Australia
The Pros & Cons Of Retaining Stubble, Department Of Agriculture And Food, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
Few farmers in Western Australia today would question the desirability of retaining crop stubble. The problem usually is how to manage stubble so that it does not interfere with other parts of the farming system
How Stubble Affects Organic Matter, Plants And Animals In The Soil, Judy Tisdall
How Stubble Affects Organic Matter, Plants And Animals In The Soil, Judy Tisdall
Journal of the Department of Agriculture, Western Australia, Series 4
Cereal yields have not increased greatly in Australia over the past 30 years and they are still only about half the potential determined by rainfall. One of the reasons for these low yields is our fragile soils, worsened by traditional systems of tillage and the burning of stubble. These systems reduce the levels of organic matter and biological activity in soil
How To Reduce Spending On Land Conservation, Tim Negus
How To Reduce Spending On Land Conservation, Tim Negus
Journal of the Department of Agriculture, Western Australia, Series 4
Heavy spending on capital works for land conseroation is usually out of the question in the present financial climate, but the recession does not mean that landcare must be abandoned. There are many aspects of landcare that involve little or no extra cost. Soil conseroationist Tim Negus discusses them in this article.
The Role Of Earthworms In Western Australian Agriculture, Tom Mccredie, Lex Parker
The Role Of Earthworms In Western Australian Agriculture, Tom Mccredie, Lex Parker
Journal of the Department of Agriculture, Western Australia, Series 4
Earthworms have a reputation as soil builders and renovators, particularly among 'organic' farmers and gardeners. They improve soil fertility through increased aeration, aggregation, water infiltration and release of nutrients from organic matter. However, the benefits of earthworms in the wheatbelt have been doubted for many years because of their poor survival in cultivated soils.
Since cropping began in the Western Auslmlian whealbelt over 1OO years ago, the physical condition of many soils has deteriorated. The primary causes of soil degradation were the European cultivation practices used by farmers and the trampling effect of introduced animals. in particular, sheep.
Land Resources Map In The Southern Section Of The Peel-Harvey Catchment, Swan Coastal Plain, Western Australia, Dennis Van Gool, Bev Kipling
Land Resources Map In The Southern Section Of The Peel-Harvey Catchment, Swan Coastal Plain, Western Australia, Dennis Van Gool, Bev Kipling
Land resources series
Soil-Landscape map prepared to assist nutrient management and land use planning in the southern section of the Peel-Harvey catchment.