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Articles 1 - 9 of 9
Full-Text Articles in Soil Science
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.
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
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.
Narrow-Winged Seeder Points Reduce Water Erosion And Maintain Crop Yields, Kevin Bligh
Narrow-Winged Seeder Points Reduce Water Erosion And Maintain Crop Yields, Kevin Bligh
Journal of the Department of Agriculture, Western Australia, Series 4
Sowing crops without loosening the topsoil by tillage reduces water erosion. It can increase infiltration of rainfall into loamy soils, thereby reducing runoff and increasing potential crop yields. Crop yields were maintained after I1 seasons of seeding an Avon Valley loam near Beverley with minimum and no-tillage seeding operations. Infiltration increased significantly from 80 per cent of the 1983 growing-season rainfall under the traditional three tillage operations, to 87per cent under a single tillage operation using a combine seed drill. Infiltration increased further to 96 per cent under a no-tillage system using a triple^lisc drill. At Gnowangerup, 80 per cent …
Drainage Of Sandplain Seeps For Salinity Control And Stock Water Supplies, Richard George, Peter Frantom
Drainage Of Sandplain Seeps For Salinity Control And Stock Water Supplies, Richard George, Peter Frantom
Journal of the Department of Agriculture, Western Australia, Series 4
Sandplain seeps are derived from a shallow groundwater system which flows from the deep sandplain soils upslope. Seeps result in small areas of salinity and waterlogging, which can be the focus of soil erosion. Sandplain seeps may represent as much as 10 per cent of Western Australia's salt problem in the drier agricultural area. Several drainage experiments conducted between 1986 and 1989 determined the best methods of reclaiming sandplain seeps.
This article discusses the results of these drainage experiments. It comments on the most suitable method for reclaiming sandplain seeps and developing them for stock water supplies.
There's Little To Choose Between Scarifier Points, C R. Lester
There's Little To Choose Between Scarifier Points, C R. Lester
Journal of the Department of Agriculture, Western Australia, Series 4
Tests on scarifier points showed that methods of treating them to prolong their life had little effect.
Opposed Disc Plough Furrows Hard Kimberley Soils, Department Of Agriculture, Western Australia
Opposed Disc Plough Furrows Hard Kimberley Soils, Department Of Agriculture, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
THE work of reclaiming the eroded areas of the Ord River catchment has posed special problems for field staff of the Department of Agriculture engaged on this large scale project.
Thousands of miles of furrows must be contour-ploughed and seeded in extremely hard ground over big areas of eroded country.
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.