Physical Sciences and Mathematics Commons^™

The Impact Of The "Profitable Perennials" Project On Adoption : An Evaluation, Jamie Bowyer, Rebecca Heath

Resource management technical reports

No abstract provided.

Natural Resource Management Issues For The South Coast Regional Strategy, B Nicholas

Resource management technical reports

This report has been prepared by the Agricultural Resource Management Program of the Department of Agriculture to assist SCRIPT (South Coast Regional Initiative Planning Team) in preparing the regional strategy. It records the key natural resource management issues threatening agricultural land on the south coast of Western Australia. Managing agricultural land effectively should be a priority in reducing the risks of land degradation on all assets-productive agricultural land, biodiversity and waterways.

Bremer-Gairdner Catchment Appraisal Report 2003, Tim D. Overheu

Resource management technical reports

Assessment of the condition and future risks to agricultural and natural resources within the Bremer-Gairdner region in Western Australia using the Rapid Catchment Appraisal. Details include climate, geology, soil-landscape information, hydrology, waterways, wetlands and estuaries, natural vegetation, land use and infrastructure, agricultural production, demographics; soil degredation risks, hydrology risks, farming system impacts, vegetation condition and risks, infrastructure assets; and management options.

Improved Soil Management And Cropping Systems For Waterlog-Prone Soils : Results Of The 2000 Season, Derk Bakker, Greg Hamilton, David Houlbrooke, Cliff Spann

Resource management technical reports

The results of the fourth year of a five year research and development project to develop soil management practices and cropping systems to prevent waterlogging and increase the productivity of waterlogged lands in Western Australia. The concept of raised beds was used to alleviate or prevent waterlogging.

Improved Soil Management And Cropping Systems For Waterlog-Prone Soils : Results Of The 1999 Season, Derk Bakker, Greg Hamilton, D Houlbrooke, Cliff Spann

Resource management technical reports

The project aim was to map the distribution of waterlogging occurrences relative to soil type and climate; to develop soil, water and crop management practices applied to the concept of raised beds to alleviate or prevent waterlogging; to establish the economics of raised bed farming, relative to geographic location and waterlogging frequency.

Inventory Of Sub-Catchments Within The Albany Eastern Hinterland, B Radys

Resource management technical reports

The release of the "Salinity Action Plan for Western Australia' in December 996 highlighted the need for catchment scale planning and coordinated actions to reverse salinity trends.

A separate report has been produced for each major catchment area. Each report contains and inventory of all sub-catchments, with information on area, degradation risks and group activities with each catchment.

Inventory Of Sub-Catchments Within The Oyster Harbour Catchment, B Radys

Resource management technical reports

The release of the "Salinity Action Plan for Western Australia' in December 996 highlighted the need for catchment scale planning and coordinated actions to reverse salinity trends.

A separate report has been produced for each major catchment area. Each report contains and inventory of all sub-catchments, with information on area, degradation risks and group activities with each catchment.

Inventory Of Sub-Catchments Within The Wilson Inlet Catchment, B Radys

Resource management technical reports

The release of the "Salinity Action Plan for Western Australia' in December 996 highlighted the need for catchment scale planning and coordinated actions to reverse salinity trends.

A separate report has been produced for each major catchment area. Each report contains and inventory of all sub-catchments. with information on area, degradation risks and group activities with each catchment.

Toward Better Minimum Tillage For South-Coastal Sandplain Soils, W L. Crabtree

Resource management technical reports

Seventeen farmers compared their conventional cropping practices with some form of minimum tillage cropping. The minimum tilled crops yielded 21 percent less grain than the conventionally sown crops. The reasons for these decreased yields were in most cases related to inexperienced management. The minimum tilled treatments usually had very poor weed kill strategies which often resulted in large weeds at sowing, very cloddy seed-beds, and numerous insects in the young crops.

An Economic Model For Evaluating Strategies On The South Coast Of W.A. Which Reduce Wind Erosion : Documentation, A D. Bathgate

Resource management technical reports

The sandplain region on the south coast has predominately sandy soils which are subject to erosive winds when ground cover is likely to be scarce. This can often result in production losses of crop and pasture. There is concern that wind erosion will lead to the depletion of the soil resource in the long term. The model is multi-period linear programming with a planning horizon of 10 years. Effects of wind erosion on production can be imposed on the model for the first five years after the erosion event.

Evaluation Of Risk Factors Leading To Soil Destabilisation On The South Coastal Sandplain Of Western Australia, R V R Gwynn, P A. Findlater, J R. Edwards

Resource management technical reports

The problems of wind erosion in part of the south coast of Western Australian sandplain area were described previously (Gorddard et al, 1981) with 7.3 per cent of cleared and 18.3 per cent of the cropped area showing evidence of sand blasting. Department of Agriculture trials have shown that the loss of the top four millimetres of top soil from pastured paddocks can reduce following crop yields by up to 20 per cent (Marsh and Carter, 1983). Animal production problems associated with wind erosion of soils have not been quantified, but a number of problems such as reduced carrying capacity …

The Role Of Minimum Tillage On The South Coast Sandplain Soil : A Literature Review, W L. Crabtree

Resource management technical reports

No abstract provided.