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Managing fertigation technologies in citrus orchards

With recent advances in technology irrigators can now more precisely control delivery of mineral nutrients and water to the roots of perennial tree crops. These technologies, collectively referred to as fertigation, provide the opportunity to adopt and implement highly technical management programs, such as open hydroponics, that use drip irrigation to deliver a balanced mixture of nutrients and water. This research bulletin provides an overview of a project, funded by the National (more)...

Powerful Choices: transition to a biofuel economy in Australia

The Powerful Choices study uses a biophysical-economics model of the Australian economy to explore the capability of discrete low-carbon technologies to maintain economic growth, ensure energy security and reduce CO2 emissions out to 2051. The approach applies physical laws of thermodynamics and mass balance to established economic structures to ensure that financial dynamics are constrained by physical reality. Renewable electricity (bio-electricity, wind, solar thermal and (more)...

Advanced airborne technologies for mapping and monitoring native Australian vegetation

Airborne sensors can be used by natural resource managers and researchers to collect data about things which can be seen, such as vegetation cover, as well as characteristics like canopy condition and water use, which are not visible. Importantly, faster and more accurate data collection over large areas can be achieved by combining light detection and ranging (lidar) with other airborne technologies which include multi and hyper spectral scanners, digital video and still photography. Lidar can be (more)...

Final Report 4 - Handbook of flexible technologies for irrigation infrastructure

URS Australia was commissioned by the Department of Primary Industries (DPI) to prepare a handbook of technologies that are available to provide flexibility in irrigation delivery systems to deal with the varying irrigation demands which may occur in the future. The project follows on from a process of scenario planning which was used by the Department to develop a vision for the future of irrigated agriculture in the Goulburn-Broken Catchment of (more)...