Authors: Jack Desbiolles, Therese McBeath, Lynne Macdonald, Rick Llewellyn,
Bill Davoren, Willie Shoobridge
Research Team: CSIRO, University of SA
Funded By: GRDC (project CSP00203)
Project Title: Increasing production on sandy soils in low and medium rainfall areas of the Southern Region
Key Words: fertility strips, production, sandy soil, sands, nutrition
• The benefits of fertility strips on crop productivity are being tested at a deep sand site near Lameroo, SA.
• The concept includes the addition at seeding time of clay, organic matter and/or biochar material to gradually increase the Cation exchange capacity of a permanent furrow zone over a cycle of seasons.
• In this 1st year, little impact of the various inputs could be found, but an extra 0.54t/ha wheat yield was measured when 200 kg/ha of clay+organic matter prills were placed at 200 mm depth, rather than the default 100 mm furrow depth.
• On-going research is planned to evaluate the fertility strip concept over a full cycle of 3-4 seasons.