Deep placement of nutrients - few excuses left not to recommend it


Research organisaton
Funding source

Trial details

Researcher(s) N Wilhelm
Year(s) 2005
Contributor South Australian Research and Development Institute
Trial location(s) Stansbury, SA
Deep placement of nutrients - few excuses left not to recommend it locations

To overcome subsoil constraints to crop growth.

Key messages
  • Investigated infertile soils over clay in SA and Victoria.
  • Earlier work showed that a "shotgun" mix of N, P, zinc, copper and manganese placed at 40cm regularly doubled cereal yields.
  • Have shown that such applications have onging residual benefits.
  • Need at least 25cm of sand or haying off can occur in dry years.
  • Deep ripping tyne type and spacing appear to be less important than depth of application at 40cm.
  • Apply nutrients at a rate which would double current yields.
  • Management of erosion after ripping is the primary challenge.
  • Addition of deep nutrient during ripping would appear to be a good option with reliable benefits.
Lead research organisation N/A
Host research organisation South Australian Research and Development Institute
Trial funding source GRDC
Related program More Profit from Crop Nutrition
Acknowledgments N/A
Other trial partners Not specified


Crop type Not specified
Treatment type(s)
  • Fertiliser: Application
  • Soil amelioration: Type
Trial type Unknown
Trial design Unknown

Stansbury 2005

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified

Trial report and links

No trial reports or attachments found

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Trial last modified: 09-10-2019 11:39am AEST