South Australian Grains Industry Trust (SAGIT) trials

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Trial Contributor
Funding sources
Year Trial site
Addressing production constraints through the modification of sandy soils

To improve our understanding of what is driving these responses and how soil modification techniques can be improved on sandy profiles.

Lower Eyre Agricultural Development Association
GRDC
2011 Ungarra SA
Research organisaton
Copper management for the future - three years of trials on lower EP

This project aimed to explore different management strategies to overcome copper deficiency in cereals. The project compared the effectiveness of copper sulfate and copper chelate applied either as liquids banded at seeding or as a foliar spray. The project also evaluated the effect of different timings of application of the foliar sprays and their efficiency.
This project aimed to benefit local and South Australian farmers by establishing an independent best practice management guide for copper applications for the future.

Agricultural Innovation & Research Eyre Peninsula
2017 Multiple Site, Eyre Peninsula, SA SA
Research organisaton
Impact of fertiliser on wheat emergence under dry conditions

With larger seeding programs, increased summer weed control to conserve soil moisture and more variable autumn rainfall patterns, more growers Australia-wide are moving toward dry sowing.

On upper Eyre Peninsula in 2017 and 2018, seed was placed in the soil for many weeks with limited soil moisture, some seed still germinated but the delayed plant emergence often resulted in a lower plant establishment. This raised questions by growers about the soil factors which reduce germination and establishment.

This article summarises a pot trial which assessed the impact of DAP placement on wheat establishment on three different soil types; a red loam (Minnipa Agricultural Centre (MAC)) and two grey calcareous soils (Streaky Bay and Cungena).

 

SARDI Minnipa Agricultural Centre
2019 Minnipa Agricultural Centre SA
Research organisaton
Improving the early management of dry sown cereal crops

With larger seeding programs, increased summer weed control to conserve soil moisture and more variable autumn rainfall patterns, many growers Australia wide are continuing to dry-sow. More traditionally, growers may have previously ‘dabbled a little’ in dry-sowing and are observing with interest the successes and failures of dry-sowing systems.

On upper Eyre Peninsula in 2017 and 2018, seed was placed in the soil for many weeks with limited soil moisture; some seed still germinated but the delayed plant emergence often resulted in a lower plant establishment. This raised questions by EP farmers and consultants about the soil factors which influence seed germination and establishment.

Research trials were established in 2019 to assess the impact of management on seed germination and establishment on three different soil types in field trials and pot experiments; a red loam [Minnipa Agricultural Centre (MAC)] and two grey calcareous soils (Cungena and Streaky Bay) for:

  • Impact of fertiliser type (P and N) and fertiliser placement,
  • Impact of practices, herbicides and seed dressings.

 

This article reports on field trials undertaken in 2019 at three sites.

SARDI Minnipa Agricultural Centre
2019 Minnipa Agricultural Centre SA
Research organisaton
Investigating the impact of carbon inputs on disease suppression

To understand the impact of soil carbon and nitrogen cycling on disease suppression.

SARDI Minnipa Agricultural Centre
2009 Minnipa SA
Research organisaton
Long Coleoptile Wheat on Eyre Peninsula

Improving the reliability of early
establishment  plays  an role in increasing water and yield potential cropping  environ­ 
Establishing plants earlier extends the growing
a crop, and when with optimal phenology, more time for a plant to
develop resources that ultimately contribute to grain fill and yield.

Seeding deeper, into soil moisture present below the 'normal seeding bed' may help to establish 
plants earlier without relying onan autumn break for germination. Currently, wheat growers are 
restricted to a seeding depth of 3-5 cm because modern wheat varieties have a shortened  coleoptile 
associated with dwarfing genes that were introduced  in  the  1960's  to increase yields. The 
length of a coleoptile restricts seeding depth because it is a hollow shoot that protects the first 
leaves as they grow  towards  the soil  surface during  germination.  Breeders have now identified 
an alternate dwarfing gene 'Rht18' that allows a coleoptile up to 12 cm long, whilst maintaining  
the reduced height associated  with modern high yielding wheat varieties.

The trials reported here assessed the performance of long coleoptile wheats  in an Eyre Peninsula 
farming system.
 

Agricultural Innovation & Research Eyre Peninsula
2021 Site D, Cootra, SA SA
Research organisaton
Optimising legume inoculation for dry sowing

To assess a range of commercial rhizobia inoculant products, application strategies and sowing times to provide growers with recommendations that ensures adequate nodulation and nitrogen fixation in dry sown crops.

 

SARDI Minnipa Agricultural Centre
GRDC
2018 Minnipa SA
Research organisaton
The impact of soil mineral nitrogen on disease suppression

To understand the impact of soil carbon and nitrogen cycling on Rhizoctonia solani disease suppression.

SARDI Minnipa Agricultural Centre
2010 Minnipa SA
Research organisaton