Tag Archives: nutrition

Break crops in retained stubble systems in the Wimmera and Mallee

Crop sequences are most profitable when break crops are included to solve agronomic problems (grass weeds, root disease, low soil N). Trial work has demonstrated that crop sequences involving a broadleaf break crop can be more profitable than continuous wheat. This … Continue reading

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Can we reduce nitrogen inputs for wheat sown onto high-input crop stubbles and still achieve high yields?

By Heather Cosgriff (SFS) Key messages: Soil nitrogen availability was very high prior to sowing, 321.6kg/ha available Incorporating poppy stubble led to high potentially mineralisable nitrogen levels There was no yield or protein response to additional urea applications Trojan generally … Continue reading

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Profitable stubble retention systems for the HRZ

By Paul Breust and Aaron Vague (SFS) Key messages: Crops can be established and grown in 6.6t/ha of retained stubble in the HRZ without compromising establishment Stubble retention in the HRZ requires careful systems based planning and attention to detail Seasonal conditions … Continue reading

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Canola on incorporated stubble

By Damian Jones, ICC Work by Clive Kirkby, a CSIRO scientist, suggests that to improve our soil carbon levels, stubbles have to be incorporated and rapidly broken down by soil microbes rather than slowly decomposing on the soil surface. However if … Continue reading

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Nitrogen and sulphur timing in the Mallee

By Simon Craig (Agronomise, BCG consultant) Key messages: The application of nitrogen increased grain yield by 0.5t/ha, but there was no benefit from additional sulphur. At this site, money was better spent on nitrogen than on sulphur. Grain protein was very low (7-10% protein) which … Continue reading

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Contributions and constraints of stubble to nutrient supply in relation to stubble and soil analysis

Key messages: Trial was infected by high numbers of ARG and was sprayed out prior to harvest to prevent weed seed set in the farmers paddock There were no significant differences in dry matter production for any of the treatments … Continue reading

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BCG stubble trials for 2015

An extensive list of the field research being carried out by BCG, SFS and ICC this year is focused on stubble management and the influence of stubble on crop establishment, health, production and growth. The BCG team has almost finished its … Continue reading

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