Soil and Nutrition, 11 May 2022
Grain growers in the southern cropping region’s high rainfall zone (HRZ) are urged to undertake critical deep nitrogen soil testing to underpin economically smart fertiliser programs in 2022.
Soil and Nutrition, 26 Apr 2022
Growers looking to refine their fertiliser strategy are encouraged to use test strips this season to help determine what nutrients are lacking and how much is required.
Soil and Nutrition, 21 Apr 2022
The potential for Western Australian growers to access legacy phosphorus – residual phosphorus from years of fertiliser application– is being investigated by Dr Gustavo Boitt. Through enhanced understanding of soil phosphorus dynamics and the effects of crop sequences, Dr Boitt is quantifying various chemical and microbial processes contributing to soil phosphorus availability.
Soil and Nutrition, 12 Apr 2022
It is early days, but long coleoptile wheat research in Central and Southern Queensland has the potential to boost yields
Soil and Nutrition, 09 Apr 2022
Re-evaluating sowing dates to balance crop stress against crop potential could boost wheat yields in Central Queensland
Soil and Nutrition, 07 Apr 2022
New research findings on the combination of early sowing dates and ameliorated soils for wheat crops in Western Australia’s high rainfall zone is providing growers new insights into sowing time, nutrition, grazing options and canopy management.
Soil and Nutrition, 01 Apr 2022
The potential of mineral mulches to reduce evaporation and increase crop yield on heavy sodic soils is being explored in a project lead by the Department of Primary Industries and Regional Development at Esperance. Initial field studies using gravel mulches have shown yield increases and glasshouse studies have demonstrated a reduction in evaporation when gravel mulch is applied. The work is ongoing.
Soil and Nutrition, 15 Mar 2022
Incorporating portable technologies, not yet in use in agriculture, to provide rapid in-field lime tests has been evaluated by professional services company, GHD. Two promising technologies were identified but did not provide a rapid assessment as extensive manipulation of the data was still required. With advancements over time, the technologies are expected to become more efficient. Meanwhile, modifications to the popular lime ‘fizz test’ have been identified to make it more robust and cost-effective for growers.
Soil and Nutrition, 08 Mar 2022
South Australian farming couple Dane and Natalie Sommerville wanted to find out more about the different soil amendment products and application methods they could use to address soil acidification. As a result, they were keen to host a liming trial on their property as part of GRDC-invested research targeting acids soils in South Australia.
Soil and Nutrition, 03 Mar 2022
At GRDC's Northern Update series, a research paper on balancing high phosphorus input costs with likely return on investments was presented.