Acid soil management – 5cm rule for soil pH testing

While previous acid soil testing practice was to not test as deep, new research, has identified greater acidic layering, where crop roots remain under the soil not benefiting from the full potential of amelioration. In this episode, we talk to Mark Richards from NSW DPI, and grower Andrew Lord about the new 5cm rule for testing soil pH. It allows the hidden acidity in lower layers to be recognised and treated, giving growers increased productivity and profit.

Download the transcript for this episode

Contact

Mark Richards
NSW DPI
mrichards@nswdpi.com.au

More information

Groundcover – Fixing acidity puts yields on the fast track

NSW DPI – What is an acidic soil?

NSW LLS – Managing soil acidity in the cropping zone

GRDC webinar – Grains Research Update, online – Managing soil acidity – Identifying pH stratification to guide lime rates, acid soil management strategies and cropping programs

GRDC YouTube – Acid soil management: New practices for better soil constraint identification

Weedsmart – Competitive and profitable crops from fixing sub-soil acidity