Posted 2/23/2021 11:41 (#8852990 - in reply to #8851635) Subject: RE: Mapper...research
Colorado and Oz
The rule of thumb I use to explain how this might work is a range of 0.3 to 1.5 mt SOC/ac/yr. The 0.3mt/ac/yr is a guide for no-till. The 1.5mtSOC/ac/yr is for healthy, well balanced no-till practing IPM and BMP for complex cropping and cover crops with livestock thrown in. Not all farming systems will be able to achieve this particularly if covers and IPM are not well implemented.
My personal bet is that as the price of carbon starts hitting $40+/mtCO2e, the management to get a healthy soil in a carbon sequestration condition will show pay.
How to measure SOC: iSCAN from Veris Tec, SmartFirmer from AGCO's Precision Planting, and Yard-Stick are direct soil contact sensor designs that are being applied to understanding SOC distribution. There is some research that soil health can return to damaged soils in a more elastic manner that areas with high or abundant SOC like in low-drains and toe-slope?