Repeated monitoring
(according to rain events : +/- 7 or 8 times year); supported by digital photography and direct measures:
- Regular soil surface assessment (crusting/surface structure, roughness) year 1 and 2 with quaddra-points nd then, with chain.
- Crop characteristics: height (m), yield.
- Mulch and vegetation cover fraction, digital analysis using 1m2 frames at sample locations.