Cereals 2026: What to Expect From the Soil Hole

Why It Matters

Understanding root penetration and water extraction in limestone‑rich, drought‑prone soils will help optimize cereal yields and inform irrigation planning.

Key Takeaways

• Site features 30 cm topsoil with fragmented limestone and moisture.
• Wheat roots occupy ~70% of root mass in top layer.
• Below cultivation zone, organic matter is scarce and soil lighter.
• Deeper 40 cm+ layer shows fragmented limestone with penetrating roots.
• Expected meter‑and‑half soil hole will reveal roots extracting water.

Summary

Mid‑April, researchers inspected a test pit at the Cereals 2026 site to anticipate conditions for the planned June soil‑hole.

The shallow 30 cm topsoil consists of fragmented limestone, ample moisture, and supports dense wheat roots, which account for roughly 70 % of the crop’s total root mass.

Below the cultivated zone, a thin, lighter‑colored layer shows minimal organic matter, followed by a deeper 40 cm+ stratum of broken limestone still traversed by roots.

The team expects that digging to 1.5 m will reveal continuous root networks extracting water from these drought‑prone soils, guiding water‑use strategies and improving yield forecasts for cereals under increasingly dry conditions.

Original Description

Soils & Farming Systems Specialist David Clarke digs into Diddly Squat Farm's soil to explain what you will see in June at the Cereals Event...