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Effects of farmyard manure compost and biodynamic preparations

Long-term trial at IBDF Darmstadt (since 1980)

Site conditions

Latitude 49° N, longitude 8° E; 100 m above sea level, annual averages 9.5°C air temperature and 590 mm precipitation; haplic cambisol with 87% sand, 8% silt and 5% clay in the topsoil.

Trial field:


types of fertilization: CM, CMBD, MIN
fertilization levels: 1, 2, 3
replicates: a, b, c, d

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