Table 1 Soil data
From: Effect of bioeffectors and recycled P-fertiliser products on the growth of spring wheat
Soil | Management | Texture (%) | OC (%) | pHa | P CAL (mg kg−1) | P TOT (mg kg−1) | ||
|---|---|---|---|---|---|---|---|---|
Sand | Silt | Clay | ||||||
Vördenb | Conventional farming system. Arable land food production. No P addition for more than 30 years | 41.1 | 46.9 | 12.0 | 0.8 | 5.0 | 26 | 310 |
NDT-Ac | Continuous cropping. No addition of P fertiliser for more than 30 years | 55.4 | 31.2 | 13.4 | 1.1 | 5.8 | 35 | 397 |
Humpolecc | Continuous cropping (potato, wheat, barley). No addition of P fertilisers | 30 | 49 | 21 | 1.6 | 4.5 | 59 | 587 |
Poděbradyc | Conventional farming system. Low P input | 57 | 24 | 19 | 1.9 | 6 | 30 | 384 |