Summary
In field experiments on soils of different rooting density and different yield potential relationships between P uptake and root penetration of the soil, respectively, EUF-P contents in the topsoil were studied.
On soils under uniform climatic and management conditions yields increased with increasing total root length in the subsoil (30–100 cm depth), while a negative correlation was found to exist between yields and total root length in the topsoil (0–30 cm).
P removal was significantly correlated with the readily available water capacity of the rooted soil volume, which indicates the yield potential of a soil. There was no significant correlation between EUF-P contents of the soils and the P contents of the plants, but P contents in plant dry matter was significantly correlated with rooting density in the topsoil. Considering the effect on P contents of both EUF-P content in the topsoil and rooting density, the correlation coefficient was increased.
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Rex, M., Harrach, T. & Németh, K. The influence of rooting density in the soil on P removal by cereals on soils with different yield potential. Plant Soil 83, 127–132 (1985). https://doi.org/10.1007/BF02182722
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DOI: https://doi.org/10.1007/BF02182722