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Chemical and Biological Technologies in Agriculture
Fig. 1 | Chemical and Biological Technologies in Agriculture

Fig. 1

From: The effect of Penicillium bilaii on wheat growth and phosphorus uptake as affected by soil pH, soil P and application of sewage sludge

Fig. 1

Length of fine (d ≤ 0.3 mm) and coarse (d > 0.3 mm) roots of wheat grown in a the acidic soil and b in the calcareous soil. Legend: unamended control soil (C), soil and P. bilaii (CPb), soil amended with sewage sludge (SS), sewage sludge and P. bilaii (SSPb), triple super phosphate (TSP) and triple super phosphate and P. bilaii (TSPPb) in acidic soil (denoted “-a”) and calcareous soil (denoted “-c”). The total height of the bars represents the total root length. Error bars represent the standard error of the mean in (-a) (n = 2) and in (-c) (n = 4). Capital letters indicate significant differences of total root length between treatments and small letters indicate differences in fine and coarse root length for all the treatments

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