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Chemical and Biological Technologies in Agriculture
Fig. 4 | Chemical and Biological Technologies in Agriculture

Fig. 4

From: The effect of chelating agents on the Zn-phytoextraction potential of hemp and soil microbial activity

Fig. 4

Influence of NTA or CA treatment on content of proline in root system (a) and above-ground parts (b) and total zinc content in root system (c) and above-ground parts (d) of plants in experimental variants (Table 2). Mean values in columns marked with same letters are not statistically significantly different (Tukey’s test, p ≤ 0.05), error bars = standard deviation

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