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Chemical and Biological Technologies in Agriculture
Fig. 5 | Chemical and Biological Technologies in Agriculture

Fig. 5

From: Variations in the quantity and chemical composition of soil dissolved organic matter along a chronosequence of wolfberry plantations in an arid area of Northwest China

Fig. 5

FI (A), BIX (B), and HIX (C) values of soil DOM under the corn field and five wolfberry plantations with different ages. Different lower-case letters indicate significant differences between the wolfberry planting ages (P < 0.05). The dotted line indicates the mean value calculated using the data of the five wolfberry orchards with different planting ages

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