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Figure 1

From: Effects of the application of different improved materials on reclaimed soil structure and maize yield of Hollow Village in Loess Area

Figure 1

Effects of the application of different improved materials on SOM and TN CK: no improved material; TM: maturing agent (ferrous sulfate); TF: fly ash; TO: organic fertilize; TMF: maturing agent + fly ash, TMO: maturing agent + organic fertilizer; TFO: fly ash + organic fertilizer; SOM, soil organic matter; TN, total nitrogen. Different lowercase letters represent significant differences among different improved material treatments in the same soil layer.

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