Figure 7 | Scientific Reports

Figure 7

From: Long-term application of fertilizer and manures affect P fractions in Mollisol

Figure 7

Effect of long-term application of chemical fertilizer, organic manure and straw on the percentage of different P fractions. LOP, labile organic P; MLOP: moderately labile organic P; MSOP: moderately stable organic P; HSOP: highly stable organic P. CK: no fertilizer application, NPK: chemical fertilizer application, NPK + S: chemical fertilizer plus maize straw incorporation, OM: organic manure application.

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