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Fig. 3 | Journal of Cotton Research

Fig. 3

From: Comparative effects of crop residue incorporation and inorganic potassium fertilization on soil C and N characteristics and microbial activities in cotton field

Fig. 3

Effects of crop residue incorporation and K fertilization on soil cellulase activity (mg·g− 1·(24 h− 1) of gulcose). Control, neither crop residue nor K fertilizer; W1C0, 0.9 t·ha− 1 wheat straw incorporation alone, W0C1, 0.7 t·ha− 1 cotton straw incorporation alone; W1C1, 0.9 t·ha− 1 wheat straw incorporation + 0.7 t·ha− 1 cotton straw incorporation; K150, 150 kg·ha− 1 of K2O; K300, 300 kg·ha− 1 of K2O. F values were given for SS, seedling stage; FS, flowering stage; BS, boll-setting stage and BOS, boll-opening stage. ** means P < 0.01; * means P < 0.05 and ns indicates P ≥ 0.05

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