Intermittent disturbance combined N and P adding favor colony size and abundance of Microcystis flos-aquae

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Table 1

The mean value of nutrient paramenters and Chla in different treatments.

Parameters	Control	+N+P	ID	ID+N+P
DTN (mg/L)	2.810^b	5.103^a	2.691^b	4.795^a
DTP (mg/L)	0.094^b	0.202^a	0.083^b	0.189^a
NO₃⁻-N (mg/L)	2.333^b	4.219^a	2.272^b	4.025^a
NH₄⁺-N (mg/L)	0.133^b	0.163^a	0.174^a	0.120^b
PO₄³⁻-P (mg/L)	0.064^c	0.215^a	0.063^c	0.183^b
Chla (µg/L)	160.778^c	206.041^b	156.481^c	231.659^a

Note: The same letter indicates no significant difference and the different letters indicate significant difference (P < 0.05). ID = Intermittent disturbance, N = nitrogen, P = phosphorus.

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