Assertion: chlorophyll | /r/CapableOf | increase with nutrient
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Source sentences:
text: NO 3 − , PO 4 3 − and SiO 4 4 − showed a positive coefficient, indicating that chlorophyll a tends to increase with these nutrients, the response is not linear (Figure 8) and the concentration of chlorophyll increases mainly at low concentrations, but tends to decrease at higher concentrations of them.