Assertion: boron | /r/CapableOf | increase at ph
Facets:
value: from 1
type: OTHER
Source sentences:
text: However at pH 8, as boron increased from 1 to 21 mg l−1, head yields at both low (EC 2 dS m−1) and high (EC 14 dS m−1) were reduced by more than 85%.