Factors may affect phs.Logical formLearned from3 sentences. Phs may undergo determination.Logical formLearned from3 sentences. A ph may remain within range.Logical formLearned from3 sentences. A ph may undergo a use.Logical formLearned from3 sentences. (Ph values) can be measured.Logical formLearned from3 sentences. Phs may be conducted.Logical formLearned from3 sentences. (Solution ph) may control an extent.Logical formLearned from3 sentences. (Soil ph) may decrease.Logical formLearned from3 sentences. A (soil ph) may fall.Logical formLearned from3 sentences. A (soil ph) can be improper.Logical formLearned from3 sentences. Phs may be monitored.Logical formLearned from3 sentences. A ph may pertain-to a (reaction fluid).Logical formLearned from3 sentences. A ph may pertain-to a microenvironment.Logical formLearned from3 sentences. A ph may be alkalined.Logical formLearned from3 sentences. Ph may be monitored.Logical formLearned from3 sentences.