Assessment of error sources in measurements of field pH : Effect of operator experience, test kit differences, and time-of-day
Robinson, Nathan, Norng, Sorn, Rees, David, Benke, Kurt, Davey, Michelle
Improving the information content in soil pH maps: a case study
Robinson, Nathan, Benke, Kurt, Norng, Sorn, Kitching, Matt, Crawford, Deborah
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