"Field","Entry","Link or clarification needed"
"Investigation ID and linked sample IDs","",""
"Investigation question, crop and stage","",""
"Zone, tank and sample role","","Source / feed / root zone / return"
"Sample ID, location, date and time","",""
"System state and relevant mixing or travel time","",""
"Sampling or extraction method","","Laboratory instruction reference"
"Tank volume or level and recent volume changes","","Measured or estimated basis"
"Water additions, nutrient additions and product identity","","Amounts, units and timestamps"
"Field EC, temperature information and meter check","","Original unit and instrument record"
"Requested individual ions or elements","","Adviser-selected panel, including relevant source contributions"
"Laboratory result, unit and reporting basis","","Element or compound basis where relevant"
"Sample handling and receipt information","",""
"Crop observations and related tissue analysis, if requested","",""
"Adviser interpretation and unresolved question","",""