"Review field","Your record","Evidence and completion guidance"
"Crop/block, medium and crop stage","","Keep the actual interpretation scope identifiable."
"Product: full identity and current label revision","","NPK numbers alone are not the whole formulation."
"Product: nitrogen forms and other relevant formulation evidence","","Retain label evidence; no ammonium/nitrate target is provided."
"Product: potential acidity/basicity and complete unit","","Copy the actual value, reaction type and mass basis; not pH units or a lime/acid dose."
"Product: missing formulation or unit question","","Resolve before comparing products."
"Feed: stock concentrate or prepared delivered solution","","Identify exactly what was sampled."
"Feed: pH result and sample context","","Record date, location and approved preparation context; no mixing instructions."
"Water: source and analysis reference","","Identify the water actually used for the relevant feed."
"Water: alkalinity value and units","","Keep separate from water pH and fertilizer potential reaction."
"Substrate: matched-method pH trend","","Date, method, location and comparable series reference."
"Substrate: relevant changes and crop context","","Water/product/substrate/irrigation changes for adviser review."
"Interpretation: what the label answers","","Record product tendency without predicting final crop pH."
"Interpretation: what the measurements answer","","Keep immediate solution evidence separate from observed substrate outcome."
"Adviser conclusion and uncertainty","","No diagnosis or replacement decision from one number."
"Next required evidence and owner","","Name the unresolved product/water/feed/trend question."
"Use","","Use four separate evidence groups. An acidic solution and potential-basicity label are not automatically inconsistent. No dose or final-pH formula. Manual record; no formulas."
"Source context","","UMass: https://www.umass.edu/agriculture-food-environment/greenhouse-floriculture/greenhouse-best-management-practices-bmp-manual/nutrient-management ; UGA: https://fieldreport.caes.uga.edu/publications/B1256/essential-ph-management-in-greenhouse-crops-ph-and-plant-nutrition/"