How to use Tuzhi

Tuzhi is a matching handbook, not a prescription. If the field looks like a guide, open that guide. Rates are ranges. Confirm them with a local agronomist and the label.

Photo check maps photos and words to the field guide. The result is for learning. It does not replace professional advice.

Reading the soil test only explains the cells on the sheet. Different soil:water ratios cannot be compared as-is. A report is a measurement, not a disease name, and not a prescription.

Q&A is for a photo of your own field. Posts marked Example are demos.

Do not turn a range on this site into a bag count. Do not copy a neighbouring county’s lime bill.

Diagnosis is for learning only. It does not replace a local agronomist or a lab test. For serious damage, call your extension station.