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Soil Health and Fertility Management

Soil Testing Explained

What a soil test measures, how to sample correctly and how to read the report.

Kuza Editorial · 19 Aug 2026

Take 10-15 sub-samples in a zig-zag across the field at 0-20 cm depth, mix them and submit about 500 g. A standard report covers pH, organic carbon, nitrogen, phosphorus, potassium and selected micronutrients.\n\nLow pH is common in parts of western Kenya and is corrected with agricultural lime. Do not apply lime without a test result.