Dewilde Trading Co Soil Test Kit — 140 Liquid Tests for pH, NPK & Ammonia with 2026 Instructions

The Dewilde Trading Co Soil Test Kit gives you a complete, at-home fertility check with about 140 liquid tests for pH, nitrogen, phosphorus, potassium and ammonia.

Whether you manage a lawn, raised beds, houseplants or a small farm, this updated 2026 kit provides a practical way to measure the key chemical indicators that affect plant growth. The kit groups approximately 40 tests for pH, phosphorus and potassium, roughly 20 tests for nitrogen, plus ammonia checks — delivering repeatable, on-site results without lab fees. Clear color charts and revised instructions simplify sampling, mixing and reading so you can make timely nutrient and lime recommendations.

How do I use the kit to test garden or potted soil?

Collect a small, representative sample from the root zone, mix with the supplied reagent, and compare the resulting color to the included chart. Each test is single-parameter and works best when you follow the step-by-step 2026 instructions for consistent timing and sample volume.

• Take multiple subsamples from a 6–8 inch depth for beds; 2–3 inches for pots.
• Use the provided dropper and test tubes to avoid cross-contamination.
• Match colors in natural light and record results for trends.
• Repeat tests seasonally or after major amendments.

What do the pH and nutrient readings tell me about soil health?

pH reveals how acidic or alkaline your soil is, which controls nutrient availability. Nitrogen, phosphorus and potassium values show current nutrient supply so you can choose the right fertilizer type and rate, while ammonia checks help identify recent fertilizer presence or mineralization activity.

• Low pH: may need lime; high pH: may need sulfur or acidifying amendments.
• Nitrogen results guide timing for side-dress or starter feeds.
• Phosphorus and potassium readings steer base fertilizer or compost choices.
• Ammonia detects fresh nitrogen sources or recent manure applications.

How reliable are these liquid color tests compared with laboratory analysis?

Liquid color kits deliver practical, rapid estimates of nutrient and pH levels suitable for household and small-farm decisions. While not as precise as a certified lab report, these tests are accurate for routine monitoring and immediate corrective actions when used correctly.

• Calibrated color scales for each parameter reduce reading error.
• Best accuracy comes from consistent sampling and timing adherence.
• Use lab testing for regulatory needs or complex soil troubleshooting.
• Repeat tests to confirm trends rather than relying on single readings.

What should I do after I get my soil results?

Interpret test values to match plants’ nutrient needs: amend pH first, then correct macronutrient shortfalls with targeted fertilizers or organic inputs. Keep a simple log of results, treatments and outcomes to refine your approach season to season.

• Adjust pH before applying phosphorus-sensitive fertilizers.
• Apply nitrogen in split doses per crop demand to reduce loss.
• Add phosphorus or potassium only where tests show deficiency.
• Retest 4–8 weeks after amendments to confirm effects.

Who is this for: gardeners, landscapers and hobby farmers who want an affordable, repeatable way to monitor soil fertility without mailing samples to a lab. The Dewilde Trading Co kit suits beginners and experienced users who need multiple tests across seasons — ideal for maintaining lawns, vegetable plots, greenhouse plants, ornamental beds and small-acreage plots where timely decisions improve plant performance.