Summary

Explains how to read and use a raised-bed or potting-mix test report for vegetable gardening. Clarifies how soilless media differ from soil, why they require different tests, and how pH, soluble salts (EC), and nitrogen forms affect plant growth. Covers smart fertilizer use in containers, including why compost usually can’t supply all nutrients, and why over-fertilizing can cause salt stress and nutrient problems. Includes practical guidance on granular, controlled-release, and water-soluble fertilizers, with rate tables for common bed/container sizes and in-season feeding schedules tied to irrigation.