How to Calculate PPM for Fertilizer. Many gardening guides and plant-care instructions specify fertilizer concentrations in parts per million (ppm). The authors of such guides do this to avoid ambiguity. Instructions such as "fertilize with 200 ppm nitrogen solution" are much more precise than "fertilize with house-plant fertilizer at one-tenth...
Table of contents How to Calculate PPM for Fertilizer
Things You'll Need 01:07
Calculating the Amount of Fertilizer to Achieve a Given PPM 01:25
Calculating the PPM of an Already-Prepared Fertilizer Solution 03:13
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