# Pfeffer's solution

> English word · Proper noun

## Definitions
1. A plant nutrient solution consisting of calcium nitrate, potassium nitrate, magnesium sulfate, monopotassium phosphate, potassium chloride, ferric chloride, and water.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/pfeffer-s-solution