Marijuana Grow Basics: The Easy Guide for Cannabis Aficionados by Cervantes Jorge
Author:Cervantes, Jorge [Cervantes, Jorge]
Language: eng
Format: mobi
Tags: Gardening
Publisher: Van Patten Publishing
Published: 2009-03-31T16:00:00+00:00
Let 10–20 percent of the nutrient solution drain from the growing medium after each irrigation cycle to help maintain EC stability. The runoff carries away any excess fertilizer salt buildup in the growing medium.
Bad Water
If the raw irrigation water has a reading of more than 300 ppm, or the sodium level is above 50 ppm, or the calcium/magnesium levels make water “hard,” you should use a reverse osmosis device to filter the mineral salts and make “pure” water.
Salt buildup, as seen on this showerhead, is a problem when using hard water (sodium chloride) or other mineral-laden water.
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