Hydroponics on the Alkaline Edge: Crops That Cope with High pH
Update: 2025-11-19
Description
Dr. Russell Sharp explores plants and crops that tolerate very alkaline soils and how that knowledge applies to hydroponic systems. The episode covers common tolerant crops (barley, sugar beet, cotton, sorghum, alfalfa, buffalo/Bermuda grass) and highly tolerant species like Atriplex as a possible spinach substitute in high‑pH water.
Practical tips include expected pH ranges, when alkalinity and salinity overlap, and suggestions for experimenting with gardener's orache (Atriplex) in hydroponics. Contact the host for advice on adapting fertigation and crop choices to alkaline conditions.
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