The Diagnosis of Mineral Deficiencies in Plants by Visual Symptoms
Published by His Majesty's Stationary Office — 1943
— Crown Copyright Reserved —
HOPS IN SAND CULTURE — from the 1951 edition
by Thomas Wallace, M.C., D.Sc., A.I.C.
268. Hop Leaves
Nitrogen deficiency
Small, pale green, becoming yellow; petiole red tints.
269. Hop Leaves
Phosphorus deficiency
Small, pale green, becoming yellow; petiole red tints.
270. Hop Leaves
Calcium deficiency
Small; margins slightly chlorotic becoming spotted and scorched.
271. Hop Leaves
Magnesium deficiency
Striking marginal and intervenal chlorosis and necrosis.
272. Hop Leaves
Potassium deficiency
Small; bluish green, may be slightly chloric near margins; margins brown
scorch which later extends intervenally towards midribs.
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Color Pictures of Mineral Defeciencies in Plants – 1943
Using Hydroponics to Understand the Earth's Life Processes
Understanding Colloidal Suspensions
" The Art of Healing Ourselves "
The Diagnosis of Mineral Deficiencies in Plants by Visual Symptoms
by Thomas Wallace, M.C., D.Sc., A.I.C.
on the Atomic Level
The Tortoise Shell Hydroponic Reference Center
Plants need to absorb what you feed them.
Only You can bring Good Health and Healing into Your Body.