Color Pictures of Mineral Deficiencies in Onions

from

The Diagnosis of Mineral Deficiencies in Plants by Visual Symptoms
by Thomas Wallace, M.C., D.Sc., A.I.C.

Published by His Majesty's Stationary Office — 1943

— Crown Copyright Reserved —


ONIONS IN SAND CULTURE — from the 1951 edition

Onion Plant - Potassium deficiency 
247. Onion Plant

Potassium deficiency

Dying back of leaves from tips and dying off of older leaves.

 
Leek Plants - Nitrogen and phosphorus deficiencies 248. Leek Plants

Nitrogen and phosphorus deficiencies

Left: nitrogen deficient, growth dwarfed and thin, leaves pale green, tip die-back. Right: phosphorus deficient, growth dwarfed and thin, leaves dull green, tip die-back.

 
Leek Plants - Calcium deficiency 249. Leek Plants

Calcium deficiency

Growth dwarfed; leaves chlorosis developing from tips followed by die-back.

 
 

Index

  • Flax
  • Hops
  • Kale
  • Lettuce
  • Maize
  • Mangold
  • Oats
  • Onion
  • Parsnip
  • Pear
  • Peas
  • Plum
  • Potatoes
  • Radish
  • Rape
  • Rye
  • Spinach
  • Sugar Beet
  • Swede
  • Table Beets      
  • Tomatoes
  • Turnips
  • Wheat
  • Top of Page

    The Diagnosis of Mineral Deficiencies in Plants by Visual Symptoms

    by Thomas Wallace, M.C., D.Sc., A.I.C.

    Color Pictures of Mineral Defeciencies in Plants – 1943


    Using Hydroponics to Understand the Earth's Life Processes
    on the Atomic Level

    The Tortoise Shell Hydroponic Reference Center

    Understanding Colloidal Suspensions
    Plants need to absorb what you feed them.

    " The Art of Healing Ourselves "
    Only You can bring Good Health and Healing into Your Body.

    Tortoise Shell Life Science Puzzle Box Front Page

    View this page Full Frame