Page 412 - Applied Pharmacognosy

Chemical properties

• The chemical property of soil may be modified by
the presence of: humus, organic fertilizers, chalk and
lime.

• The balance of elements is very essential for Health,
Growth and Biochemical functioning of plants.

• 1- Ca++ element is essential for normal nutrition.
• Calciphobous plants…….(Pinus & Digitalis)
• Alkalinity………………...chalky soil (Ca CO3).

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