Nutrient Deficiency Symptoms

NITROGEN - stunted growth and light or chlorotic foliage.
 
PHOSPHOROUS -  stunted, very dark green foliage; lower leaves
may become yellow between veins; monocots have
purple veins.

POTASSIUM - lower leaves with interveinal chlorosis;
browning leaf edges; brownish mottling.

CALCIUM - tip of shoot dies; interveinal chlorosis on
on upper leaves.
 
MAGNESIUM - lower leaves with interveinal bleaching or
chlorosis and dark green veins; leaf margins
may curl; leaves eventually die.
 
SULFUR - light green upper leaves with veins lighter
than surrounding tissue.

IRON - upper leaves develop interveinal chlorosis
with green veins.

MANGANESE - interveinal chlorosis of upper leaves; veins
have wider green bands; upper leaves may have
necrotic spots.
 
COPPER - veinal chlorosis starting in the middle leaves;
a few leaves suddenly wilt and die and then a
few more higher up, etc.

ZINC - malformation of leaves-leaves become
asymmetric.
 
BORON - dieback of shoot resulting in witch's broom
effect; flowers are deformed when open; stems
and petioles become brittle.

TOXICITY SYMPTOMS


NITROGEN - long internodes; crispy stem.

IRON - dark leaf edges.

MANGANESE - dark brown leaf veins; also iron deficiency
symptoms because too much manganese inhibits
iron uptake.
 
ZINC - copper deficiency symptoms.
 
BORON - necrosis of leaf edges.

Top | Home | Catalog Index | View Cart | Payment Information | Shipping Information | Contact Info | Privacy Policy | Site Map