SIGN OF NUTRIENT DEFICIENCIES IN SOIL

Nitrogen

1.  Stunted growth
seen in the size and shape of the leaves.

2.   Yellowing
of the leaves toward the bottom of plant while those toward
the top are green.

3.   Leaves
are pale to yellow until they get dried.

4.   Formerly
thick leaves becomes thinner

 

Excess 

1.  Over grown
leaves

2.  soft body,
water and attracts insects and diseases

 

Phosphorus

1.  The plant does
not grow.

2.  Leaves are pale
, then turn dark green.

3.  Red stains
appear on the leaves, or dark red or purple at the base or
middle of the leaves.

4.  Leaves turn
light ash green with burnt edges if the deficiency is
severe.

 

Potassium

1.  Leaves turn ash
gray, especially toward the end.

2.  Stems are weak,
easily break such as in corn and sorghum

3.  Harvest is
poor

4.  Edges and base
of leaves appear burnt and shriveled, and turn yellow to brown
among mature leaves.

 

Iron

1.  The edges of
the leaves are yellowish; this spreads until only the veins of
the leaves are green.

 

Toxicity:

1.  Leaves turn
yellowish to brown until dry up, or

2.  Until they
become dark brown with course veins

 

Zinc

1.  veins of mature
leaves become silvery

2.  half of the big
veins of the leaves die

3.  leaves get
smaller and change shape

4.  the joints are
shorter and stunted

 

Chlorine

1.  growth of the
plant is stunted

2.  fruit bearing
is poor

3.  the plant gets
yellowish or wilted and dried

4.  color becomes
cooper like

 

 

from: Philippine
Farmer’s Journal Supplement

August
1980

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