Transcript Module VI: Nutrient Deficiency Symptoms

Module VI: Nutrient Deficiency Symptoms
Lesson 3: Deficiency Symptoms of Secondary Nutrients
Unit 2: Sulfur Deficiency Symptoms
After completing this Unit, you should be able to
answer:
1. Explain why sulfur deficiency has become
important in chili pepper recently?
2. Describe the leaf symptoms due to sulfur
deficiency in chili pepper ?
3. How do you differentiate the symptoms between
sulfur and nitrogen deficiencies in chili pepper ?
Module VI: Nutrient Deficiency Symptoms
Lesson 3: Deficiency Symptoms of Secondary Nutrients
Unit 2: Sulfur Deficiency Symptoms
It is only recently that deficiency of sulfur has become
common in many crops including chili pepper.
This situation is due to the recent use of high analysis
fertilizers like Di-Ammonium Phosphate (DAP) and urea,
and organic pesticides containing very little sulfur
resulting in sulfur deficiency.
Module VI: Nutrient Deficiency Symptoms
Lesson 3: Deficiency Symptoms of Secondary Nutrients
Unit 2: Sulfur Deficiency Symptoms
Sorghum plants deficient in sulfur
lack vigor, are stunted, pale green
to yellow in color, and have thin
stems.
Compare the dark green healthy plants
(left) with the pale yellow sulfur
deficient plants (right).
Module VI: Nutrient Deficiency Symptoms
Lesson 3: Deficiency Symptoms of Secondary Nutrients
Unit 2: Sulfur Deficiency Symptoms
Yellowing of leaves will be seen on
young (top) leaves while the older
leaves remain dark green.
Module VI: Nutrient Deficiency Symptoms
Lesson 3: Deficiency Symptoms of Secondary Nutrients
Unit 2: Sulfur Deficiency Symptoms
Yellowing of leaves also is characteristic of
nitrogen deficiency. But, in this case, yellowing
always starts with older leaves (bottom leaves)
and proceeds upward.
On the contrary, yellowing of leaves due to sulfur
deficiency is more marked in the younger leaves
(top leaves). Only in case of severe sulfur
deficiency, the older leaves also may turn pale
yellow.
Module VI: Nutrient Deficiency Symptoms
Lesson 3: Deficiency Symptoms of Secondary Nutrients
Unit 2: Sulfur Deficiency Symptoms
With this, the Unit 2 on Sulfur Deficiency
Symptoms in chili pepper in this Lesson
concludes.
The last Unit in this Lesson deals with the
deficiency symptoms of magnesium in chili
pepper.