Question 1
List and explain in detail the factors affecting S mineralization and immobilization.
Question 2
A corn field appears to have an iron deficiency, with young leaves developing interveinal chlorosis which progresses rapidly over the entire leaf. Which of the
following application methods should be used for iron management in the corn field?
◦ Wet leaves with the fertilizer and repeat as needed.
◦ Spray band over the row at second trifoliate.
◦ Apply the fertilizer thrice with a two week interval.
◦ Apply the fertilizer at two week intervals until symptoms disappear.