Q726
Fe concentration used for foliar spray is
A.
0.2%
B.
0.4%
AnswerC.
0.05%
D.
0.3%
Answer: Option B
Solution
Answer: Option B
Solution:
Fe concentration used for the foliar spray is 0.4%.The application of foliar sprays is a common means of correcting Fe deficiency in crops. Applying chelated iron to the soil is the most effective way of correcting yellow leaves as it requires just a single application.
Foliar spray is used when rapid response is needed to correct a chlorotic condition. A foliar spray with iron sulphate or iron chelate solution may be applied when the tree is in full leaf.