Which of the following requires Silicon (Si) for its growth?
Maize
Groundnut
Rice
Green grain
Correct answer is C
No explanation has been provided for this answer.
A soil may be called as alkaline when the pH of the soil is more than
6.5
5.5
7.0
5.0
Correct answer is C
A soil may be called as alkaline when the pH of the soil is more than 7.0 pH scale than is less than 7.0 is acidic while pH scale that is greater than 7.0 is alkaline. pH scale that is equal to 7.0 is neutral. Therefore, choice C is correct.
Viral disease
Bacteria disease
Fungal disease
Deficiency of zinc disease
Correct answer is C
No explanation has been provided for this answer.
Which of the following nutrient is highly immobile in plants?
B
Mg
K
P
Correct answer is A
Boron (B) is highly immobile because of its size.
Ideal pH for coffee cultivation is
4.0 - 4.5
5.0 - 5.5
6.0 - 6.5
6.5 - 7.5
Correct answer is D
No explanation has been provided for this answer.