Agriculture MCQs

2794 MCQs  (Page 247 of 280)

The indicator used for estimation of the soil available boron is_______?
A. Mixed indicator
B. Phenolpthalein
C. Diphenyle
D. Azomethine-h
What is the optimum temperature and pH for nitrifying bacteria ?
A. 30-35 c, ph 5.5
B. >35 c, ph less than 5
C. 25-40 c, ph 8-8.5
D. All of thses
Browning disease of rice is a_________?
A. Bacterial & fungal disease
B. Physiological disease
C. Viral disease
D. The above statement is wrong
1 meq of HCl is equal to_________?
A. 1.4 mg of n
B. 14 mg of n
C. 0.14 mg of n
D. 140 mg of n
The credit for identifying the essentality of nitrogen to plants goes to________?
A. Dr.muhammad sharif
B. Theodore-saussure
C. Shafiq baloch at.el
D. Sach and knoop