[VSQ]SOIL SCIENCE, SET 8

SOIL SCIENCE

Q.1

Acid soils are mainly found in the state

Ans. 

Kerala State.

Q.2

Excess of Ca in soil then availability of phosphorus

Ans. 

Decreases.

Q.3

C:N ratio for normal soils are-

Ans. 

C:N ratio 10:1.

Q.4

Study of soils in relation to higher plants is called-

Ans. 

Edaphology.

Q.5

Dimeter of clay particles is-

Ans. 

<0.002mm.

Q.6

N% in Ammonium Chloride.

Ans. 

26% N.

Q.7

N% in urea.

Ans. 

46% N.

Q.8

Biuret should be according to fertilizer control order.

Ans. 

< 1.5%.

Q.9

N% in calcium cyanamide.

Ans. 

20.6%.

Q.10

Highest N% in fertilizer.

Ans. 

Aqueous Amonia (80% N).

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