[VSQ]SOIL SCIENCE, SET 11

SOIL SCIENCE

Q.1

The soils which are most suitable for most of the crops are.

Ans. 

Sandy loams.

Q.2

Soil structure which is best for cultivation is.

Ans. 

Crumby structure.

Q.3

Vermiculate is a type of mineral.

Ans. 

Limited expanding 2: 1 type mineral.

Q.4

Micas are type of mineral.

Ans. 

Non Expanding type mineral.

Q.5

CEC of humus.

Ans. 

150-300 C mol (p±)/kg soil.

Q.6

C:N ratio of Legumes.

Ans. 

20:1 to 30:1.

Q.7

C:N ratio of F.Y.M.

Ans. 

100:1.

Q.8

C.E.C. of vermiculate.

Ans. 

80-150 C mol (P±) /kg soil.

Q.9

CEC of montmorillonite.

Ans. 

80-100 C mol (P±) /kg soil.

Q.10

N, P, K % in F.Y.M.

Ans. 

0.5% N, 0.2% P2O5, 0.5% n2O.

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