Agriculture - Mock Test 73

Question 721

C-spacing of kaolinite is?

A) 7.39 A B) 8.39 A C) 10.0 A D) 14.0 A

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Question 722

Criteria of essentiality is given by?

A) Jean Baptist B) Liebig C) Arnon D) Julius von Suches

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Question 723

Continuous heavy rainfall leads to the formation of?

A) Saline soil B) Sodic soil C) Acid soil D) Saline-sodic soil

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Question 724

Conservation tillage tends to encourage?

A) High microbial population B) Lower number of earthworms C) Reduced soil fauna D) None of these

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Question 725

Commonly used method for enumeration of soil microbial population is?

A) Contact slide technique B) Microscopic count C) Dilution plate technique D) Microbial respirtion

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Question 726

Clay are classified as?

A) Primary minerals B) Tertiary minerals C) Hydrozy minerals D) Socondary minerals

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Question 727

Chlorosis refers to the?

A) Yellowing of the leaf tissues B) Burning of the leaf tissues C) Death of the leaf tissues D) Development of reddish brown colour on the leaves

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Question 728

Chlorosis is observed in upland rice due to deficiency of?

A) S B) Fe C) Zn D) Mn

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Question 729

Chlorite and hornblend are?

A) Mg minerals B) P minerals C) K minerals D) Na minerals

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Question 730

Chemical weathering governs mostly by the process?

A) Solution B) Hydration C) Hydrolysis D) All of these

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