Agriculture - Mock Test 75

Question 741

Zn, Fe, Cu, B, Mn and Mo are called micronutrient, because they are?

A) Nutrients of microscopic significance B) Nutrients, which produce microscopic effects C) Nutrients that is required in minute qualities D) Nutrients required by micro-organisms

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Question 742

By the formulae d = PW x As x D/100 we can calculate?

A) Quantity of irrigation water B) Depth of irrigation water C) Quality of irrigation water D) None of the above

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Question 743

Bulk density is denoted by?

A) Weight of the given soil sample volume of the same soil sample (g/cm³) B) Volume of the soil sample/Weight of the soil sample (g/ C) Weight of the given soil sample/Volume of the given soil sample D) None of these

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Question 744

Buffering capacity of soil means resistance to a change in?

A) Soil microbial activity B) Soil acidity C) Soil pH D) Base saturation

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Question 745

Bray suggested certain modification in the Mischerlich equation?

A) dy/dx = (A - Y)C B) A = B (1 - Y)/Y C) Log (A - Y) = log A - CX D) Log (A - Y) = log A - C1 b - CX

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Question 746

Bone meal is well suited for?

A) Alkaline soil B) Neutral soil C) Acidic soils D) All of these

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Question 747

Blue-green algae grows best in?

A) Upland rice B) Jute C) Lowland rice D) Sorghum

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Question 748

Azospirillum fixes nitrogen mainly in?

A) Sorghum B) Cereals C) Sugarcane D) Legumes

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Question 749

Black soils have ______ amount of lime and P?

A) High B) Low C) Very low D) Very high

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Question 750

Black soils are _____ when wet and very hard when dry?

A) Very hard B) Very soft C) Soft D) Hard

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