Agriculture - Comprehensive Mock Test 3

Question 21 Medium

What is the P2O5 content of various rock phosphates?

A) 20 - 35% B) 35% C) 11 - 20% D) 18 - 20%

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Question 22 Medium

The value above ______ ppm is associated with boron toxicity?

A) 150 B) 200 C) 250 D) 300

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Question 23 Medium

The pH of a solution, containing 1 x 10-7 gm ion/ml. will be?

A) 6 B) 7 C) 8 D) 9

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Question 24 Medium

The organism, which can survive at the temperature 10 - 15?C, is called

A) Psychrophylic B) Mesophytic C) Thermoduric D) Thermophilic

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Question 25 Medium

The organic matter of soils is ordinarily obtained by multiplying the organic carbon content by?

A) 1.52 B) 1.62 C) 1.72 D) 1.82

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Question 26 Easy

The number of functional plant nutrient is?

A) 6 B) 20 C) 16 D) 10

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Question 27 Medium

The number of essential elements required for the growth of higher plant is?

A) 3 B) 6 C) 8 D) 16

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Question 28 Medium

The microbes, which can survive at the temperature 25 - 30 ?C is termed as?

A) Thermoduric B) Mesophylic C) Psychrophylic D) Thermophytic

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Question 29 Medium

The global average of solar radiation reaching the earth is?

A) 20% B) 30% C) 40% D) 50%

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Question 30 Medium

The colloidal surface area in the upper 15 cm of a hectare of a clay soil could be as high as km?

A) 700 B) 7,000 C) 70000 D) 700000

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