Agriculture - Mock Test 78

Question 771

Aspergillus niger test is used for?

A) Cu & Mg B) Cu & Zn C) Mg & Zn D) N & S

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Question 772

As plants grow to maturity, the concentration of plant nutrients changes. What kind of change occurs in respect of N, P, K, Ca and Mg?

A) Concentration of all 5 elements decreases B) N and P decrease K, Ca and Mg increase C) N, P and K decrease K, Ca and Mg increase D) N, P and K increase, Ca and Mg decrease

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Question 773

Arrangement of soil particles is referred to as?

A) Soil structure B) Soil texture C) Soil organization D) None of the above

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Question 774

Aridisols soils re found in the region of?

A) Humid B) Arid C) Submerged D) None of these

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Question 775

Application of nitrogen in pulses at the time of planting is known as?

A) Additional dose B) Starter dose C) Synergistic dose D) Basic dose

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Question 776

Apatite is a group of minerals which mainly contains?

A) Sulphur B) P2O5 C) N2 D) Titanium

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Question 777

Anion exchange capacity is found maximum in the case of?

A) Kaolinite B) Montmorillonite C) Illite D) None of these

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Question 778

Anaerobic environment of paddy soil is responsible for gaseous loss of fertilizer nitrogen by?

A) Ammonification B) Nitrification C) Denitrification D) Volatilization

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Question 779

An epipedon, which has dark colour low in base saturation, is called?

A) Umbric epipedon B) Histic epipedon C) Ochrie epipedon D) Anthropic epipedon

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Question 780

An argillic sub-surface horizon with high E.S.P. (more than 15) is called?

A) Cambic horizon B) Natric horizon C) Agric horizon D) Oxic horizon

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