The synthetic herbicide 2,4-D is derived from which group of compounds?
Correct answer D. Auxins
Subject / 2,686 questions
Agriculture MCQs
Page 131 of Agriculture multiple-choice questions with answers. Tap an option to check yourself.
Page 131 of 135
How much phosphorus does a wheat crop take up in total per tonne of grain?
Correct answer B. 2-3 kg
At what soil pH is nitrogen mineralisation affected?
Correct answer B. Above 6
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A low soil pH usually indicates which condition?
Correct answer D. Low N and Ca
In cereal crops, where is most of the potassium (K) concentrated?
Correct answer C. Straw
Approximately how much land in Pakistan is affected by water erosion?
Correct answer A. 13.05 million ha
The total length of Pakistan’s canal system is more than how many kilometres?
Correct answer A. 58,000 km
What term describes the number of crops grown on the same land in a year, expressed as a percentage?
Correct answer B. Cropping index
What is the movement of a substance across a biological membrane against its concentration gradient called?
Correct answer C. Active transport
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What is the pest control approach called that uses natural predators and parasites without serious harmful effects on the environment?
Correct answer C. IPM
Who suggested the use of tetrazolium staining to assess seed quality?
Correct answer B. Moore (1973)
What is the progeny of nucleus seed called?
Correct answer C. Breeder seed
Watercourses are lined in order to prevent what?
Correct answer B. Seepage
What kind of stem do herbaceous plants have?
Correct answer B. Non-woody stem
Which soil is best suited to growing cotton?
Correct answer C. Clay loam soil
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What are crops grown for their grain called?
Correct answer D. Cereal crops
What is the condition in which green plants become unhealthy and pale yellow in colour called?
Correct answer C. Chlorosis
What is it called when more than one crop is grown on the same land in a season?
Correct answer A. Intensive cropping
How is wheat predominantly pollinated?
Correct answer C. Self-pollinated crop
By how much can weed infestation reduce rice yields?
Correct answer A. 20-60%