agronomy MCQs – Page 13

Practise focused agronomy questions with marked answers for exam preparation and subject revision.

agronomy Mcqs

241. The ratio of treatment variance to error variance is known as_________________?
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A. I-value

B. Critical difference

C. F-value

D. Correlation

242. Ratio of crop yield to the amount of water utilized is called______________?
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A. Soil water use

B. Crop water use efficiency

C. Soil plant water relationship

D. Water intensity

243. Tillage is field operation which help in cutting, loosening and inverting the soil for_________________?
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A. Seed bed preparation

B. Transplantation

C. Irrigation

D. Fertilization

244. Root rot of cotton is a_________________?
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A. Fungal disease

B. Viral disease

C. Bacterial disease

245. The control and preservation of natural resources For present and future use is_________________?
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A. Environment

B. Biodiversity

C. Substainability

D. Conservation

246. The enzyme responsible for biological nitrogen fixation is________________?
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A. Lipase

B. Nitrogenase

C. Isomerase

D. Kinease

247. The actual amount H2O present in the air is called_____________?
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A. Relative humidity

B. Absolute humidity

C. Both A and B

D. non of these

248. Which one of the following is C4 plain_________________?
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A. Sugarcane

B. Make

C. All the above

D. Sorghum

249. One rooting hormone occurring naturally in plant is ___________________?
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A. Naphthalene acetic acid

B. Indolebutyric

C. None of the above

D. Indolacetic acid

250. Primary air polluted is________________?
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A. SO<sub>3</sub>

B. SO2

C. None

D. SO<sub>4</sub>

251. Allelochemicals are used as growth regulators and natural pesticides to promote__________________?
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A. Sustainable agriculture

B. Improve agriculture

C. Both a and b

252. A process in which most of the organisms are killed is known as_________________?
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A. Pasteurization

B. Heating

C. Neutralization

D. Sterilization

253. Crop rotation means growing_________________?
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A. Growing green manures

B. Growing different crops

C. Same craps

D. Growing fodder crops

254. Progeny of nucleus seed is called_________________?
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A. Breeder seed

B. Basic seed

C. Foundation seed

D. All the above

255. The wearing away of the land surface by wind, water, ice or other geological agent is called__________________?
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A. fertility depletion

B. Seepage

C. Soil conservation

D. Erosion

256. In wheat total crop N uptake per ton of grain is about__________________?
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A. 20-30 Kg

B. 70-80 Kg

C. 15-20 Kg

D. 50-60 Kg

257. England cotton was imported from the time in__________________?
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A. 1530 AD

B. 1500 AD

C. 1430 AD

D. 1435 AD

258. In cotton the recommended R x R distance is_________________?
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A. 90 cm

B. 45 cm

C. 75 cm

259. Maize plant belong to_________?
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A. C3 plant

B. CAM

C. None of above

D. C4 plants

260. Partially decomposed organic matter is termed as___________________?
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A. Farm yard manure

B. Composet

C. Humus

D. All the above

Showing 241 to 260 of 308 mcqs