agronomy MCQs – Page 12

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

agronomy Mcqs

221. Fertilizer requirements of wheat under medium loamy soil is________________?
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A. 100-70 NP kg/ha

B. 110-60 NP kg/ha

C. 75-90 NP kg/ha

D. 136-85 NP kg/ha

222. Genus of cotton is___________________?
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A. Hirsutum

B. Gassypium

C. Triticum

D. Hordeunt

223. The major source of foreign exchange earning is________________?
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A. Cotton

B. Wheat

C. Jute

D. Sugarcane

224. The role of boron and zinc has been recognized in crop_________________?
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A. Mustard

B. None of these

C. Sugarcane

D. Rice

225. Allelocliemicals may enter in the soil through the process of_________________?
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A. Root exudation

B. Mass flow

C. Diffusion

226. In Raygistan area which districts of Sindh are included______________?
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A. Hyderabad and N.Shah

B. Sukkar and. Khairpur

C. Karachi

D. None of the above

227. Zinc deficiency is generally observed in_________________?
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A. Vegetables

B. Race

C. Cotton

D. Wheat

228. Soil water in excess of hygroscopic and capillary water which moves downward through the soil by the force of gravity is called______________?
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A. sub-surface water

B. Gravitational water

C. Capillary water

D. Run off water

229. High density grains are found mostly at___________________?
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A. All the above

B. Middle of panicle

C. Top of panicle

D. Bottom of panicle

230. Auxins and cytokinins are__________________?
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A. Herbicides

B. Fungicides

C. Growth regulators

D. Insecticides

231. Allelopathy interaction between plants playa crucial role in___________________?
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A. Ecosystems

B. Community

C. Both a and b

D. non of there

232. Seed rat of American cotton per acre is__________________?
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A. 10-12 kg

B. non of these

C. 6-8 kg

D. 15-18 kg

233. In wheat, production of certified seed needs an isolation distance of____________________?
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A. 4 Meters

B. 2 Meters

C. 5 Meters

D. 3 Meters

234. The experimental design which control fertility level in two directions is known as________________?
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A. RBD

B. LSD

C. SPD

D. AD

235. The allelochemicals are broadly classified as_______________?
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A. Phenolics and. terpenoids

B. Trytophan

C. non of there

D. Cytokinin and ethylene

236. Plants having no defined limits of vegetative and reproductive element is called______________?
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A. Absolute growth

B. Assimilation

C. Determinate growth

D. Indeterminate growth

237. Among the cotton exporting countries the number of China is________________?
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A. 4<sup>th</sup>

B. 2nd

C. 3<sup>rd</sup>

D. 1<sup>st</sup>

238. Mg in plants act as___________________?
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A. Protein activator

B. Enzyme activator

C. Starch activator

D. None of the above

239. Gaseous loss of a substance from the soil or from fertilizer or manure is called_________________?
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A. Evaporation

B. Evapotranspiration

C. Volatilization

D. Transpiration

240. Annual rye grass releases a chemical through its root that prevents________________?
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A. Crop seeds

B. weed seed

C. Both a and b

D. non of these

Showing 221 to 240 of 308 mcqs