Free Agronomy MCQs with Answers

• A. Lucerne
• B. Arhar
• C. Both a & b
• D. Moong

Explanation: Lucerne, also called alfalfa, has comparatively good tolerance to saline conditions among these choices.

• A. Jowar
• B. Sugarcane
• C. Ground nut
• D. All of the above

Explanation: Jowar and groundnut are commonly grown under dryland conditions, whereas sugarcane requires substantial and fairly regular water.

• A. Puric acid
• B. Sulphuric acid
• C. Olic acid
• D. Both b & c

Explanation: Sulphuric acid and oleic acid are not regarded as acids present in gram leaves in this classification, whereas puric acid is listed.

• A. All of theseDownload Nature Guides
• B. The role played by an element is specific & can not be replaced by another element.
• C. The element is directly involved in the nutrition of the plant.
• D. In the absence of an element, its not possible for plant to complete its vegetative cycle.

Explanation: An element is essential only when its absence prevents completion of the plant's life cycle, its function cannot be replaced, and it…

• A. Deep Tillage
• B. Conservation Tillage
• C. Both a & b
• D. None of these

Explanation: Conservation tillage includes systems that leave at least 30% residue cover after planting to reduce water erosion and runoff.

• A. Soil conservation hedges
• B. Woody Hedgerows
• C. Hedgerows intercropping
• D. All of these

Explanation: Hedgerows intercropping, also called alley cropping, places rows of woody plants close together with annual crops grown in the alleys…

• A. Balance use of NPK fertilizers according to the need of crops.
• B. Following proper crop rotation (shallow rooted and deep root crops) in the cropping session.
• C. Regular use of FYM, Composts, acidic mulches, Green manures and Organic fertilizers to increase OM content of Soil.
• D. All of the aboveCrops & Seed

Explanation: Balanced fertilizers supply crop nutrients, rotation diversifies rooting patterns, and FYM, composts, green manures and other organic…

• A. Austria
• B. Germany
• C. Pakistan
• D. Both a & b

Explanation: IUFRO, the International Union of Forest Research Organizations, has its headquarters in Vienna, Austria.

• A. Para grass
• B. Kallar grass
• C. Giant star grass
• D. All of the above

Explanation: Kallar grass, or Leptochloa fusca, is a highly salt-tolerant forage grass widely used for reclaiming saline and waterlogged soils.

• A. Higher total pore space
• B. Lowe bulk density
• C. None of the above
• D. Higher bulk density

Explanation: No-tillage leaves the soil undisturbed and avoids loosening by ploughing, so bulk density commonly increases, especially in the upper…

• A. All of these
• B. Feed
• C. industrial raw materials
• D. Food

Explanation: Harvested crops remove nutrients whether their products are eaten as food, fed to animals, or processed as industrial raw materials.

• A. N
• B. B
• C. K
• D. P

Explanation: Boron is especially important for pollen germination and pollen-tube growth, so deficiency often causes poor fertilization and fruit or…

• A. Beijerinck
• B. Fred
• C. P.K dey
• D. None of the above

Explanation: P. K. Dey is credited in agricultural literature with reporting nitrogen fixation by blue-green algae in paddy fields.

• A. Potassium
• B. Phosphorus
• C. Magnesium
• D. All of the above

Explanation: Potassium is called the chemical policeman of plants because it regulates enzyme activity, water balance, stomatal movement and several…

• A. Hydrogen
• B. Both A & B
• C. Oxygen
• D. None of these

Explanation: Hydrogen and oxygen participate in oxidation-reduction reactions and energy transformations in plant metabolism, so they are described as…

• A. Reduced soil disturbance through no-till or minimum till
• B. Residue return to keep at least 30% of soil covered
• C. all of the above
• D. Crop rotations for better utilization of available water & nutrients

Explanation: Conservation agriculture combines minimum soil disturbance, residue cover of about 30% or more, and crop diversification or rotation.

• A. 65 - 75%
• B. 72 - 62%
• C. 75% - 80%
• D. 85 - 95%

Explanation: Fresh plant material commonly contains roughly 85 to 95% water, while only a small fraction is dry matter.

• A. 100 mm
• B. <50 mm
• C. >70 mm
• D. None of these

Explanation: Kharan lies in the arid desert region of Balochistan, where annual rainfall can fall below 50 mm.

• A. Lasbella
• B. Sawat
• C. Multan
• D. Shikarpoor

Explanation: In Pakistan, nitrophos fertilizer is manufactured at the Pak-Arab Fertilizer complex in Multan.

• A. Faisalabad
• B. Jaranwala
• C. Haripur
• D. All of these

Explanation: National Fertilizer Corporation plants associated with locally manufactured single superphosphate include facilities at Faisalabad…