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Agriculture Mcqs 7387 MCQs [All-Courses]

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Agriculture MCQs cover fundamental and applied concepts related to farming, crop production, soil science, irrigation, fertilizers, plant breeding, pests, and agricultural economics. This topic is designed to strengthen conceptual understanding and problem-solving skills through objective questions. It is especially useful for competitive exams such as PPSC, FPSC, KPPSC, BPSC, NTS, OTS, and other testing services, helping candidates prepare with exam-oriented and up-to-date agricultural knowledge.

All Topics  7387

From the point of view of crop production, Soil testing refers to______________?
A Laboratory analysis assessing plant available nutrient status
B Collection of plant leaves samples only
C Salinity & elemental toxicity of a soil
D Both A & C
Correct Answer: Both A & C
In flood rice, snail feed on bacteria called__________________?
A Helix
B Limnea
C Azolla
D None of the above
Correct Answer: Azolla
The diagnostic techniques used in evaluating soil nutrient status and determining fertilizer requirements of the crop include:
A Nutrient deficiency symptoms & field experimentation
B Greenhouse pot experimentation & soil testing
C Plant analysis
D All of the above
Correct Answer: All of the above
Which bacteria convert nitrite to nitrate___________________?
A Frankia
B Nitrobacter
C Pseudomonas
D None of the above
Correct Answer: Nitrobacter
The major soil fertility problems in Pakistani soils deficiencies of N, P and Zn. Deficiencies K, Fe, and B also occur in specific crop genotypes or soil types, while deficiencies of S, Cu, and Mn are negligible. however, the common nutrient deficiencies are_________________: and some micronutrients including Mo?
A N, P, K
B Ca, Mg, S
C both A & B
D The above statement is wrong
Correct Answer: both A & B
Examples of macrobiota are______________________?
A Enchytrids
B Fungus
C Bacteria
D Plants
Correct Answer: Enchytrids
According to a latest research, Pakistan is predominantly a dryland country; 80% of its land area is arid and semi arid, 12% sub-humid and 8% under humid climate. Thus , soils of arid & semi-arid regions are vulnerable to a wide range of degradation process. As the case in arid and semi-arid climates elsewhere in south-central/southern Asia and Sub-Saharan Africa; _________________ are among the major causes of soil degradation and desertification?
A Drought stress
B Accelerated erosion & salinization
C Depletion of soil fertility and SOM
D All of the above
Correct Answer: All of the above
Part of soil which is in contact with root surface is called___________________?
A Rhizoshpere
B Lithoshpere
C Atmoshpere
D None of the above
Correct Answer: Rhizoshpere
The kind, rate and intensity and pedogenic processes are controlled by ________ ,soil-forming factors?
A 6
B 7
C 4
D None of the above
Correct Answer: None of the above
Point of zero change means____________________?
A All the covalent bonds
B Zero charge at surface
C All are ionic bond
D None of the above
Correct Answer: Zero charge at surface
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