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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

What is the effect of application of P2O5 fertilizer to a green manure leguminous crop in the availability of phosphorus to the succeeding crop?
A Green manure increases the availability in organic from to the next crop
B It does not affect the availability of phosphorous to succeeding crop
C Greater amount of phosphorus is taken up and converted into organic form, which is released on decomposition of green matter
D It fixes the P2O5 through humus and reduces the availability..
Correct Answer: It does not affect the availability of phosphorous to succeeding crop
Ground water refers to the________?
A Water quality determination
B Aquifer location
C Water regulation
D Installation of wells
Correct Answer: Aquifer location
The percentage of calcium content in single superphosphate?
A 24%
B 25%
C 19.5%
D 30%
Correct Answer: 19.5%
The tension of the water at the upper plastic limit is equivalent to pF value:
A 1
B 2
C 2.5 – 3.5
D 0.5
Correct Answer: 0.5
Clay and humus particles are referred to as colloids and are less than 0.002mm. Due to their small size, colloids have ________________ surface area which provides surface for adsorption, catalysis, precipitation and microbial colonization:
A Extremely low
B Extremely high
C Very little
D None of these
Correct Answer: Extremely high
Soil samples are collected:
A From the field with immediate application of fertilizer or amendments
B Field with upper white layer of salts
C Boundaries of the field
D None of these
Correct Answer: None of these
_________ erosion is the removal of a thin layer of soil by water acting over the whole surface. This type of erosion damaged very fertile lands located on slopes, some of which have been eroded to a depth of about 15 cm.
A Rain splash rill erosion
B Stream bank erosion
C Sheet erosion
D Gully erosion
Correct Answer: Sheet erosion
In Pakistan there is general deficiency of rainfall. It varies from 125 mm annually in upper Sindh to about 900 mm in the sub-mountainous of northern Pakistan. In Balochistan the mean annual rainfall is about 200 mm, diminishing to ________ mm in the desert of Kharan:
A 100 mm
B >70 mm
C <50 mm
D None of these
Correct Answer: <50 mm
Losses of soil water not includes_________?
A Direct evaporation from the soil & transpiration from vegetation
B down-ward drainage
C Hydroponics loss
D Surface run-off from the field
Correct Answer: Hydroponics loss
The relative abundance of three types of rocks ( igneous-metamorphic- sedimentary) in the earth’s crust is_________?
A 12.5 % -12.5 % – 75%
B 64.7 % – 27.4 % – 7.9 %
C none of A & B
D 7.9% – 27.7 % – 64.4
Correct Answer: 64.7 % – 27.4 % – 7.9 %
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