Factors Affecting Crop Production
Time Left
--:--:--
A-
A+
Switch Full Screen
Question No. 1
Marks
+1
-0
Time
0:00
☰
The optimum soil pH range for the growth of most agricultural crops is generally considered to be:
A.
3.5 - 4.5
B.
5.5 - 7.5
C.
8.0 - 9.0
D.
2.0 - 3.0
Question No. 2
Marks
+1
-0
Time
0:00
☰
Which macronutrient is primarily responsible for vigorous vegetative growth and dark green color in plants?
A.
Phosphorus
B.
Potassium
C.
Nitrogen
D.
Calcium
Question No. 3
Marks
+1
-0
Time
0:00
☰
The process by which plants lose water vapor through their leaves to the atmosphere is known as:
A.
Infiltration
B.
Percolation
C.
Transpiration
D.
Evaporation
Question No. 4
Marks
+1
-0
Time
0:00
☰
Deficiency of which micronutrient causes 'Khaira disease' in rice?
A.
Boron
B.
Manganese
C.
Zinc
D.
Copper
Question No. 5
Marks
+1
-0
Time
0:00
☰
Which type of soil has the highest water holding capacity due to its fine particle size?
A.
Sandy soil
B.
Loamy soil
C.
Silty soil
D.
Clay soil
Question No. 6
Marks
+1
-0
Time
0:00
☰
The phenomenon where continuous cultivation of a single crop on the same land leads to a decline in soil fertility and increased pest/disease incidence is known as:
A.
Crop rotation
B.
Monoculture
C.
Mixed cropping
D.
Intercropping
Question No. 7
Marks
+1
-0
Time
0:00
☰
What is the primary effect of excessive rainfall on crop production in low-lying areas?
A.
Increased nutrient uptake
B.
Improved soil aeration
C.
Waterlogging and root damage
D.
Reduced weed growth
Question No. 8
Marks
+1
-0
Time
0:00
☰
The critical factor influencing the germination of seeds after sowing is:
A.
Wind speed
B.
Optimum temperature and moisture
C.
Day length
D.
Soil color
Question No. 9
Marks
+1
-0
Time
0:00
☰
Which of the following agricultural practices helps to conserve soil moisture and reduce weed growth by covering the soil surface?
A.
Deep ploughing
B.
Broadcasting
C.
Mulching
D.
Ridge planting
Question No. 10
Marks
+1
-0
Time
0:00
☰
The term 'photoperiodism' in crop production refers to the plant's response to:
A.
Temperature fluctuations
B.
Soil moisture levels
C.
Relative humidity
D.
Duration of light and dark periods
Question No. 11
Marks
+1
-0
Time
0:00
☰
Pests and diseases primarily affect crop yield by:
A.
Increasing soil organic matter
B.
Reducing photosynthetic efficiency and consuming plant parts
C.
Enhancing nutrient absorption
D.
Improving soil structure
Question No. 12
Marks
+1
-0
Time
0:00
☰
What is the consequence of high soil salinity on crop growth?
A.
Increased water uptake by roots
B.
Reduced nutrient availability
C.
Water stress and toxicity to plants
D.
Enhanced microbial activity
Question No. 13
Marks
+1
-0
Time
0:00
☰
The practice of growing two or more crops simultaneously on the same field is known as:
A.
Sequential cropping
B.
Relay cropping
C.
Intercropping
D.
Fallow
Question No. 14
Marks
+1
-0
Time
0:00
☰
Which gas, present in the atmosphere, is essential for photosynthesis in plants?
A.
Oxygen
B.
Nitrogen
C.
Carbon dioxide
D.
Methane
Question No. 15
Marks
+1
-0
Time
0:00
☰
Crop varieties developed through plant breeding for resistance to specific diseases primarily aim to:
A.
Increase fertilizer requirement
B.
Reduce yield potential
C.
Minimize crop losses and pesticide use
D.
Require more irrigation
Question No. 16
Marks
+1
-0
Time
0:00
☰
Insufficient tillage can lead to which of the following problems in crop production?
A.
Excessive soil aeration
B.
Increased weed germination
C.
Poor root penetration and drainage
D.
Rapid organic matter decomposition
Question No. 17
Marks
+1
-0
Time
0:00
☰
Which of the following climatic factors has the most significant impact on the distribution and types of crops grown in a region?
A.
Wind speed
B.
Relative humidity
C.
Temperature and rainfall
D.
Atmospheric pressure
Question No. 18
Marks
+1
-0
Time
0:00
☰
The term 'allelopathy' refers to the:
A.
Ability of plants to adapt to drought conditions
B.
Chemical inhibition of one plant by another
C.
Symbiotic relationship between plants and microorganisms
D.
Response of plants to mechanical stress
Question No. 19
Marks
+1
-0
Time
0:00
☰
Excessive use of nitrogen fertilizers can lead to which undesirable effect in cereals like wheat and rice?
A.
Increased lodging (falling over of plants)
B.
Enhanced disease resistance
C.
Faster maturity
D.
Stronger stem development
Question No. 20
Marks
+1
-0
Time
0:00
☰
Which of the following is a biotic factor negatively affecting crop production?
A.
Soil pH
B.
Temperature
C.
Weeds
D.
Rainfall
Question No. 21
Marks
+1
-0
Time
0:00
☰
The primary role of phosphorus in crop plants is related to:
A.
Chlorophyll formation
B.
Root development and energy transfer
C.
Water uptake regulation
D.
Stomatal opening and closing
Question No. 22
Marks
+1
-0
Time
0:00
☰
What is a common consequence of prolonged drought on crop plants?
A.
Increased turgor pressure
B.
Enhanced photosynthesis
C.
Wilting and reduced yield
D.
Accelerated flowering
Question No. 23
Marks
+1
-0
Time
0:00
☰
The addition of organic matter to sandy soils primarily helps to:
A.
Decrease water holding capacity
B.
Improve nutrient retention and water holding capacity
C.
Increase soil erosion
D.
Make the soil more compact
Question No. 24
Marks
+1
-0
Time
0:00
☰
Which agricultural tool is primarily used for secondary tillage operations to prepare a fine seedbed?
A.
Mouldboard plough
B.
Disc plough
C.
Harrow
D.
Subsoiler
Question No. 25
Marks
+1
-0
Time
0:00
☰
The 'Greenhouse Effect' can positively influence crop production in certain regions by:
A.
Decreasing atmospheric CO2 concentration
B.
Increasing overall global temperatures, extending growing seasons
C.
Reducing the need for irrigation
D.
Decreasing pest populations
Submit Test
Mark for Review & Next
Clear Response
‹ Prev
Save & Next ›
📋 Submit Test?
0
Answered
0
Skipped
25
Total
You
cannot
change answers after submission.
Cancel
Submit