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For students in search of
- Hydroponic Gardening
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Guides - Basics to Experts level
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Growing fruit and vegetables hydroponically
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Practical daily questions or queries of hydroponics lovers
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Current Hydroponics and Indoor Gardening Market Growth as well as Trends
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31. |
A = RKLSCP denote universal soil loss equation in which K is equal to: |
A. |
Soil credibility factor |
B. |
Soil productivity factor |
C. |
Soil leaching factor |
D. |
Crop management factor |
Answer: Option A
Explanation:
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32. |
Absorbed hydrogen and aluminium are largely responsible for: |
A. |
Soil acidity |
B. |
Soil alkalinity |
C. |
Neutralinity |
D. |
None of the above |
Answer: Option A
Explanation:
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33. |
Absorption of ions in plants occurring with the aid of metabolic energy is termed: |
A. |
Passive absorption |
B. |
Active absorption |
C. |
Metabolic absorption |
D. |
Mass flow absorption |
Answer: Option B
Explanation:
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34. |
According to "Universal Soils Loss equation" the factors on which ration of erosion depend are: |
A. |
Rainfall, soil credibility and slope |
B. |
Rainfall, soil credibility, slope length, slope gradient, crop management, erosion control practice |
C. |
Rainfall, wind velocity, crop management |
D. |
Soil credibility, soil type, crop management |
Answer: Option B
Explanation:
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35. |
According to land capability classification, the soils, which are not suitable for crop cultivation, belong to: |
A. |
Class I |
B. |
Class III |
C. |
Class IV |
D. |
Class VIII |
Answer: Option D
Explanation:
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36. |
According to the carrier hypothesis the specific carriers are present on: |
A. |
Plasma lemma |
B. |
Tonoplast |
C. |
Endoplasmic reticulum |
D. |
Mitochondria |
Answer: Option A
Explanation:
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37. |
According to U.S.D.A. soil classification, the size of fine sand should be in between: |
A. |
0.01-0.1 mm |
B. |
0.1-0.25 mm |
C. |
0.25-0.5 mm |
D. |
0.001-0.0001 mm |
Answer: Option B
Explanation:
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38. |
Acid soils can be reclaimed by: |
A. |
CaCO3 |
B. |
H2SO4 |
C. |
Ca SO4.2H2O |
D. |
HNO3 |
Answer: Option A
Explanation:
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39. |
Active soil forming factors would include: |
A. |
Vegetaion and topography |
B. |
Time, topography and climate |
C. |
Time and vegetation |
D. |
Vegetation and climate |
Answer: Option B
Explanation:
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40. |
Addition of the following material makes it possible to take good crop in sodic soil: |
A. |
FYM |
B. |
Gree manure |
C. |
Gypsum |
D. |
All of these |
Answer: Option C
Explanation:
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