Soil Science JRF, SRF, NET, & ARS – Telegram
Soil Science JRF, SRF, NET, & ARS
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Dr. Eetela Sathyanarayana
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Soil Science & Agril. Chemistry
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The phenomenon slickenside found in which soil
Anonymous Quiz
75%
Vertisol
13%
Mollisol
7%
Oxisol
5%
Alfisol
Which organic fraction not soluble in both acid and alkali
Anonymous Quiz
13%
Fulvic
14%
Humic
67%
Humin
6%
All of the above
In munsell colour chart hue 10 represents as ______
Anonymous Quiz
32%
Red
26%
Black
11%
Grey
31%
Yellow
pF scale for Field capacity is ____
Anonymous Quiz
9%
3.5
75%
2.5
13%
4.5
3%
7.5
Soil colloidal particle shows the phenomena
Anonymous Quiz
10%
Flocculation
15%
Adhesion and cohesion
3%
Plasticity
72%
All of the above
Which plant is used for indication of permanent wilting point? (M. Imp)
Anonymous Quiz
13%
Safflower
78%
Sunflower
6%
Marigold
3%
Wheat
Mica is which type of clay mineral
Anonymous Quiz
20%
1:1
61%
2:1
17%
2:1:1
3%
None of the above
Base saturation in lateritic soil
Anonymous Quiz
32%
< 40 %
38%
> 40%
24%
< 20%
6%
> 20%
Immobilization of sulphur occur in soil when C:S ratio is
Anonymous Quiz
35%
> 300:1
41%
> 400:1
10%
< 300:1
15%
> 200:1
Denitrification is a process of
Anonymous Quiz
14%
Oxidation
5%
Hydration
2%
Carbonation
78%
Reduction
👍2
Actinomycetes prefer which condition for their growth
Anonymous Quiz
53%
Slightly alkaline
29%
Alkaline
11%
Acidic
7%
Neutral
Nitrification process ceases at pH
Anonymous Quiz
54%
< 5
17%
< 6
11%
< 7
17%
< 8
Nitrification rapid in ---- season
Anonymous Quiz
17%
Winter
18%
Rainy
61%
Summer
4%
All of the above
👍1
The peak microbial population was observed in soil generally after addition of residue
Anonymous Quiz
32%
3-4 week
42%
2-3 week
10%
3-4 days
17%
1-2 week
Ammonia volatilization is purely process of
Anonymous Quiz
12%
Physical
67%
Chemical
18%
Biological
3%
Mechanical
Which element suppressed Downy mildew of pear millets?
Anonymous Quiz
65%
Chloride
20%
Fluoride
13%
Bromide
3%
Lithium
Improper development of wheat inflorescence is due to deficiency of
Anonymous Quiz
11%
Magnesium
14%
Molybdenum
13%
Calcium
63%
Boron