Download PTU B.Sc-Agriculture 2020 March 7th Sem 74828 Soil Physical And Biological Environment Question Paper

Download PTU (I.K. Gujral Punjab Technical University Jalandhar (IKGPTU) B.Sc-Agriculture 2020 March Previous Question Papers

1 | M-74828 (S2)-218
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Sc. Agriculture (2014 to 2018) (Sem.?7)
SOIL PHYSICAL AND BIOLOGICAL ENVIRONMENT
Subject Code : BSAG-CS701
M.Code : 74828
Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.

SECTION-A
Q1. Write short notes on the following :
a) Soil Tilth
b) Soil organism
c) Bulk density
d) Percolation
e) Drainage
f) Leaching
g) Infiltration
h) Movement of water in pores
i) Eluviation
j) C:N ratio

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1 | M-74828 (S2)-218
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Sc. Agriculture (2014 to 2018) (Sem.?7)
SOIL PHYSICAL AND BIOLOGICAL ENVIRONMENT
Subject Code : BSAG-CS701
M.Code : 74828
Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.

SECTION-A
Q1. Write short notes on the following :
a) Soil Tilth
b) Soil organism
c) Bulk density
d) Percolation
e) Drainage
f) Leaching
g) Infiltration
h) Movement of water in pores
i) Eluviation
j) C:N ratio

2 | M-74828 (S2)-218
SECTION-B
Q2. Discuss in detail the soil thermal regimes of humid and arid regions.
Q3. Enlist factors of soil formation and discuss role on any one in detail.
Q4. Explain different processes which affect soil temperature.
Q5. Explain management techniques to check soil erosion.
Q6. Discuss infiltration and redistribution of water in soil.

SECTION-C
Q7. a) Explain in detail the factors which affect composition of soil-air.
b) Explain Darcy?s law in relation to movement of water in soil under saturated
conditions.
Q8. Derive mathematically Darcy?s law showing movement of water under submerged
conditions.
Q9. a) Elaborate the role of soil organism in maintenance of ecological balance.
b) Explain activities of soil micro-organism in development of soil.






NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any
page of Answer Sheet will lead to UMC against the Student.
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