Download PTU B.Sc Agriculture 2019 May 1st Semester 72211 SOIL SCIENCE I Question Paper

Download PTU (Punjab Technical University) BSc Agriculture 1st Semester 72211 SOIL SCIENCE I Last 10 Years 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011 and 2010 Previous Question Papers.

1 | M-72211 (S2)-2490
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Sc. Agriculture (2014 & Onwards) (Sem.?1)
SOIL SCIENCE-I
Subject Code : BSAG-104
M.Code : 72211
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
1. Write short notes on the following :
a. Salinization
b. Anion exchange Capacity
c. Bulk density
d. Percolation
e. Drainage
f. Leaching
g. Micelle
h. Alluvium
i. Laterization
j. Bed rock
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1 | M-72211 (S2)-2490
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Sc. Agriculture (2014 & Onwards) (Sem.?1)
SOIL SCIENCE-I
Subject Code : BSAG-104
M.Code : 72211
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
1. Write short notes on the following :
a. Salinization
b. Anion exchange Capacity
c. Bulk density
d. Percolation
e. Drainage
f. Leaching
g. Micelle
h. Alluvium
i. Laterization
j. Bed rock
2 | M-72211 (S2)-2490
SECTION-B
2. Write the source of negative charge on silicate clay minerals.
3. Explain the composition of earth crust with the help of diagram.
4. Bulk density and particle density of a field were reported as 1.65 and 2.80 respectively.
Calculate the percent porosity of soil.
5. Derive a relation among bulk density, particle density and porosity.
6. Enlist processes of soil formation and discuss role of any one in detail.

SECTION-C
7. Define a Rock. Discuss the conditions under which different rocks are formed.
8. Derive mathematically Darcy's law showing movement of water under submerged
conditions.
9. Discuss the conditions under which saline and sodic soils are formed. Also explain in
detail about their reclamation.








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