Download PTU B.Sc Agriculture 2019 May 7th Semester 74828 SOIL PHYSICAL AND BIOLOGICAL ENVIRONMENT Question Paper

Download PTU (Punjab Technical University) BSc Agriculture 7th Semester 74828 SOIL PHYSICAL AND BIOLOGICAL ENVIRONMENT Last 10 Years 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011 and 2010 Previous Question Papers.

1 | M-74828 (S2)-2366
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Sc. Agriculture (2014 & Onwards) (Sem.?7)
SOIL PHYSICAL AND BIOLOGICAL ENVIRONMENT
Subject Code : BSAG-CS-701
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
1. Write short notes on the following :
(a) Aggregation
(b) Particle density
(c) Erosion
(d) Soil consistence
(e) Redistribution of water
(f) Soil micro organism
(g) Sulphur transformation in soil
(h) Iluviation
(i) Soil aeration
(j) Soil texture

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1 | M-74828 (S2)-2366
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Sc. Agriculture (2014 & Onwards) (Sem.?7)
SOIL PHYSICAL AND BIOLOGICAL ENVIRONMENT
Subject Code : BSAG-CS-701
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
1. Write short notes on the following :
(a) Aggregation
(b) Particle density
(c) Erosion
(d) Soil consistence
(e) Redistribution of water
(f) Soil micro organism
(g) Sulphur transformation in soil
(h) Iluviation
(i) Soil aeration
(j) Soil texture

2 | M-74828 (S2)-2366
SECTION-B
2. Discuss infiltration and redistribution of water in soil.
3. Discuss in detail the soil thermal regimes of humid and arid regions.
4. Explain different processes which affect soil temperature
5. Enlist factors of soil formation and discuss role on any one in detail.
6. Explain management techniques to check soil erosion.

SECTION-C
7. Discuss microbial transformation of carbon and nitrogen in soils.
8. Derive mathematically Darcy's law showing movement of water under unsubmerged
conditions.
9. Classify soil organism and explain their role in soil with reference to plant growth.








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