 |
ALM621S - AGRICULTURAL LAND MANAGEMENT - 2ND OPP - JAN 2020 |
|
|
1 Page 1 |
▲back to top |
o
FACULTY OF NATURAL
NAMIBIA UNIVERSITY
OF SCIENCE AND TECHNOLOGY
SPATIAL SCIENCES
RESOURCES AND
DEPARTMENT OF AGRICULTURE AND NATURAL RESOURCES SCIENCES
QUALIFICATION: BACHELOR OF AGRICULTURE
QUALIFICATION CODE: 07BAGR
LEVEL: 7
COURSE CODE: ALM 621S
COURSE NAME: Agricultural Land Management
SESSION: January 2019
DURATION: 3 HOURS
PAPER: THEORY
MARKS: 100
SUPPLEMENTARY / SECOND OPPORTUNITY EXAMINATION QUESTION PAPER
EXAMINER(S) | Alexander Meroro
MODERATOR: Dr Gabriel Hangara
INSTRUCTIONS
1. Answer ALL the questions.
2. Write clearly and neatly.
3. Number the answers clearly.
PERMISSIBLE MATERIALS
1. All written work MUST be done in blue or black ink
2. No books, notes and other additional aids are allowed
THIS QUESTION PAPER CONSISTS OF 3 PAGES (excluding this front page)
|
|
2 Page 2 |
▲back to top |
Question 1
1.1 How can soil degradation be avoided
(5)
1.2 Explain the term Soil Degradation
(4)
1.3. Explain the term soil erosion
(2)
Question 2
Mr Kavendjii Ja Kavendjii, a farmer in the northern communal area of Omusati region plan
to switch from Animal traction to mechanized power. Explain to him the possible
disadvantages in making such a switch or move.
(4)
Question 3
3.1. Which three basic landscapes elements are needed for rainwater harvesting? (3)
3.2. In many parts of southern Africa, mainly in Namibia, Botswana, South Africa and
Zimbabwe,
Dinghiswayo
Earth dams are constructed
what advantages such earth
for storage
dams have
of water. Briefly explain to
over normal storage dams
Mr.
and
Edgar
describe how he will go about in constructing such dams
(6)
3.3. Briefly explain how salination harms the soil and the plants
(4)
3.4. Briefly describe three forms of water erosion in Namibia
(3)
3.5. Mr Ndjamba ja Ndjamba
measures to control it. What
has a problem with wind erosion
advices will you give to him?
and
asks
your
advice on
(5)
|
|
3 Page 3 |
▲back to top |
Question 4
4.1. Explain the water retention and water movement
4.2.
How do plants roots gather water?
4.3. Briefly explain how the amount of water in the soil is measured.
(3)
(2)
(4)
Question 5
5.1. Describe the Hydrologic cycle
(6)
5.2. Describe the importance of water to crops and livestock production
(6)
5.3. Describe the factors used to determine water quality
(6)
5.4. State the benefits of irrigation agriculture
(4)
5.5. Identify and discuss the common types of irrigation systems
(6)
Question 6:
Describe the principal constraints to pasture and fodder production in Namibia (6)
Question 7
7.1.
(TOP
Calculate the gradient of the
of the field) = 0357 at point
field if the reading is from dumpy level are: APOINTA
B (at the Bottom of the field = 3887. Distance between
A
and B= 234
(2)
7.2. Suppose the
points are 3.5cm
real distance between
apart on a map whose
point
scale
A and Point B on the field when these two
is 1 to 2500. What is the distance between
(3)
A
and B?
|
|
4 Page 4 |
▲back to top |
7.3. Suppose the fence line of farm Maria Bronn is 1: 100,000 farm maps is 200mm. What
will be the length on the ground in KM? What will be the map distance in KM ¢
(4)
7.4. A rectangular field has a length of 120m and width of 85m. What is the area of the field
in hectares?
(2)
7.5. Define a slope
(2)
7.6. Describe the methods of expressing the slope
(6)
Question 8
What is the difference in height between the top and the bottom of a field when the
horizontal length of the field is 300 m and the slope is 2%.
(2)
TOTAL: 100