P515/2
PRINCIPLES AND
PRACTICES OF
AGRICULTURE
Paper 2
3hours.
Uganda Advanced Certificate of Education
P515/2 (PRINCIPLES AND PRACTICES OF AGRICULTURE
PAPER 2
3hours
INSTRUCTIONS TO CANDIDATES:
- This paper consists of section A, B,C, D and E
- Answer question 1 in section A and four others questions selecting one from
each of the sections B, C, D, and E.
- Write answers to section A in the spaces provided.
- No additional question (s) attempted will not be marked.
TURN OVER
1
SECTION A: ( 20MKS)
QUESTION ONE IS COMPULSORY.
1. The figure below shows a food web in a terrestrial habitat.
SUN
GRASS
HOPPERS
RAT GREEN
PLANTS
OWL UGANDA PREYING
KOB MANTIS
SNAKE
SAPROPHYTIC
FUNGI & LION HAWK
BACTERIA
(a) Complete the food web by inserting the arrows linking the different
organisms. (05mks)
(b) State with reasons, which organisms in the food web would be most directly
Affected if saprophytic fungi and bacteria were removed. (05mks)
(c) Name and explain how modern agricultural practice affects the natural
Ecosystem. (10mks)
2
SECTION B (20MKS) CROP PRODUCTION
(Answer one question from this section)
2. (a) Explain the climatic and agronomic factors that affect crop growth and
yield. (15mks)
(b) Explain how farmers can manage late planted crops on the farm to
obtain optimum yields. (05mks)
3. (a) Describe the event that take place in meiosis 1 during cell
division. (04mks)
(b) Outline the causes of variation in a population of organisms. (08mks)
(c ) Define an ecosystem and describe how agricultural affect the ecosystem.
(08mks)
SECTION C :( 20MKS) ANIMAL PRODUCTION
(Answer one question from this section)
4. (a) Define dystocia and give it’s causes in farm animals. (06mks)
(b) A cow in labour was observed with having difficulty in giving birth.
Diagnosis of the problems revealed a calf’s presence in the birth canal
with front feet first and the head bending downwards between the front
feet. Describe how you can help the cow to safely give birth. Use of
caesarean section not allowed. (07mks)
(c ) Describe the care that a farmer should give to pregnant animals on the
farm. (07mks)
5. (a) Describe the ideal site that the farmer would consider when establishing
an apiary. (06mks)
(b) Give the advantages of using a queen excluder in a top bar bee hive.
(05mks)
(c ) Outline the management practices that increases honey production.
(09mks)
3
SECTION D: (20MKS) AGRICULTURAL ENGINEERING
(Answer one question from this section)
6.a) Explain the factors to consider when selecting wood for construction work on
the farm. (08mks)
b) Outline the procedure of air seasoning timber. (07ms)
c) Describe hot and cold treatment of wood with preservatives. (5mks)
7.a) State the desirable qualities of a draft animal. (5mks)
b) Explain the factors that affect power output from draft animals. (9mks)
c) An apple crate of mass 40kg is pushed with a force of 140N up an inclined
track of length 10m on to a lorry floor at a height of 2m from the ground.
(Take g = 10N/kg. Calculate;
(i) Work done by the force of 140N. (02mks)
(ii) Work done if the box was lifted vertically upwards. (03mks)
SECTION E: (20MRKS) AGRICULTURE ECONOMICS
Answer one questions from this section.
8. a) Mention and explain the factors an agriculture investor should consider when
Choosing the location for his agricultural business. (10mks)
b) Outline the problems faced b marketing organizations I marketing agricultural
Produce. (10mks)
9.a) State the reasons for the government effort to undertake land reforms in
Uganda. (06mks)
b) Outline the land reform policies in Uganda necessary for increasing agricultural
Production. (07mks)
c) Describe how the current land tenure systems in Uganda affects agricultural
Production (07mks)
END
