Important Posts

WAEC 2018 - AGRIC. SCIENCE ANSWERS

Get Waec Gce Expo Here

WAEC 2018 - AGRIC. SCIENCE ANSWERS

Monday, 30th April, 2018
Agricultural Science 2 (Essay)** – 09:30a.m. – 11:40a.m.
Agricultural Science 1 (Objective)** – 11:40 a.m. – 12:30p.m
+++++++++++++++++++++++++++++++++++++


=============================
AGRIC OBJ:
1-10: ACCADBDDBB
11-20: DDAABACBBA
21-30: CDCCADDDBA
31-40: BDDAACDDCD
41-50: CCBACBBBCC
=============================



(1ai)
Basic Ammenities:
-It makes able bodied me to migrate from rural to urban areas in search of job
-Poor processing facilities for farm produce
-Shortage of water for irrigation purposes for all season cropping
-Poor health services reduces the productivity of farmers

(1aii)
Farm inputs:
-Available farm inputs are of inferior quality,outdated and crude
-Farm inputs like chemicals,fertilizers,tools and implements are grossly inadequate
-Modern farm inputs are not produced in Nigeria
-Farm inputs are expensive to buy and maintain

(1bi)
Tractor:
-Used for drawing farm implements like plough,harrows,ridgers etc
-It has hydraulic control system which aids the lifting of coupled implements 
-It can be used to carry harvested crops or other farm products from the farm to the market

(1bii)
Buldozzer:
-For bush clearing
-For felling trees and stumps
-For levelling ground

(1c)
-Service at regular interval
-Replace worn out or weld broken parts
-Adhere strictly to manual or manufacturer's instruction
-Routine and regular changing of oil

=======================================


(2a)
(i) Water is essential for the process of photosynthesis.
(ii) Water also help to maintains the turgidity of plant. 
(iii) Water protects plant from adverse condition like drought, frost etc. 
(iv) Water serves as the solvent and carrier of food nutrients for the growth of plants.

(2b)
(i) Nitrate leaching 
(ii) The export of alkalinity in produce. 
(iii) Parent material - type of rocks from which the soil developed.
(iv) Rainfall - soils under high rainfall conditions are more acid than soils formed under dry conditions.
(v) Soil organic matter - soil organisms are continuously decomposing organic matter.

(2c)
Adult fluke lay eggs that are passed out onto pasture in the faeces. The egg, hatches and migrates in thin films of moisture, actively seeking the snail host. Within the snail they undergo two further developmental stages, including multiplication, eventually becoming infective cercariae, which emerge from the snail when the temperature and moisture levels are suitable. The cercariae migrate onto wet herbage, encystingas metacercariae, the highly resilient infective stage of the liver fluke. Following ingestion, the young flukes migrate to the liver, through which they tunnel, causing considerable tissue damage. The infection is patent about 10-12 weeks after the metacercariae are ingested. The whole cycle takes 18-20 weeks.

====================================


(3ai)
Cassava requires a temperature of 21-35 degrees centigrade,raifall of 150cm-200cm,

(3aii)
a well drained,rich,friable,loamy soil can also grow on poor soil

(3aiii)
By stem cutting which are planted from march to september

(3aiv)
1m by 1m

(3av)
Weeding regularly

(3avi)
Apply 250kg/ha of N.P.K fertilizer four to six weeks after planting

(3avii)
Cassava matures between 8 to 12 months after planting. Cutting back plants 2 weeks before harvesting should cause tubers to mature and increase yields by 10%. Do not weed before harvesting. Excess soil should be removed from the harvested tubers and tubers carefully packed in crates or bags for transport.

(3aviii)
The main means of preserving cassava roots for storage is to produce some form of dried product, the end product generally being a flour although the dried roots are often stored in some other form.

(3bi) Bacteria
(3bii) Bird
(3biii) Bloody faeces
(3biv) Proper hygiene
(3bv) Bacteria
(3bvi) Cattle
(3bvii) profuse diarrhoea
(3bviii) Proper hygiene

============================================



(4a)
Land tenure can be defined as the manner in which a party holds or occupies an area of land.

(4b)
A weed may be defined as any plant or vegetation that interferes with the objectives of farming or forestry, such as growing crops, grazing animals or cultivating forest plantations.

(4ci) 
It is caused by Rootknot nematode

(4cii)
-Nematodes are soil borne so are transmitted through soil movement and run-off water
-Through vegetative planting materials/transplanting of seedling
-Through contaminated farm tools and equipment

(4ciii)
-Enlargement of certain cells of the
-Roots in the form of knots

(4civ)
-Crop rotation
-Use resistant varieties

(4di)
(i) Land is Permanent
(ii) Land is a Primary Factor of Production
(iii) Land is a Passive Factor of Production
(iv) Land is Immovable

(4dii)
(i) Man Produces Capital
(ii) Capital is a Passive Factor of Production
(iii) Capital is a Produced Means of Production
(iv) It is variable

========================================

(5a)
Colostrum is the first milk produced by the farm animals which are rich in proteins, vitamins, and they are used to feed new born farm animals.

(5b) 
Diagram

(5c)
(i) 1
(ii) 3
(iii) 11
(iv) 28
(v) 40
(vi) 8
(vii) 1
(viii) 0


=======================================


(6a) 
(i) Washing of the feeders and drinkers regularly 
(ii) Admistration of vaccine and medication to birds
(iii) Fumigation and proper sanitation should be done before arrival of the bird
(iv) Provision of medication and vaccination

(6b)
(i) It prevents secondary infection caused by horn injuries
(ii) It creates more space for animals
(iii) It prevents injuries to the body of other animals
(iv) It makes it safer during vaccination or deworming of animals

(6c)
(i) Harvesting
(ii) Packaging and Packing
(iii) Transport
(iv) Advertisement
(v) Food Processing 

(6d)
(i) Land tenure system 
(ii) Inadequate finance and credit facilities 
(iii) Poor marketing system 
(iv) Inadequate farm input



===============================


Get Waec Gce Expo Here
THERE IS LOVE IN SHARING! :

No comments:

Post a Comment

Designed by NAIRACODED MEDIA.