Agriculture Past Questions And Answers
Selective exploitation means felling trees of
- A. different ages and girths
- B. specific ages and girths
- C. different girths and same species
- D. different girths and different species
_______ is a secondary tillage implement
- A. Harrow
- B. Plough
- C. Ridger
- D. Disc plough
The by-product in plant photosynthesis is
- A. carbondioxide
- B. carbohydrate
- C. hydrogen
- D. oxygen
Which of the following is not a method of controlling pests?
- A) Quarantine
- B) Crop rotation
- C) Fumigation
- D) Mulching
Which of the following groups of crops will thrive in areas with high rainfall?
- A. Cotton, cowpea and groundnut
- B. Millet, maize and cotton
- C. Guinea com, cowpea and maize
- D. Cocoa, oil palm and rubber
A breeding method which involves the production of heterozygous populations from homozygous lines is
- A. inbreeding
- B. introduction
- C. selection
- D. hybridization
The A-Horizon of soil profile is also called the
- A. Top soil
- B. Sub-soil
- C. Parent materials
- D. Bedrock
The practice of planting one type of annual crop each season is referred to as
- A. monoculture
- B. continuous cropping
- C. mono-cropping
- D. horticulture
Crop rotation has the following effects on the soil except
- A. maintenance of soil fertility
- B. reducing concentration of soil pests
- C. improving soil structure
- D. predisposing soil to leaching
(a). State three effects of maize weevil on maize grains. (b) Explain briefly five general control measures of insect pests of grains in storage. (c) Name the vector for each of the following crop diseases: (i) groundnut rosette; (ii) maize streak; (iii) cassava mosaic.
View Discussion (0)WAEC 1998 THEORY