Root knot of tomato is caused by a
- A. fungus
- B. bacterium
- C. virus
- D. protozoan
- E. nematode
Incubators are used to supply heat to
- A. day-old chicks
- B. sick fowls in cold weather
- C. cockerels to increase their libido
- D. poultry attendants for protection against cold
- E. fertilized egg for chick development
Which of the following is not a limitation of farm mechanization?
- A. technical know-how
- B. capital
- C. small holdings
- D. lack of spare parts
- E. labour
What are give and take lines often used in farm surveying?
- A. leveling measurements of farms
- B. chain measurements of farmlands
- C. measuring diversion or obstruction in a farmland
- D. measuring turning points during surveying
- E. measuring farms with irregular boundaries
Soil can be drained by the use of the following except
- A. sprinklers
- B. channels
- C. gutters
- D. ditches
- E. porous pipes
Which of the following farm practices does not have a very harmful effect on the soil?
- A. crop rotation
- B. land clearing
- C. overgrazing
- D. flooding
- E. bush burning
Which of the following is the function of nitrosomonas in the nitrogen cycle?
- A. ammonification
- B. volatilization
- C. nitrification
- D. dentrification
- E. nitrogen fixation
The type of soil formed is affected by the following factors except
- A. farming systems
- B. climate
- C. vegetation
- D. topography
- E. parent material
Which of the following will not contribute to soil formation in Nigeria?
- A. carbonation
- B. oxidation
- C. temperature
- D. hydrolysis
- E. glaciation
By which of the following ways is the agricultural production in Nigeria affected by topography
- A. lowering of crop quality
- B. determining the manure requirement of a farm
- C. lowering the leve of production
- D. increasing the pest incidence on crops
- E. influencing the area of land, actually available for agriculture
Which of the following factors is not considered in 5the use of irrigation?
- A. weed seed distribution over the farm
- B. cost of maintenance
- C. availability of water
- D. build up of pests and diseases
- E. prevention of salt accumulation through adequate drainage
Which of the following is a disadvantage of using organic manure on the soil?
- A. spreading of pests and diseases
- B. reducing the rate of evaporation from soil surfaces
- C. improving the nitrogen content of soil
- D. increasing the humus content of soil
- E. preventing erosion and leaching
Which of the following nutrient element is a macro-nutrient?
- A. phosphorus
- B. zinc
- C. iron
- D. manganese
- E. boron
The major factor influencing the physical or mechanical breakdown of rocks into finer particles include the following except
- A. man
- B. animal
- C. wind
- D. water
- E. solution
A crop not requiring more than 750 mm annual rainfall is most suitable for cultivation in
- A. swampy forest
- B. sahel savanna
- C. rain forest
- D. sudan savanna
- E. guinea savanna
Which of the following factors affecting land availability and use is a socio-economic factor?
- A. population pressure
- B. soil type
- C. topography
- D. farming systems
- E. climate
In encouraging farmers to produce more of a particular crop, the Nigerian government has helped farmers in marketing that crop through the establishment of
- A. rural schools of agriculture
- B. markets for the sale of crops
- C. marketing boards
- D. rural extension offices
- E. universities of agriculture
Which of the following is not the role of government in agricultural production?
- A. provision of loans and credits
- B. building of storage facilities
- C. establishment of efficient marketing outlets
- D. provision of subsidies
- E. provision of labour
Subsistence farming can be appropriately described as planting of crops and rearing of livestock
- A. for the benefit of the whole country
- B. as export for earning foreign exchange
- C. for the benefit of the community only
- D. for the benefit of the farmer and his family
- E. as raw materials for agro-based industries