Agric Science

 

11. Streak disease of maize is caused by
A. virus
B. nematode
C. fungus
D. bacterium

12. The process of removing excess water from an agricultural land is referred to as
A. drainage
B. dredging
C. infiltration
D. percolation

13. Taungya farming involves the integration of ____ and _____
A. animal husbandry, floriculture
B. crop husbandry, fish farming
C. crop husbandry and forestry
D. forestry aquaculture

14. Which of the following is NOT a biotic factor affecting agricultural production
A. pest and disease organism
B. predator
C. soil organism
D. soil pH

15. The factor that influences the availability of plant nutrients is
A. relative humidity
B. soil pH
C. sunlight
D. temperature

16. Nitrification can best be explained as the conversion of _____ to _____ by bacteria
A. nitrites, nitrates
B. nitrates, nitrites
C. nitrates, gaseous nitrogen
D. nitrates, commonium compounds

17. All the following are cereal crops except
A. maize
B. millet
C. cowpea
D. rice

18. Genetic characteristics are passed from parents to offspring through the
A. chromosome
B. centromere
C. gene
D. zygote

19. The best farm tool for transplanting of seedling is
A. hand fork
B. shovel
C. go-to-hell
D. hand trowel

20. Chlorosis observed along the veins of leaves is a characteristic symptoms for the
deficiency of
A. magnesium
B. nitrogen
C. potassium
D. sulphur

 

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