Question 1 of 20 2,054 total questions
The tree species widely used in afforestation programme is
A neem
B teak
C oil palm
D ebony
E rubber
Reforestation is the
A organised planting of trees in areas from which forest trees have been removed
B establishment of forests in areas where there are previously none
C development of young treees to replace old mature trees
D planting of forest trees on an unproductive land
E cultivation of forest trees for boundary demarcation
Which of the following is a pasture grass?
A stylozanthes gracilis
B centrosema pubescens
C pueraria phaseloides
D cynodon dactylon
E calapogonium mucunoides
Which of the following is not a characteristic of a good pasture?
A high quality grasses and legumes
B high leaf to stem ratio
C drought resistance
D ability to withstand trampling
E slow growth
Common pasture grasses include the following except
A guinea grass
B carpet grass
C elephant grass
D gamba grass
E spear grass
Milling of rice is usually done
A after parboiling and drying
B before parboiling and drying
C before parboiling and winnowing
D after parboiling and drying
E after winnowing and parboiling
The agent of controlled pollination in crops is
A water
B light
C moth
D butterfly
E man
Cassava is cultivated in many ecological zones because of its
A industrial and domestic uses
B tolerance to low rainfall and soil fertility
C early maturity and weed suppression
D resistance to mosaic diseases and pest attacks
E low production costs
Cassava is normally planted at a spacing of about
A 0.1 m x 0.5 m
B 0.75 m x 1.0 m
C 2.0 m x 3.5 m
D 3.0 m x 3.0 m
E 4.0 m x 5.5 m
Energy for photosynthesis in crops is provided by
A man
B animal
C wind
D sun
E water
Drainage types include the following except
A shadoof
B open
C channel
D surface
E underground
A farm practice which assists in maintaining the structure and fertility of soil and reduction in risk of the sun infestation is
A bush burning
B organic manuring
C crop rotation
D mulching
E fertilizer application
Effects of overgrazing on soil include the following except
A exposure of soil to erosion
B depletion of soil nutrients
C soil compaction
D improvement of soil structure
E exposure of soil to direct rays of the sun
The following crops can be grown as cover crops except
A pueraria phaseoloides
B stylozanthes gracillis
C centrosema pubescens
D nicotiana tabacum
E calopogonium mucunoides
Which of the following is not a function of organic matter in the soil?
A conserving soil water
B preventing soil erosion
C preventing leaching in soil
D inhibiting seed germination
E stabilising the structure of the soil
Crops grown in nitrogen deficient soil show the following characteristics except
A poor setting of fruit
B stunted growth
C chlorosis in growing crops
D yellowing of lower leaves
E timely ripening of fruits
Which of the following is a soil micro-nutrient?
A magnesium
B potassium
C calsium
D iron
E phosphorus
The amount of air and water in the soil is mostly affected by the
A location of the soil
B amount of annual rainfall
C chemical compostion of the soil
D living organisms in the soil
E structure of the soil
Which of the following does not influence rock weathering?
A water
B carbonation
C roots
D ammonification
E temperature
The factors which affect the number and the activities of soil micro-organisms include the following except
A topography
B soil moisture
C soil aeration
D degree of soil acidity
E temperature
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