Question 1 of 20 2,683 total questions
The most effective method of controlling viral diseases in crops is by
A spraying with bordeaux mixture
B renoving and burning affected crops
C practicing crop rotation
D planting at recommended spacing
Quarantine regulations are established so as to
A allow the importation of diseased plant and animal materials
B prevent the introduction foreign diseases into country
C assist farmers to grow foreign crops
D facilitates the rapid spread of foreign diseases
Which of the following insects transmits swollen shoot virus of Cocoa?
A Stem borer
B Mealybug
C White fly
D Capsid
Pure line of crops are produced through continuous
A selection
B hybridization
C cross breeding
D inbreeding
The process of crossing two pure lines of plants of the same species is called
A selection
B genotype improvement
C hybridization
D inbreeding
Which of the following plants is not a leguminous forage?
A Centrosema Pubescens
B Panicum maximum
C Stylosanthes gracilis
D Calopogonium mucunoides
Which of the following crops requires shade at the early stage of is growth?
A Plantain
B Banana
C Cocoa
D Sugarcane
Study the diagram above and answer question
A Theobroma cacao
B Zingiber officinale
C Hevea brasiliensis
D Gossypium hirsutum
Study the diagram above and answer question
A Knife
B Secateurs
C Shears
D Cutlass
The process of removing excess maize seedlings from a stand is known as
A pruning
B supplying
C thinning
D wedding
Which of the following conditions is a characteristic of a poorly drained soil?
A presence of a large number of termites
B Presence of high amount of humus
C Decrease in the activities of micro organisms
D High soil fertility and productivity
Irrigation can be described as the
A reduction of soil water
B spraying of minerals on plants
C application of dissolved fertilizers to the soil
D application of water to the soil
In the carbon cycle, carbon dioxide in the air may be replenished by
A respiration
B transpiration
C lighting
D denitrification
Lost soil nutrients can be replenished by the following methods except
A organic manuring
B fertilizer application
C continuous grazing
D cover cropping
Which of the following statement is a disadvantages of decaying organic matter in soils?
A Bacterals and fungal growth is enhanced
B minerals in organic matter are released into the soil
C physical condition of soil is enhanced
D water-holding capacity of soil is improved
In chemical weathering of rocks, the equation Fe,2 O3 +3H2 O → Fe2 O3 3H2 O represents
A carbonation
B hydration
C solution
D oxidation
An example of igneous rock is
A granite
B limestone
C coal
D sandstone
Rhizobium supplies nitrogen to leguminous plants by
A incorporating urea into their bodies
B fixing atmospheric nitrogen into the soil
C decomposing plant and animals remains
D decreasing the pH value of the soil
The most limiting factor affecting land availability for agriculture in urban settlements is
A soil type
B topography
C climate
D population pressure
Land is said to be a fixed asset in Agriculture. This means that
A its features and topography are fixed
B soil nutrients and its vegetative cover can be replaced
C its size remains fixed over time
D its micro organic composition is constant over time
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