The texture and the mineral composition of soil depend mainly on

A. topography

B. light intensity

C. organic matter

D. parent material

E. temperature

Which of the following types of fertilizer is recommended for use in high quantities for groundnut production?

A. nitrogen fertilizer

B. phosphorus fertilizer

C. potassium fertilizer

D. compost

E. potassium and calcium fertilizer

Lodging in crops is caused by excess supply of

A. potassium

B. sulphur

C. iron

D. nitrogen

E. sodium

Adoption of clean clearing of land in the tropical rain forest is not advisable because it

A. encourages erosion arid leaching

B. is very expensive

C. is very difficult to practise

D. eprives the farmer of continous use of wood

E. encourages compaction of soil

Which of the following is not an effect of bush burning on the soil?

A. sterilizing soil against some harmful soil micro-organisms

B. destroying the structure of soil

C. increasing rate of nitrogen mineralization

D. predisposing soil erosion

E. maintaining high levels of soil nutrients reserves

Irrigation can be defined as

A. high water table for plants

B. a system of farming in whivh crops are provided with water artificially

C. a type of farming where crops depend mostly on rainfall

D. a type of farming practised in the fprest zones

E. the storage of water for future farm operation

Which of the following is not an advantage of farm mechanization?

A. timely farm operations

B. high operating cost

C. green-manuring

D. improvement of yields

E. rapid land clearing

A fruit with many seeds that has many joined cerpels and dehisces along all sutures from base to apex is referred to as a

A. cereal

B. legume

C. capsule

D. berry

E. nut

The maturity period of tomato in days is about

A. 40

B. 90

C. 140

D. 160

E. 180

Tomato crops are usually staked to

A. accelerate rate of ripening of the fruits

B. accelerate growth

C. prevent rotting of fruits

D. induce flowering

E. expose the leaves adequately