Soil-borne diseases of crops can be effectively reduced by

A. terracing

B. crops rotation

C. liming

D. irrigation

E. mulching

Gametes are produced through the process of

A. fusion

B. meiosis

C. mitosis

D. pollination

E. fertilization

Which of the following is the most suitable raw material used in the production of pulp in paper industry?

A. Hardwood

B. Softwood

C. Heartwood

D. Sapwood

E. Plywood

Which of the following explains the term pruning?

A. removal of unnecessary branches of trees crops

B. Adequate spacing of seedlings during transplanting

C. Removal of diseases or dead crops from the farm

D. hardening of seedlings in the nursery

E. Ripening of fruits before the development of embryo

28. The freshly cut forage crops fed to livestock in their housing units are referred to as

A. paddock grazing

B. rotational grazing

C. silage

D. hay

E. soilage

Which of the following plant diseases is not caused by fungus

A. Black arm

B. Rice blast

C. Rice smut

D. cassava leaf-spot

E. Maize rust

Trees for lumbering will be regularly available in Nigerian forests if

A. there is an increase in annual rainfall

B. fertilizers are applied to trees

C. timber is no longer used for construction purposes

D. a tree is planted for everyone felled

E. wood is no longer used as fuel

The side effects of the various preventive and control measures of pests and diseases of crops include the following except

A. environmental pollution

B. poisoning of wildlife

C. disruption of the ecosystem

D. improvement in the quality of farm produce

E. exposure of the farmer to health hazards

Which of the following parts of plants are normally used for vegetative propagation?

A. stem, root and seed

B. stem, root and flower

C. fruit, leaf and root

D. leaf, flower and stem

E. stem, root and leaf

The correct sequence in preparing new land for cropping is usually

A. stumping, laying out of farm, ridging and tiling

B. laying out of farm, ridging, stumping and tilling

C. tilling, stumping, laying out of farm

D. ridging, laying out of farm, tilling and stumping

E. laying out of farm, stumping, tilling and ridging.