Which of the following statements is not an advantage of drainage? It

• A. removes excess water
• B. supplies moisture for plant growth
• C. reclaims water-logged land and swamps
• D. improves soil structure

The soil water that is readily available for absorption by plant roots is called

• A. capillary water
• B. gravitational water
• C. hygroscopic water
• D. superfluous water

A common disease of onion is

• A. leaf spot
• B. root knot
• C. leaf blight
• D. mosaic

Farm mechanization does not

• A. involve the use of motorized equipment
• B. Require much capital
• C. Promote employment
• D. Involve the use of heavy machinery

The use of fungal pathogens to control dodder weed is a

• A. physical method
• B. mechanical method
• C. biological method
• D. cultural method

Which of the following pesticides effectively control maize stem borers?

• A. systematic insecticides
• B. contact poisons
• C. nematicides
• D. fumigants

Soil-borne diseases of crops can be effectively reduced by

• A. terracing
• B. crops rotation
• C. liming
• D. irrigation

Which of the following is an advantage of mechanization?

• A. carrying out many farm operations with ease
• B. displacing many farm workers
• C. exposing soil to direct effect of sunlight and erosion
• D. polluting the environment with industrial gases and wastes

(a) Draw an annotated diagram of a water cycle. (b) State six importance of water to crops. (c) State four ways of conserving water in the soil.

Which of the following is the main reason foe not keeping birds meant for commercial egg production under the extensive system of management? Birds

• A. are exposed to attack by predators
• B. waste a lot of productive energy roaming about
• C. are exposed to sufficient green forage
• D. are exposed to theft