Which of the following is not a way of maintaining soil fertility?

A. cover cropping

B. manuring

C. mulching

D. mixed farming

E. monocropping

A soil with the PH range of 6.1 to 6.9 can be described as

A. alkaline

B. very acidic

C. slightly alkaline

D. slightly acidic

E. neutral

Which of the following statement is not correct about micronutrients? They

A. are required in small quantities by plants

B. are harmful when present in large quantities in a soil

C. are derived from the parent rocks

D. are the most abundat elements in plant leaves

E. act as catalysts and co-enzymes in growing plants

A soil which consists of a mixture of and, silt and clay in equal quantities is described as

A. humus

B. alluvial soil

C. sandy clay

D. loam

E. clayey loam

Which of the following processes will not lead to the loss of nutrients from the soil?

A. erosion

B. mulching

C. harvesting

D. burning

E. leaching

The physical properties of soil include the following except

A. bulk density

B. colour

C. moisture content

D. porosity

E. PH

Which of the following problems will not be considered before installing irrigation equipment in a farm?

A. high cost of equipment and maintenance

B. concentrartion of salt

C. source of power

D. availability of water

E. build-up of pest and diseases

Which of the following is the source of energy used by green plants for photosynthesis?

A. electricity

B. water

C. wind

D. sun

E. machine

One of the limitation of machanization of farms is

A. reduction in the cost of production

B. exposure of soil to the effects of climate

C. increase in yield of crops

D. reduction of farm labour

E. cultivation of more area of land

Which of the following farm operations cannot be mechanized?

A. weed control

B. fertilizer application

C. transportation and handling

D. seed-germination

E. crop processing