Page 176 - Primary Five Science

Soil Erosion

Soil fertility is where soil contains enough water, air, humus

and nutrients for successful plant growth. It refers to the abil-

ity of a soil to sustain agricultural plant growth

Ways of maintaining soil fertility

 Practicing crop rotation

 Leaving the soil to rest

 Practicing mulching

 Using fertilizers

 Bush fallowing

 Growing plants that fix nutrients into the soil, such as leg-

umes (nitrogen fixation)

There are two groups of soil fertilizers namely:

1. Natural Fertilizers

2. Artificial fertilizers

1. Natural Fertilizers

These are organic fertilizers which are made from de-

cayed animal and plant remains

They include:

a) Farm yard manure. This is got

from decayed and animal dung

and urine.