Examples

• The ploughed earth looked rich and dark and fertile.
• In order to turn the deserts into fertile and productive land, engineers built an 800-mile canal.
• Organic farmers don't put chemicals into the soil, but keep it fertile by growing clover and adding manure.
• These plants need a moist fertile soil and a sheltered position.
• The corn grows waist-high in these fertile fields.

More examples

• Cats become fertile at about 6 months old.
• Women become less fertile as their age increases.
• To improve your chances of conceiving, you should know at what time in your menstrual cycle you are most fertile.
• The tests showed that you are perfectly fertile and that, in theory, you should be able to have a family.
• The female laid sixteen fertile eggs, each resulting in a healthy chick.