fertile

As an adjective fertile

is (of land etc) capable of growing abundant crops; productive.

As a noun chernozem is

a fertile black soil containing a very high percentage of humus (3% to 15%) and high percentages of phosphoric acids, phosphorus and ammonia.

As adjectives the difference between fertile and feracious

is that fertile is capable of growing abundant crops; productive while feracious is producing in abundance; fertile, fruitful.

As adjectives the difference between fertile and semifertile

is that fertile is (of land etc) capable of growing abundant crops; productive while semifertile is partially fertile.

As adjectives the difference between fertile and nonfertile

is that fertile is (of land etc) capable of growing abundant crops; productive while nonfertile is not fertile.

As an adjective fertile

is (of land etc) capable of growing abundant crops; productive.

As a noun bottomland is

flat land along a river, lying few feet above normal high water, often consisting of alluvial deposits and naturally fertile.