Glossary

 

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Tidal flats

Nearly flat areas, periodically covered by tidal (periodical) waters, not suitable for agricultural use.


Till

An unsorted glacial sediment. Glacial drift is a general term for the coarsely graded and extremely heterogeneous sediments of glacial origin.


Tillage

See ploughing.


Topsoil

(i) The surface soil horizon (A) which is modified when cultivated, and designated Ap. See also surface soil. (ii) Fertile soil material used to topdress roadbanks, gardens, and lawns.



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