What are the three classes of salty soil?
(a) Saline soil, Saline-alkali soil, Non-saline soil
(b) Saline soil, Alkali soil, Non-saline soil
(c) Saline soil, Alkali soil, Saline-alkali soil
(d) Alkali soil, Non-saline soil, Saline-alkali soil
The question was asked in unit test.
This key question is from Reclamation of Saline and Alkaline Lands topic in chapter Water Logged Reclamation and Saline Soils for Agricultural Purposes of Irrigation Engineering