Show I I Conservation Conserva by n Notes 11 W. W EarL rt II I I IU II i Since Sirce last July we have been talking quite a bit about soil conservation yet have haYe we ever eyer stopped to analyze the term Just what does the term soil soli conservation mean In reality soil conservation Is Isa Isi isa a i science A system of remedial practices and a social movement When we speak of oC it as a science science science ence It Is still in the early development development de de- stage There Thero is a lolin lot lol lotin lotin in this field which still remains une unexplored It is still sill in the stage where we are arc still groping and antI some confusion with Ith differences of opinion still exist but these however are signs of growth and antI vitality The rhe fact still lies though that In the past decade it has acquired a sufficient body of exact knowledge to entitle it to the status of oC science The system of ot practices is re related related related re- re to the science of soil soU conservation conservation con con- as clinical medicine is isto isto to medical research Very much like clinical medicine soil conservation conservation con con- is essentially an art depending for its results to quite a degree on the process of trial and antI error Similarly it gets its remedial results by setting up p conditions most fa favorable favorable v ra bl to the curative processes of nature When we speak of soil conservation conservation conservation conser conser- as a social movement it itis itis itis is just emerging but from all indications its potentIality potentiality potent potent- is The great portion of soil conservation conservation conservation con con- measures are very old When we speak of oC horizontal or contour planting we find that it was referred by the agricultural writers of ancient Rome nome The Soil Conservation service lists 59 standard physical practices practices practices tices and many of oC these are simply simply simp simp- l ly variations from and modifications modifications modifications of others When we speak of controlling water erosion all measures applied applied applied ap ap- ap- ap plied have a dual purpose of re reducing reducing ro- ro the amount of run-off run to the minimum and controlling the irreducible minimum so as asI asto asto to cause the least soil soU I loss All measures are aro Important but we cannot list their order because they Yar vary according to soil slope climate and many subordinate factors In some of my future write write- ups of Conservation Notes I will attempt to list and and discuss these measures |