00351nam a2200121Ia 4500008004100000082002600041100001600067245003800083260005100121300001000172600001400182650003300196140224s9999    xx            000 0 und d  a631.42:631.4 '6.02 P2  aClarson, D.  aSoil and water;analytical methods  aKottayambAgri Clinics & Research Centrec2002  a262p.  aD.Clarson  aSoil Analysis,Water Analysis