00303nam a2200097Ia 4500008004100000082001600041100002400057245007100081260004500152300000800197140113s9999    xx            000 0 und d  a631.42   L8  a"Stelly, Matthias."  aSoil testing: Correlating and interprenting the analytical results  a1978bAmerican Soc. of AgronomycMedison  a117