00497nam a2200169Ia 4500008004100000020001500041082001700056100001600073245006900089250000600158260005200164300000800216650004100224650003400265653001800299653001000317170901s1983    xx            000 0 und d  a0632022299  a631.41bL95S  aLynch, J.M. 0aSoil BiotechnologybMicrobiological Factors in Crop Productivity  a1  aOxfordbBlackwell Scientific Publicationsc1983  a191  aAgriculture and related technologies  aTechnology (Applied sciences)  aBiotechnology  aSoils