00351nam a2200097Ia 4500008004100000082003600041245006300077260006800140600002400208650002100232140117s9999    xx            000 0 und d  aTR 631.584.9.001.5:62(083.9) N2  aTechnology recommendations from cropping systems research.  aMeerutbProject Directorate for Cropping Systems Researchc1992  a"Hegde, D.M. comp."  aCropping systems