TY - JA AU - Barnhart,S.L. AU - Shrader,W.D. AU - Webb,J.R. TI - Comparison of soil properties under continuous corn grain and silage cropping systems [Soil organic matter decline] SN - 1435-0645 U1 - 79-388173 PY - 1978/// KW - Cereals general KW - Cultivation KW - AGROVOC KW - Maize KW - Soil chemistry and physics KW - Zea mays N1 - AV: NAL (4 AM34P); Peer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0002-1962 T2 - Agronomy Journal ER -