au.\*:("MCCOLLUM RE")
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INTERCROPPING: A MANAGEMENT ALTERNATIVE FOR NORTH CAROLINA FARMERS.MCCOLLUM RE.1981; RES. PERSPECT.; USA; DA. 1981; VOL. 1; NO 1; PP. 21-22Article
SOLUTION CULTURE EVALUATION OF SWEET POTATO CULTIVAR TOLERANCE TO ALUMINIUM.MUNN DA; MCCOLLUM RE.1976; AGRON. J.; U.S.A.; DA. 1976; VOL. 68; NO 6; PP. 989-991; BIBL. 11 REF.Article
A DESCRIPTIVE MODEL OF SOIL TEST NUTRIENT LEVELS FOLLOWING FERTILIZATIONCOX FR; KAMPRATH EJ; MCCOLLUM RE et al.1981; SOIL SCI. SOC. AM. J.; USA; DA. 1981; VOL. 45; NO 3; PP. 529-532; BIBL. 15 REF.Article