au.\*:("KOEHLER FE")
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AN X-RAY SPECTROGRAPHIC METHOD OF DETERMINING TOTAL SULFUR IN SOIL EXTRACTS.ROBERTS S; KOEHLER FE.1968; SOIL SCI.; USA; 1968(9), VOL. 106, NUM. 0003, P. 164 A 171Miscellaneous
AVAILABILITY OF 15N LABELED NITROGEN IN FERTILIZER AND IN WHEAT STRAW IN TILLED AND NO TILL SOILFREDRICKSON JK; KOEHLER FE; CHENG HH et al.1982; SOIL SCI. SOC. AM. J.; USA; DA. 1982; VOL. 46; NO 6; PP. 1218-1222; BIBL. 28 REF.Article
STRAW PLACEMENT: ITS EFFECT ON NITRIFICATION OF ANHYDROUS AMMONIA = LOCALISATION DE LA PAILLE: SES EFFETS SUR LA NITRIFICATION DE L'AMMONIAC ANHYDRECOCHRAN VL; KOEHLER FE; PAPENDICK RI et al.1975; AGRON. J.; U.S.A.; DA. 1975; VOL. 67; NO 4; PP. 537-540; BIBL. 15REF.Article