01126nam a2200193 c 4500001001300000005001500013008004100028040001100069041001300080052002600093245028600119300002100405545005000426653022700476700005300703773013500756856002000891900002100911KSI00025442520040713105528040702s1993    hck           000   kor    a0110010 akorbeng01a520.705b중381ㄴc200a老朽化 사과 果樹園 土壤의 層位別 數種 化學 成分 分布 特性 및 그에 따른 老朽化 原因의 推定=xSome chemical properties in soil horizons of a number of deteriorated apple orchards and a assumption about the cause detriorated from those/d姜信正  ap. 11-15;c26 cm  a강신정, 중부대학교 자원식물학과  a과수원사과a노후화 토양a사과 과수원aSoil horizonsaApple orchardsa화학성분a노후화원인aChemical propertiesaDeteriorated appleaOld apple orchard soilaDeteriorated soilapHaExchangeable cation1 a강신정,g姜信正,d1954-0KAC2015184464aut0 t農業開發硏究論文集.d中部大學校 農業開發硏究所.g제2권(1993년 12월), p. 11-15q2<11w(011001)KSE19960275740u2100151aKd00310aKang, Shin Jyung