01152nam a2200241 c 4500001001500000005001500015008004100030040001900071041001800090049003000108052002200138056001400160082001400174100004800188245023900236260003600475300002800511502009300539653019200632950002100824963003400845965003100879KDM198701780  19941012153939870622s1987    hbka       LB 000   kor    a011001c0110010 akorbkorbeng0 lEM564777lEM558964c2fDP01a524.63b홍491ㅍ  a524.63230 a633.72191 a홍순달,g洪淳達,d1951-0KAC20170376210a폴리에칠렌 필름 被覆이 煙草生育에 關與하는 土壤의 物理化學的 性質에 미치는 影響=xEffect of polyethylene film mulching condition on soil physico-chemical properties in tobacco cultivation/d洪淳達  a청주:b忠北大學校,c1987  aix,46p.:b삽도;c26cm1 a학위논문(박사) --b忠北大學校 大學院:c農化學科 農化學專攻,d1987  a폴리에칠렌a필름a피복a연초생육a관여하a토양a물리화학적a성질aPOLYETHYLENEaFILMaMULCHINGaCONDITIONaSOILaPHYSICOCHEMICALaPROPERTIESaTOBACCOaCULTIVATION1 a비매품b\2500  a농화학과a농화학전공  a연초재배x토양화학