00883nam a2200253 a 4500001001300000005001500013007000300028008004100031049001700072052001700089082001400106100003600120245014200156260005400298300003300352502006900385504004000454650002200494650002100516650002400537650003000561900002700591950001100618WDM20110025420201119103148ta110406s2009    us a     m    000   eng  0 lWM656793fDP02a635.6bC545e01a635.62211 a최현석,d1975-0KAC20185487010aEffects of different organic apple production systems on seasonal variation of soil and foliar nutrient concentration /dby Hyun-Sug Choi  aAnn Arbor, MI :bUMI Dissertation Services,c2009  axvi, 175 p. :bill. ;c23 cm1 aThesis (Ph.D.) --bUniversity of Arkansas,cPlant Science,d2009  aIncludes bibliographical references 0aApplesxNutrition 0aFoliar diagnosis 0aLeavesxComposition 4aAgriculture, Horticulture10aChoi, Hyun-sug,d1975-0 bUS$108