Distribution of Soil Zinc，Iron，Copper and Manganese Fractions and Its Relationship with Plant Availability

摘要

ＤｉｓｔｒｉｂｎｔｉｏｎｏｆＳｏｉｌＺｉｎｃ，Ｉｒｏｎ，ＣｏｐｐｅｒａｎｄＭａｎｇａｎｅｓｅＦｒａｃｔｉｏｎｓａｎｄＩｔｓＲｅｌａｔｉｏｎｓｈｉｐｗｉｔｈＰｌａｎｔＡｖａｉｌａｂｉｌｉｔｙＺＯＵＢＡＮＧ－ＪＩａｎｄＭＯＲＵＮ－ＣＡＮＧ（Ｉｎｓｔｉｔｕ...