摘要
内蒙古河套地区苹果梨叶片营养成份测试表明：Ｎ、Ｋ含量随叶龄增大而降低，Ｐ平稳，Ｃａ、Ｍｇ、Ｍｎ表现出由低到高再降低再升高波浪式变化，Ｃｕ、Ｆｅ、Ｚｎ、Ｎａ含量时高时低，但波动不大。与标准值比较：Ｎ过剩，Ｐ、Ｃａ、Ｍｇ、Ｍｎ适量，Ｋ、Ｃｕ、Ｆｅ、Ｂ、Ｚｎ显著不足，与河套苹果梨树体生长结果表现一致。
The measurement on leaf nutritions of apple-pear in the Hetao plain of Inner Mongolia showed as follows:With increase of leaf age,contents of N and K declined ,content of P kept stable. Contents of Ca,Mg and Mn showed waving changes. Coutents of Cu,Fe.B,Zn and Na showed very little changes.Compared with the criterion,content of N was too high, contents of P,Ca,Mg and Mn were moderate and contents of K,Ca,Fe,B,Zn were not enongh.
基金
内蒙古自治区自然科学基金
