【摘要】 试验结果表明,冬小麦和夏玉米对锰、锌的吸收规律相似,但是冬小麦对锰的吸收量显著高于对锌的吸收量,约为锌吸收量的2倍,因此易发生缺锰;夏玉米对锰和锌的吸收量相近,但是苗期到拔节期锌吸收率显著高于干物质积累率,易发生缺锌。锰锌配合施用对锌肥的有效性影响不大,但却可明显提高锰肥的有效性,因此是有利于冬小麦和夏玉米锰锌营养、简便易行、效果显著的增产措施。更多还原

【Abstract】 Main results of this study are as follows: The Mn and Zn absorption patterns of winter wheat and summer corn were similar. But the Mn absorption rate of winter wheat was approximately 2 times significantly higher than that of Zn. Therefore, winter wheat was likely deficient in Mn. The Mn and Zn absorption rate of summer corn were similar, but the absorption rate of Zn was much higher than the dry matter accumulation rate from the seedling to jointing stage, so Zn deficiency likely appeared in this period. Mn and Zn combined application only slightly reduced the availability of Zn, but improved the availability of Mn significantly. This method can improve Mn and Zn nutrition of wheat and corn. It is simple to use and effective in yields increasing of wheat and corn.更多还原