| 摘要 |
<p>The invention pertains to a chelating agent of the formula: (I) wherein Z is cyclohexylene or (CR2)n wherein R is independently H or C1-4 alkyl, and n is an integer of 2-4; X is (CR'2)mCOO-M+ wherein R' is independently H or CH¿3,? m is an integer of 0-3, and M is selected from H, Na, K, and NH4; and Y is independently selected from H, oh, COOOH, SO3H, PO3H2, C1-4 alkyl, halogen, CN, and NO2. The invention further pertains to this chelating agent and a metal ion, preferably manganese ion, preferably to combat manganese ion deficiency in plant cultivation.</p> |
