| 摘要 |
The present invention is directed to methods and compositions which include high nitrogen metal amino acid chelates that can increase the metabolic activity or metal concentration in plants. In one embodiment, an amino acid composition can comprise an amino acid chelate with a first metal and first amino acid ligand, where the first amino acid ligand has at least two nitrogen atoms, and an amino acid complex different from the amino acid chelate having a second metal and second amino acid ligand. The amino acid composition can also include nitrogen salts, proteinates, urea, nitric acid, ammonium nitrate, hydrolyzed animal sourced or plant sourced proteins, and combinations thereof.
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