Journal
JOURNAL OF NANOPARTICLE RESEARCH
Volume 16, Issue 11, Pages -Publisher
SPRINGER
DOI: 10.1007/s11051-014-2669-7
Keywords
Foliar fertilizers; Crop micronutrient; Cu-Zn mixed hydroxide nanocrystals; Aqueous solubility; Morphology
Categories
Funding
- Australian Research Council [LP0989217, FT120100813]
- Australian Research Council [FT120100813, LP0989217] Funding Source: Australian Research Council
Ask authors/readers for more resources
Control preparation, aqueous stability, and ion release of several Cu-Zn-containing crystals in suspensions have been investigated as potential dual micronutrient foliar fertilizers. These crystals were prepared by quick co-precipitation through simultaneously adding potassium hydroxide and copper salt solutions into zinc salt solution, and characterized in structure and composition with XRD, FTIR, SEM, TEM, and ICP in detail. As-prepared Cu-Zn mixed hydroxide nitrate was identified as a two-phase mixture while Cu-Zn mixed hydroxide sulfate as a single-phase compound. These crystals are all sheet-like in morphology and stable in aqueous solutions with pH 5-9. No phase change was detected after the samples were kept in shelf for >3 months, suggesting that these crystals have long shelf lives. In terms of ion release, Cu-Zn mixed hydroxide nitrate and Cu-Zn mixed hydroxide sulfate can afford similar to 4 and similar to 1 mg L-1 of Cu2+, respectively, which could be suitable for different levels of copper deficiency in plants. Moreover, both compounds can provide 38-39 mg L-1 of Zn2+ in aqueous suspensions. Thus, our findings suggest that as-prepared compounds can be potentially applied as long-term foliar fertilizers to simultaneously correct deficiencies of copper and zinc in various crops.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available