Waste milk humification product can be used as a slow release nano-fertilizer

Yanping Zhu, Yuxuan Cao, Bingbing Fu, Chengjin Wang, Shihu Shu, Pengjin Zhu, Dongfang Wang, He Xu, Naiqin Zhong and Dongqing Cai ()
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Yanping Zhu: Donghua University
Yuxuan Cao: Donghua University
Bingbing Fu: Donghua University
Chengjin Wang: University of Manitoba
Shihu Shu: Donghua University
Pengjin Zhu: Guangxi Subtropical Crops Research Institute
Dongfang Wang: Donghua University
He Xu: Donghua University
Naiqin Zhong: Institute of Microbiology, Chinese Academy of Sciences
Dongqing Cai: Donghua University

Nature Communications, 2024, vol. 15, issue 1, 1-13

Abstract: Abstract The demand for milk has increased globally, accompanied by an increase in waste milk. Here, we provide an artificial humification technology to recycle waste milk into an agricultural nano-fertilizer. We use KOH-activated persulfate to convert waste milk into fulvic-like acid and humic-like acid. We mix the product with attapulgite to obtain a slow-release nano fulvic-like acid fertilizer. We apply this nano-fertilizer to chickweeds growing in pots, resulting in improved yield and root elongation. These results indicate that waste milk could be recycled for agricultural purposes, however, this nano-fertilizer needs to be tested further in field experiments.

Date: 2024
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DOI: 10.1038/s41467-023-44422-5

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