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Development of multifunctional copper alginate and bio-polyurethane bilayer coated fertilizer: Controlled-release, selenium supply and antifungal by Xiaoxiao Ma; Shugang Zhang; Yuechao Yang; Zhaohui Tong; Tianlin Shen; Zhen Yu; Jiazhuo Xie; Yuanyuan Yao; Bin Gao; Yuncong C. Li; Mohamed I.D. Helal is a Materials Science article available to read on EtoBox.

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Bio-based controlled release fertilizers (BCRFs) are cost-effective and renewable thus gradually replacing petroleum-based controlled release fertilizers (CRFs). However, most of the study mainly focused on modifying BCRFs to improve controlled-release performance. It is necessary to further increase the functionality of BCRF for expanding the application. A multifunctional double layered bio-based CRF (DCRF) was prepared. Urea was used as the core of fertilizer, bio-based polyurethane was used as the inner coating, and sodium alginate and copper ions formed the hydrogel as the outer coating. In addition, mesoporous silica nanoparticles loaded with sodium selenate was used to modify the sodium alginate hydrogel (MSN@Se hydrogel). The results showed that the nitrogen longevity of the DCRF was much better than that of urea and BCRF. The selenium nutrient longevity of the DCRF was 40 h, much longer than that of sodium selenate. The DCRF improved the yield and nutritive value of cherry radish (Raphanus sativus L. var.radculus pers) with the elevated contents of selenium, an essential trace element. Moreover, the DCRF showed inhibitory effect on Fusarium oxysporum Schltdl. and could res

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Author

Xiaoxiao Ma; Shugang Zhang; Yuechao Yang; Zhaohui Tong; Tianlin Shen; Zhen Yu; Jiazhuo Xie; Yuanyuan Yao; Bin Gao; Yuncong C. Li; Mohamed I.D. Helal

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Materials Science (Physical Sciences)