Fabrication of a straw-based degradable mulch film with magnetically controlled-release glyphosate
In this study, a straw-based degradable mulch film was prepared with a similar heat and moisture retention effect to polyethylene mulch film and good magnetically controlled-release performance for glyphosate to promote growth of crop and inhibit grass simultaneously. [Display omitted] •A straw-base...
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Veröffentlicht in: | Chemical engineering journal (Lausanne, Switzerland : 1996) Switzerland : 1996), 2024-05, Vol.487, p.150590, Article 150590 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | In this study, a straw-based degradable mulch film was prepared with a similar heat and moisture retention effect to polyethylene mulch film and good magnetically controlled-release performance for glyphosate to promote growth of crop and inhibit grass simultaneously.
[Display omitted]
•A straw-based mulch film with magnetically controlled-release glyphosate (SMFG@ASO) is prepared.•Magnetic field can control the release of glyphosate from SMFG@ASO effectually.•The degradable SMFG@ASO can reduce plastic pollution and waste of straw resource.•SMFG@ASO can promote corn growth and inhibit ryegrass germination significantly.
To solve three main problems in agriculture (plastic mulch pollution, difficult straw recycling, and low utilization efficiency of pesticides), a multifunctional mulch film (MF) was fabricated. In this study, corn straw was mixed with xanthan gum, glyphosate (Gly), Fe3O4, and MIL-100(Fe) to obtain a MF named as SMFG with magnetically controlled-release Gly. To improve the hydrophobicity and stability of SMFG, the surface was coated by amino silicone oil (ASO) to get SMFG@ASO. SMFG@ASO had well insulation and moisture retention properties close to polyethylene MF. Meanwhile, the weight loss ratio of SMFG@ASO increased with time and could reach 59% underground in 120 d, indicating the good biodegradation behavior of SMFG@ASO. Importantly, pot experiment showed that SMFG@ASO could significantly promote growth of crop and inhibit grass. Besides, earthworm experiment illustrated that SMFG@ASO possessed a high biosafety and could increase the relative abundance of beneficial bacteria (Flavobacterium) from 0.08 to 0.21 and soil quality. Thus, this study provides a new method to prepare a straw-based degradable MF for resolving the problems of plastic pollution and waste of straw resources simultaneously to realize the integration of herbicide and MF. |
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ISSN: | 1385-8947 1873-3212 |
DOI: | 10.1016/j.cej.2024.150590 |