叶子中的氧酸纳米材料的控制释放促进了植物生长和摄取
Bhaskar Sharma1, Hagay Kohay2, Sandeep Sharma1
1Department of Botany and Plant Sciences, University of California, Riverside, California 92521, United States.
ACS nano
|January 13, 2025
概括
新的纳米肥料,和铁氧酸纳米材料 (ZnHAU,FeHAU),改善了对小麦作物的气输送. 这些纳米材料增强了植物生长和营养吸收,同时减少了传统肥料造成的环境污染.
科学领域:
- 农业科学 农业科学
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
背景情况:
- 肥的低效率限制了作物产量,并导致环境污染.
- 开发可控释放 (N) 肥料对于可持续农业至关重要.
研究的目的:
- 开发新的纳米肥料,以有效地提供叶子N.
- 调查Zn-和Fe-化酸纳米材料 (ZnHAU,FeHAU) 控制的释和促进植物生长的影响.
主要方法:
- 通过结和金属-体相互作用合成含尿素的ZnHAU和FeHAU纳米材料.
- 在模拟酸性条件和降雨下,在体外和植物内评估N释放动力学.
- 在低土壤N条件下评估了小麦 (Triticum aestivum) 的植物毒性,增长增强和N吸收.
主要成果:
- 在模拟降雨的情况下,ZnHAU和FeHAU表现出长时间的N释放 (在植物中长达10天) 和高N保留率 (32-53%).
- 与尿素相比,ZnHAU和FeHAU的叶子应用显著增强了小麦新鲜生物质 (∼214%),干生物质 (∼161%),和N吸收 (∼108%),与尿素相比.
- 在叶子N输送剂量高达4%时,没有观察到植物毒性.
结论:
- 附在叶子上的ZnHAU和FeHAU纳米肥料提供了可控的N释放,改善了N的输送和作物中的使用效率.
- 这些纳米肥料为传统的尿素提供了可持续的替代品,最大限度地减少了对环境的影响.
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