Department of Applied Biosciences, Kyungpook National University, Daegu 41566, Korea.
Biomolecules. 2022 Jul 25;12(8):1027. doi: 10.3390/biom12081027.
Silicon (Si), despite being abundant in nature, is still not considered a necessary element for plants. Si supplementation in plants has been extensively studied over the last two decades, and the role of Si in alleviating biotic and abiotic stress has been well documented. Owing to the noncorrosive nature and sustainability of elemental Si, Si fertilization in agricultural practices has gained more attention. In this review, we provide an overview of different smart fertilizer types, application of Si fertilizers in agriculture, availability of Si fertilizers, and experiments conducted in greenhouses, growth chambers, and open fields. We also discuss the prospects of promoting Si as a smart fertilizer among farmers and the research community for sustainable agriculture and yield improvement. Literature review and empirical studies have suggested that the application of Si-based fertilizers is expected to increase in the future. With the potential of nanotechnology, new nanoSi (NSi) fertilizer applications may further increase the use and efficiency of Si fertilizers. However, the general awareness and scientific investigation of NSi need to be thoughtfully considered. Thus, we believe this review can provide insight for further research into Si fertilizers as well as promote Si as a smart fertilizer for sustainability and crop improvement.
硅（Si）尽管在自然界中含量丰富，但仍不被认为是植物必需的元素。在过去的二十年中，人们对植物中的 Si 补充进行了广泛的研究，并且 Si 在缓解生物和非生物胁迫方面的作用已得到充分证明。由于元素 Si 的非腐蚀性和可持续性，Si 施肥在农业实践中受到了更多关注。在这篇综述中，我们概述了不同类型的智能肥料、Si 肥料在农业中的应用、Si 肥料的有效性以及在温室、生长室和开阔地进行的实验。我们还讨论了在农民和研究界推广 Si 作为智能肥料以实现可持续农业和提高产量的前景。文献综述和实证研究表明，未来 Si 基肥料的应用预计将会增加。随着纳米技术的潜力，新型纳米 Si（NSi）肥料的应用可能会进一步提高 Si 肥料的利用率和效率。然而，需要慎重考虑对 NSi 的普遍认识和科学研究。因此，我们相信，本综述可以为 Si 肥料的进一步研究提供参考，并促进 Si 作为可持续性和作物改良的智能肥料。
