The application of nanofertilisers in agriculture has been widely utilised due to their distinct characteristics and negative impacts of conventional chemical fertilisers. This study thus examined the influence of calcium nanoparticles (CaNPs) on soil composition vis-à-vis performance parameters in Moringa oleifera L exposed to water, 100 mg Ca(NO3)2kg−1 soil and 100, 75 and 50 mg CaNPs kg−1 soil. Soil morphology was determined with a scanning electron microscope coupled with energy dispersive x-ray (SEM-EDX) and elemental composition in both soils and M. oleifera roots determined with inductively coupled plasma-optical emission spectrometer (ICP-OES). The CaNP-amended soils were more crystalline, more fertile and had reduced salinity. An increase in immobilisation percentage of heavy metals, improvement in physiological parameters (percentage germination, vigour indices, relative water contents, lengths of roots and shoots) and photosynthetic efficiency in M. oleifera were recorded. This study has demonstrated that CaNPs could improve soil composition for better plant performance and can act as nanofertilisers mobilising essential nutrients.

中文翻译：

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辣木对钙纳米颗粒（CaNPs）诱导的土壤性质改变对矿物质吸收、生理指标和光合指标的响应

纳米肥料由于其独特的特性和常规化学肥料的负面影响，在农业中的应用得到了广泛的应用。因此，本研究检查了钙纳米颗粒 (CaNPs) 对暴露于水、100 mg Ca(NO3)2kg−1 土壤和 100、75 和 50 mg CaNPs kg− 的辣木 L 的性能参数的土壤组成的影响1 土壤。土壤形态用扫描电子显微镜结合能量色散 X 射线 (SEM-EDX) 和电感耦合等离子体发射光谱仪 (ICP-OES) 确定土壤和油橄榄根中的元素组成。CaNP 改良的土壤结晶度更高，肥沃度更高，盐度更低。增加重金属的固定百分比，记录了油菜中生理参数（发芽率、活力指数、相对含水量、根和芽的长度）和光合效率的改善。这项研究表明，CaNPs 可以改善土壤成分以改善植物性能，并且可以作为动员必需营养素的纳米肥料。