Challenges activated engineered nanoparticles composites are attracting increasing attention as next generation seed storage materials to retain or increase seed viability, in light of unavailability of seed storage chemicals. Copper sulfide-sepiolite composite (SP-CuS NC) nanoplatform was developed as seed treatment agent to control seed borne fungal pathogen as well to increase the seed quality parameters after application during storage. Copper sulfide-sepiolite nanocomposite (SP-CuS NC) was prepared sonochemically by in situ synthesis of copper sulfide in aqueous media containing dispersed activated sepiolite. The complete topomorphological, elemental and bonding information was obtained from TEM, SEM, EDS mapping, AFM, XRD, IR and UV–visible spectroscopic methods. Results from application of nano composite on freshly harvested paddy seeds at different active concentrations of copper sulfide (ranging from 20 to 500 μg/g) when packed in cotton bags for storage indicated the efficacy of such nano-enabled natural silicate material for seed storage approach due to the restricted delivery of copper at the right place without showing any sign of phytotoxicity. SP-CuS NC inflicted the promotion of seed germination, particularly in the diseased media conditions, which increased with the time of application as well as applied concentration. The most optimized concentration was 500 μg/g for the application of six months in which % enhancement in germination, root length, shoot length, dry weight and vigor index were maximum at 70.92%, 73.69%, 69.65%, 52.21% and 86.14%, respectively (comparison to control) (P-value < 0.05). The % reduction in seed blight and seed rot were 88.17 and 89.81 which was also maximum at the same applied concentration and time of application. SP-CuS NC significantly increased the health and quality parameters of rice seeds as compared to conventional copper formulation which becomes toxic at the comparative concentrations.

鉴于种子储存化学品不可用，激活的工程纳米粒子复合材料作为下一代种子储存材料来保持或增加种子活力，正引起越来越多的关注。开发了硫化铜-海泡石复合材料（SP-CuS NC）纳米平台作为种子处理剂，以控制种子传播的真菌病原体以及在储存过程中应用后提高种子质量参数。原位声化学制备硫化铜-海泡石纳米复合材料（SP-CuS NC）在含有分散活化海泡石的水介质中合成硫化铜。完整的形貌、元素和键合信息是从 TEM、SEM、EDS 映射、AFM、XRD、IR 和紫外可见光谱方法获得的。将纳米复合材料以不同活性浓度的硫化铜（范围为 20 至 500 μg/g）应用到新鲜收获的稻谷种子上，当包装在棉袋中进行储存时，结果表明这种纳米天然硅酸盐材料在种子储存方法中的有效性由于铜在正确位置的限制输送而没有显示任何植物毒性迹象。SP-CuS NC 促进了种子萌发，特别是在有病的培养基条件下，随着施用时间和施用浓度的增加而增加。最优化的浓度为 500 μg/g，施用 6 个月，其中发芽率、根长、芽长、干重和活力指数的提高百分比最大，分别为 70.92%、73.69%、69.65%、52.21% 和 86.14% ，分别（与对照相比）（P 值 < 0.05）。种枯病和种子腐烂的减少百分比分别为 88.17 和 89.81，这在相同的施用浓度和施用时间下也是最大的。与传统铜制剂相比，SP-CuS NC 显着提高了水稻种子的健康和质量参数，传统铜制剂在比较浓度下会变得有毒。分别（与对照相比）（P 值 < 0.05）。种枯病和种子腐烂的减少百分比分别为 88.17 和 89.81，这在相同的施用浓度和施用时间下也是最大的。与传统铜制剂相比，SP-CuS NC 显着提高了水稻种子的健康和质量参数，传统铜制剂在比较浓度下会变得有毒。分别（与对照相比）（P 值 < 0.05）。种枯病和种子腐烂的减少百分比分别为 88.17 和 89.81，这在相同的施用浓度和施用时间下也是最大的。与传统铜制剂相比，SP-CuS NC 显着提高了水稻种子的健康和质量参数，传统铜制剂在比较浓度下会变得有毒。