Multi-walled carbon nanotubes improve nitrogen use efficiency and nutritional quality inBrassica campestris

Abstract

In order to explore the effects of addition of multi-walled carbon nanotubes (MWCNTs) to soil on the nutritional quality and nitrogen assimilation and utilization by Brassica campestris, a pot experiment...

Increase in the active ingredients of traditional Chinese medicine Isatis indigotica through iron nanoparticles supplementation versus carbon nanotubes: a comparative study

“…11,12 Among the various NMs studied, multi-walled carbon nanotubes (CNTs) and iron oxide nanoparticles (Fe 2 O 3 NPs) are considered as potential candidates for enhancing plant growth, defense systems, and metabolic acceleration with less toxicity. [13][14][15][16] For example, foliar applications of 3 mg L −1 Fe 2 O 3 NPs enhanced the antioxidant enzyme activity as well as anthocyanins and flavonoids levels in Hibiscus sabdariffa plants. 14 In addition, an approximately 4-fold increase in rosmarinic acid (RA) in the leaves of Salvia verticillata plants sprayed with 50 mg L −1 CNTs was observed compared to the control, which may have been due to the enhanced RA synthase activity and gene expression.…”

Carbon Dots Improve Nitrogen Bioavailability to Promote the Growth and Nutritional Quality of Soybeans under Drought Stress

“…Previous reports revealed that the improvement of N availability of plants offered an effective strategy to simultaneously improve N use efficiency (NUE) and grain yield. − Herein, the soil application of CDs significantly increased N content in the shoots and roots of soybeans by 18.5% and 14.8%, respectively (Figure e), while the N content in the soil decreased by 7.5% (Figure f). It can be seen that the N utilization efficiencies in soybean shoots and roots were increased by 18.5% and 14.8%, respectively (Figure S6a).…”

Cost–benefit analysis of nanofertilizers and nanopesticides emphasizes the need to improve the efficiency of nanoformulations for widescale adoption

“…Moreover, it may be feasible to combine conventional and nanofertilizers as a co-dosing approach to increase yield even further (Fig. 2), which is currently widely explored, for example, co-dosing fertilizer with carbon-based nanomaterials [32][33][34] . The benefit of the co-dosing method is that it lowers the total cost of fertilizer application (through the use of conventional fertilizers) while increasing the yield (through the use of the nanofertilizers).…”

“…in which X R is the recommended dosage for maize (180 kg N ha −1 ). In terms of the environmental cost of nanofertilizers, it is assumed that nitrate leaching, ammonia volatilization and the release of NO and N 2 O can be reduced by 50%, 10% and 20%, respectively, on the basis of previous findings about NUE improvement strategies 33,34,42,62,65,66 . Notably, nitrate leaching, ammonia volatilization and the release of gaseous NO and N 2 O are closely related to NUE 66 .…”