Interactive effects of drought, organic fertilizer, and Zinc Oxide Nanoscale and Bulk Particles on Wheat Performance and Grain Nutrient Accumulation
| Author | Christian O. Dimkpa | |
| Author | Joshua Andrews | |
| Author | Joaquin Sanabria | |
| Author | Bindraban, Prem S. | |
| Author | Upendra Singh | |
| Author | Wade H. Elmer | |
| Author | Jorge L. Gardea-Torresdey | |
| Author | Jason C. White | |
| Date of acession | 2023-09-01T07:03:29Z | |
| Date of availability | 2023-09-01T07:03:29Z | |
| Date of issue | 2020-06-20 | |
| Abstract | Drought (40% field moisture capacity), organic fertilizer (O-F; 10%), and nano vs. bulk-ZnO particles (1.7 vs. 3.5 mg Zn/kg) were assessed in soil to determine their interactive effects on wheat performance and nutrient acquisition. Drought significantly reduced (6%) chlorophyll levels, whereas nano and bulk-ZnO alleviated some stress, thereby increasing (14-16%) 25 chlorophyll levels, compared to the control. O-F increased (29%) chlorophyll levels and counteracted Zn’s effect. Drought delayed (3-days) panicle emergence; O-F, nano and bulk-ZnO each accelerated (5-days) panicle emergence under drought, relative to the control and absence of O-F. Drought reduced (51%) grain yield, while O-F increased (130%) yield under drought. Grain yield was unaffected by Zn treatment under drought but increased (88%) under non drought condition with bulk-ZnO, relative to the control. Drought lowered (43%) shoot Zn uptake. Compared to the control, nano and bulk-ZnO increased (39 and 23%, respectively) shoot Zn in the absence of O-F, whereas O-F amendment enhanced (94%) shoot Zn. Drought increased (48%) grain Zn concentration; nano and bulk-ZnO increased (29 and 18%, respectively) grain Zn, relative to the control, and O-F increased (85%) grain Zn. Zn recovery efficiency was in the order O-F>nano-ZnO>bulk-ZnO, regardless of the water status. Grain Fe concentration was unaffected by drought, under which O-F significantly reduced grain Fe, and nano-ZnO significantly reduced grain Fe, in the absence of O-F. Nano and bulk-ZnO also significantly reduced grain Fe, with O-F amendment under drought. Drought can have dire consequences for food and nutrition security, with implications for human health. This study demonstrated that drought-induced effects in food crops can be partially or wholly alleviated by ZnO particles and Zn-rich O-F. Understanding the interactions of drought and potential mitigation strategies such as fertilization with Zn-rich organic manure and ZnO can increase options for sustaining food production and quality under adverse conditions. | |
| Citation | Dimpka, C.O., J. Andrews, J. Sanabria, P.S. Bindraban, U. Singh, W.H. Elmer, J.L. Gardea-Torresdey, and J.C. White. 2020. “Interactive Effects of Drought, Organic Fertilizer, and Zinc Oxide Nanoscale and Bulk Particles on Wheat Performance and Grain Nutrient Accumulation,” Science of the Total Environment, 722:137808. https://doi.org/10.1016/j.scitotenv.2020.137808 | |
| URL | https://hub.ifdc.org/handle/20.500.14297/2385 | |
| Language | en_US | |
| Subject | Manures | |
| Subject | Drought | |
| Subject | Wheat | |
| Subject | Organic fertilizers | |
| Title | Interactive effects of drought, organic fertilizer, and Zinc Oxide Nanoscale and Bulk Particles on Wheat Performance and Grain Nutrient Accumulation | |
| Type | Article |