Article ; Online: Foliar Spraying of Nano-Silicate and Nano-Zinc on Wheat (Triticum aestivum L.) Under Salt Stress Conditions Enhances Productivity and Reduces the Optimal Nitrogen Fertilizer Rate
Communications in Soil Science and Plant Analysis. 2023 Oct. 28, v. 54, no. 19 p.2731-2744
2023
Abstract: Salinity stress poses a significant threat to agriculture, as it directly impacts crop growth and yield. The current study aimed at examining the role of foliar nano-silicate (nSiO₂) and nano-zinc (nZnO) applications in increasing wheat productivity and ... ...
Abstract | Salinity stress poses a significant threat to agriculture, as it directly impacts crop growth and yield. The current study aimed at examining the role of foliar nano-silicate (nSiO₂) and nano-zinc (nZnO) applications in increasing wheat productivity and nitrogen (N) use efficiency under salt stress conditions. A two-season field experiment was carried out on sandy soils irrigated with water from high-saline wells (4352 and 7040 mg L⁻¹). The study was conducted in a split-plot design, with main plots assigned to three treatments of foliar application of nSiO₂, nZnO, and control (nZero), and sub-plots assigned to six N fertilizer rates (0–300 kg N ha⁻¹). The use of nSiO₂ and nZnO increased wheat grain yield by 67 and 48% on average over nZero, respectively. When average wheat grain yields were plotted against increasing N fertilizer rates, a quadratic response curve was observed. Derivative solutions of the quadratic functions indicated that grain yield plateaued at 4641, 4560, and 3182 kg ha⁻¹ for nSiO₂, nZnO, and nZero treatments, respectively. The optimal N fertilizer rates for these yield levels were calculated to be 290, 353, and 386 kg N ha⁻¹. When the net returns to N fertilizer and nano-material use were considered, nSiO₂ had the highest net returns and the lowest optimal N fertilizer rate (229 kg N ha⁻¹), followed by nZnO (272 kg N ha⁻¹). The findings of the field experiment demonstrated that foliar spraying wheat with nSiO₂ and nZnO under salt stress conditions enhances productivity as well as responsiveness to N fertilizer. |
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Keywords | Triticum aestivum ; experimental design ; fertilizer rates ; field experimentation ; foliar application ; grain yield ; nanomaterials ; nitrogen ; nitrogen fertilizers ; plant analysis ; salt stress ; wheat ; N recovery efficiency ; nano-materials |
Language | English |
Dates of publication | 2023-1028 |
Size | p. 2731-2744. |
Publishing place | Taylor & Francis |
Document type | Article ; Online |
ZDB-ID | 419718-5 |
ISSN | 1532-2416 ; 0010-3624 |
ISSN (online) | 1532-2416 |
ISSN | 0010-3624 |
DOI | 10.1080/00103624.2023.2240817 |
Database | NAL-Catalogue (AGRICOLA) |
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