The effect of foliar spray fertilizers on the tolerance of <i>Hordeum vulgare</i> to UV-B radiation and drought stress

Januškaitienė, Irena; Kacienė, Giedrė

doi:10.1556/0806.45.2017.030

Cited by 6 publications

(1 citation statement)

References 23 publications

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“…The results suggested that fertilization was the driving factor in soil CO2 emission dynamics regardless of the physical form of the fertilizer. Januskaitiene and Kaciene [44] showed that foliar fertilization on barley enhanced the photosynthetic rate, leading to an increase in growth and yield as a result of a positive effect on metabolic microbial activity [45]. Solid N fertilizers, from CF and VAN, produced similar cumulative CO2 emissions flux to VFN still encouraging crop development and growth that were higher than the Control.…”

Section: Carbon Dioxide Fluxesmentioning

confidence: 99%

Short-term Response of Greenhouse Gas Emissions from Precision Fertilization on Barley

et al. 2022

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Precision fertilization is a promising mitigation strategy to reduce environmental impacts of N-fertilization, but the effective benefits of variable-rate fertilization have not yet been fully demonstrated. We evaluated the short-term response (23 days) of GHGs emissions following variable-rate fertilization on barley. Yields, biomass (grains + straw) and different N-use indicators (N uptake, grain protein concentration, recovery efficiency, physiological efficiency, partial factor productivity of applied nutrient, agronomic efficiency and N surplus) were compared. Four N fertilization treatments were performed: (i) conventional– 150 kg ha−1; (ii) variable with granular fertilizer; (iii) variable with foliar liquid supplement; (iv) no fertilization. According to proximal sensing analysis (Greenseeker Handheld) and crop needs, both variable-rate treatments accounted for 35 kg N ha−1. Cumulative GHGs emissions were not significantly different, leading to the conclusion that the sensor-based N application might not be a GHGs mitigation strategy in current experimental conditions. Results showed that both site-specific fertilizations ensured the maintenance of high yields with a significant N rate reduction (approximately by 75%) and a N use improvement. Variable-rate N fertilization, due to similar yields (~6 tons ha−1) than conventional fertilization and higher protein content in foliar treatment (14%), confirms its effectiveness to manage N during the later phases of growing season.

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Section: Carbon Dioxide Fluxesmentioning

confidence: 99%