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Geoengineering has been proposed to stabilize global temperature, but its impacts on crop production and stability are not fully understood. A few case studies suggest that certain crops are likely to benefit from solar dimming geoengineering, yet we show that geoengineering is projected to have detrimental effects for groundnut. Using an ensemble of crop-climate model simulations, we illustrate that groundnut yields in India undergo a statistically significant decrease of up to 20% as a result of solar dimming geoengineering relative to RCP4.5. It is somewhat reassuring, however, to find that after a sustained period of 50 years of geoengineering crop yields return to the nongeoengineered values within a few years once the intervention is ceased.
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http://dx.doi.org/10.1002/2016GL071209 | DOI Listing |
Sci Rep
July 2025
Centro Universitário do Norte do Espírito Santo, Universidade Federal do Espírito Santo, São Mateus, Espírito Santo, 29932-900, Brazil.
The coffee plant has high nutritional demands that are lost when the crop is harvested. Understanding the dynamics of nutrient accumulation in the entire plant and on its components during coffee maturation (beans, husk and whole berries) is essential for optimizing mineral supply at different growth stages and for better fertilizer management. To this end, this study evaluated the accumulation of dry matter, macronutrients (N, P, K, Ca, Mg, S), and micronutrients (Cu, Fe, Mn, Zn, B) in the beans, husk, and the whole berries of six Coffea canephora genotypes.
View Article and Find Full Text PDFSci Total Environ
July 2024
Department of Entomology, Phytopathology and Molecular Diagnostics, Faculty of Agriculture and Forestry, University of Warmia and Mazury in Olsztyn, Poland.
As humanity embarks on the journey to establish permanent colonies on Mars, ensuring a reliable source of sustenance will be crucial. Therefore, detailed studies regarding crop cultivation using Martian simulants are of great importance. This study aimed to grow wheat on substrates based on soil and Martian simulants, with the addition of vermicompost, to investigate the differences in wheat development.
View Article and Find Full Text PDFMetabolites
September 2021
Plant Metabolomics Laboratory, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa (ITQB NOVA), Avenida da República, 2780-157 Oeiras, Portugal.
Actinorhizal plants have been regarded as promising species in the current climate change context due to their high tolerance to a multitude of abiotic stresses. While combined salt-heat stress effects have been studied in crop species, their impact on the model actinorhizal plant, , has not yet been fully addressed. The effect of single salt (400 mM NaCl) and heat (control at 26/22 °C, supra optimal temperatures at 35/22 °C and 45/22 °C day/night) conditions on branchlets was characterised at the physiological level, and stress-induced metabolite changes were characterised by mass spectrometry-based metabolomics.
View Article and Find Full Text PDFNat Food
May 2021
John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA.
Nat Food
March 2021
Center for the Environment, Harvard University, Cambridge, MA, USA.
Agricultural impacts of air pollution, climate change and geoengineering remain uncertain due to potentially offsetting changes in the quantity and quality of sunlight. By leveraging year-to-year variation in growing-season cloud optical thickness, I provide nonlinear empirical estimates of how increased atmospheric opacity alters sunlight across the Earth's surface and how this affects maize and soy yields in the United States, Europe, Brazil and China. I find that the response of yields to changes in sunlight from cloud scattering and absorption is consistently concave across crops and regions.
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