Mechanistic potato simulation powered by USDA-ARS ACSL's SPUDSIM — running on an hourly time-step with modules for gas exchange, energy balance, CO₂ × temperature × water stress, phenology, and 2DSOIL soil dynamics. Validated 12.6–32.3°C across US production regions.
Simulate potato tuber yield using SPUDSIM's G×E×M framework. Integrates cultivar phenotype, CO₂ × temperature × water stress interactions, management inputs, and 2DSOIL soil dynamics on an hourly time-step — the same model used in USDA geospatial food security assessments.
Evaluate the interactive effects of elevated CO₂ and temperature on potato photosynthesis, tuber yield, and water use efficiency. SPUDSIM's validated CO₂ × T × W module (12.6–32.3°C) reveals how rising CO₂ can partially compensate for temperature stress — but only within limits.
Simulate potato irrigation water requirements and nitrogen leaching risk using SPUDSIM coupled with 2DSOIL. Validated for Pacific Northwest sandy soils where N leaching is a major regulatory and economic concern. Identifies optimal N application timing to minimize loss while maintaining yield.
SF35 delivers research-grade potato production science powered by USDA-ARS ACSL's SPUDSIM — a mechanistic, process-level crop model validated across temperatures from 12.6–32.3°C and used in geospatial food security assessments, Pacific Northwest N leaching studies, and international model intercomparison projects (AgMIP).
For the soil foundation beneath SPUDSIM, see SF34 · 2DSOIL → · For corn science, see SF32 · MAIZSIM → · For soybean, see SF36 · GLYCIM →
Research sources: SPUDSIM (USDA-ARS ACSL) · Fleisher et al. 2010 (gas exchange) · Fleisher et al. 2017 (AgMIP intercomparison) · Fleisher et al. 2020 (cultivar coefficients) · Fleisher et al. 2021 (CO₂ in Europe) · AgrStak · agrstak.com · Patent Pending · US App 63/970,943