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Table 2 Minimum data required as input into crop simulation models

From: Challenges and opportunities in crop simulation modelling under seasonal and projected climate change scenarios for crop production in South Africa

Site

Weather

Soils

Initial conditions

Management

Latitude and longitude, elevation

_ Average annual temperature

_ Slope and aspect

Daily global solar radiation maximum and minimum temperatures, precipitation

Soil type

_ Soil depth, root growth factor, bulk density

_ Organic carbon, pH, soil nitrogen

Previous Crop root nodule amounts

_ Water

ammonium and nitrates by soil layer

Cultivar name and type, planting date, depth and method, row spacing and direction, plant population, irrigation and water management (dates, methods, and amounts)

_ Fertilizer (inorganic) and inoculant applications

_ Residue (organic fertilizer) applications (material, depth of incorporation, amount, and nutrient concentrations)

_ Chemical (e.g. pesticide) applications (material and amount)

_ Tillage

_ Harvest schedule