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Assessment of NASA / POWER satellite-based weather system for Brazilian conditions and its impact on sugarcane yield simulation. Sugarcane model intercomparison: Structural differences and uncertainties under current and potential future climates.
NASA / POWER and DailyGridded weather datasets — how good they are for estimating maize yields in Brazil ? Comparison of simulated and observed phenology (left) and grain yields (right) for rice (top), soybean (middle), and maize (bottom). Hybrid Maize, CROPGRO and ORYZA models were evaluated on the ability to reproduced measured phenology and grain yields in well-managed experiments across Brazil showing satisfactory performance (see Figure 1). RWS buffer zones accounted for 50, 25, 47, 52 and 15% of total harvested area for rainfed soybean, rainfed maize, rainfed sugarcane, irrigated lowland rice, and rainfed upland rice while the agro-climatic zones where these sites were located accounted for 86, 66, 88, 72 and 63% of national area for these crops.Statistics from the most recent six crop growing seasons (harvest years: 2012-2017) were used to calculate crop area and average yields. Selected soils were verified by local experts and modified as needed to ensure that simulated soils represented the most common agricultural soils.
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Data from the Atlas is available for use under the Creative Commons Attribution-NonCommercial-ShareAlike 4.
Simulations assumed no limitations to crop growth by nutrients and no incidence of biotic stresses such as weeds, insect pests, and pathogens. Additional note: Early subscription discount is applicable if you become one of the first 15 sponsors and annual licensees.m (upland rice) to reflect the limitation to root growth in deep horizons due to low pH and differences among crop species in rooting patterns and/or tolerance to low pH (Pivetta et al. Most typical maize and soybean crop systems were: 2-y soybean-maize (with one crop per year) and 1-y soybean-maize (‘safrinha'). There are two dominant rice systems: irrigated lowland rice (southern brazil) and rainfed upland rice (north-central and western Brazil). Average (2015-2019) total production, harvested area, and average yield of soybean, maize, sugarcane and rice in Brazil. Department-level data on crop harvested area and average yields for each crop was retrieved from the IBGE – Brazilian Institute of Geography and Statistic).
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