John H. Prueger

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The paper investigates the value of using distinct vegetation indices to quantify and characterize agricultural crop characteristics at different growth stages. Research was conducted on four crops (corn, soybean, wheat, and canola) over eight years grown under different tillage practices and nitrogen management practices that varied rate and timing. Six(More)
"CO2 uptake and ecophysiological parameters of the grain crops of midcontinent North America: Estimates from flux tower measurements" (2013). Keywords: Net CO2 exchange partitioning Gross photosynthesis VPD limitation of photosynthesis CO2 sink Maize Wheat a b s t r a c t We analyzed net CO 2 exchange data from 13 flux tower sites with 27 site-years of(More)
ABstRAct Net CO 2 exchange data of legume crops at 17 ux tower sites in North America and three sites in Europe representing 29 site-years of measurements were partitioned into gross photosynthesis and ecosystem respiration by using the nonrectangular hyperbolic light-response function method. e analyses produced net CO 2 exchange data and new(More)
Wine grape quality and quantity are affected by vine growing conditions during critical phenological stages. Field observations of vine growth stages are too sparse to fully capture the spatial variability of vine conditions. In addition, traditional grape yield prediction methods are time consuming and require large amount grape samples. Remote sensing(More)
Article history: Available online xxxx Keywords: Surface renewal Flux variance Advection Cotton heat flux Irrigated cotton BEAREX08 a b s t r a c t Estimation of surface energy fluxes over irrigated agriculture is needed to monitor crop water use. Measurements are commonly done using well-established techniques such as eddy covariance (EC) and weighing(More)