Test PB Collection: FTE

Evaluate spectral measurements/correlate to crop status (Whiting, Lampinen, Slaughter, Upadhayaya) Relate ETa to plant water status (Shackel, Smart, Sanden) Modeling crop nutrient & water demand Climate/phenology based yield modeling (Whiting, Ustin) N & water modeling in pecan & almond (Sammis, Wan...

Affiliation Investigator Research Programs Patrick Brown, Professor of Plant Nutrition, Department of Plant Sciences, University of California, Davis, CA Crop Nutrient Status & Demand Jan Hopmans, Associate Dean and Professor, Department of Land, Air and Water Resources, University of California, Da...

Fig. 1. Image from NDVI time series Orchard-level NDVI image from a 2008 time series in a study orchard is shown in Fig. 1. The strong variation in canopy size and closure, as an indicator of vigor is demonstrated in Fig. 2.

Fig. 1. Compilation of remotely sensed data mapsOur goal in model development is to produce novel tools for multiyear grower planning to optimize the use of their resources, and for broader uses, such as regional planning and market projections.

Patrick Brown, Saiful Muhammad and Sebastian Saa Silva Growers of tree crops apply a range of different nutrient management strategies.

Update 2012 on the 'Mule' Fig. 1. Mobile unit to mefasure canopy light interceptionUsing a handheld lightbar in measuring PAR, is a relatively slow and labor intensive method.

Fig. 1. Using a hand-held lightbar.

Dave Smart, Daniel L. Schellenberg, Christine M. Stockert, Maria Mar Alsina Nitrogen emissions are an important environmental concern by both State and Federal regulatory agencies. Nitrous oxide as a greenhouse gas has a greater potential to warm the atmosphere than CO2.

Ted Sammis, V. Gutschick, and Juming Wang A modeling approach to understanding the physiological response of a nut tree to inputs of water, nutrients, salinity, cultivation, and pruning offers the only way to understand the complex interaction of these management decisions on nut production.

Sanjit K Deb, John G Mexal, Parmodh Sharma Fig. 1. Pecan trees at Site I in Riverside Co.The limited availability of water is a growing concern and focuses research goals on the need for water conservation and efficient water use.