Plant Growth Pecan Model

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Model Description
Theory
              Pecan Plant Growth Model without nitrogen stress
               Pecan Plant Growth Model with nitrogen stress
Flow Chart for Model
               Pecan Plant Growth Model without nitrogen stress
               Pecan Plant Growth Model with nitrogen stress
Input for Model
               Pecan Plant Growth Model without nitrogen stress
               Pecan Plant Growth Model with nitrogen stress
Acquistion of Climate data
                 New Mexico Climate Center - full climate data base- Air Temperature, Humidity, Windspeed, Solar Radiation, rainfall to calculate Penman-Montheith Reference Evapotranspiration
               NCDC- climate data of Air temperature and rainfall to calculate Samani-Hargraves reference evapotranspiration
Inputs to model
              Pecan Plant Growth Model without nitrogen stress
              Pecan Plant Growth Model with nitrogen stress
Down load model ( This is an excel object based model and requires excel to run)
               Pecan Plant Growth Model with nitrogen stress , Oklahoma simulation
              Pecan Plant Growth Model with nitrogen stress , Texas simulation

Publications

1.  T. W. Sammis , J. G. Mexal and D. Miller . 2004 Evapotranspiration of flood irrigated pecans. Ag Water Management, Vol. 69/3 :179-190

2. Andales, A.; J. Wang ;T. W. Sammis; J. G. Mexal; L. J. Simmons; D. R. Miller; and V. .P. Gutschick. 2006. A model of pecan tree growth for the management of pruning and irrigation. Ag. Water Management 84 p77-88.

3. J. C. Kallestad, T. W. Sammis, J. G. Mexal, J. White 2006. Monitoring and Management of Pecan Orchard Irrigation: A Case Study. Horttechnology 16(4):1-7

4. L.J. Simmons, J. Wang T. W. Sammis D. R. Miller. 2007 An evaluation of two inexpensive energy balance techniques for measuring water use in flood-irrigated pecans. (Carya illinoinensis) Ag Water Management p181-191

5.Wang, J. , T. W. Sammis , A. A. Andales , L. J. Simmons ,V. P. Gutschick , D. R. Miller 2007. Crop coefficients of open-canopy pecan orchards. Ag Water Management 88:253-262

6.Wang, J., D.R. Miller, T.W. Sammis, V.P. Gutschick, L.J. Simmons, and A.A. Andales. 2007. Energy Balance Measurements and a Simple Model for Estimating Pecan Water Use Efficiency. Agricultural Water Management 91:92-101

7. J. C. Kallestad, J. G. Mexal, T. W. Sammis and R. Heerema. 2008. Development  of a Simple Irrigation Scheduling Calendar for Mesilla Valley Pecan Growers  HortTechnology 18(4) 714-725

8. J. Wang, T. W. Sammis, D R. Miller. 2008. Eddy covariance measurements of crop water uses: the energy closure problem and potential solutions. In Agricultural Water Management Research Trends Nova Science Publishers In,c , NY.
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