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Crop Modeling

Nostalgia about Present or Reminiscence about Future

Agrophysical Res. Inst., Russian Acad. of Agric. Sci., 14 Grazhdansky prosp., 195220, St. Petersburg, Russia

View larger version (35K): [in a new window]   Fig. 1. Validity of empirical approach in agroecosystem simulation

View larger version (63K): [in a new window]   Fig. 2. Function of daily photosynthesis rate vs. global radiation and CO2 concentration for (A) a theoretical model and (B) an empirical model

View larger version (47K): [in a new window]   Fig. 3. Function of daily photosynthesis rate vs. daily average temperature and CO2 concentration for (A) a theoretical model and (B) an empirical model

View larger version (60K): [in a new window]   Fig. 4. Function of daily photosynthesis rate vs. water stress index (stomatal resistance) and CO2 concentration for (A) a theoretical model and (B) an empirical model

View larger version (16K): [in a new window]   Fig. 5. Simulated dynamics of shoot and root dry matter of alfalfa during the vegetation period