Exact(3)
The semi-empirical approach of the FAO1 Irrigation and Drainage Paper 56, which contains guidelines for computing crop water requirements, can be adapted for bare soil evaporation with a three stage process.
The combination equation of Penman Monteith, modified by Allen et al. [Allen, R.G., Pereira, L.S., Raes, D., Smith, M., 1998. Crop evapotranspiration. Guidelines for computing crop water requirements. FAO Irrigation and Drainage, Paper no. 56. FAO, Rome] (PM56), is the reference equation for ETo estimation.
Multiple cropping (several cropping periods per year) is thus automatically taken into account by separately computing crop water requirements for each cropping period.
Similar(57)
The Surface Energy Balance System SEBSS) algorithm very well captures the spatio-temporal Actual Evapotranspiration (AET) variability, which is relevant to compute Crop Water Requirement (CWR) of commercial farms during the dry season.
There were many intelligent irrigation systems (IISs) available and were used to compute crop water requirements based on climatic data.
Due to this calculation procedure, BioSTAR does not need a separate ET0 calculation (e.g., Penman, FAO, Turc, or other) to compute crop transpiration (Figure 12): P G = P max × 1 - exp - Qe × PPFDI / P max, (1).
The standard approach for computing reference crop evapotranspiration (ETo) is the FAO-56 Penman-Monteith (FAO-PM) method, which requires data on air temperature, radiation, air humidity and wind speed.
Equations to compute the crop coefficient parameter are also included and validated for the same kind of crop.
i Output probes are computed by cropping subset of plane waves multiplied by probe complex coefficients, and j summed to form output probe, k which is then saved.
In a first step, the above-ground biomass is computed for each crop using these empirical conversion factors.
Using the predicted values of π j, cult and shc, we computed the expected crop pollination rate of each sampled mother j under the best fitted model.
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