ajwdewit
commented
1 year ago Hi,
please have a look at the documentation of the SiteDataProvider: https://github.com/ajwdewit/pcse/blob/master/pcse/util.py#L1023 which defines the parameters. Nevertheless, I fully agree with you that the documentation for WOFOST 8.0 is not exhaustive yet. Regarding your question on how to compute these parameters, contact my colleague Herman Berghuijs: herman.berghuijs@wur.nl who is more familiar with nutrient calculations than I am.
Allard
sqwev
As a non-native speaker, I am having difficulty understanding some of the technical terminology and would appreciate your assistance.
My version of WOFOST is 5.5.4, and there are currently no documents available for learning WOFOST80. I am trying to simulate the effects of nitrogen stress on maize growth using this model, but I am having trouble inputting the required parameters. The parameters I am struggling with are NSOILBASE, NSOILBASE_FR, PSOILBASE, PSOILBASE_FR, KSOILBASE, KSOILBASE_FR, NAVAILI, PAVAILI, KAVAILI, BG_N_SUPPLY, BG_P_SUPPLY, and BG_K_SUPPLY.
My experimental data includes measurements of hydrolyzable nitrogen, available phosphorus, available potassium, pH, total nitrogen, soil bulk density, porosity, field water capacity, saturated water content, and the percentages of sand, silt, and clay particles. I would like to know how to calculate the input values for the parameters mentioned above based on this data.
Additionally, I have a few specific questions regarding the parameters. Firstly, I would like to know what NAVAILI refers to. Does it refer to the hydrolyzable nitrogen content at the time of sowing? Secondly, does NSOILBASE refer to the total nitrogen content of the soil minus the hydrolyzable nitrogen content? Lastly, how should I determine the value of NSOILBASE_FR?