PSUmodeling/Cycles: 1.4.1

WHAT'S NEW:

1. :sparkles: Added correction terms to pedotransfer functions to ensure calculated hydraulic properties match user input
2. :sparkles: #74 - Added dynamic soil thicknesses due to the change of organic matter and texture
3. :sparkles: Added a new nitrogen harvest index algorithm. As a result, five new parameters were introduced to crop description files
4. :sparkles: The model now reports errors when model start date is later than end date
5. :sparkles: The model now uses the average of max, min, and mean daily temperature for thermal time calculation to improve performance in high temperature
6. :lipstick: #84 - season.txt was renamed to harvest.txt
7. :lipstick: Changed soil organic matter input to soil organic carbon in soil description files
8. :bug: Fixed bug that the weather file range error was not reported correctly
9. :bug: Fixed a bug that CO2 file could not be read correctly when a path was specified

NOTE: Update to this version requires changes in soil and crop description files.

1. Soil description file: The OM, i.e., organic matter parameter has been changed to SOC, i.e., soil organic carbon. To use previously prepared soil description files with the new version, a factor of 0.58 should be used to convert soil organic matter to soil organic carbon.

2. Crop description file: Five new parameters were introduced to enable the new nitrogen harvest index algorithm. These parameters are N_MAX_CONCENTRATION_GRAIN, N_MIN_CONCENTRATION_GRAIN, N_MAX_CONCENTRATION_STRAW, N_MIN_CONCENTRATION_STRAW, and N_PARTITIONING_FACTOR. They are maximum allowable grain N concentration (%), minimum allowable grain N concentration (%), maximum allowable straw N concentration at harvest (%), minimum allowable straw N concentration at harvest (%), and empirical constant in N partitioning (and applied to winter wheat), respectively. Those parameters were added to the end of the Allocation blocks in crop description files.