This mod activates fast growth for all standard crops in the mode "Seasonal Growth = NO." Therefore certain growth phases are skipped. Of course, it is still possible to work the fields with a harrow or hoe during the corresponding phase to avoid using herbicides. By skipping the growth phases, it is possible to have between 3 and 4 harvests per year.
Warning: The mod only works on maps that do not overwrite the standard fruittypes themselves