Ertragsmod with real crop yield and seed rates v3.0

Hello,

Version 3.0
Sowing and harvest yields of wheat, barley and rape

Version 2.0
- sowing rate of rape from 20 kg / ha to 5 kg / ha changed
- yield of rape comparatively adjusted

Here I have for you a new version of Ertragmods! Crop yields and seed rates been created and tested by experienced farmers. Crop yields are slightly increased, the seed rates seem very low. However, the seed consumption kg per hectare is precisely calculated and set.
Enjoy the mod!