Mod: Central Kansas
The tasks for using manure and slurry in 'SoilMod' are as follows:

1. Spread manure or slurry on the field.
2a. For best results, manure has to be ploughed into ground, as it will increase nutrition levels by 3 (up to a max of 3)
2c. Cultivating manure is less effective, as it will only increase by 1.
2b. For slurry, either ploughing or cultivating, will increase nutrition levels by 1 (up to a max of 3.)
2d. Slurry can also be "left unprocessed" awaiting for the next growth cycle, but will then be even less effective, as only up to a max of 1 nutrition level is settled into the soil.

Note that manure which is left unprocessed on the terrain, will dissipate over time (3 days), and will in this case NOT increase nutrition levels.


Fertilizer - the synthetic kind, only when growing

Using organic fertilizer is best, but the synthetic kind could help in situations where just a bit more would be useful.

However, spreading synthetic fertilizer will only be effective when the crops are in their early growing stages. If synthetic fertilizer is spread at a different time, the crops will not accept it.

In SoilMod's advanced mode (which is default) there are 3 types of synthetic fertilizers; type-A, type-B & type-C. Each crop (fruit-type) will only accept one specific type of synthetic fertilizer (or none at all), which can be seen in the 'Fruit Effects' PDA screen.

Using the standard equipment for spreading liquid fertilizer (not slurry though), it is possible to switch spray type to each of the 3 synthetic fertilizer types. The F1 helpbox will show what key to press for that.


Weed plants & herbicide - randomly appears in fields

Patches of weed plants will continuously appear in fields, as their seeds are spread with the winds. Ploughing, cultivating or seeding will remove them, but sometimes using these methods are not possible, so you need to spray herbicide.

In SoilMod's advanced mode (which is default) there are 3 types of herbicides; type-A, type-B & type-C. Any of these herbicides will kill weed plants. However some crops will be affected by a specific type of herbicide, so make sure you check the 'Fruit Effects' PDA screen. In the worst case, crops becomes withered due to being exposed to the specific herbicide type.

When weed plants have been affected by herbicide, they will wither and die some days after. - However by then new weed plants may have appeared closed by.

Using the standard equipment for spreading liquid fertilizer (not slurry though), it is possible to switch spray type to each of the 3 herbicide types. The F1 helpbox will show what key to press for that.