(Attention!) How to harvest the most

Using Weeders + Fertilizer

If you want to harvest crops the most as possible,you should use Weeders and sprinkle Fertilizer.

What is the best way to harvest, I tried it in field 15.

Following table is the amount of harvest of canola in field 15.

The amount of harvest of canola

(1=1000L)

Weeders and Fertilizer Weeders and not Fertilizer Not Weeders and Fertilizer
The amount of harvest of canola 7258 5900 5900