Lime water and grease have already been made.

After careful boiling, the soil is filtered layer by layer, and together with the wastewater, it is poured into the ditch dug out in advance and goes downstream.

The last remaining layer, extremely fine slag, is alkali.

It's just that, it's just soil alkali!

Think......

Chapter 84 of "The Princes of the Cold Gate" I'm here to beat people I'm hitting my hand, please wait a moment,

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