Tang Zan stood in front of Pei Shu'er, his gaze icy cold.
Upon seeing Tang Zan's expression, those people dared not act recklessly.
They took a step back, visibly angry but reluctant to speak.
Pei Shu'er was also somewhat incensed by their behavior.
Did they really think she was just all talk? Wasn't it her who dug the pond? Wasn't it her who provided the fertilizer?
Most importantly, the Spiritual Spring Water, she was the only one in the world who had it.
Without her Spiritual Spring Water, even with fertilizer, it just improved the soil condition a bit.
At most, the yield might be 1500 kilograms per mu, which is incredibly high in ancient times.
But there was absolutely no way to produce 4000 kilograms per mu.
These people, if they only used farm manure, not knowing the quantity, not knowing the timing for fertilization, not knowing the area to fertilize.
The crops would either lack nutrition, or have excess nutrients, wilting from the farm manure.
