The Ancient Chinese people pay attention to thick burial, even when ordinary people are buried, they will also find ways to protect the funerary products, not to mention the imperial family at that time, many emperors began to choose the imperial tomb just after taking the throne, and just to see the feng shui of the gentleman needs several, but even so, the historical emperor in addition to qin shi huang, no one in the mausoleum construction of the study and Cixi, and different from the historical emperor, Cixi in the choice to build the mausoleum, considering that there were too many corrupt officials at that time, Therefore, he could only entrust the construction of the mausoleum to his little uncle Yizhen.

After receiving Cixi's appointment, Yizhen did not dare to be sloppy at all, and put all his efforts on Cixi's mausoleum, considering that Cixi arranged for him to supervise in order to ensure the quality of the mausoleum, so Yizhen directly ate and lived near the mausoleum, but so dedicatedly completed the construction of the mausoleum, when Cixi went to check it out, he still found a place of dissatisfaction, Cixi said to Yizhen at that time: "Do you know the meaning of falling grass as Kou? ”
This sentence muffled the craftsmen around him, but Yi Zhen already knew that Cixi was disgusted with the grass on his mausoleum, but it was difficult to avoid the grass growing in the soil, so how could he completely eradicate the situation of grass growing on the mausoleum? Just when Yi Zhen was worried about this, some craftsmen suggested that he could go to the old craftsmen who had built the imperial tomb, they might have a way, how could the old overseer hear Cixi's idea that the tomb for hundreds of years did not grow grass, he bluntly said that he had no way.
However, at that time, Yi Zhen had no way, thinking that even if these old craftsmen had no way, they had more experience in building mausoleums than themselves, so they used Cixi to pressure the old overseers to go back and find a way. One of these old overseers built the imperial tomb for generations, so there were many books in this area at home, and after returning home, he immediately consulted the books and finally found a way, but it seemed really ridiculous, but there was no other way at that time, so he could only try first.
According to the books left by the ancestors, if you want the mausoleum not to grow grass for a hundred years, you need to fry the sealing soil with an iron pot, and the fertility in the soil will disappear, and the grass seeds will not be able to grow, but after the experiment, it was found that such soil will still have grass growth, and seeing that the time required by Cixi is getting closer and closer, the old overseer is very anxious. It wasn't until one day that he saw that the land in front of the workshop where the artillery was made was free of weeds that he came up with a new way. When the old overseer returned home, he mixed the saltpeter and sulfur needed to make the cannon in the soil that had been fried, and after experiments, it was found that it could inhibit the growth of weeds.
After the old overseer informed Yi Zhen of the method, Yi Zhen immediately organized people to start "frying soil", and soon set up 100 large black pots in front of Cixi's mausoleum, under Yi Zhen's arrangement, the workers took turns to fry the soil day and night, and sure enough, after these soils were covered on the mausoleum, there was no longer grass on the mausoleum, Cixi was very happy about this, and also rewarded the old overseer who came up with this method, how did it happen that after Cixi's death, the old overseer secretly told people that the grass on the mausoleum was not good for future generations, it seems that this old overseer also has his own ideas, what do you think?