At first, there was nothing wrong with corn. Later, in order to focus on big fish, corn was attracted to blend. The correct statement should be Gu Mai language, but maybe everyone thinks that multiple words are uncomfortable to read, so they simply extend the word Gu Mai language. In addition to the Kamai fishing method in Mianyang, some fishermen insist on using "vegetarian bait" as their nests, and 99% of the grains on the market are added with various fragrant attractants (except smelly grains).
Grain and wheat fishing
The main target fish are mostly carp and grass. The traditional fishing with a rock pole and multiple nests really simplifies the fishing tackle, so some people call it "fishing the world with one pole", which is unscientific in itself, exaggerating one fishing method and belittling other fishing methods. I can't think of another one besides the fame and benefits of business speculation.
In fact, each fishing method is a summary of previous experience in dealing with different species of fish through historical practice. "Existence is right", so we should always keep a clear understanding on this point.