Good introduction. Only this line, I find needing a bit of improvement;
However, from my point of view, I am convinced that a center for research in agriculture actually
does seem to have an evenplays a more important role to play than a center for business research for my country .
... you have repetitions there; idea and some words too.... Try to present your ideas in a more simple, yet interesting way.
To begin with, my country, China, has the largest population in the world. As a result, making progress constantly in the agricultural technology is very important to my country.
... you repeat "my country" ... use a different synonym.
Overall a good essay. Good structure, ideas, vocabulary ... Good Luck!