It is relatively difficult for Huazhong Agricultural University to take the postgraduate entrance examination for geographic information science, but there are other universities in China that have research directions related to geographic information science that are worth considering. The following are some related majors in university geographic information science that are worth considering:

1. Wuhan University: The geographic information science major of Wuhan University enjoys a high reputation in China, with a strong faculty and a high level of research in geographic information and remote sensing.

2. Institute of Geographical Sciences and Resources, Chinese Academy of Sciences: This is one of the highest-level geographical science research institutions in China, with strong research strength and high academic influence in the research direction of geographical information science.

3. Chinese University of Science and Technology: The School of Geospatial Information Science and Technology of Chinese University of Science and Technology has certain research strength in the field of geographic information science, and it is also worth choosing.

In addition to these schools, there are other universities with certain research and teaching strength in the field of geographic information science, and the specific choice should be based on their own interests and development direction.