Figure 5.
Smartphone being used to evaluate the leaf color of rice plant leaves, which is applicable in detecting nitrogen deficiencies. Reprinted with permission from [65]. ©2020 Elsevier.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.