How to add a addtional .conf to nginx.conf

Hi guys,
I want to add a file call blacklist.conf into nginx.conf to block bad bot, how can I do it ? The blacklist.conf:

## Add here all user agents that are to be blocked.
map $http_user_agent $bad_bot {
default 0;
~*^Lynx 0; # Let Lynx go through
libwww-perl 1;
~*(?i)(httrack|htmlparser|libwww|JikeSpider|proximic|Sosospider|Baiduspider|msnbot|BBBike|WWWOFFLE|Widow|SuperHTTP|BlackWidow|HTTrack|^Custo|^AIBOT) 1;
}
## Add here all referrers that are to blocked.
map $http_referer $bad_referer {
default 0;
~(?i)(adult|babes|click|diamond|forsale|girl|jewelry|love|nudit|organic|poker|porn|poweroversoftware|sex|teen|webcam|zippo|casino|replica) 1;
}
## Add here all hosts that should be spared any referrer checking.
geo $bad_referer {
127.0.0.1 0;
192.168.1.0/24 0;
}