The 50-year-old was found trapped and emergency services were called to the scene and tried to resuscitate Madera. He later died in an ambulance.
"Such guidance may draw the attention of farmers to the dangers of using materials that are not 'high visibility', and encourage them to use materials that are 'high visibility'.
"The use of such materials may reduce the chances of further deaths occurring in circumstances similar to those in which Mr Madera died," Coroner Tutton said.
Worksafe reports that there are no standards or guidance in relation to taped or bungee-style gateways, which are used on many dairy farms throughout New Zealand.
Worksafe found that the owners had a bungee across the gateway since 2008, but they said the "weather, wear and tear, and mud" had affected its visibility.
"Had the bungee cord been more visible, the accident leading to Mr Madera's death might not have occurred," Coroner Tutton said.
"Tony Smith, Investigations Manager (Canterbury and West Coast), Worksafe, responded to that notification and advised that the Worksafe food practice guidance document "Safe Use of Quad Bikes" is due to be reviewed later this year."