The phrase "a broad field of" is correct and usable in written English.
It can be used to describe a wide range or variety of topics, areas, or subjects within a particular context.
Example: "The research covers a broad field of environmental science, including climate change, conservation, and renewable energy."
Alternatives: "a wide range of" or "a vast area of".
The Department of Culture Media and Sport's deadline for applications from what is expected to be a broad field of candidates closed at 5pm on Friday.
It's a subtle form of humor that requires its audience to have a broad field of knowledge, but once you get the joke, you can't help but laugh.
Another, very different in structure, lays out a broad field of pastel Cubist planes against a corner of realistic old houses in black and white.
The discovery opened a broad field of study into ways of marshaling such cells to combat cancer and other diseases, including the many illnesses associated with AIDS.
Over time, however, the design drew criticism because the display of a broad field of white could be misinterpreted as a declaration of surrender.
"It is very intense — like a Presidential election," he joked, and he sketched out the system: "Normally, each project will have five to eight contenders — some less, some more — but there is a broad field of innovators.
There's no reverence, just a casual appreciation of stuff that any connoisseur with a broad field of vision and a healthy bank account might pick up along the way and live with from day to day.
Each show was framed as an approach to the open-ended question of what is African art, exploring it as a broad field of many different cultures and beliefs.
The outcome gives Democrats a broad field of candidates, but one that is not particularly diverse racially or ethnically: of the five running, all are white and all but one are male.
Its bulging eyes provide a broad field of vision that is useful while landing, said one of the study's authors, Mike Picker, an entomologist at the University of Cape Town.
