I want to know the answer to the following question:
Which crops are produced in the Delta-area?
All the background I'm provided with is that "The Tanana Valley is another notable agricultural locus, especially the Delta Junction area, about 100 miles (160 km) southeast of Fairbanks, with a sizable concentration of farms growing agronomic crops; these farms mostly lie north and east of Fort Greely.". Is that enough to answer the question?