Most nut-bearing trees get very large, need to be grown in pairs to produce nuts and can take up to 15 years to start bearing.
Some 13,000 of the 46,000 are grown to produce beef while most of the remainder produce milk, she said.
A little industry has grown up to produce attention-getting fax cover sheets.
Considering that 100Mcalories is grown to eventually produce meat:
In the 16th century, sugar cane was grown near the mouth of the river to produce sugar.
The seed has now grown to produce a healthy harvest and the goat has had four kids.
The switched-on human cells are grown in a culture to produce the drug.
The surviving cells were grown to produce somatic embryos and shoots.
Willow may also be grown to produce charcoal.
Skin is separated and seeds are grown in plastic bags to produce saplings.