In spring, there was an outbreak of aphids on the Shared Harvest farms. Soapy water and pepper spray were not enough to kill the bugs, which have become susceptible only to pesticides. Leaf vegetables across the farms were all but wasted.

"We can only make up to the consumers with other options, explain our plights, try harder and wait for recovery," Shi says. If the farms had had no support from Shared Harvest members, they would have a hard time weathering such disasters.

Diversity also helps, and the farmers strike a balance by sectioning up the land and growing different produce, so that "one can make up for the shortage of another."

Laura Johnson Hill, a mother of four, looks forward to the "surprise" mixture every week so long as her family enjoys the food.

"It makes you more creative," she says. "And if you can just smell the tomato, you'll know the difference."

"No need to worry about hormones, genetic modifications or herbicide." Yolanda, a mother-to-be says of her share of the harvests. "You don't even need to peel the vegetables. It's just like when we were young."

"The bottom-line is, organic food tastes good," says Kazuyoshi Fujita, head of Daichi wo Mamorukai (the Association to Preserve the Earth), who started the CSA concept in Japan in mid-1970s. "Consumers would finally vote for that which tastes good. So stop judging by the looks, but go for taste and safety standards."

"CSA may provide what urbanites need," says Wu Wenliang, dean of the school of resources and environment sciences at the China Agricultural University.

"You can trust it because you can always find the producer or farmer and voice any concern. When a farmer is paid in advance, he takes care about the quality. When consumers commit to a membership, there is trust."

Wu expects the model to slowly gather momentum, but admits that it is now mainly supported by those who are able to pay a premium for their vegetables.

Shi also harbors the hope that CSA will take off.

"My statistics from experiences show that every five new members will cleanse one mu (666 square meters) of land, and 1,000 members could very well support an entire rural community," she says.

"I believe CSA will bridge the city and the countryside, so that consumers are more invested and share the risks as well as the rewards of farming, while farmers have a bigger incentive to keep the environment functioning properly."