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posted by martyb on Wednesday February 13 2019, @08:47PM   Printer-friendly
from the Balconies-and-roofs dept.

Urban farming has grown by more than 30 percent in the United States in the past 30 years. Although it has been estimated that urban agriculture can meet 15 to 20 percent of global food demand, it remains to be seen what level of food self-sufficiency it can realistically ensure for cities.

One recent survey found that 51 countries do not have enough urban area to meet a recommended nutritional target of 300 grams per person per day of fresh vegetables. Moreover, it estimated, urban agriculture would require 30 percent of the total urban area of those countries to meet global demand for vegetables. Land tenure issues and urban sprawl could make it hard to free up this much land for food production.

Is urban farming a pipe dream, or can appropriating vacant lots for traditional farming or employing hydroponics make it work?

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  • (Score: 0) by Anonymous Coward on Thursday February 14 2019, @01:10AM (1 child)

    by Anonymous Coward on Thursday February 14 2019, @01:10AM (#800811)

    The best substrate is coarsely ground grains. Bake for a few hours at low temp and it's good enough, cheap, and easy to source.

  • (Score: 0) by Anonymous Coward on Thursday February 14 2019, @06:02PM

    by Anonymous Coward on Thursday February 14 2019, @06:02PM (#801068)

    From an urban grain field?
    Because if you depend on conventional farming to grow the materials to grow your urban mushrooms, you're not doing a thing to, um, "improve food security". (A curious euphemism for "prepare for Civil War 2.0: Rural vs. Urban.")