Should nature be to bestow such a catastrophe upon the planet, it would massively disrupt global trade, leading to shortages in critical commodities, including liquid fuels and foods produced by industries. To combat this and prepare for the future in advance, a team of scientists determined vegetable crops that humans would be able to grow to sustain their food calorie and protein supply per land area for both urban and near-urban agriculture. They deduced the results using both the plots of urban spaces as well as the properties of these edible crops.
The crop that topped the list of the best urban agriculture crops for apocalyptic scenarios was peas. "Peas are a high-protein food. They grow well in urban agriculture environments. If you want to feed someone, growing peas minimizes the amount of land you need to feed that person," Matt Boyd, founder and research director of Adapt Research, explained to Live Science. For the hypothesized nuclear winter, the most optimum crops they deduced were sugar beet and spinach.
The second contender in the list of the most optimum crops for a catastrophic reality was potatoes. For nuclear winters, wheat and carrots were proven to be the best and most appropriate. These crops, however, were designated to lists spawning agriculture driven by the properties of food crops. In the next step, the team analyzed the most optimal crops based on the structural characteristics of midsize cities where there was a shortage of green spaces.
Here, too, peas topped the list for normal conditions. Peas, the researchers said, require 3,143 square feet of land to satisfy one person’s caloric and protein needs for a year, whereas a combination of cabbage and carrots requires 8,364 square feet, which is almost thrice as much land, Boyd explained. They used Google Earth of Palmerston North to analyze the plot sizes of green spaces. To their surprise, they found that there weren’t sufficient green spaces to feed all the people dwelling in urban settlements. "Surprise, surprise. The city can't feed all its people," Boyd said.
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