"Three tons of struvite… According to the average use of fifteen kilograms per six hundred and sixty six square meters, the actual cultivated land area is definitely more than sixty six thousand square meters, which is much larger than I expected." On the way back, Chu Guang spoke his thoughts out loud while writing in his notebook with a pen.1

"It seems that my speculation is correct. They should have applied some soilless cultivation techniques, and this part of the production capacity accounted for 15% to 30% of the total production capacity... or even more."0

Brown Farm would make some manure itself and buy a little from other merchants. The actual cultivated area was probably larger than Chu Guang thought.0

Before coming to this world, Chu Guang heard of a pipe-type soilless cultivation technique that could maximize the use of space and water resources. As long as the land was fertile enough, the actual production could be ten times more than that of the usual land cultivation.2

In the pre-war era, there seemed to be a similar technology, and the use of space had been maximized. There were skyscrapers that integrated automatic seeding, cultivation, ripening, harvesting, assembly line transportation, and packaging and distribution being developed regardless of energy costs. Those facilities could really achieve more than tens of thousands of kilograms per six hundred and sixty six square meters.1

It was called the computer numerical control (CNC) farming tower, which was regarded as the ultimate peak of industrial...0