And each of the small solar greenhouses had a fire path below, a heat-gathering wall above, and a layer of horse manure piled up on the soil layer to generate heat and keep warm. This ensured that the crops inside grew with sufficient warmth.
The heat-gathering wall, however, would need to be made temporarily.
Longchang Mountain was rich in resources. Back then, besides discovering gold and iron mines, she also found a place with many quartz sand mines.
She had stored some in her space.
She told her aunt, "These quartz sands can be turned into glass. Although we don't have a large cutting machine, given the current conditions, as long as we make glass, we can cut it into smaller pieces. It's not necessary to be as large as a greenhouse."
"By piecing together multiple small solar houses, we can also plant hundreds of acres of grain."
Her aunt had seen glass before. After she rebirthed into this new world, she had seen countless new and interesting things.
