To enable the soil to grow good crops the upper layer must be pulverized and weathered.
Lana's condo community was pulverized.
The upper layer of the soil must therefore be free from weeds, finely pulverized and stocked with a readily-available supply of nutriment.
For example, pulverized fuel ash from power generation is widely used today.
If the soil is allowed to become dry and pulverized, rain is likely to run off or " puddle the surface without penetrating it more than a very short distance.
