Abstract: [Problem to be Solved] Provided is a nursery pot body having stability over time, exhibiting suppressed decomposition during seedling raising, maintaining sufficient strength at the time of planting, and being rapidly degraded after planting in a field through enzyme treatment immediately before and/or immediately after planting. [Solution] Base paper for a nursery pot body is characterized in that a biodegradable resin layer is provided on at least one surface of a paper substrate, wherein the biodegradable resin layer contains at least 15 mass % of a polylactic acid relative to 100 mass % of a biodegradable resin composition, and a nursery pot body is produced by molding the base paper.