Table 1. IPA structure of the survey.

Category	1. Expected outcomes
Item	Economic feasibility	Efficiency	Satisfaction
Question	Labor saving	Improvement of land use	Improvement of working environment
	Productivity improvement	Uniformity of seedlings	Enhancement of job satisfaction
	Cost reduction in management	Reduction in work-related injuries	Enhancement of workers’ technical skills
	Reduction of seedling period	Increased efficiency in management	Enhancement of convenience
	Increase in income	Expansion of designated quantities	Reduction of manual labor
Category	2. Detailed process
Item	Labor force	Productivity (comparison with open field) manageability
Question	Seeding	Improved productivity	Automatic irrigation system
	Weeding	Development of roots	Automatic nutrient supply system
	Pesticide/fertilizer application	Decreased mortality of seedlings	Automatic lighting system
	Loading/unloading	Improved uniformity	Remote control system
	Seedling dispatch	Reduced duration	Big data collection system
Category	3. Future prospects
Item	Threat factors		Development strategy
Question	Increase in budget for modernization equipment		Facility standardization
	Increase in material and labor costs		Expansion of supported items with budgetary assistance
	Labor shortage		Improvement of afforestation and nursery systems
	Conflict with foreign laborers		Establishment of AI-based systems
	Permit regulations		Expansion of the bio (Extract) market
	Increase in maintenance and repair costs		Expansion of nursery tree species
	Acquisition of information technology		Expansion of seed suppliers