PLSC Spring 2025 courses PLSC Course DescriptionsCourse SpotlightPLSC Spring 2025 coursesPLSC Fall 2025 courses PLSC Spring 2025 courses SPSS 3670 3670. Greenhouse Technology and Operations 3.00 credits Prerequisites: None. Grading Basis: Graded Introduction to greenhouse crop management with emphasis on structures, environmental control systems, and management techniques used to control crop response.