Purdue Methods: Optimizing Greenhouse Corn Production--This document is based on materials originally posted to the Purdue University HLA Department Plant Growth Facility web site:
(Original Page Archived by WebCite® at


This publication provides a summary of the goals and scope of our studies to optimize greenhouse corn production, as well as a single-page chart of all the recommendations. The chart includes recommendations for substrate, container, irrigation, fertilization, spacing and lighting. In this version, we updated the pot size recommendation.

This document is one entry in a series of questions and answers originally posted to the Purdue University Department of Horticulture & Landscape Architecture’s Plant Growth Facility Web site ( regarding best practices for corn plant growth in a greenhouse. Controlled studies were conducted with the goals of optimizing growth and yield; developing standardized methodology using readily available commercial materials; and providing recommendations for both high-tech and low-tech facilities. Digital images showing treatment differences are included, as well as statistical analysis of data. A summary of recommendations; materials and methods description; and a reference list are available in separate documents.


corn, maize, Zea mays, growing methods, greenhouse methods, greenhouse protocols, greenhouse best practices, Purdue methods, calcined clay, porous ceramic, Turface, tassel storage, pollen storage, automated irrigation, drip irrigation, growth regulator

Date of this Version


Previous Versions

March 18, 2010

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