Williamson et al. 2004 Timing of overhead irrigation affects growth and substrate temperature of container-grown plants.
Study shows that irrigating cyclically during the day, rather than before sunrise increases growth. Authors suggest decreased leaf and substrate temperature during the day from irrigating might be associated with increased growth. CS Williamson, SL Warren, and TE Bilderback. SNA RESEARCH CONFERENCE 49:77-80 (2004).
Williamson 2004 Timing irrigation SNA.pdf — PDF document, 245 kB (251664 bytes)