Author Archives: Christopher J. Currey

About Christopher J. Currey

Christopher J. Currey (ccurrey@purdue.edu) is a graduate student at Purdue University

Comparing LED Lighting To High-Pressure Sodium Lamps

Cuttings of vegetatively propagated bedding plants are frequently rooted in late winter and early spring to meet the spring and early summer market demand for flowering bedding plants. However, this is also the time when dirty and old glazing material, interior superstructures, and hanging baskets suspended above benches reduce already seasonally low ambient outdoor daily

Keeping Cool With Greenhouse Shading

Shade is used to reduce the temperature and light inside a greenhouse. The radiant energy from the sun can easily build up inside of a greenhouse during the summer and increase temperatures beyond the desired range for many crops. Additionally, light levels in the summer regularly exceed the usable level by plants, and excess light

DLICALC Online Tool Helps Growers Caculate Daily Light Integral

Managing all the different environmental and cultural aspects of greenhouse crop production can be an intimidating and daunting task, especially during the peak production season. But it’s necessary to produce a high-quality, salable plant. The greenhouse is full of moving targets, from root zone pH and EC to plant growth, air temperature and light. Managing

Using Parboiled Rice Hulls In Substrates to Finish Greenhouse Crops

Have you considered replacing perlite with whole parboiled rice hulls (PBH) or peat with ground PBH in your growing substrate for finishing spring bedding plants, but are not convinced they are an effective substrate component? Alternative substrates are a hot topic, as many growers are looking for more sustainable growing mixes, lower production costs and

Using Parboiled Rice Hulls in Propagation Substrates

It is fairly common for substrates used in cutting propagation to be comprised of sphagnum peat moss and perlite or other materials. While there is no doubting the usefulness and effectiveness of peat and perlite as substrate components, some growers are looking for alternatives. Propagation substrates do have particular requirements compared to mixes used for