Can fertilizer electrical conductivity (EC) measurements substitute for substrate EC measurements? To find out, two Purdue University researchers experimented with four petunia varieties for a publication that is part of More... Free Download
This publication introduces smart sensing techniques for protected horticulture systems using a smartphone to help monitor several plant traits. After growers capture plant images with the smartphone camera and send imag More... Free Download
Early-flowering varieties of petunia may have different fertilizer needs than late-flowering varieties. However, fertilizer recommendations are usually not variety-specific. This fact sheet provides information on the op More... Free Download
Consumer demand for locally grown and fresh, leafy greens is rising. Not much is known about how individual varieties perform in hydroponic culture. 24 varieties from Romaine, Leaf, Oakleaf, and Head types were grown in More... Free Download
Growth rates differ for lettuce varieties grown in the Midwest. By comparing several varieties and types under different fertilizer concentrations using NFT and CFT production systems, we provide growers with fertilizer More... Free Download
Greenhouse hydroponics allow for year-round production of lettuce and other leafy greens, but heating can be expensive. Cold tolerance was tested for 24 varieties and found that air temperatures of 60 degrees Fahrenheit More... Free Download
In this publication, a Purdue University researcher discusses ways to slow plant growth - a major concern for greenhouse owners during the COVID-19 pandemic. Sales are down but ornamental plants continue to grow. It's im More... Free Download
To produce hydroponically grow crops, such as lettuce, in greenhouses during Indiana winters, heating is required. However, the cost can be high. This publication helps greenhouse growers calculate whether the cost of More...