Bedding and potted plants are traditionally fertilized daily or several times a week with water soluble fertilizer (WSF) applied in the irrigation water. With WSF, the fertilizer components are in a form that can be directly absorbed by the plant. This also means the fertilizer components can immediately impact the soluble salts and the pH
While controlled-release fertilizers (CRFs) are not a recent addition to a grower’s toolbox, they are not nearly as common as traditional water-soluble fertilizers (WSF). Many growers comment that they don’t want to lose the control they have with traditional WSF programs. However, new formulations and technologies in CRF manufacturing, along with a desire for alternative
After seeing how bedding plants are affected by controlled-release fertilizers, three separate studies were conducted to show how the use of these fertilizers influenced the production of potted plants. The Poinsettia Experiments Rooted liners of ‘Premium Red’ poinsettias were potted into 4.5-inch containers filled with a commercial soilless substrate that was amended with CRFs: Osmocote
Horizontal airflow (HAF) fans are used to mix warm air near the roof of the greenhouse with the cooler air at ground level, providing a more uniform growing environment Often referred to as mixing or circulation fans, HAF fans are not the same as ventilation fans and should not be run at the same time.
Increased consumer interest in farmers’ markets, buying local and sustainability make this an opportune time for domestic specialty cut flower growers. Local market advantages of specialty cut flowers exist, including product freshness, quality and availability of stems that do not ship well or are difficult to find. Currently, an estimated 73 percent of cut flowers
Bedding production begins in mid- to late-winter and early spring in the northern half of the U.S., when outdoor air temperatures and light are at seasonally low levels. During this time, greenhouses must be heated to maintain desirable production temperatures. The costs involved can be huge. Energy for heating in northern climates accounts for 10
Flurprimidol drenches have been shown to successfully control height of oriental lilies and Dutch bulbs such as hyacinth, narcissus and tulips, but there is no data that shows how effective flurprimidol drenches are on Easter lilies. Researchers decided to find out.
Pathogens, insects and other pests can seriously impact greenhouse production and reduce profitability. In this fourth article in the Basics of Monitoring series, we provide concepts and tactics to help you develop a comprehensive greenhouse pest and pathogen scouting program. Scouting is a vital part of any integrated pest management (IPM) program and involves systematically
Purdue researchers share their best practices for controlling stem length of common foliage annuals using PGR liner dips.
The cover of an environmental monitoring company catalog contains a quote: “To measure is to know.” Monitoring is an attempt to quantify the invisible, to know before you see. We have become accustomed to this practice in human health and wellness and have our temperature and blood pressure taken. We understand the importance of the