Greenhouse Emissions and Indoor Cannabis Cultivation

A Look At The Environmental Impact Of The Cannabis Industry   Cannabis and Greenhouse Gas (GHG) Emissions The cannabis industry is booming and with it comes huge financial winnings for those invested in the industry. Looking at this market from a financial, or even “health or self-improvement” standpoint, it is easy to think that society…

An Introduction to Vapor Pressure Deficit

How well do you understand temperature and relative humidity? By Harry Connor Vapor Pressure Deficit (VPD) is used by growers to assess how dry the air is at a given moment. If the air is too dry, photosynthesis will stop in order to protect the plant from exhaustion.  Photosynthesis is the process of converting sunlight,…

3 Signs you Should Invest in a Sealed Cannabis Greenhouse

Cannabis growers today face a huge range of options for growing structures. Traditionally, there are outdoor grows, indoor grow rooms with lights, and year round cannabis greenhouses. More recently, the cannabis greenhouse industry has expanded to include more options ranging from simple hoop houses to advanced hybrid year round greenhouses with insulated side walls, often…

Odor Control for a Cannabis Greenhouse

The following is an edited version of our article on cannabis odor control strategies for grow rooms and commercial greenhouses, published in High Times.   Why is greenhouse odor control important? Sweet, skunky, minty, fruity… the aroma of cannabis is an essential feature of the crop, and a key indication of characteristics and quality. Cannabis’…

Carbon Dioxide and Optimal Plant Growth

By Hervé Maumus-Hue Carbon dioxide (CO2): The Basics  Introduction 1 - Different types of plants, different biological processes 2 - C3 plants: the importance of CO2  supplementation 3 - Supplying CO2 - Considerations 4 - Injection techniques 5 - Estimating the cost of CO2 6 - Injecting CO2 can be more cost effective than supplement…

Plant Diet : How To Grow Healthy Plants

By Hervé Maumus-Hue Managing a perfect growing environment is challenging and is the topic of much research. We know that the environment dictates the efficiency of these chemical and physical processes/reactions. As shown below, the environment can be divided into 9 main parameters called the nine cardinal parameters: CO2, temperature, humidity, light, wind, oxygen in…

What is Quality by Design?

What is QbD? Quality by Design (QbD) is a design approach with a focus on building quality into the original product. A product can be defined as a good, service, information, or an internal process. The QbD process is organized into five major steps: defining the objectives and goals, the discovery of appropriate data, design,…

Tuning the Spectrum – An Introduction to Far-Red 

At Ceres, we help our clients become smarter growers by staying at the forefront of greenhouse technology. We conduct our own research on greenhouse systems and collaborate with research institutions so we can continue to optimize our structures. The following is an overview of Red and Far Red light radiation and its effects on plants.…

Supplemental Lighting Strategies for Commercial Cannabis Operations

Are you spending too much on energy costs?   Now that we’ve covered how greenhouse design can save you on lighting costs, and the pros and cons of HPS and LED lights, we’ll discuss how you can increase lighting efficiencies in your commercial cannabis greenhouse with a smart lighting strategy. Let’s review some lighting terms…