Tag Archives: environmental

How To Select The Best Monitoring System For Your Cannabis Greenhouses

By Rob Fusco
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Maintaining an environment that supports cultivation and keeps plants healthy is not an easy task. In cannabis growing, there are a variety of factors that greenhouse managers and personnel must monitor to ensure that their plants are in a healthy environment that fosters growth and development. Temperature, humidity, lighting and CO2 levels are a few of the conditions that need to be tailored to each cannabis greenhouse operation. However, it can be difficult to constantly monitor the status of your equipment and the greenhouse environment, especially after hours or during the off-season.

A remote monitoring system that’s properly selected and installed can help greenhouse managers keep their cannabis plants healthy, multiply their yields and increase return on investment. This type of system also helps operators identify patterns and trends in environmental conditions and get insight into larger issues that can prevent problems before they arise.

Cloud-based monitoring system base unit in weatherproof enclosure

Here are some tips on key conditions to monitor and what you need to consider when selecting a monitoring system for your cannabis greenhouse operation:

Temperature

Temperature plays a crucial role in any cannabis grow operation. The climate in your greenhouse must be warm enough to nurture photosynthesis and the growth of cannabis plants. Setting the incorrect temperature will significantly impact the potential yield of the plant and the rate at which it develops. A temperature too low will slow the growth of the cannabis, but too hot can lead to heat stress for your plants. The ideal temperature for a standard greenhouse is between 70 and 80 degrees Fahrenheit. However, depending on the stage of plant and desired growth densities, the temperature of the greenhouse needs to be adjusted accordingly.

Humidity Levels

Humidity directly affects plant photosynthesis and transpiration, so controlling humidity is vital in greenhouse growing. The ideal relative humidity (RH) for cannabis growth is around 60%. A low humidity level can cause water to evaporate too quickly for photosynthesis, while a humidity level that is too high can cause poor growth and possible mold and fungal disease. Monitoring the moisture content in the air of your greenhouse will help the plants during the transpiration process, increasing absorption of nutrients and overall health of the cannabis. 

Lighting

Your cannabis may be getting an abundance of natural light during the summer months, but maintaining adequate sunlight during the winter months can be a challenge. As a solution to this, many greenhouse managers equip their facilities with additional lights to supplement natural light during off-seasons or off-hours. To achieve the best possible yield, a cannabis plant in the budding stage should receive twelve hours of light each day, while other stages could require additional lighting. For example, the growth stage could require your cannabis to be exposed to sunlight for up to eighteen hours a day.

CO2 Levels

Like any other plant, cannabis requires CO2 to breathe. Greenhouse managers must set and monitor the CO2 levels in their facility to make sure that there is an adequate amount for the plants to develop, grow and be healthy. The amount of carbon dioxide required for your cannabis depends of the size of the facility and the amount of light the plants are receiving. However, a standard grow area for cannabis can maintain a CO2 range from 1000 to 1500 parts per million (PPM). A level below that threshold can result in slower growth of the plants, while a level above would lead to unused and wasted CO2.

Soil moisture sensor

Irrigation and Soil Moisture

One way to ensure a good yield from your cannabis is to water it regularly and monitor your soil moisture. Overwatering your plants can have the same effect, if not worse, than letting the soil become too dry. Plants’ roots need oxygen to survive, unlike leaves that breathe CO2, and when the soil is waterlogged the roots can’t provide their function. The lack of oxygen interferes with the roots’ nutrient uptake and photosynthesis causing the cannabis plant to wilt. The exact moisture content of the soil depends on the size of your greenhouse, temperature and humidity. Whether you hand water or are using a drip irrigation system, being aware of your soil moisture is vital to the long-term health of your cannabis.

Air Circulation

Your greenhouse environment should mimic the ideal conditions in which cannabis plants flourish. With an indoor facility, you have the ability to control air circulation by venting hot air out and blowing fresh air in. Creating a circulation of air inside your greenhouse will increase your cannabis plant’s growth speed and yield. Additionally, an exhaust system helps control the temperature and humidity, while also preventing the invasion of mold and pests that thrive in hot, stagnant air.

Greenhouse Security

When growing something of value, like cannabis, there will always be a threat of intruders. Whether your greenhouse is in a populated area or around hungry wildlife, any intruder could be detrimental to your overall yields and profit. Remote monitoring systems can give you peace of mind and instantly alert you when there is an unwanted presence in your greenhouse.

Knowing all the possible threats to your cannabis greenhouse helps you evaluate your specific needs, and ultimately identify the proper remote monitoring system.

Selecting the Right Monitoring System

Other factors to consider when choosing a monitoring system right for your operation include:

  • Base unit and sensors
  • Wireless or hardwired sensors
  • Communications to your site (Phone, cellular, Wi-Fi, etc.)
  • Alarm notification
  • Programming and status checks
  • Data logging
  • Return on investment

Base Units and Sensors

Each condition in your greenhouse that you want to monitor requires its own input on the base unit of the monitoring system. You must match your needs with the number of inputs available. A good fit for a smaller cannabis greenhouse may be a lower-cost, non-expandable monitoring system. However, larger facilities have many monitoring points and more people to alert when there’s a problem. If your cannabis operation is poised for growth, purchasing an expandable system could add value to the initial purchase because you wouldn’t have to replace your entire system in the future.

Your monitoring system should also have an internal rechargeable battery backup to ensure continuous monitoring and alerts in the event of a power outage. It is also recommended to have each base unit in a sheltered enclosure to protect it from moisture, dirt and other hazards.

Placement of sensors is also crucial. For example, temperature sensors in your greenhouse should be placed throughout the facility. They should be next to your thermostat and in the center of your greenhouse, preferably away from direct sunlight.

Wireless or Hardwired Sensors

Remote monitoring systems offer the option to have sensors hardwired directly to the base unit or sensors wirelessly connected. A hardwired monitoring system connects the sensors to the base device with wires. Generally, trenching long distances for wires is time consuming and costly. So alternatively, a wireless system uses built-in radio transmitters to communicate with the base unit. Some monitoring systems can accommodate a combination of hardwired and wireless sensors.

Communications to Your Site

Monitoring devices that use cellular communications must be registered on a wireless network (like Verizon or AT&T) before you can send or receive messages. Because cellular devices perform all communications over a wireless network, it is important that there be sufficient signal strength at the greenhouse. It is a good idea to check the signal quality in the area before purchasing a cellular product. If the cellular network has less than desirable coverage, it is possible to install an external antenna to help increase cellular signal.

Alarm Notifications

When monitoring systems identify a change in status, they immediately send alerts to people on the contact list. If you don’t want all of your personnel to receive notifications at the same time, certain devices can be programmed to send alerts in a tiered fashion. It is important to consider the reach of the communications, so that you’ll be notified regardless of your locations. Multiple communications methods like phone, email and text provide extra assurance that you’ll get the alert. Also, note of the number of people the system can reach and if the system automatically cycles through the contact list until someone responds. Make sure the system allows for flexible scheduling so that it doesn’t send alarms to off-duty personnel.

Programming and Status Check

If you’re responsible for maintaining a commercial greenhouse facility, you want a system that will provide real-time status of all monitored conditions on demand. There are a few different ways to access your sensor readings. Options include calling to check status, viewing a web page, either on a local network or on the cloud, or accessing the information via an app on your mobile device. With a cloud-based system, the devices supervise themselves. This means if the internet or cellular connection goes down, the device will send an alarm to alert the appropriate personnel.

If you don’t select a cloud-based system, you will be limited to logging in through a local area network, which will allow you to make programming changes, access status conditions and review data logs. If internet connectivity is not available at your location, you will want to choose a cellular or phone system rather than Ethernet-based option.

Data Logging

Sample greenhouse monitoring data log

Data history is valuable in identifying patterns and trends in your cannabis greenhouse conditions. Manually monitoring and recording environmental parameters takes a significant amount of personnel time and detracts from other important workplace demands. However, many monitoring systems automatically save information, recording tens of thousands of data points, dates and times. Cloud-based logging provides an unlimited number of records for users to view, graph, print and export data trends.

Analyzing data samples may lend insight to larger issues and prevent problems before they arise. For example, if the data log shows power fluctuations occurring at a regular time, it could be indicative of a more serious problem. Or, if the data shows signs of a ventilation fan or supplementary lighting beginning to malfunction, they can be repaired or replaced before total failure occurs.

Return On Investment

When deciding how much you should pay for a remote monitoring system, tally up the entire cost, fully installed with additional peripherals and sensors and any labor fees for installation. Then consider the value of your cannabis plant inventory and greenhouse equipment. Finally, factor in the cost of downtime, should an environmental event shut down your operation for a period of time.

Final Thoughts

Choosing the right greenhouse monitoring system and sensors could mean the difference between life and death for your cannabis plants. Understanding the conditions you need to watch and monitoring systems’ capabilities are they best way to protect your investment.

 

Cannabusiness Sustainability

Dear Cannabusiness Community

By Olivia L. Dubreuil, Esq., Brett Giddings
2 Comments

Dear Cannabusiness Community,

You may have read our two recent articles. We received so much positive feedback that Aaron Biros (editor-in-chief of Cannabis Industry Journal) has invited us to continue with our own column at CannabisIndustryJournal.com. We are very happy to launch this column, and we thought we would take this opportunity to introduce our project, our vision and ourselves so you can understand where we are coming from when you read this series of articles.

Brett and I both have a background in business sustainability and corporate responsibility. We both have backgrounds in management consulting, with a specific expertise in sustainability issues along the supply chain. We have been working together for almost nine months now on sustainability issues in the Bay Area. In May, we started to get interested in sustainability in the cannabis industry and before we knew it we were diving deep into research relating to the environmental, social and ethical impacts of the legal cannabis industry. It was actually difficult to find a lot of information, as the reign of prohibition still very much influences what is available.cannabusiness

In June, we attended the National Cannabis Industry Association’s conference in Oakland to open up the conversation with cannabis industry players and to find out about people’s attitudes and approach to sustainability. The results were overwhelmingly positive. Not only were we encouraged to launch a project, but also excited to discover that many of the speakers presenting at the conference referenced sustainability in one way or another when they talked about environmental impact awareness, social justice, ethics or about staying competitive when “big business” enters the market.

What started out as a side project quickly became the center of focus this summer when we decided to incorporate Project Polaris, a California non-profit, to deliver sustainability knowledge and expertise to the cannabis industry.

Our thinking is as follows:

Thinking about sustainability, means thinking strategically about business. As we forge a new and upcoming industry, let’s seize the opportunity to make it a sustainability-focused one! Let’s create generally accepted industry principles that fosters a positive image of the industry and teaches newcomers about best environmental and social practices. Let’s create a voluntary and industry-led socially responsible code of conduct for cannabis business owners and suppliers, helping the regulators, as they will be drafting all of the future regulations of the legalized cannabis market. Let’s do more research on the market and the consumer. Let’s develop clean and green alternatives to dirty processes or practices. Let’s elevate the discussion and create a model industry, one where short-term, large-scale, quality-lowering corporate interests are kept at bay.

With this vision in mind, we created Project Polaris because we believe that this is a real opportunity for the industry to be a role model for other industries (and educate legislators as well as drive public opinion in those states that are still under prohibition laws). We believe there is a real economic opportunity for those businesses that understand how to embed sustainability properly within their business model. Because we know that sustainability influences legislators in a positive way because it sheds a positive light on businesses.

In the upcoming months, we will continue to research and report on sustainability-related issues facing the cannabis industry, such as packaging, edibles, “organic” in cannabis, butane extraction versus CO2 extraction and so on. We also welcome questions from our readers. If you have a question, please post it in the comments section below.

We will also take this opportunity to call out to cannabis industry organizations, cannabis businesses, or cannabis related services and product suppliers to get in touch with us if they wish to find out how to integrate sustainability more concretely into their action plan. We are not planning on doing this alone, we are seeking partners to join us on this journey, and we want to partner with you on your journey to Cannabusiness Sustainability.

PS: We still have one seat open for the board of directors and would love to hear from you if you are interested!

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Soapbox

Cannabis, Soil Science and Sustainability

By Drew Plebani
5 Comments
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The average commercial cannabis cultivator seems to be following the modern agricultural paradigm. That model is based on questionable and, one might say, ineffective soil systems management.

In the high-yield cannabis world, amidst decades of prohibition, following the lead of the modern agricultural model has resulted in the adoption of cultural practices that go something like this: Use and destroy the soil, then dispose of it once it is rendered lifeless and useless due to repeated heavy applications of chemical fertilizers, pesticides, and other poisons.

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(Left) unimproved site soil next to (right) improved site soil. Notice the root mass developing on the right

Certainly conventional agricultural food production and the soil management systems underpinning them are faltering, evidenced by soil systems deteriorating many times faster than they are being improved. This qualifies as a failure in my book.

What will be the fate of profit margins, sustainability and medicine in the cannabis industry if we continue to follow blindly in the footsteps of chemical agriculture? Perhaps it is time to turn over a new leaf.

A little context for the discussion: scientists say the Earth has lost a third of arable land in the past 40 years, and some say soil erosion is the number one challenge facing the world today. Why? How?

Well…world agricultural production accounts for about three-quarters of the soil erosion worldwide. This steep decline in arable soil is occurring during a time when the world’s demand for food is rapidly increasing. It is estimated that the world will need to grow 50% more food by 2050, and it is important to note that, the total volume of food necessary, remains relative to the nutrient density of the food.

Time for a radical solution, and cannabis can lead the way.

Currently, cannabis is the most profitable crop per land area and very likely the most resource-consumptive crop grown (due to the current legal and regulatory climate and thus limited supply vs. demand).

As the cannabis industry continues to grow, now more than ever we have the opportunity, and I believe the responsibility, to cultivate in ecologically mindful ways, improve the end product and it’s positive impacts, increase both short-term and long-term profits, decrease or eliminate waste and lower the carbon footprint of cannabis cultivation operations.

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A cover crop under trellis’ with cannabis plants

Most importantly, we have the opportunity to fund, implement and lead the way in research and development of sustainable, medical, phytonutrient-dense crop production methodologies.

Only by implementing more rigorous scientific methods to cannabis cultivation can we hope to provide truly meaningful improvements in and contributions to the fields of agriculture, science, medicine and human health.

While dumpsters of potting soil continue to roll off to the landfill, complex health and human science and the cultivators truly engaged in science will continue to provide meaningful data regarding plant compounds and what factors influence the best outcome for the desired end product.

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The same crop pictured above, now two weeks into flowering, using cover crops

I am willing to bet that what is best will not be coming from the business models employing antiquated, wasteful and destructive cultivation strategies, and that in due time these models will fade into distant memories.

This is the first in a series of articles, in which we will explore topics related to the pursuit of high yield, phytonutrient-dense “high brix” cannabis production.

The next article will provide a historical and geologic context to the cannabis plant, as viewed from the scope of soil biology and the progression of ecosystems and soil types, and how maximized genetic expression, through maximized soil and plant health influence the production of high quality cannabis.

Reasons for Hemp Production: The Need for Sustainable Paper Production

By Tyler Dautrich
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Currently in the United States, there are 27 states that have removed barriers to the production of industrial hemp. Not all of those states have actual licenses in place that would allow farmers to do that. In Pennsylvania, a bill to legalize industrial hemp (SB 50), sits in the house awaiting a final vote.

For those less familiar with the hemp plant, it has been labeled a miracle crop that can produce such products as paper, plastic, fuel, food, clothes and rope to name a few. Almost all of these products can be produced by hemp in a more sustainable and environmental friendly way than they are currently being produced. For this column, I will focus on paper.

Currently the world consumes around 300 million tons of paper each year and 30% of that is consumed in the US alone. A majority of this paper is created via paper mills that cut down trees, applying different chemicals to create a paper pulp.

We have cut down an estimated 4 billion trees around the world to supply the paper industry on every continent. As we continue, just remember that one tree, creates enough oxygen for three people to breathe.

Each year millions of pounds of highly toxic chemicals such as toluene, methanol, chlorine, dioxide, hydrochloric acid and formaldehyde are released into the air and water from papermaking plants around the world, making the industry the 3rd largest industrial polluter of air, water and soil. After the paper is made, sold, and used it ends up in landfills where it decomposes, and releases methane gas, a gas that’s 25 times more toxic than carbon dioxide. The paper industry is also one of the world’s largest consumers of water. It takes 324 liters of water to make 1 kilogram of paper.

An extreme cost to the world for something as simple as a piece of paper. Hemp is a much better solution. While trees take an average of 25 to 30 years to be ready for paper products, hemp regenerates in months. Hemp paper can be recycled up to seven times, while regular paper is recyclable three times. Most importantly, hemp paper does not need to be bleached with chlorine, and is naturally acid-free. A much cleaner and more environmentally sustainable solution.

It is hard to ignore such wasteful processes, particularly when there is a much more sustainable and sensible method that yields the same results. As states begin to allow the production of industrial hemp back into the economy, it creates the opportunity for us to reverse the damage that we have done to this planet.

Imagine, walking into your office one day and seeing all of your documents printed on hemp paper. What do you think? Should we go back to using hemp paper?

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Biros' Blog

Sustainability of Cultivation in 2016, Part I

By Aaron G. Biros
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A few weeks ago, it was that time of the year when people set new year’s resolutions hoping to accomplish a set of goals or somehow better themselves. More often than not, those expectations never get met and those resolutions remain unfulfilled, lofty ambitions.

The cultivation of cannabis is a production process that is notoriously inefficient and energy-intensive. Indoor growing requires a very large carbon footprint. In 2015, we saw the country’s cannabis market grow to roughly $2.7 billion. Looking forward to 2016, we can expect more growth with multiple states voting on recreational sales including California and Nevada, leading to more growers and a higher volume of cannabis production across the nation.

I am suggesting a resolution for cultivators to adopt: Grow your cannabis more sustainably. This might seem unattainable, but the key to a good resolution is a force of habit, setting small goals to improve your production process and make your operation more efficient, ultimately saving you money and reducing your carbon footprint. This series will delve into some of the tools cultivators can use to grow cannabis more sustainably.

Environmental, social and economic sustainability are the three pillars of sustainability to keep in mind. Many describe it in terms of people, planet and profit in reference to the Triple Bottom Line of 21st Century Business. Essentially, cultivators should adjust their standard operating procedures and business model to include their responsibility to be environmentally, socially and economically sustainable.

The challenge of growing cannabis efficiently is understandably daunting. A research study published in the journal, Energy Policy, suggests, “One average kilogram of final product [dried flower marijuana] is associated with 4600 kg of carbon dioxide emissions to the atmosphere.” That translates to an enormous carbon footprint, the equivalent of roughly three million cars.

The use of pesticides is also a tangible social and environmental issue of sustainability because of the potentially harmful effects on the cultivation environment and the consumer. Just last week, Denver recalled almost 100,000 edibles due to concerns of dangerous pesticide residue. Growing pesticide-free marijuana is more sustainable across the board for obvious reasons; it is safe for the consumer, less harmful to the environment and more marketable as a clean and safe product.

There are a lot of tools in the cultivator’s arsenal they can use to work toward a more sustainable operation. Some of these include more energy efficient technology, like LED lighting and efficient HVAC systems. Some tools require more effort to implement like moving toward greenhouse growing, using post-consumer products, support fields, composting and others.

In this series, we will hear from growers offering advice on some of the steps you can take to grow your cannabis with sustainability at top of mind. Alex Cooley, vice president of Solstice, a cultivation and processing business in Washington, will share some insights on the sustainable technologies you can implement to improve efficiency in your grow operation. Stay tuned for Part II of Sustainability of Cultivation in 2016.