Argus Controls Seeding Knowledge video discusses irrigation techniques and the advantages of automating this process. In the video Jeff Neff, Senior Applications Technician at Argus Controls,discusses considerations that can be important when deciding which system to choose. He also covers advantages of automating this process. Other topics include key considerations for implementing automated irrigation by using irrigation solutions for controls systems for horticulture, including greenhouse control systems and indoor control systems.
Irrigation is a necessary process for plant growth. While it can be done manually, automating this process could bring several benefits to growers. As with all types of automation, there are options to choose from, especially while using controlled environmental systems.
Computerized Control System for Horticulture
A fully computerized control system for horticulture incorporates all features of the simpler systems. It also adds support for a much wider range of input sensors, crop water use models. And, most importantly, efficient irrigation system capacity management. Another approach, before considering a fully computerized controls system, consists of relying on sensors alone. This may not be the best method as they can, on occasion, fail. However, if they are combined with a modeling system, the result is optimal.
Another reason to use an automated system is the ability to include fertigation automation, which a simple solution normally cannot offer. One of the benefits of using an automated system is that it saves on labor costs by eliminating the need for employees to constantly monitor and water plants.
In addition to labor costs, hand watering could also affect the quality of the product. Using an automated system improves how production is controlled.
Using an automated system improves how production is controlled. On the other hand, there are certain applications where automated irrigation is not beneficial, such as in conservatories where there is a variety of plants, each with their own needs.
Factors To Consider
Automating irrigation in a horticultural facility is not an easy task. There are a number of factors to consider when planning and designing your irrigation or fertigation solution. Automating irrigation in a horticultural facility is not an easy task. There are a number of factors to consider when planning and designing your irrigation or fertigation solution.
Argus Controls has developed its own nutrient injection system that can provide anything from a single-tank formulation to many separate fertilizer recipes and feed strengths on the same irrigation system. This is all handled seamlessly by the Argus fertigation management software. Continuous improvement and development of solutions for the horticultural industry are a key and the future of irrigation controls promises more intricate, smarter systems with more sensitive sensors. This nutrient system has proven to be quite successful in diverse horticultural facilities, including when using Cannabis control systems.
For more Argus Indoor Ag-Con exhibitor news, check this site again soon or visit www.arguscontrols.com
We know light is important for photosynthesis. It is also key for photomorphogenesis (the development of form and structure in plants which is affected by light). Once the seed cracks, he says, you need to focus on proper light intensity and light duration. You cannot ignore one or the other. Otherwise you will end up with a number of issues. These can range from elongation to yellowing leaves suffering from lack of chlorophyll development.
#2. WATERING
Frequency and duration are key, says Rapaka, whether you are running a multi-million-dollar facility controlled with a Privasystem or a smaller operation using a Rainbirdcontrol system. Since most of us are growing crops like leafy greens and tomato seedlings rather than rice, you only need to water once a day or every other day. You do not have to bombard or flood your plants multiple times a day. The plant quality suffers because the roots can get excess water, which is not good for seedling growth.
#3. NUTRIENTS
To be clear, Rapaka is separating watering from nutrients. He disagrees with old hydroponics textbooks that suggest nutrients are not required until day 3 or 4. When growing crops in controlled environments where, for example, you’re providing light and CO2, if you do not have the right nutrients, you’re headed for trouble. You do not have to put the plants on a restricted diet he says, using human gluten free diets as an example. But, as soon as the seed cracks, he adds, it needs to see nutrients. Regardless of the media you’re using, make sure you are treating with nutrients starting with the very first watering.
#4. PROPAGATION
Sometimes people think if they’re planting really high density, they can go with a smaller footprint or smaller plug size to save a few cents. Rapaka explains that you will lose dollars in the long run here because once leaves start emerging, there should be no shading effect. If there is, propagation quality suffers.
#5. TIMING
Turns out, timing is, indeed, everything. You have to do the right things at the right time, Rapaka explains. It’s wonderful to grow beautiful, quality seedlings, but it’s critical to transplant them at the right time. If plants get overcrowded or rootbound, you have a transplant delay. Whatever quality you are achieving at the young plant stage will not be transferred once you transplant.
During his presentation, Rapaka also shared updates about Fortify, Smithers-Oasis’ new liquid nutrient supplement, designed to optimize the growth performance and increase harvest weights while reducing production time by up to 20%.
In short, said Rapaka, hydroponic production is sexy, propagation is not … and it is often neglected. Everything starts with propagation. You’ve got to start strong to end strong, he adds.
The entire webinar, as well as many others in our new Indoor Ag-Conversations series, are available on demand. Simply visit our Indoor Ag-Conversations page to access the recording.
Recently, Lou Driever, grower for The Abilities Connection (TAC), a 501(c)3 that provides vocational rehabilitation for adults with developmental disabilities, reached out to us regarding the labor market for Controlled Environment Agriculture (CEA). He wanted to share what his organization and others are doing to help provide local greenhouse / nursery employers with trained, experienced workers ready to be employed in an integrated setting.
“CEA involves a lot of repetitive activity where clearly defined observations are crucial to efficiently nourish, harvest and pack produce,” said Driever. “Regretfully, it’s not a great pathway to riches for average hands-on workers. It’s tough for employers to find enthusiastic workers that relish the scope of work who will show up for work faithfully while drawing minimum wage. There is an underutilized labor market that can meet these needs.”
Driever went on to detail how TAC has operated a 3,000 square foot greenhouse and 1,000 square foot grow room raising leafy greens for the past 10 years.
“By teaching our individuals how to plant, transplant, harvest and pack produce (following strict QC / sanitary guidelines) we can provide local greenhouse / nursery employers with trained, experienced workers ready to be employed in an integrated setting. We aren’t alone,” he added. “We are a member of the Growing Opportunities Partnership – a group of 10 different organizations sharing the same approach and methodology. Even WE aren’t alone – there are probably at least 20 other groups across the country with the same mission. That doesn’t include organizations providing vocational rehabilitation using greenhouse settings to veterans with PTSD, those previously incarcerated or in other socially disadvantaged groups. Each of these can be a resource for employers – if they are aware of them.”
Driever shared information on the 10 organizations comprising the Growing Opportunities Partnership below and has offered to field any questions you might have, as he can connect you with an organization best suited to your geography He can be reached at 937-525-7500.
Launched in 2018, the indoor farm has approximately 6,000 square feet of space and capacity for 26,000 plants. The farm raises lettuce, kale, basil microgreens, amaranth, green and purple shiso, wasabi, cilantro and mint. Twelve full and part-time employees work at the indoor farm. They monitor the pumps, which dispense nutrients as they are needed. They transfer plants from germination to seedling stage and later to the area where plants grow to their desired size and are harvested. We have a great opportunity to explore agricultural sustainability and we’ve got a great opportunity to create jobs for people with disabilities. Arnold Farms uses no pesticides, and the founder Craig Varterian likes to call the facilities plants ‘purer than organic’. What’s Varterian’s dream for the future of Arnold Farms? He’d like to employ this kind of farming around the country, especially in ‘food deserts’ where food isn’t easily accessible. “I’d like to see people with disabilities as leaders around the country in this type of farming,” he adds. More information is available here.
Founded in 1961, DDI is a dynamic, non-profit agency with more than 30 locations throughout Long Island, NY. It provides special education, vocational , day and residential programs, as well as healthcare services for more than 5,000 children and adults with autism and other developmental disabilities. The Horticulture curriculum of DDI offers greenhouse opportunities to more than 300 adults served in Adult Day Services. The greenhouse has been in operation for more than 30 years. Some of the vegetables include peppers, lettuce, tomatoes, squash, kale and various herbs to name a few. The greenhouse offers 1,500 square feet of growing space. This enables the DDI team to grow vegetables indoors during the colder weather. Vegetables grown are either sold at farmers markets or used at various site for cooking classes. More information is available here.
Greens Do Good raises microgreens, basil and butterhead lettuce hydroponically in Hoboken, New Jersey. They donate 100% of their proceeds to REED Next, a nonprofit organization supporting adults with autism. This helps provide continued education, life experience, and work opportunities so that these individuals can achieve greater independence and participate meaningfully in their communities. Greens Do Good also provides these individuals the opportunity to work at our farm. Our focus is on providing local businesses with top-quality, locally grown ingredients year-round. We hand-pick and pack our produce at the height of freshness and deliver them straight to our customer’s door for peak taste and nutrition. In the future, we hope to open more farms with the goal of expanding and continuing to create sustainable funding for REED Next. More information about our work is available here
Lettuce Dream is a social enterprise engaged in hydroponic farming that exists to provide meaningful employment and job training programs for persons with cognitive or developmental disabilities so that they may enjoy the benefits of living, working and fully participating in our community. Lettuce Dream was founded in 2016 and operates a 6700 square foot hydroponic greenhouse. Lettuce Dream helps to provide workplace skill training for young adults with intellectual disabilities. The people with disabilities in Lettuce Dream’s program take part in an internship alongside volunteers from the community, staff and their college peers from Northwest Missouri State University growing 500-700 lbs of leafy greens and living basil per week. The interns in the program help with all aspects of Lettuce Dream’s business operations including- seeding, transplant, packaging, food safety recordkeeping, data entry, invoicing and customer service. After obtaining the necessary pre-vocational skills and developing their resumes through the internship program, Lettuce Dream helps the interns transition to community employment. Lettuce Dream helps the individuals in the program secure jobs and provides further on the job support through job coaching. Since their founding, Lettuce Dream has helped provide employment supports for 24 people with disabilities and has an 83% placement rate for individuals that have completed the program. More information is available here.
Medina Creative Produce provides vocational training for students from Medina County School Districts and adults with physical and developmental disabilities, many whom are residents of Medina Creative Housing. Workers develop skills such as cultivating, harvesting and marketing locally grown, nutrient rich Butter Bibb and Romaine lettuce. Our hydroponic greenhouse is fully handicapped accessible to accommodate the broad spectrum of individuals with disabilities that we serve. In 2011, a Ribbon Cutting Ceremony was held celebrating the opening of our hydroponic greenhouse, which supplies local restaurants, schools and area businesses with gourmet lettuce. A weekly harvest produces on average six hundred heads of lettuce and proceeds pay the workers’ wages. Our lettuce is used to support our café’s located at local hospitals. More information available here.
Murdoch Developmental Center in Butner, NC is one of three state operated developmental centers, primarily serving 25 counties of the Central Region. Murdoch provides services and support to people with intellectual and developmental disabilities (IDD), complex behavioral challenges and or medical conditions whose clinical treatment needs cannot be supported in the community. Murdoch operates four specialty programs including children and adolescents programs which are available for individuals residing in all regions of the state. Our hydroponic greenhouse is a vital component of our vocational rehabilitation program. More information is available here.
Peacehaven Community Farm is a sustainable farm established in 2007 and located on 89 beautiful acres of organic gardens, rolling pastures, and lush woodlands that connects people with special needs to their community – and connects their community to them! After high school graduation, there are few housing and programming options for people with intellectual and developmental disabilities. Peacehaven seeks to offer these folks in our community the choice to live in a farm setting within a community where people with and without disabilities live and work side by side. We use the term “Core Members” to describe the individuals with disabilities who live and work at Peacehaven. That term reflects their central status in our community. They are at the core of all that we do and are the best teachers of the values of community. Major expansions in our vocational and housing programs are planned for this year. In our hydroponic greenhouse we focus on raising lettuce, greens and culinary herbs. Partnerships with other organizations in our community and the Growing Opportunities collation represent a keystone practice for Peacehaven. More information is available in this video.
Currently more than 85% of individuals with developmental disabilities are unemployed due to lack of transitional support, job-site training, and employment opportunities geared for success. The Trellis Center aims to fill this gap for young adults with developmental disabilities who are approaching this transition time or adults who have graduated from high school but still need a structured environment designed to match programming to individual capabilities. With a focus on agriculture, the Trellis Center provides vocational skill development, stimulating activities, and a social community of peers. More information is available here
Building on the success of the indoor hydroponic operation, TAC Industries Inc. built a 3,000 square foot hydroponic greenhouse in 2010. Twelve adults with developmental disabilities regularly work there to raise lettuce, kale, cilantro and orache. The produce is served at our sister restaurant “Fresh Abilities” and is also available at the local farmer’s market. Our customers have also included both public and private local schools, restaurants and the local culinary institute. We aim to donate 40# of produce each week to 2nd Harvest Food Bank (supporting over 60 pantries in 3 counties). More information is available here
Through the use of innovative urban farming models, we provide supported employment for adults with special needs and autism. We grow greens and micro greens for local restaurants, colleges, and individuals within the community. All of our produce is non GMO and grown without the use of pesticides, herbicides, or fungicides. More information is available here
Kate Spirgen, editor of Garden Center, Greenhouse Management & Produce Grower magazines penned a terrific recap. In it, she outlined five key takeaways from the panel touching on produce trends and business opportunities in the Covid crisis:
1. Berries are big on the horizon.
Panelists agreed that berries will be among the next hot items in CEA since growers can provide tastier options with longer shelf lives than conventional farms. “How variable is a strawberry’s taste when it’s conventional?” DiNovo asked. “You can have one that tastes fantastic and you can have one that tastes like dirt. You can have the same flavorful berry without Mother Nature wreaking havoc on it.”
Highly perishable items with complex supply chains are ripe for disruption, panelists said.
“What we’re interested in is beyond the shelf life, we want home life for the customers,” Verlage said. “We don’t want them to waste produce because it goes bad quickly.”
2. Create value by standing out.
From a marketing standpoint, DiNovo said indoor agriculture operations shouldn’t fight a conventional battle. By creating new names for products and branding them to stand out, growers can change the game.
“Create its own value by calling it something else,” he said. “If you call it by a conventional name, you’re going to compete on a conventional price basis.” The coronavirus has impacted everything from supply chains to shopping habits.
3. COVID-19 has increased consumers’ desire to keep money local.
DiNovo said the economic impact of the coronavirus has led to a greater demand to keep money in the local economy. this is true whether it’s spending inside the community or providing jobs.
“That’s what local means to me more than anything else — it’s local impact,” he said.
4. Labor and supply chain concerns could lead to opportunities.
Lightfoot said he sees an opportunity to promote safety due to a smaller supply chain. He added that the current salad industry has seen issues with safety in the recent past.
“One farm’s contamination could have a bigger impact since more products are coming into contact with each other,” he said, stating that a longer supply chain makes tracking more difficult. “Those structural challenges don’t exist in our model as they do in the incumbent supply chain model.”
Creating new names and brands for products can help your CEA operation stand out in the marketplace. The year-round nature of indoor agriculture could also give CEA operations a leg up on labor.
Farm labor shortages, which he said have worsened due to the current administration’s policies on labor and immigration, have only been made more difficult by COVID-19. Housing and transportation have left farm employees more vulnerable to the disease.
“When this is over, borders will probably be less open, not more, so this issue will probably become worse,” he said.
“That’s what local means to me more than anything else — it’s local impact,” said Alex DiNovo, president and COO of DNO Produce. CEA operations are better equipped to control entry to facilities. And, year-round labor provides more stability in the workforce.
5. Retailers are looking for the right size solution for their stores.
Verlage said Walmart is looking for ways to mix big and smaller growers since different growers will bring solutions better suited to different communities.
“We are trying to figure out what is the right size project for the demand we face in different stores,” he said. “It has to be affordable, good nutritious food so that we can help everyone enjoy healthy food.”
The speed with which the coronovirus outbreaks in Asia, Europe and North America metastasized into a full-blown global pandemic — catching many world governments by surprise and with little preparation — underscores just how our world today is highly interconnected and how, in order to contain and stem the surging pandemic, temporary disconnection from the physically-networked world by cities, regions and even entire nations has become an urgent imperative.
With confirmed coronavirus cases globally now exceeding 370,000 and the number of deaths surpassing 16,000, many world cities have become throbbing epicenters of the surging pandemic.
Accordingly, various countries, states and cities have enforced lockdown or stay-at-home orders with drastic measures, including banning public gatherings, restricting restaurants to take-out and delivery only, and closing schools, bars, theaters, casinos and indoor shopping malls, among others.
Such orders, or their looming possibilities, have consequently intensified the panic-buying urges of consumers for food and household essentials, particularly in North America and Western Europe, giving occasions for daily photos of empty grocery-store shelves splashed ubiquitously from across news networks to social media platforms.
The availability of food in North America and Western Europe during the ongoing coronavirus pandemic, however, remains generally secure, at least in the near term of the pandemic.
Food Sourcing
New York City, for instance, normally has food supply amounting to approximately 8.6 million tonnes (19 billion pounds) annually as purveyed by a network of regional and national food distributors, which then is sold at about 42,000 outlets across the city’s five boroughs, according to a 2016 study sponsored by the city.
Over half of the outlets are made up of approximately 24,000 restaurants, bars and cafes through which consumers access almost 40 percent of the city’s food by volume annually. The rest of the outlets are chain supermarkets, bodegas and online grocery stores.
The study reported that the city’s annual food supply feeds over 8.6 million city residents, over 60 million tourists, plus daily commuters in the hundreds of thousands from the tri-state area of New York, New Jersey and Connecticut.
With millions of tourists and commuters now staying away from the city, however, and with the city’s hotels at just 49 percent occupancy for the week ending March 14, an excess of food supply is readily available for diversion into the city’s grocery stores and other retailers to meet the surge in demand by local residents.
In the case of Germany, the country imports food that accounts for nearly 8 percent of its US$1.3 Trillion imported goods in 2018. Germany procures from abroad about 3 million tonnes of fresh vegetables annually — with cucumbers and tomatoes accounting for 40 percent of the import volume — at a value of around 3.5 billion Euros, mainly from the Netherlands and Spain. Indeed, approximately 30 percent of the 2.6 million tonnes of exported Dutch-grown fresh vegetables goes to Germany.
Meanwhile, approximately 80 percent of the United Kingdom’s food and food ingredients are imported. The U.K. imports approximately 2.4 million tonnes of fresh vegetables each year from Spain (33 percent), the Netherlands (28 percent), France (10 percent) and from various parts the world (29 percent).
Access to Food
Although the sources and sourcing of food in North America and Western Europe are currently generally secure, what might soon become a prodigious concern is that their workers in the production, distribution and retail segments of the food supply chain may eventually succumb to coronavirus infection.
In such event, coupled with the potential for lockdown bureaucracies to slow down the flow of cargo between countries and between cities, severe delays in delivery — or real delivery shortages — could well become an actual possibility.
Local Vertical Farms
The coronavirus pandemic lockdowns have laid bare, if fortuitously, the crucial importance of partial local food production in or around world cities in the context of urban resilience.
The following salient features of vertical farms have become especially significant toward buttressing a city’s resilience in the event of a pandemic lockdown:
(1) Local — Production of safe and fresh produce can take place within the lockdown zone, obviating the hurdles and perils of going in and out of the red zone;
(2) Automation-Amenability — Impact of severe labor shortage which can be expected as the pandemic surges as well as direct physical contact between workers and fresh produce can be significantly minimized or eliminated;
(3) Controlled-Environment— Infection risks to both workers and crops are significantly reduced through clean and controlled operations;
(4) Modular Option — Crops may be grown in modular production units, such as shipping containers, which may be conveniently transported to neighborhoods located either farther away or in areas of stricter isolation; and,
(5) Reliability — Dependability and consistency of high-yield and high-quality harvests throughout the year is virtually guaranteed independently of season and external climate conditions.
Fortunately for New York City, even as it sources most of its fresh vegetables from California and Arizona, the New York greater area now serves as host to the highest concentration in the United States of commercial urban vertical farms — including Aerofarms,Bowery Farming,Bright Farms,Farm.One, Square Roots and Gotham Greens, among others — that operate as controlled-environment farms year-round and independently of the variable effects of climate and geography. While conventional outdoor farming can produce three vegetable harvests per year, some of these vertical farms can achieve up to 30 harvests annually.
New York City and other world cities could certainly use more vertical farms.
Indeed, the urban planning and design of every world city should incorporate vertical farms, in and/or around it, not only for promoting food security — but for fostering disaster resilience as well.
During a pandemic, when a temporary period of social distancing between cities and nations becomes critically necessary, vertical farms can serve as helping outposts of resilience for cities and regions on lockdown as they brave the onslaught of the pandemic until it runs its course and duly dissipates — at which time the enfeebled ties of cooperation between cities, states and nations across the globe can once again be mended and made even stronger than before.
Thus, not only locally, but in fact also globally, vertical farms can serve as helping vanguards of protection for all of our communities.
Dr. Joel L. Cuellois Vice Chair of the Association for Vertical Farming (AVF)and Professor of Biosystems Engineering at The University of Arizona.In addition to conducting research and designs on vertical farming and cell-based bioreactors, he also teaches “Integrated Engineered Solutions in the Food-Water-Energy Nexus” and “Globalization, Sustainability & Innovation.” Email cuelloj@arizona.edu.