Cannabis News
Plant sensors and dynamic lighting open new doors for growers
At the third meeting of the DigiKas (digital greenhouse) project at Agrotopia in Brussels, Belgium, the first results of how plant sensors and dynamic lighting can support data-driven crop management were recently shared.
Experts from Inagro, Ghent University, KU Leuven and Thomas More presented their findings to a group of garden and horticulture companies. The research clearly shows how plant sensors can help with irrigation management in tomato production, while highlighting the challenges of turning raw sensor data into practical decision-making information that growers can actually use in their day-to-day management.
© Inagro
Challenge sensors in practice
To verify the value of the sensors in actual growing conditions, climate and plant sensors were installed in several tomato compartments of Agrotopia. In these compartments, the growers deliberately worked with optimal and optimal settings. Inagro’s Bert Deruyck explained how stress responses in tomato plants were deliberately triggered by adjusting the timing and composition of irrigation. This hands-on approach produced valuable insights. When the concentration of nutrients in the irrigation water was too low, growth retardation and physiological disturbances such as blossom end rot appeared very quickly. The daily start time of irrigation also has a significant effect on productivity in summer crops. By deliberately pushing the crop out of its comfort zone, the project demonstrates how effectively sensors can detect problems in the crop and how clearly they respond to different stressors.
How sensitive are plant sensors?
Wolf De Smet from the University of Ghent looked at how sensitive different plant sensors are when it comes to detecting optimal growing conditions. His overview made it clear that not all sensors respond in the same way or on the same timescale, which is an important consideration for growers who want to use sensor data in day-to-day crop management.
Highly sensitive sensors that monitor plant electrophysiology, sap flow or stem diameter can provide highly detailed information on an hourly or daily level. These sensors are particularly useful for picking up short-term stress responses. Other sensors, such as those that measure slab weight, plant weight or substrate sheet moisture content, are better suited to show trends over several days. The study demonstrates that the response of a sensor is highly dependent on the type of stressor involved and the time period during which noticeable changes in the crop occur.
© Inagro
From data to decisions
Arne De Temmerman from KU Leuven explained the challenges and opportunities involved in turning collected crop data into truly useful information for growers. It presented a robust framework designed to ensure that data is collected in a consistent, high-quality manner and available for in-depth analysis.
He also explained the techniques used to identify overlapping or duplicated information within sensor signals, in order to more easily understand the relationships between different types of sensors. This approach paves the way for simpler and more practical sensor configurations in commercial greenhouses, focusing on measuring only what really adds value. Over the coming months, the project will link long-term production results with daily signals from sensors, helping growers better understand how short-term crop responses translate into overall performance.
Smart lighting = energy saving
Mario Frans from Thomas More presented research aimed at optimizing crop production under dynamic LED lighting. With major fluctuations in the energy market in recent years and the rapid adoption of all-LED greenhouse systems, growers now have more flexibility to respond to changing electricity prices by dimming and adjusting light levels throughout the day.
Climate chamber tests show that tomato plants can cope well with light fluctuations of 150 µmol per square meter per second for fifteen minutes. Tests also indicate that a realistic lower limit for additional illumination is around 75 µmol per square meter per second. These initial findings will soon be tested on a larger scale in the Agrotopia research greenhouses, where their impact on practical growing conditions can be assessed.
© Inagro
Future research
The DigiKas project, with the support of the Innovation and Entrepreneurship Agency, aims to help farmers optimize their farming activities through data-based decisions. In the coming months, the results will be further refined and linked to production data, with the aim of practical and effective application in greenhouse horticulture.
Source: Inagro
After fifteen years of successful cooperation, managing director Moritz Böcking and the shareholders of Klasmann-Deilmann GmbH have mutually agreed to part ways. As of May 1, 2026, Moritz Böcking will hand over the position of managing director to Jan Astrup, who served as the company’s CEO in 2021/2022. Jan Astrup and Damian Ikemann will form the Board of Directors of the Klasmann-Deilmann Group from now on.
© Klasmann-Deilmann Benelux
Klasmann-Deilmann thanks Moritz Böcking for his cooperation and the progress achieved in the transformation of the Klasmann-Deilmann Group. Moritz Böcking expanded Klasmann-Deilmann beyond the growing media business into new areas of commercial horticulture and promoted innovation and digitalization within the company. In addition, its achievements include the expansion of resources derived from renewable raw materials, as well as the acquisition of a subsidiary in Australia and production facilities in France and Canada, which operate in cooperation with external partners. He also significantly advanced Klasmann-Deilmann’s positioning as a global pioneer of sustainable development in the growing media industry, thereby making a decisive contribution to the company’s economic growth.
With Jan Astrup, Klasmann-Deilmann is getting an internationally experienced manager who has proven himself in the company and has extensive experience in raw materials, production, process optimization and technology. With the new CEO, raw materials and technology-driven areas for the substrate industry are now increasingly important at senior management level. Jan Astrup will strengthen the core commercial horticulture business and help develop the company for the future.
For more information:
Klasmann-Deilmann GmbH
(email protected)
www.klasmann-deilmann.com
Cannabis News
Congressional Amendments To Delay Or Speed Up Federal Hemp THC Product Ban Won’t Get Votes
Congressional amendments to both delaying the scheduled federal recriminalization of hemp THC products for another year or to speed up implementation will not be considered on the House floor this week.
Rep. James Comer (R-KY) introduced the delay proposal as an amendment to the Farm Bill, while Rep. Mary Miller (R-IL) introduced an expedited approach. Neither will move forward, however, with Comer withdrawing his measure and the House Rules Committee failing to vote on Miller’s.
Hemp derivatives containing less than 0.3 percent delta-9 THC by weight of the drug were made federally legal under the 2018 Farm Bill signed by President Donald Trump in his first term. But late last year, Trump signed new legislation containing provisions that will redefine hemp so that only products with a total of 0.4 milligrams of THC per container will be legal starting Nov. 12.
Comer’s amendment, sponsored by Reps. Kelly Morrison (D-MN), Ilhan Omar (D-MN) and Morgan Griffith (R-VA), would have delayed the ban until November 2027.
According to Miller’s proposal, however, the ban will begin the day the new Farm Bill takes effect. However, it is unclear based on progress in Congress whether the large-scale farming legislation will actually become law, and the legislation could not pass until after the current recriminalization date.
Comer told the panel at Monday’s meeting that his amendment would “protect American farmers” and “help the hemp industry and the thousands of jobs that use and rely on these products.”
“It is clear that Congress needs more time to pass legislation that protects jobs, eliminates bad actors, standardizes labeling and requires third-party testing,” he said. “My amendment would give Congress another year, until November 2027, to develop this solution.”
It is not clear why he decided to remove it from the annex to the proposal Farm BillAlso known as the Farm, Food, and National Security Act of 2026, or HR 7567.
Griffith, a member of the Rules Committee who sponsored Comer’s amendment, noted that there are “a lot of hemp products from overseas that don’t have third-party testing” on the market, “frankly all kinds of junk.”
He said the real solution is for the Food and Drug Administration (FDA) to regulate the products, citing a separate bill he has introduced on the issue, but argued that “we have to have time to adjust,” which he said would provide the delay amendment.
Meanwhile, Rep. Andy Barr (R-KY) also introduced an amendment to the bill that, according to the sponsor’s summary, “changes the definition of hemp to protect the legal hemp market, creating a regulatory framework that protects children, bans synthetics, and ensures that products on the market are of American origin.”
The congressman later withdrew the proposal for undisclosed reasons.
However, he recently received a letter White House officials commented on pending legislation to create a regulatory framework for hemp.
Last week, Vince Haley, director of the White House Domestic Policy Council, and James Braid, assistant to the president for legislative affairs, sent hemp policy suggestions to Barr, who is helping lead efforts to establish regulations for the plant as an alternative to prohibition.
“We appreciate your work to advance policy,” the executive order Trump signed in December, which included provisions to protect Americans’ access to CBD products, the staff wrote in a letter to Congress.
“We are submitting draft legislation and comments to your account to address the final statutory definition of hemp-derived cannabinoid products to ensure that Americans have access to adequate full-spectrum CBD products while maintaining Congress’ intent to limit the sale of products that pose serious health risks,” White House officials said, according to a social media screencast. “We are open to discussion and further technical assistance.”
The annex to the administration’s proposed legislative text has not been released publicly, and the White House and Barr’s office did not immediately respond to Marihuana Moment’s request for more details.
It’s not clear from the text of the letter whether the White House was proactively sending legislative proposals to the lawmaker or whether they were responding to something sent by his office, though two cannabis industry sources suggested to Marihuana Moment that Barr was sending the language to the administration, and then providing technical feedback.
Trump this week It inspired lawmakers in Congress to take action to change the currently planned hemp banand suggested that this threatens to federally recriminalize full-spectrum CBD products.
“I’m calling on Congress to update the Act so Americans can continue to have access to the full-spectrum CBD products they trust and support, while maintaining Congress’ intent to restrict the sale of products that pose health risks,” the president said in a Truth Social message Thursday, the same day his administration announced it is moving forward to re-regulate marijuana.
“We need to do this RIGHT and FAST, especially for those who have found CBD to help them,” he said. “Also, I’m told it will help our BIG FARMERS that we love and will always be around.”
Rep. Jim Baird (R-IN) had it introduced the hemp ban delay amendment before the House Agriculture Committee when it took up the Farm Bill last month, but the president of that panel determined that the proposal was not in line with the legislation.
The Farm Bill passed by the previous committee includes provisions to help the hemp industry and farmers who grow cannabis for industrial purposes, such as fiber and grain. For example, the legislation would amend statutes related to states and tribes developing regulatory plans for industrial hemp production, including policies on testing, sampling, background checks and record keeping.
Other bipartisan hemp reform bills are pending in Congress.
This month, for example, it was introduced by Senators Rand Paul (R-KY), Amy Klobuchar (D-MN) and Joni Ernst (R-IA). The Hemp Safety Enforcement Act, which would give states the option of federal recriminalization of THC hemp products. it will be established this year.
Ernst withdrew his name, however, as a sponsor of the legislation. His office did not respond to Marihuana Moment’s request for clarification on the move.
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The US Department of Agriculture published this month shows that US farmers grow $3 billion in hemp crops by 2025— 64% increase compared to the previous year.
Meanwhile, this month the Trump administration launched a new initiative Cover up to $500 of hemp-derived products annually for eligible Medicare patients. The program being implemented by the Centers for Medicare and Medicaid Services (CMS) focuses largely on CBD, but also allows a certain amount of THC in products.
Anti-marijuana organizations filed a lawsuit against the Medicare hemp coverage policyand Health and Human Services attorneys. Robert F. Kennedy Jr. and CMS Director Mehmet Oz recently He submitted a letter requesting the filing of the case.
Meanwhile, the White House Management and Budget Office has held a series of meetings a Food and Drug Administration (FDA) CBD product enforcement policy.
The FDA also issued guidance making it clear that it does not intend to interfere Establish a Medicare coverage plan for hemp-derived products.
CMS finalized a rule that will be adopted separately Coverage of certain hemp products, primarily as specialized health-related benefits, through Medicare Advantage the plans
As hemp products become more popular among consumers, some big brands are trying to get in on the action.
The main retailer Target, for example, is expanding its involvement in the hemp-derived THC beverage market. Last year, the company began a pilot program in 10 stores in Minnesota that sell cannabis drinks. That apparently went well, and now the company has secured licenses from Minnesota regulators to sell lower-potency edible hemp products — including THC drinks — in 72 stores in the state.
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North Carolina lawmakers say they’re fueling debate over the state’s marijuana laws — a move by the Trump administration to reclassify it as a less dangerous drug.
Across the country, a set of laws and enforcements regulate marijuana. The drug is illegal under federal law, but dozens of US states have legalized it. And almost all states have legalized medical marijuana prescriptions for certain ailments. North Carolina is among the remaining states to resist any form of legalization. Republican politicians in North Carolina have resisted passing any bills to legalize or decriminalize marijuana, despite public opinion polls showing broad public support for such changes.
Senate President Phil Berger said he expects his chamber to revisit efforts to legalize medical marijuana this week. “We will have a conversation within our caucus if they are interested in whether we do something,” Berger told reporters Tuesday.
The recent actions of Republican President Donald Trump may add a new dimension to these conversations. Trump’s acting attorney general on Thursday signed the drug classification as a less dangerous and less strictly regulated drug than marijuana. Federal law does not legalize marijuana for medical or recreational use.
Read more at WRAL News
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