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Bram’s adventures at home and abroad

“There’s no course for it. It’s quite difficult.” That’s what Bram van den Ende says when you ask him if he finds it difficult to retire. After half a century at Stolze group, where he started at 16 as the first employee and he was able to work himself up to CEO, it is time to step down. “When you’ve attached yourself to it your whole life, it’s quite hard. It’s a process but the company is in good hands.”

Bumblebees and planes
Bram has witnessed quite some new things during his time at Stolze. From the first bumblebees in greenhouses to the first mobile phones, convenient for the emergency service, for which Bram did a lot. At the age of 23, he had to resolve an issue in France. “At that time, it was already quite an experience when you went to the south of the Netherlands. So, to be on a plane for the first time, you can imagine, I was very nervous.

He had rather stayed home but he also knew: if I don’t go now, I’ll never go again, so Bram left for Cannes. The issue was resolved within five minutes, but the next flight didn’t go until a few days later. “So out of the four days I was there, I spent three days on the beach!”

Going abroad was always an experience for me. For example, Bram remembers another trip to Sardinia, where someone wanted to sell a Priva computer. But how do you do that when someone doesn’t speak a word of English, and you can only talk about Gullit and Cruijff with your hands and feet? In the end, the sale was concluded, but Bram had to stay with the man for two days and he had to stay for dinner. “It looked horrible. Squid and raw fish that was eaten with head and tail. I was horrified when I saw it, but you can’t say no.”

Bram has been to Italy many times after that successful sale. In the early ’80s, he went to Italy once every 14 days: he left on Friday nights and came back on Sundays. There’s one project there that he will never forget.

“Back then, Italy was ‘the land of the mafia’, now a lot less. A customer of ours went to Sardinia to set up a very large horticultural project with two partners, including Italians. We went there and as it turned out, the ground was not even. So that had to be leveled, otherwise, you can’t build a greenhouse.”

A financial setback, but they were able to continue with the project. They were already working on the entire electrical installation when they had another setback to deal with, and not a small one: the Italian customer didn’t pay. “So, we went away and only left the equipment behind.”

Unfortunately, the case took a turn for the worse, the Italian customer went bankrupt. “So, I called a friend in Sardinia and I asked him to get everything out of there: computer, fans, you name it.”

That happened, but the Italian defaulter couldn’t appreciate it. The guys from Stolze were now working elsewhere on the island. They unknowingly ended up in some Hollywood movie with that job. The defaulter had informed the police about the “theft” of the equipment. They came to the new project with rifles drawn to arrest the mechanics.

The guys were held until all equipment was returned. In the end, Bram and his team decided to return the equipment because the local police were also on the side of the now-bankrupt customer, one of the partners in that deal was the mayor of a local village. “Very strange games were played. All politics, but what can you do.”

German marks in a handbag
Bram was also active in Germany. Small problem, he does not have a knack for languages. After two years of studying German, he could not count to ten as well as his children, who were about 12 at that time. But this did not stop him: with hands and feet, and some technical skill, you can come a long way.

For example, he saw this when someone from Germany started a project on Tenerife in Spain. “He was going to cultivate mangoes. I had never heard of that, but he had to have a drip hose, EC, and pH, so I sent him an offer, and he liked it.”

Aad Verduijn and Bram van den Ende in Tenerife

The client had to pay half in advance, but that was no problem. “He trusted the whole thing. I said: “And the other half when I’m there.” So, we went there to go ahead with everything. He came to pick us up at the airport, along with his wife. I introduce myself, and he nudges his wife. I thought, what’s he doing? So, he nods at the woman’s purse, she opened the bag and I got 40,000 marks. What am I going to do with 40,000 marks? I put it in my suitcase and I went to check almost every hour to see if it was still there!”

Dog bites man
There was also plenty to do in the Netherlands. “I remember Teun going to a customer with an offer. I knew that customer was not the nicest. Teun came back and was a little upset. “I went to the client and what do you think? He has a huge dog. Look, he bit my legs!'” Fortunately, the customer was not the worst, in return for the dog bite, he agreed to the offer.

“By the way, everyone in the company has been bitten by a dog. I was with a customer once, it was already a little dark, and there was a car in front of his sliding door, so I couldn’t get in. Fortunately, the keys were in the ignition, so I got in the passenger seat to move the car.” Unfortunately for Bram, he wasn’t alone in the car. “I sit down and suddenly I hear growling. I look back and see a row of white teeth, it was like a movie. And I couldn’t get out because that car was still parked against the door.”

Bram also had a dog and thought that starting the car would sound familiar to the dog and might calm him down. “I start the car and that Doberman kept growling. I drove the car forward and kept talking to the dog. I jumped out, and in the end, the dog didn’t bite me. So, I go to the grower.” And this conversation took place:

“How did you get in?”

“Through the sliding door.”

“But there’s a car in front!”

“I moved it.”

“You didn’t move that car.”

‘No? So how did I get in? I moved that car.”

“And the dog was in that car!”

“Yeah, that wimp in the backseat?” I saw him. He’s not of any help!

Always laughing
With Bram there is always something to laugh about, he tells one anecdote after another. For example, he remembers Aad Duijn’s ‘grandma’ bicycle. “That was his company bike. With his tools on the back, he rode his bike all over the company. If you took his bike, he would let you know how he felt about it, so you didn’t do it twice. But at one point I was working with a welder, Piet Leerdam, and Aad was gone. The bike was propped against a pole and Piet was welding.” You can feel it coming: the duo planned to weld the bike to the pole.

Aad came back, and under the watchful eye of Bram and Piet, who were peeking around a corner, he began to pull on the bike. “He was in a hurry, so at one point he walked away. But after 10, 15 meters, he turned around and thought: that can’t be right? Then he saw the welding and we came out. We couldn’t stop laughing and I remember what Aad said: “That’s a really silly prank!”

Bram has also been the victim of pranks, silly or not. “I’m not very good with computers, I had to regularly ask someone to help me out. At some point, they took a picture of my home screen and stuck it to my monitor. So, I sit down… that freaking thing froze again, I think. Booting, unplugging, nothing happened. So, then I pulled the plug, but I still had an image. I didn’t get it. I didn’t even realize it.”

Sharing is caring
After all these adventures, pranks, and jokes, Bram can now enjoy his retirement, although he will continue to follow his horticultural heart, for example, with a Chrysanthemum project on water.

He’ll miss his colleagues from Stolze the most. “You cannot do everything by yourself. I owe a lot to the people at Stolze. You can’t be successful if you can’t share.

So, Bram is going to miss the people the most, but there’s one more thing: the stress “It gives you adrenaline.”

‘Andere Tuinbouwtijden’
This was part 17 in the series ‘Andere Tuinbouwtijden’. A series in which a group of ‘seasoned workers in the field’ look back and forward and in which we look at what their work did for the current horticultural industry. Tips for the series are more than welcome and can be emailed to:

Part 1: Piet Bom – Will your next greenhouse be made of Fiberglass?
Part 2: Henry van der Lans – We slept in the same little hotel…
Part 3: Rob Grootscholten – 42 years of greenhouse construction…
Part 4: Peter Stuyt – As a Dutch American, I like to combine…
Part 5: Leo Alsemgeest – Bit by bit a step back
Part 6: Harry Dullemans – Never say you are not there…
Part 7: Kees de Groot – We must make something different than…
Part 8: Leo Alleblas – The urge for adventure is in our blood
Part 9: Carel Zwinkels – “A grower needs to keep on developing in…
Part 10: Willem van Dorssen – “Willem, watch out for your shiny…
Part 11: Cees and Leo van der Lans – “If you want to do everything…
Part 12: Marten Barel – The development that horticulture has…
Part 13: Hans Zeeman – Grateful our family name still…
Part 14: Johan de Hoog – After a storm, we clean up together
Part 15: Ton van der Kooij – I transformed myself for one night …
Part 16: Cees Overgaauw – Without a guardian angel I still would…

For more information / or to give Bram a call:
+31 (0) 6 2958 5901

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Japanese tomato harvest robot in action in Tomatoworld

A new tomato harvesting robot has recently been driving through the paths of Tomatoworld. It is the latest product of inaho Europe, a subsidiary of the Japanese company inaho.  “The purpose of launching the demonstration at Tomatoworld is to allow more interested people to see the robot in operation,” says Takahito Shimizo, managing director of inaho Europe. “We want to demonstrate the robot and receive more feedback from growers, in order to develop and increase the value of the robot.”

Snack tomato robot
Tomatoworld is a horticultural information and education center in Westland, Netherlands. In the greenhouse, snack tomatoes are grown.

Takahito Shimizo shows how the robot is a fully automatic harvesting device for snack tomatoes. “The AI algorithm identifies the ripe fruits by color and size and then harvests the ripe snack tomatoes.”

inaho has already conducted field trials with growers in Japan and demonstrated a reduction in human working hours of around 16% by setting up a workflow in which robots harvest during the nighttime before humans do.

Meanwhile, inaho also found that there are differences between Japanese and Dutch growers in terms of harvest and post-harvest operations. “For example, the standards for the picking appropriate color of the fruits and the frequency of harvesting are different,” says Takahito.

In order to develop a solution that is more suitable for Dutch growers, inaho is keen to get a better understanding of the Dutch growers’ practices and receive more operational feedback from them. In this context, inaho is also actively seeking a grower partner who would be able to carry out a field trial of the harvesting robot.

Growers welcome
The demonstration in Tomatoworld also contributes to this: growers are invited to come and see and assess the robot. “We are happy to discuss details about the robot, such as its functions and expected future updates. We can also provide simulations to calculate the labor and cost savings, based on the results of the trials in Japan,” Takahito says.

It is not the Japanese company’s first robot. inaho already launched an AI-equipped asparagus harvesting robot (video) in 2019. They are also working on a robot that can phenotype plants. inaho operates according to the Robot-as-a-Service (RaaS) business model – paying per harvested product.



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Symphony of Salad Studies

Ten years ago, the first container farms began to appear in the United States, where enterprising startups tried to grow salads and other green crops. They began to install containers at the places of harvest consumption so as not to waste time, effort and money on the delivery of goods. The first to go were the unused containers of the Boston port, which, instead of being recycled for scrap, were given a second life in the form of high-tech hydroponic growing facilities. As a matter of fact, the containers themselves, in the aspect of this innovation, fulfilled only the function of a rather strong and usable shell of a living organism of a farm. It is based on autonomous equipment, the work of which is somewhat reminiscent of the device of musical instruments – with their help, the energy of thought is transformed into a symphony. And in this case, we are talking about agricultural masterpieces, where mechanical actions programmed by a person, aimed at growing vegetables, are performed by robotic equipment of the farm. It brings together the best developments in industrial programming, energy conservation, and agricultural innovations. In other words, a new scientific direction is being obtained, which can be conditionally called “salad studies”. After all, it is salads that have become one of the most successful and therefore popular crops on container farms.
It is interesting that similar projects began to appear in Ukraine as well. One of the first was the Smart Oasis Farm startup, which became famous for the invention of the “oasis” with fresh water, in other words, installations that are able to generate drinking water from the air. This development has even been tested in the United Arab Emirates – in Dubai. Now Smart Oasis Farm is setting up the production of container farms. Founder of Smart Oasis Farm Alex Prikhodko and development director Anatoly Kalantaryan shared information on how entrepreneurs manage to do this.

– How did you select equipment for the farm, where did you find information about what it should be?
– For about six months we have deeply analyzed similar projects in America, Australia, the Middle East – what technologies and equipment they use, methods and materials. After that, an understanding came of how and what to apply. By the way, there are not many container farms in Europe so far. After analyzing competitors, an analysis was made of potential partners who are already engaged in such solutions. Negotiations led us to the fact that we decided to build our greenhouse ourselves. For the next six months, we selected and ordered components for creating a prototype of a container greenhouse, made molds and hardware software, placed orders and agreed on parameters. It turned out that the entire internal layout of the greenhouse – nodes and elements, modules and automation – became our author’s development. The lion’s share of the equipment was manufactured in Ukraine, what they could not do from us was purchased in China, as well as the container for the greenhouse itself.

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– Has the greenhouse been commissioned yet?
– Yes. Geographically, it is located in the Cherkasy region. -Plus, now it is possible to place the second and even the third similar box on the first container in order to clearly demonstrate the scaling of the project.
Now we are working on improving the greenhouse hardware. From the fan to each pump in the system, the controls are electronically controlled. Our key task is to drastically reduce water consumption, excluding its losses during evaporation. After all, plant nutrition is carried out by the aeroponic method.

– What was the most difficult thing?
– It was difficult to do this at all stages, there is no one to turn to for advice. But the work carried away. The prospect of the business, the ability to grow a completely ecologically safe product, regardless of the external environment, climatic conditions, as close as possible to the place of its consumption, also inspires.

– What challenges did you face when choosing crops and planting material?
– The cultures that we decided to master in the first place are basil, lettuce, baby bodice. It took a long time to select the optimal variant of the substrate, capable of ideally working with aeroponics technology. We tried both peat and coconut. They also experimented with organic substrates, linen and hemp rugs. Basalt wool came up best of all, since the material does not leave dirt behind, has a high level of absorption, retains moisture for a long time, while being inert to the environment and neutral in structure, that is, it does without oxidation or alkalization.
92693515 156466925837044 3711920477636132864 nIt was easier to choose planting material – we use Rijk Zwaan seeds. We spent some time experimenting looking for an answer to the question of the economic feasibility of using more expensive pelleted seeds and found that these costs are unnecessary in our case. At least, we did not observe an increase in yield when using pelleted seeds. We use GHE products as a fertilizer supplier. At the moment, we are preparing to grow berries and low-growing vegetables. In order to achieve optimal system settings that will speed up the growing process without losing the organoleptic characteristics of the product, sometimes we even deliberately expose the plants to additional risks, for example, we increase the temperature in order to identify critical indicators based on the results. To calculate the economic component, you need to grow the crop, weigh it, and understand what operating costs accompanied the process.

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– What are the yields, do you have experience in their implementation?
– The average weight of lettuce or basil, which we get from one seat, is from 125 to 150 grams. By using a different type of containers, more spacious and oversized, we plan to increase the number of seats from 1440 to 1900 by increasing the number of tiers from four to five. Consumption of seeds per one seat is 3 pieces. The payback of such a greenhouse on salad and spicy crops at their current market price is 3-4 years.
So far we have not been selling the lettuce that we have grown. We were happy to entertain everyone – friends, guests, employees and all those who help us in launching production.

– How are you going to develop the project?
-“We are preparing to launch mass production of such container farms, which can be combined into large greenhouse complexes, where different crops can be grown at the same time. We are going to sell such boxes and technology.

– And what about the financing?
– The project has a strategic investor who has allocated the current round of financing. At the moment, we are also discussing with him further investments to create an industrial complex capable of providing the production of dozens of container-farms per month.

– What can you say about potential buyers of such farms?
– These are educational institutions that are obliged to provide children with fresh produce, and farmers who are already engaged in this business, but cannot get the predicted harvest, as well as the HoReCa segment …
In fact, we have created an electronic technologist, where all agro-technological maps are already included in the software. It is not necessary to be an agronomist to successfully grow crops in such a container.

– Where do you see great prospects in increasing the number of container farms or converting urban facilities into ecosystems for industrial plant cultivation?
– Both options make sense – both have their advantages and disadvantages. The advantages of re-equipment of existing urban facilities include the availability of communications (water and electricity), partially prepared infrastructure. However, to ensure maximum energy efficiency and due to the specific climatic conditions required for growing plants, the room still needs to be additionally waterproofed and thermally insulated. And also integrate a climate control system into it, which will make it possible to grow crops that need similar climatic requirements.
The advantages of container farms include the absence of the need for capital or repair work, and the readiness to quickly launch such complexes. It is important to note that each greenhouse complex is a closed climate cycle that allows you to grow different crops with a variety of climatic requirements.

– Why, in your opinion, urban farming in Ukraine is not developing very rapidly, when to expect a boom?
– Due to the abundance of natural resource opportunities that Ukraine has. But over time, this segment will begin to develop more rapidly in our country due to economic, logistic and technological factors. Also, this direction carries with it the greening of both production and consumption, which, in turn, also develops and becomes more in demand by people, companies and the state.

photo 2021 04 09 17 05 17



based on materials from the magazine Vegetables and Fruits

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Israel – from artificial roots to drip heating

Growing food at high temperatures with little water is very common for Israeli growers.

“That’s why growers worldwide can use their solutions to adapt to warmer weather conditions,” David Silverman, advisor to Israel’s Ministry of Agriculture, recently told a webinar last week where Israeli companies showcased their greenhouse technologies. 

“Despite its small size, Israel has a dense amount of agricultural and horticultural research institutions. With our diverse topography and climatic zones, we manage to maintain intensive cultivation in the desert.”

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Israel - from artificial roots to drip heating 96

According to David, the solution should be threefold: genetics, developing resistant varieties, migration, choosing the right zone to grow certain crops, and implementing technology. Gaining knowledge about these Israeli technologies and cultivation solutions was the aim of the webinar Greenhouse Technologies organized by the Foreign Trade Admission of Israel in the Netherlands. During the webinar, Israeli companies presented their solutions for growing in harsh climates.

Ziv Shaked from DryGair presented their solution for reducing humidity in greenhouses. Because pathogens and fungi thrive in moist air, it is important to lower the humidity. In addition, humidity and energy go hand in hand.

The DryGair solution absorbs water from the air, which is condensed inside the machine. This ensures air circulation in the greenhouse, where the air is also cooled and a homogeneous climate is created.

In the Netherlands, DryGair works together with Royal Brinkman to provide growers with this solution. The water collected in the machine can later be used for irrigation.

Itamar Ziseling of MetoMotion discussed global labor shortages in the horticultural sector. To counter this shortage, the company has developed a system to reduce labor costs. The Greenhouse Robotic Worker (GRoW) is a self-contained device with two robotic arms, a 3D vision system and a camera system with which the crops can be monitored. The robotic arms collect the harvested products, place them on a treadmill, after which they are packed and transported.

Thanks to the camera, GRoW can also harvest at night. “The financial value of GRoW is enormous, and the payback time is less than 2 years, while saving 80% of labor, allowing growers to focus on their product rather than the reliance on labor,” concluded Itamar.

Tal Maor of Viridix noted that it is difficult to figure out what crops actually need. Therefore, they have developed a tool for the analysis of collected data using an artificial root.

“With the right tools, growers can control irrigation in a simple and effective way,” Tal said. The artificial root based on solar energy can remain in the ground for years and can be used both in the open ground and in greenhouses. “All relevant data can be found on one platform, for every crop type and irrigation system. The results are difficult for every grower to interpret. That is why we can link the system to an irrigation control system, creating an autonomous irrigation solution without the hardware in the greenhouse needs to be replaced.”

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Israel is known for their drip irrigation systems. However, Erez Gold from Thermo Siv  presented an innovative green heating solution, which can also be called the heating equivalent of the drip irrigation. Their product is a coated yarn that can be heated and provides accurate heating close to the crop. The material can be used for heating the roots or for vertical placement next to the plants. It is interesting to see that this material is also used in the automotive sector. There are many advantages to cooperation between sectors.

Lior Hessels of GrowPonics discussed an entirely different problem: although substrate growers prefer to use organic fertilizers, this is often not enough for their crops, according to the producer who makes smart use of bacteria.

The company has started imitating the production process of chemical fertilizers, but in a natural way. Bacteria are used to absorb nitrogen from the air and convert it into ammonia, since plants cannot absorb the nitrogen from the air.

The Agam Ventilation Latent Heat Converter

Hagai Palevsky of Agam Greenhouse Energy Systems highlighted the dangers of excess humidity in greenhouses, which causes the spread of mold, mildew and other pathogens. The Ventilated Latent Heat Converter absorbs the air via a salt solution and then filters it. In this way the greenhouse can be closed and energy is saved. Also, the temperature is regulated if necessary. This can both replace and supplement the existing air conditioning systems in the greenhouse.

Finally, Eytan Heller of Arugga AI Farming spoke about labor shortages as a major problem in horticulture. That is why Arugga has developed an autonomous soil robot for the treatment and monitoring of every plant in the greenhouse. They focused first on tomatoes and in particular on pollination. The robot is based on AI and imitates pollination. Extensions of the robot allow for non-contact pruning, detecting diseases and predicting yield. Because the business model is based on leasing, the robot is more affordable for growers.


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