Meet the people behind the crops: Dirk-Jan Polak

Meet the people behind the crops: Dirk-Jan Polak

At Hazera, we are proud of our dedicated team, which works passionately to provide our growers with the best products. While our products often grab the headlines, it is the Hazera team who are behind our success. Let’s shine the spotlight on Dirk-Jan Polak (57), a Commercial Crop Specialist from Poortugaal, Netherlands, who plays a vital role in our organization.


Dirk-Jan has agriculture running in his veins. He shares with a smile. “My family history is quite interesting. We are a real food family. We are growers, fishermen, butchers, and bakers. In fact, just near our head office in Oosteind, you can find a bakery, the Bakery Polak, a legacy of my family.” For eight years, Dirk-Jan was a game dealer and built the Hollands Wild brand together with Jo Kloet. “We were the odd ones in the meat world.” Dirk-Jan laughed. “Because Jo had been a marketing director at Rijk Zwaan and I had had my vegetable-cutting company.” He joined Hazera two years ago as a Commercial Crop Specialist for radishes, corn salad, and baby carrots. His dedication to his work and crops is shown in the success of various projects. A recent example is the radish mix, where Dirk-Jan’s contributions played an important part and helped the project earn the prestigious title of Best Product of the Year in the Dutch Consumer Election.

What is a common myth about your job or field of expertise?

When asked about a misconception in his field, Dirk-Jan responds: “Most people who are no longer connected to our agriculture and horticulture hardly realize how professional and efficient we have become, but also how dependent we still are on nature and have to deal with it and every day.’’

In your opinion, what is the most important personality trait someone would need to work in your industry?

Dirk-Jan believes effective communication is crucial in his role as a Commercial Crop Specialist. “I act as the bridge between growers and Hazera, facilitating the flow of needs and solutions. It’s not just about delivering products; it’s about understanding the growers’ challenges, market demands, and regulatory landscapes,” he explains. “So, we can provide them a solution for the right varieties, the right calibers at the right time, in the right place.”

Which project are you proud of and why?

Dirk-Jan said immediately with a smile: “The radish mix was a nice project. It was the idea of a grower at Ortolanda to put three different colored radishes (purple, red, and white) in one box. It kind of looks like a rainbow radish box. This radish mix opened a new, so-called “snack radish” market, which is attractive for a new target group of consumers, the younger generation.” Continues Dirk-Jan with excitement. “It even caught the attention of Albert Heijn, a major Dutch supermarket, positioning radishes in a new, health-focused spotlight. It is also good and healthy for the people because, with the radish mix box, they eat three kinds of radish at once.”

What does “Hazera – Growing Together” mean to you?

“I like this slogan, because we as Hazera, as a breeder, are at the beginning of the whole food chain and this position comes with a great responsibility. That is why it is important to grow together with our growers, and our customers by listening to them and creating varieties that are needed for the markets to be able to feed the world sustainably in the future. This slogan also refers to the great team we have at Hazera that works together.”

Can you tell us something about yourself that most people do not know?

“I am an enthusiastic person, who always thinks of solutions. I think there is a solution to all the problems, but it is very important to communicate with your colleagues and customers. For many years I used to work primarily in Dutch and the transition to work mainly in English has been a bit difficult.” Dirk-Jan admits with a candid smile. “But it is getting better, and I try to be the ambassador and communicator for my crops and role.”

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Hazera's new High-tech tomato greenhouse

Cultivating the future: Hazera’s new High-tech tomato greenhouse

Hazera has recently acquired a new high-tech greenhouse next to our headquarters in Made, the Netherlands. According to Yossi Shapiro, Head of R&D, this acquisition marks a significant step in Hazera’s journey to establish a strong position in the high-tech greenhouse tomato industry. He gives insight into the acquisition process, goals in research and development, and what Hazera can offer to the high-tech tomato market.

“Our goal to establish ourselves as one of the leaders in the high-tech tomato market with our mid- to long-term plan, as there is strong competition there”, Yossi says. “This goal was the primary motivation to invest in a state-of-the-art active tomato greenhouse, as you need the best facilities to compete with the best.” Hazera is empowering its tomato portfolio worldwide through the new high-tech tomato project with the strong support of Limagrain’s vegetable seed division. As the largest company in the vegetable seed industry, Limagrain Group has significantly invested in this project.

Hazera's new High-tech tomato greenhouseBackyard transformation
Yossi says multiple options were considered, such as renovating existing facilities or building a greenhouse from scratch. “But the answer was right in our own backyard: to buy an industry-grade, commercial greenhouse operation, that we can readily transform into a research facility with the help of our experts.” André van Zeijl, the previous owner of the greenhouse, has been an independent grower for over 25 years.
He has a lot of experience and will support the transition to a research facility.

With advanced technology and a focus on producing clean seeds through good seed and plant practices (GSPP), Hazera aims to elevate its research capabilities. Another important advantage of acquiring an existing facility, is sustainability. Re-purposing the greenhouse in Made, rather than building a new one, suits Hazera’s strategy of caring for the planet that helps us grow extraordinary seeds. We take our responsibility for the environment very seriously. Hazera has a lot of know-how and experience in breeding high-quality varieties that can be grown with reduced input. It’s great to see that a company like Hazera has such a strong focus on sustainability.

Experts in resistance, yield and taste
When talking about Hazera’s position in the high-tech tomato market, Yossi notes that “We also bring something very valuable to the table: our expertise in developing tomato varieties with strong resistance to diseases, particularly in response to ToBRFV, combined with excellent yield and taste. This can really equip growers to manage their biggest challenges. A great example of this is Pendragon, one of the ToBRFV-resistant varieties that we’ll be growing in the greenhouse. In addition, this greenhouse provides us with the opportunity to further improve yield, fruit quality, and commercial appeal of those varieties, and to implement the innovative techniques and technologies which will increase our efficiency, enhance the R&D outcomes, and accelerate time to market.”

“The Netherlands is the birthplace and center of the global high-tech tomato industry, so it is a natural location for us to launch this program”, Yossi continues. “But the goal of all our efforts is to develop hybrid high-tech tomato varieties to meet the evolving needs of our grower customers, wherever they may be, so they can serve the needs of their customers. When consumers are enjoying tasty and healthfully tomatoes grown from our seeds, we can say that we’ve been successful in our mission.”

A vision for tomorrow
“The heightened level of control and optimization in the high-tech greenhouse environment ensures that we can replicate production conditions under which we want to evaluate the varieties we are developing and advancing. That way, we aim to bring innovation and improvement to high-tech tomato markets around the world.”
“By combining our new active greenhouse research facility in Made, the expertise we have in developing leading tomato varieties, and our experience in customer engagement, we expect to play an important role in the high-tech tomato industry”, Yossi concludes. “There’s an exciting opportunity to grow this part of our business, and it starts with R&D.

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