25% higher crop yield with ValkPoly+!

+30% PAR light → higher crop production
86% vs. 88% humidity → healthier crops
Short payback period → average of 2 years and 10 months

Discover ValkPoly+

5 reasons why ValkPoly+ is a must-have in your poly greenhouse!

Do you want to get more return from your crops? Then the ValkPoly+ screen system is the perfect solution for you. According to scientific research by Wageningen University & Research*, movable screens offer several advantages over traditional chalk solutions.

+25% crop yield due to +30% photosynthetically active radiation (PAR), allowing crops to make optimal use of growth light
Lower energy costs thanks to heat retention with an average of +2°C inside the greenhouse and +4°C at night, crucial for crop development in the early growing season
Short payback period of just 2 years and 10 months on average thanks to higher crop yields and energy savings
Lower relative humidity (86% vs. 88%) helps prevent fungal diseases
Full flexibility and control for optimal management on the greenhouse climate

Want to see the advantages of movable screens in your poly greenhouse at a glance? Fill in the form below to receive the infographic instantly in your email, or contact us directly!

*The results are based on a poly greenhouse research in Spain.

Challenges with chalking methods

This video shows the issues growers face without a screen system in their poly greenhouse.

Watch video

Why screens?

Discover the advantages of movable screens in poly greenhouses, such as their positive impact on crop development and energy use.

Coming soon

ValkPoly+: the solution

See how the ValkPoly+ screen system lets you effortlessly control light, temperature, and humidity in your poly greenhouse.

Coming soon

What ValkPoly+ delivers

25% higher crop yield

Using movable screens can boost yield by 25% compared to chalking. Screens provide 30% more photosynthetically active radiation (PAR) at crop level, leading to stronger, more productive plants and higher yields.

30% more PAR light

Screens ensure significantly more PAR light at crop level throughout the season, optimizing growth conditions. This leads to healthier and stronger crops, resulting in higher yields.

Lower relative humidity

Screens lower relative humidity (86% compared to 88% with chalking), helping prevent fungal diseases. Hours with humidity above 95% are cut in half: 50 hours with screens vs. 100 hours with chalking.

Short payback period: ~2 years and 10 months

The average payback time of a screen system in a Spanish poly greenhouse is 2.85 years, based on a 25% higher crop yield. A significant cost saving!

Prevention of heat loss

Screens increase the average temperature by 2°C, which supports crop growth. At night, minimum temperatures remain about 4°C higher thanks to movable screens. This is especially important in the early season and also helps prevent frost damage.

Full flexibility and control in your greenhouse

By closing the screen at night, heat is retained longer, making your greenhouse more energy-efficient and reducing heating costs. From April onwards, screens are only used when really necessary, saving even more energy. This way, you combine crop comfort with efficient energy use.

Ready for ValkPoly+ in your poly greenhouse?

Are you excited about ValkPoly+ and curious what this screen system can do for your crops? Or do you still have questions? Fill in the form alongside, and ValkPoly+ expert Jari will contact you as soon as possible.

Interested in the technology behind this screen system? Take a look at the ValkPoly+ product page!