Expertises

Greenhouse horticulture

Yookr is active in the greenhouse industry and contributes to making it more sustainable.

Temperature, light, soil moisture and the presence of nutrients are key indicators for optimal crop growth in the greenhouse. But what are those values at any point in time? And what action(s) should you as a grower take to obtain those optimal conditions?

Yookr can help you both in harvest forecasting and in regulating the best possible (micro) climate in the greenhouse. We measure the development of growth and climate in the greenhouse with multiple sensors, for example every 10 minutes.

With our sensors and solutions, you as a grower/grower gain insight into the (climate) situation over the full height and width of the greenhouse. This is a big advantage over current climate computers. In addition, you can set your own minimum and maximum values that are important for the specific plant, and therefore for you. If this critical value is reached, you will receive an alarm notification via telephone message, text message or e-mail. You can then take immediate action by, for example, opening or closing windows, screens, reheating or giving water and/or nutrients and opening or closing screens.

Our dashboard makes it easy to compare days or periods. As a grower, this gives you quick and efficient insight into data and allows you to analyse data on why, for example, growth is better or less during a period.

Yookr places the following sensors in the greenhouse industry:

• Temperature sensors
• Humidity sensors
• Soil moisture sensors
• EC sensors
• Weight sensors
• PAR sensors (light)
• Pyrano sensor (solar radiation)
• Leaf wet sensor
• Infrared pyrometer sensors
• CO₂ sensors
• Photosynthesis sensors
• pH en O₂ sensors

Open cultivation

Yookr operates in open-field cultivation and contributes to making this sector more sustainable.

Temperature, light, soil moisture and the presence of nutrients are key indicators for optimal crop growth in the open field. But what are those values at any point in time? And what action(s) should you as a grower take to obtain those optimal conditions?
Yookr can help you do just that.

We measure soil and climate development in the field with multiple sensors, every 10 minutes.
With our sensors and solutions, you as a grower/grower gain insight into climate data such as temperature and precipitation as well as soil conditions such as soil moisture and temperature, pH value and electrical conductivity (EC value).

You can set minimum and maximum values that are important for the crop, and therefore for you. If this critical value is reached, you will receive an alarm notification via phone message, text message or e-mail. You can then react immediately to (exceptional) climate situations such as frost or drought. You can take immediate action by watering, for example.

Our dashboard makes it easy to compare days or periods. This gives you as a grower quick and efficient insight into data and allows you to analyse data on why, for example, growth is better or less during the day.

Yookr places the following sensors in open-field horticulture:

• (Soil) temperature sensor
• Soil moisture sensor
• EC sensor
• Rain sensor
• PAR sensor
• Pyrano sensor
• pH en O₂ sensors

Public space

Yookr operates in public spaces and contributes to meeting climate goals.

Greenery in the city will play an important role in climate adaptation through the following key mechanisms: greenery has a cooling effect, greenery reduces flooding and greenery increases infiltration capacity. The latter can also counteract drought. But what are the effects of greenery in the city? How can these effects be made measurable?
Yookr can help with this. We measure soil and climate development in squares, parks and streets with multiple sensors, every 10 minutes.

You as a climate adaptation officer or green space manager are able to use our sensors and solutions to gain insight into climate data such as soil moisture, temperature, precipitation amount and particulate matter content in the air as well as soil conditions such as soil moisture and temperature.
You can set minimum and maximum values that are relevant to you. If this critical value is reached, you will receive an alarm notification via phone message, text message or e-mail. Work schedules can be adjusted accordingly. This makes unnecessary watering, for example, a thing of the past which obviously saves time and money.

Our dashboard makes it easy to compare days or periods. This allows you as the person in charge to quickly and efficiently gain insight and analyse the consequences of actions taken.
In addition, with our dashboard, citizens can easily be informed about results of climate investments. This will increase citizen-participation in achieving climate goals.

Yookr places the following sensors in public spaces:

• (Soil) temperature sensor
• Soil moisture sensor
• EC sensor
• Salt sensor
• Rain sensor
• pH sensor
• Particulate
• CO₂ sensor

These sensors can all be attached to our measuring column. A simple and space-saving way to place sensors in public spaces.

Sports fields

Yookr is active in on sports fields and contributes to meeting climate goals.

Water management on sports fields is going to play an increasing role due to climate change and climate goals. Water is important for the quality of sports fields. Both to keep turf strong and watering artificial turf pitches. But when should you irrigate?
Yookr can help with this. We measure climate development in the root zone of the grass with multiple sensors, every 10 minutes. With our sensors and solutions, you as a sports field manager get insight into the soil moisture content and EC value of the soil on the sports fields. You can set minimum and maximum values that are relevant to you. If this critical value is reached, you will receive an alarm notification via a phone message, by SMS or e-mail. Work schedules can be adjusted according to the current situation. This makes unnecessary watering, for example, a thing of the past, saving time and money.

Our dashboard makes it easy to compare days or periods. This gives you quick and efficient insight into the condition of the (artificial) turf.
And this development goes even further. By linking multispectral data from the drone, we are able to gain much faster insight into the health or vigour of the grass through images and photos. In 2023, we will continue this in full force. In any case, the 1st results are promising.

Yookr places the following sensors on sports fields:

• (Soil) temperature sensor
• Soil moisture sensor
• EC sensor
• Rain sensor

Other

Develop qualitative data for soil life insight.

Yookr is working on methodologies to make soil life insightful.
By performing soil scans to determine the bacterial/fungal ratio in the soil, we can learn what soil life looks like. With this, we are learning more and more about one of the most essential things in nature and that is soil life: If we want to grow healthy vegetables and/or other plants/trees, a healthy soil life is super important.
We are also busy testing new sensors such as a pH and Redox (oxygen) sensor in the soil. We expect the first results this year. In any case, the trials give a hopeful picture that these sensors will further help us unravel secrets of healthy soil.

Development data from multispectral drones.

Another topic in full development at Yookr: flying multispectral cameras on drones.
We have been working for almost 2 years to integrate the photos from the drones we end up using to create data. First results are currently being recorded.
This multispectral drone allows us to ‘look’ into light spectra that are not observable with our eyes. We look in NIR-RE spectra (Near Infra Red and Red Edge spectra) in which the growth activity of plants/grass becomes visible much earlier. This knowledge allows you to make adjustments earlier than before.
The indices derived from NIR-RE can teach us a lot about vigour, plant stress, fertiliser demand, nitrogen uptake, chlorophyll content (nutrient content) and potential yields.

As you can see, Yookr wants to offer a total understanding of what is happening in the ground but also above it.
A great learning opportunity in which we work with our partners to build a sustainable future.