02 Oct

Growing season 2020 is nearing the end

Now that the crops are waiting for harvest under the autumn skies, it’s time to remove the measuring stations from the field again.

Sensors in combination with the smart RMA dashboard have also proven their value in the 2020 season. The stations with the soil moisture sensors helped the farmers to optimize the irrigation to achieve the maximum crop yield.

Maximale gewasopbrengst met RMA sensoren

17 Sep

Uireka tests disease model RMA

Head rot in onions is a persistent problem. The food chain project Uireka in the Netherlands conducts research into, among other things, the control of top rot in the cultivation of seed onions.

Uireka investigated whether the protection of onions against head rot can be improved by using crop protection products based on decision support systems. The disease model of RMA was one of the systems examined in the 2019 trial year.

With the RMA disease model, the percentage of onions with head rot after 4 months of storage was 4,3% compared to 9,8% with a normal practice schedule. This is a good result with 3 targeted spraying against head rot based on the weather conditions.

17 Aug

Grower meeting demonstration project Poland

This week Peter Raatjes from RMA was in Poland for a grower meeting to show the results of the demonstration project that RMA conducts together with IrriWatch and Loonstra & van der Weide.

A group of potato growers was invited jointly with HZPC Polska to come and see the sensor systems in the field with drip irrigation. The need for irrigation was clearly visible.

14 Aug

Measuring soil moisture in the park and garden sector

Sufficient availability of water is also of great importance for trees to survive.

For a customer in the park and garden sector, RMA offered a solution to gain remote insight into the amount of soil moisture. Provided that the setup of the monitoring points would be invisible in the public space.

With our LoRa modules, positioning such a solution underground was no problem at all for RMA. The LoRa modules fit well in so-called street pots.

By monitoring soil moisture at strategic locations, data-driven use of irrigation systems has become possible for the customer. This can be used with, for example, transplanted trees or the (temporary) monitoring of groundwater pumping.

26 Jun

Installation of sensors for precision crop nutrition

To measure the availability of nitrogen (N) and potassium (K), RMA also installs nutrient sensors this growing season. The aim of the setup is to use the fertilizers N and K as economical and useful as possible. And don’t forget that precision nutrition contributes to maximum crop quality. RMA measures nutrients in potatoes, onions and flower bulbs such as lilies and gladioli.

LoRa data loggers are installed in the fields of the participating farms that continuously measure the moisture and nutrient content in the soil. The growers can use the smart dashboard to determine whether and when irrigate and what the effect will be on the nutrients in the soil. The nutrient sensors are manually calibrated by regularly absorbing moisture from the soil and analyzing this with a speed tester.

The project of installation of sensors for precision crop nutrition is made possible in part by the Future-oriented Agriculture scheme of the Province of Drenthe.

27 May

Start demonstration project to improve irrigation in Poland

The Dutch companies RMA, Loonstra & van der Weide, Irriwatch and the Polish farm Cena are starting a cooperation project in Poland.

In the project, the techniques of soil scans, sensors and satellite images come together. What we do during the growing season is to compare the advices for different irrigation techniques such as drip tape, pivot and reel. This gives us insight into the possible savings and yield increases. The Polish growers are very interested after the very dry years of 2018 and 2019.

The project is partly supported by a contribution from the subsidy scheme for demonstration projects, feasibility studies and investment preparation projects (DHI) of the Netherlands Enterprise Agency (RVO)).

16 Apr

From flooded fields to agricultural drought

From floods to drought in a very short time: many farmers have already starting irrigating again. But what is the best timing and how much water should be applied?

Irrigation management contributes to profitable and sustianable crops. RMA supports growers with novel sensors, a smart dash dashboard and expert guidance. Read more about our approach in this brochure.

RMA has 25 years of experience and can be characterized by a personal way of working and a no-nonsense approach. Our methodology not only ensures confidence in the technology, but above all the human aspect in it.

24 Feb

Nutrient sensors adjust nutrition to crop demand

Nutrient sensors continuously measure the concentration of minerals in the soils. “The readings will help growers to adjust their fertilizer application rate and timing to match with what the crop exactly needs.”, says Peter Raatjes, director of RMA. In an article in Dutch agricultural magazine ‘de Boerderij’ Peter explains that the effect of irrigation on concentration of nitrate and potassium in the soil available water can really be measured.

07 Feb

Introducing our new colleague

RMA is growing. We will expand our team with Bas Hengst on 1 March 2020 in the position of Field Service Engineer.

Bas will be responsible for the installation and maintenance of telemetry and sensor systems at our customers. The intention is that the United Kingdom becomes an important area of ​​attention for Bas. RMA recently concluded a service contract here for a large weather station network.

Bas has experience in agriculture and he knows what he is talking about when speaking about technical installations. Bas gained experience with crop growing in Australia and worked in South Africa as a product specialist for water quality sensors and data loggers.

“I am looking forward to working at RMA, gladly roll up my sleeves and take this opportunity in precision agriculture with enthusiasm,” says Bas. Preparations for his arrival are now in full swing. We wish Bas every success with RMA!

Visitekaartje Bas Hengst

Previous posts »