Root temperature influences all parameters of the plant’s physiology and is more critical to a plant’s performance than canopy temperatures. An optimum RZT range is essential for a plant’s robust growth, productivity, quality, nutritional processes and availability of oxygen. Fortunately, most plants have a similar optimal RZT range of 16°-28° C, a range that is addressed effectively by ROOTS’s RZTO products. Optimal root zone temperatures translate to healthy roots = healthy plants = robust immune system = greater yields.

Our technology is suitable for all cultivation substrate types: soil, grow bags, elevated beds, pots and even hydroponic cultivation systems.

All crops can benefit from an optimal RZT, an RZT range is needed by crops so they can flourish and provide high income and so you can enjoy production security.

The trees can be “put to sleep” earlier and “accumulate” cold hours. In addition when hotter days come, the RZTO can facilitate, at the right temperatures, a “cold hour’ accumulation” sequence. Finally, the trees can be “woken up” earlier and therefore produce fruit earlier in the season so that premium prices can be achieved.

Yes! The RZTO system is easy to install in existing greenhouses, or can be integrated as part of newly designed ones.

No! The D-RZTO (drip irrigation combined with RZTO in one piping system) is only one solution, and it can provide irrigation and temperature control using the same controller and water pipe system. However, if you already own an irrigation system, the RZTO can be installed as a separate system.

Yes! The RZTO can be used for many years and can be easily reinstalled if the crop or substrate is changed.

No! The system cools or heats the roots as needed, based on feedback from the sensors. When the temperatures are optimal, the system stops working to further save energy.

That depends on the size of the designated project,  the number of plants and the configuration used as an energy source. Generally speaking, for an acre, ground source heat exchange configuration takes 3-5 days to install depending on the number of embedded coils. Heat pump only installations would take 2-4 days on average per acre. 

Over 50 total systems have been installed in the USA, Israel, Italy, Korea, Australia, and Spain.

This depends on the crop but is usually about 2 years. With high end crops (e.g Cannabis) it can be less than 1 year

  • The most common installation configuration is with heat pumps and a water tank
  • The second most common is the GSHE system: Ground Source Heat Exchange it consists of – coils inserted in boreholes to exchange heat between water in the coils and the deep soil. the water then discharges the heat/cold within root zone. Under this configuration, the only energy used is to activate a circulation pump
  • The third configuration is the combination of heat pumps and GSHE system