New: plant-controlled process control
Priva is introducing a revolutionary new plant-controlled concept
for process control - Priva TopCrop. Including the plants directly
in the control loop means that their precise transpiration capacity
is known at all times. This allows the climate to be controlled
directly and precisely and to be actively controlled based on the
desired crop activity: 24 hours a day, 7 days a week!
For the grower or crop consultant, Priva TopCrop is an
additional tool that allows the plant itself to influence the
climate. It measures and responds directly and works with more ease
than the current control systems. There are fewer variables to be
set by the grower, which reduces the risk of errors. And the grower
who makes the fewest mistakes achieves the best quality and the
highest production.
Active control based on crop activity
The new concept comprises the existing Connext controls for the
greenhouse climate, along with an additional control that provides
irrigation, heating and ventilation when the plants demand it. The
system is based on the crop activity. This is measured via the
plants' water balance, in other words, from the take-up, the
transportation and the transpiration of water. The purpose of the
control is to ensure that the plant always has enough water to
transport nutrients and assimilates, to build new fibres and to
keep itself cool. The crop control promotes balanced crop growth,
without growth disorders or abnormalities. This can be achieved by
inhibiting the transpiration or even by giving the plant additional
stimulus. Transpiration is, after all, the driving force behind the
take-up of water and nutrients.
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