Fore- word

instru-
 ments

on
 focus

 crops

The greenhouse - the monitoring instruments

The detection of the physiological exchanges between the greenhouse and the environment was performed thanks to the following monitoring instruments:

Soil moisture sensor “TDR ecoprobe”, one for each trial, in order to detect continuously the moisture of the portion of soil explored by the roots. This enables to know the field moisture and consequently the real demand of water of every unique trial
Portable photosynthesis and gas analysing system “CIRAS2”, it enables to monitor gas fluxes exchange, oxygen and CO2, of the system "plant-soil", thanks to dynamic detection of the leaf gas exchange, the fluorescence and the soil respiration, and therefore of the photosynthetic activity.

The CIRAS2 detector during the analyses of the soil respiration (assessment of the microbes activity of the soil) On the foreground could be noticed the detecting bell and the thermometer sensor inserted into the ground.
Instrument to detect the living root growth, thanks to the mini-rhizotron“CID CI-600 Root scanner”. It enables to shot photos of the living root growth and to assess and to measure its development during the crop cycle. In this way it is possible to have objective information concerning interactions between the plant and the soil substrate.
The plastic transparent pipes are inserted into the ground during the crop transplant, in order that the plants roots could grow around them and pictures of them could be taken by inserting the scanner into the pipes.
Multispectral radiometer (MSR - Cropscan). It enables, thanks to the analysis of the reflected radiation of different wavelenghts and the creation of different indexes for the spectrum of each trial, to assess the nutritional state of the crops in order to establish the needed fertilisation input and to reduce the fertilisers amount usually utilised.
Detail of the data acquisition and transmission unit with photovoltaic array. On the left, in foreground, the data logger for the 36 moisture sensors.
 

 

 

 

 

 

 

sche-
 me