Plant energy modelPoland 2016

Trutina - weight based activity evaluation

weight based activity evaluation

• Scientific definition: the organic matter produced in a given time interval• Measuring biomass is only needed in industrial facilities.

The water content of the plant is regarded as constant in twenty-four hours on average.• Definition of genetic potential for a given time interval

and a given variety• Understanding patterns requires further research

How to measure biomass?Trutina

weight based activity evaluation

Trutina HydroBiomass sensors are highly sensitive devices. Their installation is rather difficult in industrial conditions.

weight based activity evaluation

• Based on our experiences it should be enough• We must not forget that it is a unit of measurement • We measure four plants with utmost accuracy and

assume that their reactions are representative of all the plants in the greenhouse

The representativeness of four plants for the whole greenhouse

Trutina

weight based activity evaluation

Plant energy cycleTrutina

weight based activity evaluation

• Plants use 93-95% of the energy coming from solar radiation for evaporating the absorbed water

• Their energy use is characteristic and it is approximately proportional to their transpiration

Plant energy modelTrutina

weight based activity evaluation

Light measurementTrutina

Type of sensor: silicon detector cellSpectral range: 350-1100 nmSensitivity: 1,2mv/W/m2

weight based activity evaluation

Trutina

weight based activity evaluation

Trutina

weight based activity evaluation

• Example: Let’s assume that the grower uses 8l/m² substrate while keeping a usual 13% difference in water capacity.

• There has already been a 5,44% decrease so we can calculate with a further 7,56% decrease until sunrise.

• In this case the irrigated water per square metre was 2,3 ml/J/cm².

8l X 7,56% = 0,60 l x 225,7 J = 135,42 J That is: 907,59 J – 135,42 = 772,17 J

Plant energy modelTrutina

weight based activity evaluation

Irrigation – transpiration - drainTrutina

weight based activity evaluation

The proportion of energy and irrigated water in ml/J at sunsetTrutina

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 350.0

2.0

4.0

6.0

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10.0

12.0

0

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2

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energia mérleg kiadott ml/j

weight based activity evaluation

Questions we are working on:

• Determination of genetic potential (dashboard) • Determination of actual value in J/ml (dashboard)

• Characteristics of biomass (vegetative vs generative)

Plant energy modelTrutina

Trutina - weight based activity evaluation

Data are avaiable both on computers and smartphones. Each client has their own login and password.

weight based activity evaluation

Thank you for your attention.

Trutina