Plant Energy Model. Ispemar
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Transcript of Plant Energy Model. Ispemar
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Plant energy modelPoland 2016
Trutina - weight based activity evaluation
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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
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weight based activity evaluation
Trutina HydroBiomass sensors are highly sensitive devices. Their installation is rather difficult in industrial conditions.
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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
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weight based activity evaluation
Plant energy cycleTrutina
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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
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weight based activity evaluation
Light measurementTrutina
Type of sensor: silicon detector cellSpectral range: 350-1100 nmSensitivity: 1,2mv/W/m2
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weight based activity evaluation
Trutina
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weight based activity evaluation
Trutina
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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
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weight based activity evaluation
Irrigation – transpiration - drainTrutina
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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
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energia mérleg kiadott ml/j
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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
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Trutina - weight based activity evaluation
Data are avaiable both on computers and smartphones. Each client has their own login and password.
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weight based activity evaluation
Thank you for your attention.
Trutina