Category - TECHNOLOGY

Improving reforestation tree nurseries greenhouse efficiency

White Paper: High-tech greenhouse system for...

3 weeks ago

You will find in this new post a new White Paper discussing about how can we improve tree nurseries efficiency using high-technology 4.0 greenhouse system with equipment, automation and robots.

climate battery greenhouse system to produce food without energy cost

Climate-battery energy savings low tech...

11 February 2023

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The first objective of a climate battery greenhouse system is to heat the growing area without using expensive fossil fuels (or electricity). Indeed, more than ever the dependence on fossil fuels and their increasing cost pose problems for...

culture sous serre une solution pour économiser l'eau en agriculture

Greenhouse cultivation: plant protection and...

14 August 2022

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The latest episodes of drought and successive heat waves in Europe show us that we will have to rethink the agricultural model of tomorrow. A more reasoned agriculture, less greedy in inputs (fertilizers, phytosanitary products...), respecting...

Adiabatic positive pressure cooling system

Is positive pressure cooling a good...

18 June 2022

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Adiabatic cooling (also called evaporative cooling) works on the principle of water evaporation. It means that the air is cooled to a desire temperature for the crops. Positive pressure adiabatic cooling is getting more popular in North-America...

greenhouse growers should pay attention to vapor-pressure deficit and not relative humidity

Why the Vapor-Pressure Deficit (VPD) is an...

10 April 2022

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The Vapor Pressure Deficit (VPD) is one of the main forces driving evapotranspiration in plants. The VPD is the difference between the maximum amount of water the air can hold and the amount it does contain. ore and more growers are doing VPD...

Roll-up sides and roof vent to improve the greenhouse air ventilation exchange capacity

Fluid dynamics: Should I add a roof vent to...

5 April 2021

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The use of high tunnels (covered with plastic film) is widespread especially in Europe and North-America for many target crops. [...] Growers usually use the passive ventilation on the sides with manual or motorized mechanisms called sides roll...

Optimal daily light integral for leafy greens crops with hydroponic system NFT

Daily Light Integral interactive tool for...

27 February 2021

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DLI is now a common term (measurement) used by commercial growers and plant scientists. In this article,an interactive and useful tool made by Joanne Logan and James Faust to check the Annual and Monthly DLI Values (mol/m2/day) in the United...

Greenhouse engineering: psychrometric chart

Air humidity – How to read a...

29 December 2020

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The "psychrometric diagram" of humid air is a tool to facilitate the representation of air transformations. [...] The basic concept is that there is a relationship between temperature and saturation humidity

UV rays positive influence to the crops in horticulture

Why more growers are using UV-Open...

22 July 2020

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Some UV radiation can interfere with growth, development, photosynthesis, flowering, pollination and transpiration...

Active ventilation: a positive pressure...

3 July 2020

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The concept of positive pressure ventilation consists of mechanically injecting fresh air from outside to inside the greenhouse into the growing area. Positive pressure ventilation allows for maximum exclusion of insects and uniformity of...