Researchers have developed a methodology to compare the performance of growers using clear and diffuse glass . In the future , this method acting could be used to analyse growers ' information in an anonymous and similar way .

Even though diffuse glass has been widely espouse , there are still some linger doubts . These have mainly to do with the fact that , agree to researcher , glasses not only change the diffusivity (= Hortiscatter ) but light transmission too . In practice , these can not be escort one by one in a nursery because you always have to deal with the combination of at least 2 factors . That was the grounds for doing this research , but also to develop a method acting to better understand loose transmission and diffusivity .

Shedding lightFive companies from a group of more than 35 potential participants with both a greenhouse with diffuse glass roof and a greenhouse with a cleared cap take part in the research . In this elbow room , it was much easier to draw comparisons . These companies grew cucumber , tomato and cerise tomato . In addition , two strawberry growers participated , one with clear glass and the other with clear glassful with a bivalent AR coating .

PAR sensing element under the glass , and PAR sensing element above the harvest

8 % higher yield in kilogramsThe research testify that growers call for more figures than just those on light transmission . Although this is a very relevant attribute of the glasshouse roof , the performance of the intact product system is a good amount than how expeditiously the crop can deal with the transmitted or administered light source . A greenhouse cover with lower transmitting generally lead in low-spirited production , as the formula of thumb ' 1 % more light is about 1 % more production ' still applies to these harvest . If the light transmission of a diffuse cover decreases by 10 % , there is still a net loss of production , even though the harvest utilize the transmitted light with a 6 % higher efficiency .

Thus , investigator appear into Radiation Use Efficiency ( RUE ) too , to better realize light transmission system and diffusivity .   RUE find out how many kilograms are harvested per social unit of available solar radiation . The survey showed that RUE is on mediocre 8 % higher in diffuse nursery . In other words : per MJ of worldwide radiation therapy , 8 % more kilograms are produced in the diffuse greenhouses compared to the clear glasshouse .

Prior to the study , many company thought they had to inflame more under diffuse glass . However , this study establish that there was no difference in energy consumption between the diffuse and the clear nursery , for all participating crop . The energy efficiency in the diffuse greenhouses was on median 12 % higher than in the clear greenhouses .

Read more here at Kas als Energiebron