Diffuse light has been a much discussed theme in recent years in greenhouse horticulture . Many new greenhouses are equipped with diffuse meth , with seasonal software , or other means to ensure that the light entering the nursery becomes diffuse .
But what exactly are the benefit of diffuse brightness level ? On an evening organized by Ludvig Svensson , Silke Hemming from Wageningen University & Research spoke about the benefits of diffuse light in the greenhouse . Silke Hemming , Wageningen University & Research
What is diffuse light?To get a honorable depiction of what diffuse light can intend for refinement , one first of all must know what diffuse ignitor is . " Diffuse light is the dispersion of luminance , " enjoin Silke . “ When the sun is shine now on the greenhouse , the twinkle also comes in straightaway , more focused .
“ Diffuse luminosity is light that enters the greenhouse from all guidance , when it is cloudy , for example , the light is diffuse , but then the chroma of the light is less . to boot , as a grower you by nature do not want to be pendent on the atmospheric condition , so you use screen , seasonal coatings or other material to make the light diffuse . ”
What are the effects of diffuse light?Now that we know what diffuse light is , what are its effects on the cultivation ? First , Silke take note that the research that has been conducted concerns the effect of the same amount of diffuse light and direct light . " There was a subject field by a PhD bookman who looked at the various factor that make diffuse lightness in force in tomato plant cultivation , " state Silke .
“ Various aspects were critique , such as horizontal light distribution , erect light dispersion , photosynthesis capacity of the crop and the adaptation of the plant ’s morphology . Because of these effects , agriculturalist must learn to produce in a dissimilar way with diffuse light . "
Photo of the MightyVine nursery , fit with diffuse glass
gamy photosynthesis capacityThe research show that diffuse lighter had an effect on all these aspects . Diffuse light resulted in good horizontal and vertical light dispersion , as a result of which the foliage stop more light on fair . " This in turn has the outcome that the photosynthesis capacity is in high spirits in the foliage in diffuse light than in unmediated lightness , " according to Silke .
“ In a cucumber crop , we take measurements of the nursery breeze temperature and there was no difference between lineal or diffuse light , because it is about the same light intensity . But with the flora temperature there was a difference of opinion . In the center of the twenty-four hour period in particular , the plant temperature was mellow in the section with direct light than in the department with diffuse light . The plant in the diffuse department were also less stressed . "
All these effects of diffuse clean result in good outcome for the cultivation . " We see that a high loose statistical distribution in tomato solvent in a higher issue , " says Silke . " In addition , we see that in mass plant life test that the plants grow quicker and create a gamy biomass faster , and were of good quality . "
A higher intensity?Yet there was still one question rest : ‘ What if I have diffuse light and increase the intensiveness of the light ? ’ " To quiz this , two culture visitation have been set up , " says Silke . “ In trial one , more light is allowed in , a greater temperature integration keep and also a eminent moisture content used .
In test two , everything was further increased : an even higher intensity , temperature integrating and moisture content . ” The result ? " With tribulation one , mostly positive development were seen , salutary caliber , better maturation , etc . Trial two turned out to exceed the bound and the effect was counterproductive . "
