There ’s a magic that happens when a crop gets just the right balance of inputs . And that right amount depart by season , but also by the fourth dimension of solar day . That was one of the messages that beam out from a late elbow grease to gather together expert sixth sense and Svensson test data for publication in a new usher for growers in warm neighborhood such as Mexico , Latin America , and southerly Spain .
Paco Usero , a Svensson Climate Consultant based in Almería in , Spain , pronounce that the insight that plants need different conditions at different multiplication was a primal reason for Svensson designing the clime blind it produces and the strategy it share with customers .
" Every plant life has an optimum light saturation range , " he explain . " Above or below that level , we are losing yield , overheat the plant cells , or losing efficiency in photosynthesis . "
But hit that sweet spot , and the results can be striking , he says . Svensson has contribute together its own expert ’s idea , its customer ’s insights , and key test information in the new published usher The legerdemain of getting the calorie-free balance just right .
" An important trial was channel in Mexico where we compared a nursery with whitewash with the same crop in a similar greenhouse with screens that could be opened betimes and late in the daylight , " he remembers .
In the trials conducted in 19 - year - old plastic glasshouse , a focus on light residue with the addition of Svensson dirt ball clear over the vents result to a 20 % gain in yield and six additional harvesting weeks ( for full references and point , see link below ) .
Figure 1 The orange dome - regulate railway line on the chart is the total sunlight , and the green dome - determine occupation is the light inside a whitewashed nursery . The grey line shows the light in the house with movable screen . Since the screenland opens fully at morning , more light is made available to warm the crop and promote growth . Then from 0800 to 1700 , the screen are close up to render optimal diffuse Inner Light to the craw and shade for the peak hours . Over a growing season , some 30 % more visible light is available to the crop , with lead beneficial effects on output and quality .
Remove shadowiness screenAccording to Usero , a key element of the trial was to get rid of shade screens to give the crop an gumptious start to the day and then introduce more shade as swooning level top out around midday .
" In the former morning , and late good afternoon , this gives agriculturalist using a clime screenland an advantage , " he says . " They can get the most out of the dawning and good afternoon twinkle by abjure the screen fully . "
In improver , at midday , the covert block the most vivid irradiation and scatter soft lighting evenly throughout the glasshouse , he says .
" This creates a gentle and more mellow - grade , horizontal dissemination for faster growth and tidy plants . This controller and flexibility ca n’t be obtain by using whitewash . "
FACT BOX :
Svensson ’s scout , The magic of getting the light balance just right , is available todownload for free in a reach of language here .
For more information : Ludvig Svensson[email protected]www.ludvigsvensson.com
