Dutch artist Daan Roosegaarde's latest project， GROW， involved installing（安裝） thousands of blue， red and purple LED lights in a 2-hectare field of leek （韭葱） for both aesthetic（美学的） and practical purposes. People driving by the town of Lelystad， in the central Netherlands， at night， this time of year are treated to a nice sight—a 20，000-square-metre field of leek glowing blue， red and purple. Thought up by Studio Roosegaarde， the unique artistic installation is designed both as a homage（敬意） to Dutch farmers and as an inspiration for them to experiment with artificial light in outdoor farming. Daan Roosegaarde also wants GROW to send a beam of hope to people in these trying times to give new meaning to the word “agriculture” as a living cultural artwork.
Nighttime ultraviolet（紫外线的） light has been used in glasshouse agriculture for a while now， especially in places where direct sunlight is scarce， but its use in outdoor farming has so far been very limited. Ultraviolet light is known to help plants grow better， but Studio Roose-gaarde is also testing a theory according to which certain wavelengths of ultraviolet light could reduce the need for pesticides（杀虫剂） by up to 50%.
“So we started to scan the plants with these wavelengths of light and then suddenly they started to dance to the light，” Daan Roosegaarde said. “You had these huge fields of fireflies and we were testing it and the magic started kicking in， so I think that's when the worlds of science， art and design collide with and enhance each other.” Solar-powered LEDs project ultraviolet light onto the leek plants， thus adding the effect of natural sunlight after sunset and creating a surreal （超现实的） spectacle at the same time.
GROW is currently only visible near Lelystad， but Roosegaarde plans to take the visually-impressive installation on the road to over 40 countries. Each country will have its own local or national crop and its own unique light recipe. Over the years， Studio Roosegaarde has created a number of fascinating installations， like the glow-in-the-dark bicycle path powered directly by the sun.
Why was the unique artistic installation designed？