Long after sunset, Motoaki Iijima's illuminated greenhouse north of Tokyo glows like a lantern as the flower farmer harvests pink and orange gerberas, avoiding a daytime sun fierce enough to be deadly.As increasingly intense heatwaves turn Japanese summers into survival tests, farmers — from flower and asparagus growers to egg producers — are rewriting the agrarian clock.Once-busy midday hours are now avoided as a mortal threat, replaced by after-dark work to protect crops, livestock and themselves.Iijima, 36, converted his family's centuries-old rice farm in the rural town of Nikko into …READ FULL ARTICLE