HARBIN — As autumn winds ripple through fields of fragrant rice at a Beidahuang farm in Northeast China's Heilongjiang province, grower Wei Guodong rubs a freshly plucked panicle between his palms, revealing plump, gleaming grains. The farm belongs to Heilongjiang Agriculture Company, the A-share-listed arm of Beidahuang Group, a major state-owned agribusiness in the province. Wei's confidence had been boosted months earlier, during the seedling stage, when the greenhouses at the farm underwent a full-chain smart upgrade that is now reshaping rice production in one of China's major grain-producing regions. Liu Dong, a manager at the 852 Farm branch, said the company invested this year to retrofit its seedling greenhouses with sensors, automated film rollers, smart irrigation valves and panoramic cameras. The province's overall agricultural mechanization rate has reached 99.34 percent, the highest in China, with smart agriculture demonstration zones being built to shift production from "watching the sky" to "watching the screen" — a microcosm of the thousands of farms across China embracing smart agriculture.