China is likely to import more grains after its output this year fell by about 5.2 million tonnes compared with last year as the planting area shrank and per unit yield also decreased, according to official data.National grain output stood at about 616 million tonnes in 2016, down by about 5.2 million tonnes, about 0.8 per cent, compared with last year, a data by the National Bureau of Statistics (NBS) said. It also said that the Grain planting area fell by 3.15 lakh hectares, while the per unit yield decreased by 30.7 kilograms per hectare. Grain production last year was over 621 million tonnes, higher than 2014's 607 million tonnes.