On May 30, 2009, water-saving equipment engineering co., LTD. Jieyang city of China Pan Huaicong blessed the king accompanied by heilongjiang provincial water resources bureau, director of the ministry director Lin, li Yin daqing city's water bureau chief, Mr Dumont county water district director of survey research and drought conditions. Daqing corn seedlings grew well, drip irrigation under film with drip irrigation under membrane seedlings without contrast, difference is very big.