改变水稻水生态环境,可进行控制土壤水分灌溉(简称“控灌”)。若加上覆膜进行控灌,节水增产效果更好。近年来,浙江大学、河海大学、中科院水稻所研究的控灌技术,是国家“九五”期间的重大科技成果,已得到大力推广。我省也进行了一些适应性的试验和部分推广:如鸡西的喷滴灌试验、八五O农场结合“九五” 国家三江攻关、庆丰农场进行覆膜控灌并且研制半机械水稻覆膜打孔机等,都取得部分成果。但与全国比,差距还很大。“控灌”是以改变水稻水生态和控制非关键生理需水 Change rice water ecological environment, can control soil moisture irrigation (referred to as “control irrigation”). If coupled with film for irrigation control, water yield better. In recent years, the control irrigation technology researched by Zhejiang University, Hohai University and Chinese Academy of Sciences and Rice has been a major scientific and technological achievement during the “Ninth Five-year Plan” period of the country and has been vigorously promoted. In our province, some adaptive experiments and partial popularization have also been carried out. For example, the spray drip irrigation experiment in Jixi County has been carried out. In August 1985, the farm combined with the “Three-Five” national breakthrough in Sanjiang, Qingfeng Farm, Hole machine, etc., have achieved some results. But compared with the whole country, the gap is still huge. “Control irrigation” is to change rice water ecology and control non-critical physiological water requirements