本报讯近日,首批国家重点研发计划“农业面源和重金属污染农田综合防治与修复技术研发”重点专项——《水稻主产区氮磷流失综合防控技术与产品研发》项目启动仪式在中国农科院举行。该项目分为6个课题:稻田氮磷流失及其区域水风险研究、典型水稻种植模式氮磷控源增汇技术研究、稻田精准控水扩容技术研究、田—沟—塘水量水质协同调控与循环利用技术研究、受污水体菌—藻—草共生系统高效净化技术研究、智慧型稻田氮磷流失综合防控技术体系构建与应用等。一是通过控氮稳磷技术及施肥管理减少氮磷流失;二是通 Recently, the first batch of key national R & D projects such as “Research and Development on Comprehensive Prevention and Rehabilitation of Agricultural Non-point Source and Heavy Metal Contaminated Farmland” was launched with a focus on “Research and Development on Integrated Prevention and Control of Nitrogen and Phosphorus Loss in Major Production Areas of Rice” Ceremony held in Chinese Academy of Agricultural Sciences. The project is divided into 6 topics: nitrogen and phosphorus loss in paddy field and its regional water risk research, typical rice planting patterns of nitrogen and phosphorus sources increasing technology research, precision rice paddy water control and expansion technology research, Tiaogou - pond water quality control and coordination Recycling technology research, sewage water bacteria - algae - grass symbiosis system efficient purification technology, intelligent paddy field nitrogen and phosphorus loss prevention and control technology system construction and application. First, through the nitrogen and phosphorus control technology and fertilizer management to reduce nitrogen and phosphorus losses; second pass