为探索稻鸭共作种养模式下稻田不同种类杂草数量和福寿螺数量的变化动态，本文阐明了稻鸭共作种养模式的杂草和虫害防控机理以及分析了稻鸭共作模式的经济效益。于2018年4月在湖南农业大学浏阳实习基地进行试验研究，试验设置：打农药、打除草剂、打灭螺剂种植模式(简称CK)；打农药、打除草剂、不打灭螺剂、放鸭种养模式(简称DK)；不打农药、不打除草剂、不打灭螺剂、放鸭种养模式(简称RD)。结果表明：稻鸭共作种养模式下，鸭子具有为水稻控螺、除草、松土、供肥、改善稻田生态环境的作用，稻田又能为鸭子提供水源和适量食物及休息场所。该模式下能生产出无公害、绿色、优质的稻米，并且鸭子具有明显的省肥、省药、省工、节本、增收和保护环境的作用。
To explore the dynamics of different types of weeds and Pomacea canaliculata in paddy fields un-der the rice-duck co-cropping mode, the prevention and control mechanism of weeds and pests in the rice-duck co-cropping mode was clarified, and the economic benefits of the rice-duck co-cultivation mode were analyzed. In April 2018, an experimental study was conducted at the Liuyang Practice Base of Hunan Agricultural University, and the experiments set up: planting mode of pesticide, herbicide and molluscicide (CK); pesticide, herbicide, molluscicide and duck breeding mode (DK); no pesticide, no herbicide, no molluscicide, and duck breeding mode (RD). The results show that ducks can control Pomacea canaliculata, weed, loosen soil, supply fertilizer and improve the ecological environment of paddy field, and paddy field can provide water source, proper food and rest place for ducks. Under this mode, pollution-free, green and high-quality rice and ducks can be produced, which has obvious effects of saving fertilizer, medicine, labor, cost, income and envi-ronmental protection.
