我市在年积温5300℃等温线以北的绍虞平原稻区,三熟制连作晚稻种植以晚粳类型占优势,冬作则以大麦为主。由于晚粳稻收割适期不明确,所以收获时间较长,相应地推迟和延长了后作大麦的播种期,造成大麦产量不稳不高,从而阻碍了全年三熟产量进一步提高。为明确前作晚粳稻收割与后作大麦播种双佳适期,我们进行了晚粳稻收割期与大麦播种期联因试验。现将结果报道如下,供生产上参考。试验条件与设计试验设在本所麦、稻、稻三熟制田块,以中熟晚粳秀水11和偏春性大麦浙农大3号为 In the city of Shaoyu plain in the north of the area where annual accumulated temperature is 5300 ℃, the type of late japonica rice is dominated by the three-cropping continuous cropping in late rice and barley in winter. Due to the unclear maturity of late japonica rice, the harvesting time was longer, correspondingly postponed and prolonged the sowing time of post-made barley, which resulted in the unstable yield of barley and hindered the further increase of whole-year tri-crop yield. In order to clarify the previous double cropping of late japonica rice and sowing date, we carried out a joint trial of late japonica rice harvest and seeding date. The results are reported below, for the production of reference. Test conditions and design tests are located in the three fields of wheat, rice and rice fields, medium maturing rice Xiushui 11 and spring barley Zhejiang Agricultural University No. 3