大麦与谷类科学

为研究不同稻麦品种周年组合对生产安全及产量的影响，筛选适合淮北(淮河以北)片区(江苏响水)周年种植、高产稳产的稻麦品种，选用7个半冬性小麦品种和9个中熟中粳水稻品种为材料，开展稻麦周年生产品种试验。结果表明：稻麦品种周年组合种植，水稻品种选择对实现稻麦周年产量1 200 kg/667 m²以上影响大，9个参试水稻品种中的南粳5718、圣稻22和连粳22与7个参试小麦品种中的淮麦33、淮麦35周年组合种植时，全年2季总产量均稳定超过1 200 kg/667 m²。故建议前茬小麦品种选择推广半冬性的淮麦33、淮麦35，后茬水稻品种选择中熟中粳南粳5718、圣稻22和连粳22。

The objectives of this study were to investigate the effects of different variety combinations of the annual wheat-rice cropping system on the production security and total yield of wheat and rice, and to select the combinations of rice and wheat varieties suitable for annual planting in Xiangshui County of Huaibei area, Jiangsu Province, which can ensure grain production security and achieve high and stable yields. Nine medium-mature, medium geng rice varieties and seven semi-winter wheat varieties were used as materials for the experiment. These rice or wheat varieties were sown under the same conditions and at the same time. The results showed that the rice variety selection had a significant impact on attaining the annual yield of rice and wheat over 1 200 kg/667 m². When Nangeng5718, Shengdao 22, and Liangeng 22 from the nine tested rice varieties were planted in combination with Huaimai 33 and Huaimai 35from the seven tested wheat varieties, the annual total yields of rice and wheat were stable and higher than 1 200 kg/667 m². Therefore,the semi-winter wheat varieties Huaimai 33 and Huaimai 35 should be selected and promoted as the previous crop, while the medium-mature, medium geng rice varieties Nangeng 5718, Shengdao 22, and Liangeng 22 should be selected as the subsequent crop.