晚收迟播对稻麦周年产量及经济效益的影响

为给长江下游地区家庭农场稻麦高产高效栽培提供参考,选用江苏省淮南麦区6个主栽小麦品种扬麦16、扬麦18、扬麦20、镇麦9号、宁麦14和镇麦168和4个主栽水稻品种镇稻14号、淮稻5号、镇稻16号、镇稻18号为材料,设置11月1日、11月15日和11月29日3个小麦播期处理,探讨了晚收迟播对稻麦周年产量及经济效益的影响。结果表明,小麦播期为11月1日和11月15日时,稻麦周年产量较高,其中在11月15日播种时镇稻18、扬麦18周年粮食产量最高,达到1 5048kg·hm-2。小麦在11月15日和11月29日播种时稻麦周年经济效益明显高于11月1日播种,每公顷可增收1 000多元,其中在11月29日播种时镇稻18、镇麦9号周年经济收益最高,达到30 897.04元·hm-2。

Analysis on the Effects of Late Harvest and Planting on Year-round Yield and Economic Benefits of Rice and Wheat

In order to explore the effects of late harvest and planting on year-round yield and economic benefits of rice and wheat in the family farm in the Yangtze river downstream. Six wheat varieties (Yangmai 16, Yangmai 18, Yangmai 20, Zhenmai 9, Ningmai 14 and Zhenmai 168 ) and four rice varieties (Zhendao 14, Huaidao 5, Zhendao16 and Zhendao 18) were used as the experiment materials with three sowing dates of November 1 (T1), November 15 (T2) and November 29 (T3) for winter wheat. The results revealed that the annual production of rice and wheat could be increased obviously under the condition of T1 and T2, but T1 could not increase the economic benefits. Under the condition T2, the combination of Zhendao 18 and Yangmai 18 could obtain the highest yield (1 5048 kg·hm^-2). Under the conditions of T2 and T3, the year-round economic benefits were obviously higher than that of T1. The farmers could get the income more than 1 000 yuan·hm^-2. And the combination of Zhendao 18 and Zhenmai 9 in T3 could gain the highest economic benefits (30 897.04 yuan·hm^-2).