| 高海涛，王育红，孟战赢，席玲玲，段国辉，温红霞.小麦-玉米双晚种植对周年产量和资源利用的影响[J].麦类作物学报,2012,32(6):1102 |
| 小麦-玉米双晚种植对周年产量和资源利用的影响 |
| Effects of Later Sowing of Winter Wheat and Later Harvest of Summer Maize Cropping System on Yield and Resources Use Efficiency of Whole-year |
| |
| DOI：10.7606/j.issn.1009-1041.2012.06.016 |
| 中文关键词: 冬小麦 夏玉米 双晚 周年产量 资源利用率 |
| 英文关键词:Winter wheat Summer maize Double later-cropping system Yield Natural resource use efficiency |
| 基金项目:国家现代农业(小麦)产业体系项目(CARS-3-2-36)；河南省现代农业(小麦)产业体系项目(S2010-10-02)；国家科技支撑项目(2011BAD07B01-6)；国家公益性行业专项(200903007)。 |
|
| 摘要点击次数: 1428 |
| 全文下载次数: 1347 |
| 中文摘要: |
| 为了了解黄淮海地区冬小麦晚播、夏玉米晚收“双晚”种植模式的增产效应，选用 3 个半冬性冬小麦品种和3个中晚熟夏玉米品种为材料,研究了冬小麦播期、夏玉米收获期对周年产量及水温资源分配利用的影响。结果表明，适期晚播冬小麦增产0.98%~8.17%，晚收夏玉米产量提高1 050.2~1 459.4 kg·hm-2,“双晚”种植模式周年最高产量达 19 409.6 kg·hm -2,增幅16.64%。冬小麦适期晚播使降水生产效率和积温生产效率分别提高7.06%~14.68%和5.95%~13.49%，夏玉米晚收分别提高1.22%~4.44%和2.48%~5.50%。 说明“双晚”种植模式能有效利用水、温资源，起到增产作用。 |
| 英文摘要: |
| The winter wheat-summer maize rotation is the main cropping system in North China. In recent years,with continuous increase of air temperature,the double later-cropping system (later sowing of winter wheat and later harvest of summer maize) has of importance for whole-year high yield in this area. To quantitatively analyze the whole-year yield and the effect of “double later cropping system”,the effects of sowing date of winter wheat and harvest date of summer maize on whole-year yield and natural resource (rain and accumulated temperature) used efficiency were studied with three semi-winter wheat varieties and three middle-late maturing summer maize varieties. The results showed that the highest whole-year yield was 19 409.6 kg·hm-2 in the double later-cropping system with an increase of 16% than that of the control. The yield of three winter wheat varieties increased with optimum period of later sowing. At the same time,the yield of three summer maize varieties was significantly (P<0.05) increased by 1 050.2 ~1 459.4 kg·hm-2 than that of the control. The rainfall and accumulated temperature use efficiency were significantly (P<0.05) increased by 7.06%~14.68% and 5.95%~13.49%,respectively with optimum period of later sowing in the wheat cropping season than that of the control. With the delayed harvest period of summer maize,the rainfall and accumulated temperature use efficiency were increased by 1.22%~4.44% and 2.48%~5.50%,respectively. The results imply that the double later-cropping system has good performances on grain yield and resource use efficiency. |
|
查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
基本信息
