摘要
马铃薯、玉米套作是西南山区主要的种植模式,但是各地的厢宽和行比很不规范,导致玉米和马铃薯竞争关系明显,限制了产量的进一步提高。为获得综合增产的最优厢宽行比及马铃薯群体控制技术,研究了马铃薯、玉米套作模式下田间配置及烯效唑对马铃薯产量的影响。试验结果表明:1.5 m开厢,马铃薯和玉米行比2:2的总产量最高,与当地1.5 m开厢,马铃薯和玉米行比1:2相比,马铃薯增产64.3%,玉米减产6.3%,全年总增产粮食14.3%,增收20.4%;盛花期马铃薯叶面喷施15 mg·kg-1烯效唑能增产21.4%,增产的直接原因是增加了马铃薯大薯率和大薯产量。大幅增产的合理使用浓度为10～15 mg·kg-1,可作为高密度、高肥水条件马铃薯高产的重要技术措施。
In order to obtain the optimum plant patterns and technologies of group control for getting high yield,the experiments of planting methods of potatoes and corns,and the impacts of uniconazole on potato yield under the relay intercropping were studied.The results showed that compared with the row-ratio of 1:2 in 1.5 m ridge(CK),using the row-ratio of 2 : 2 in potato and maize with 1.5 m ridge,potato yield increased 64.3%,corn yield decreased 6.3%,the total annual yield increased 14.3%,and the income increase...
出处
《中国马铃薯》
2010年第2期80-83,共4页
Chinese Potato Journal
基金
四川省育种攻关配套项目(2006YZGG-28)
四川省天府英才培养项目
四川省教育厅青年基金
关键词
马铃薯
玉米
套作
田间配置
烯效唑
potato
corn
relay intercropping
plant pattern
uniconazole
