马铃薯/玉米2:1行比套作不同模式对马铃薯产量及光合性能的影响  

Intercropped Potato and Maize with the Row Ratio of Two to One: Effect of Different Patterns on Potato Yield and Photosynthetic Characteristics

作　　者：舒进康 陈莉萍[2] 赵里红 李仕杰[2] 赵勇[2] 王季春[2] 

机构地区：[1]巫溪县农业技术推广中心,重庆405800 [2]西南大学农学与生物科技学院,重庆400716

出　　处：《中国农学通报》2016年第18期43-46,共4页Chinese Agricultural Science Bulletin

基　　金：国家重点基础研究发展计划(973计划)项目"作物多样性群落结构对产量和品质的影响极其机理"(2011CB100402)

摘　　要：为探索马铃薯/玉米2:1行比套作下,马铃薯高产的最佳空间配置模式,在带宽、行距、间距、窝距等空间因子不同配置的4种马铃薯/玉米2:1行比套作模式下,研究不同模式下马铃薯的产量及其光合性能指标变化。结果表明,带宽为120 cm模式的鲜薯产量和商品薯率、叶面积指数(LAI)、叶绿素含量(SPAD)及光合速率(Pn)、蒸腾速率(Tr)、气孔导度(Gs)均极显著或显著高于其他模式,表明2:1行比下以间距、马铃薯小行距、窝距均为40 cm的中等距离空间配置更有利于光合作用,效果最佳,宜在生产中推广应用。In order to explore the best allocation of field structure for high potato yield in intercropped potatoand maize with the row ratio of two to one, the authors carried out a field experiment with four patternsincluding the factors of bandwidth, interval, row and plant spacing. Results showed that under the pattern ofthe bandwidth of 120 cm, the interval of 40 cm, and both the row and plant spacing of 40 cm, the yield of freshpotatoes, marketable tuber percentage, leaf area index（LAI）, photosynthetic rate（Pn）, transpiration rate（Tr）and stomatal conductance（Gs） were extremely significant or significantly higher than those under the otherthree patterns. Thus, we concluded that this allocation made better use of photosynthetically active radiationand was the optimal pattern, and suggested that it should be generalized in agricultural production.

关 键 词：马铃薯 玉米 套作 不同模式 光合指标 产量 

分 类 号：S318[农业科学—作物栽培与耕作技术]