垄作覆盖对夏玉米产量及生长相关生理参数的影响  

Influence of Sowing on Ridges and Strew Mulching System on Summer Corn Yield and Growth Related Physiological Parameters

作　　者：王同朝[1] 卫丽[1] 王燕[1] 王俊忠[2] 

机构地区：[1]河南农业大学,郑州450002 [2]河南省农业厅农业技术推广中心,郑州450002

出　　处：《玉米科学》2007年第4期109-113,共5页Journal of Maize Sciences

基　　金：华北平原河南省保护性耕作技术集成示范(2004BA520A14C11);旱作区小麦夏玉米节水抗灾培肥一体化技术集成与示范(2004BA520A06-5)

摘　　要：在小麦-玉米一年两熟雨养旱农区,研究垄作、平作、垄作覆盖、平作覆盖4种处理对夏玉米产量及其生长相关生理参数的影响。结果表明,垄作覆盖增加叶面积指数,延缓后期叶片衰老,茎基部伤流量增加,有利于叶片维持较高的∮PSⅡ活性和光化学最大效率(FV/FM),提高耐光抑制力。生育后期FV/FO、FV/FM、∮PSⅡ和qP的日变化呈单峰曲线,且垄作覆盖>平作覆盖>垄作>平作。垄作覆盖促进光合产物积累与合理分配,提高灌浆强度,延长灌浆时间。平作覆盖、垄作、垄作覆盖处理分别比对照增产14.11%、12.15%和22.38%。In regions of wheat-summer corn planting system under natural condition, the experiment showed the summer corn cultivation of combination sowing on ridges with mulching markedly increased leaf area index, prolonged late leaf senescence, improved the amount of stem base of bleeding sap, primarily discovered higher ∮ PS II activity and higher qP, and strengthen the capability of light stress. During the late growth period, Fv/Fo, Fv/FM, ∮ PS Ⅱ和 qP presented one summit of daily change curve, and their average order value was that sowing on ridges and mulching system 〉 flatting culture and mulching 〉 sowing on ridges system 〉 flatten culture. The treatment also sped up the process of photosynthesis, reasonable contribution, filling stage and velocity. Flatting culture and mulching, sowing on ridges and sowing on ridges with mulching were treated with 14.11%, 12.15% and 22.38% increase in yield.

关 键 词：夏玉米 垄作覆盖 产量 生理参数 

分 类 号：S513.04[农业科学—作物学]