不同套种模式下冬小麦光合特性及产量研究

doi:10.7668/hbnxb.20191300

摘要/Abstract

摘要： 为探讨不同冬小麦套种花生种植模式下小麦产量的差异，通过田间试验研究了不同冬小麦套种花生种植模式对小麦旗叶光合速率、SPAD值、冠层温度和最大LAI的影响。试验共设4个处理：大垄宽幅垄上覆膜（T1）、大垄宽幅未覆膜（T2）、小垄宽幅未覆膜（T3）、15 cm等行距（T4，对照）。结果表明，T1处理较对照减少了小麦灌浆后期旗叶光合速率，T2、T3处理显著增加了小麦灌浆后期旗叶的光合速率；T1、T2、T3处理小麦孕穗期旗叶SPAD值均高于对照，而开花期和灌浆中期旗叶SPAD值均低于对照；3种套种模式小麦开花前冠层温度显著高于对照，而最大LAI低于对照，其中T1、T2处理与对照差异显著；2017-2018年冬小麦产量变化为：T2 < T1 < T3 < T4，3种套种模式与对照差异均极显著，且3种套种模式间差异极显著。综合考虑小麦、花生产量、种植效益和环境污染等方面，得出小垄宽幅未覆膜冬小麦套种花生种植模式为不同套种模式中最佳种植模式。

关键词: 冬小麦, 套种, 花生, 光合速率, 产量

Abstract: To discuss the difference in wheat yield under different winter wheat interplanting peanut planting modes,field experiment was conducted to study the effects of different winter wheat interplanting peanut planting modes on flag leaf photosynthetic rate,SPAD value,canopy temperature and maximum LAI of wheat. Four treatments were set up in the experiment:large ridge was covered mulching film (T1),large ridge was not covered mulching film (T2),small ridge was not covered mulching film (T3) and 15 cm equal row spacing (T4,control). The results showed that T1 treatment reduced the photosynthetic rate of flag leaves in the later stage of wheat grouting,T2 and T3 treatments significantly increased the photosynthetic rate of flag leaves in the later stage of wheat grouting. SPAD values of flag leaves at booting stage of T1,T2 and T3 treatments were all higher than those of control,while SPAD values of flag leaves at flowering stage and middle grouting stage were lower than that of the control; the canopy temperature before flowering of the three interplanting modes were significantly higher than that of the control,while the maximum LAI was lower than that of the control,the treatment of T1 and T2 were significantly different from that of the control. The change of winter wheat yield was:T2 < T1 < T3 < T4 in 2017-2018,the difference between the three intercropping modes and the control was very significant,and the difference between the three intercropping modes was very significant. Considering the yield of wheat,peanut,planting benefit and environmental pollution,this study concluded that small ridge was not covered mulching film winter wheat interplanting peanut planting mode was the best mode among different interplanting patterns.

Key words: Winter wheat, Intercropping, Peanut, Photosynthetic rate, Yield

中图分类号:

S512.01

董志强, 郑孟静, 吕丽华, 张经廷, 申海平, 姚艳荣, 张丽华, 贾秀领. 不同套种模式下冬小麦光合特性及产量研究[J]. 华北农学报, 2020, 35(S1): 133-137. doi: 10.7668/hbnxb.20191300.

DONG Zhiqiang, ZHENG Mengjing, Lü Lihua, ZHANG Jingting, SHEN Haiping, YAO Yanrong, ZHANG Lihua, JIA Xiuling. Study on Photosynthetic Characteristics and Yield of Winter Wheat under Different Intercropping Modes[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2020, 35(S1): 133-137. doi: 10.7668/hbnxb.20191300.

http://www.hbnxb.net/CN/Y2020/V35/IS1/133

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