Acta Agriculturae Boreali-Sinica

ACTA AGRICULTURAE BOREALI-SINICA ›› 2000, Vol. 15 ›› Issue (4): 92-97. doi: 10.3321/j.issn:1000-7091.2000.04.018

Special Issue: Wheat； Multigrain crops；

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Preliminary Study on Eco-economic Threshold Model for Chenopodium album L.and Avena fatua L. in Spring Wheat Field

BAI Quan jiang1, CHENG Yu chen1, ZHAO Cun cai1, LI Zi qin1, ZHANG Li jun2, ZHAO Wen xian3   

  1. 1. Plant Protection Institute, Inner Mongolia Academy of Agricultural Sciences, Huhhot Inner Mongolia 010031, China;
    2. Horticulture Institute, Inner Mongolia Academy of Agricultural Sciences, Huhhot Inner Mongolia 010015, China;
    3. School of Yimeng, Agriculture and Animal Sciences, Dalateqi 014300, China
  • Published:2000-12-28

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Abstract: The function equations between the different density of Chenopodium album L. , Avena fatua L. and wheat spica, spikelet, spica gains, thousand kernel weight and yield reduction rate were established by studying the effect of Chenopodium album L. , Avena fatua L. density on wheat yield factors, and their eco-economic threshold model. The result showed Chenopodium album L. and Avena fatua L. should be controled using 72% 2, 4-D butylate and 10% Puma super when their density in field were up to 1.45-1.83 plants/m2, 7.15-8.60 plants/m2 respectively.

Key words: Wheat-field, Chenopodium album L., Avena fatua L., Eco-economic threshold, Control index

Cite this article

BAI Quan jiang, CHENG Yu chen, ZHAO Cun cai, LI Zi qin, ZHANG Li jun, ZHAO Wen xian. Preliminary Study on Eco-economic Threshold Model for Chenopodium album L.and Avena fatua L. in Spring Wheat Field[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2000, 15(4): 92-97. doi: 10.3321/j.issn:1000-7091.2000.04.018.

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