ACTA AGRICULTURAE BOREALI-SINICA ›› 1993, Vol. 8 ›› Issue (1): 107-112. doi: 10.3321/j.issn:1000-7091.1993.01.021

Special Issue: Wheat Rice

Previous Articles     Next Articles

A Preliminary Study on the Yield Loss of Wheat Caused by Sclerochloa kengiana and the Eco- economic Threshold of Weed Control

Shang Jiayan, Liu Yuanrong, Li Fengmin, Wang Jiankang   

  1. Plant Protection Institute, Henan Academy of Agricultural Sciences, Zhengzhou
  • Received:1991-12-11 Published:1993-03-28

Abstract: Experiments were corried out during 1990 and 1991.The correlation between density, dry weight of Sclerochloa kengiana and yield economic properties of wheat were studied,and some regression models were made, Four control methods were used:artificial control, 25% chlorotoluron 0.3kg mu, 25% chlcrctoluicn10% thiobencarb (0.25+0.25) kg/mu,and 25% chlorotoluron+50%devrinol (0.25+0.075) kg/mu.The Eco-economic thresholds of controlling schercchlca Fengiana corresponding to the four methods of weed control are 30.56 plants/m2, 18.56 plants/m2, 20 plants/m2, 21.93 plants/2, respectively.

Key words: Selerochloa hengiana, Wheat, Yield loss, Eco-economic threshold

Cite this article

Shang Jiayan, Liu Yuanrong, Li Fengmin, Wang Jiankang. A Preliminary Study on the Yield Loss of Wheat Caused by Sclerochloa kengiana and the Eco- economic Threshold of Weed Control[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1993, 8(1): 107-112. doi: 10.3321/j.issn:1000-7091.1993.01.021.

share this article