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《Journal of Anhui Agricultural Sciences》 2005-12
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Study on Biological Activation of Barnyard-grass and Security of Rice

CHEN Jun et al(Hunan Agricultural University,Changsha,Hunan 412108)  
The effect of biological activation of barnyard-grass on security of the rice at 1.5-leaf stage were studied when three Amides Herbicides of Butachlor,Metolachlor and Acetochlor were combined with urea through potted experiment and analysis in laboratory in the paper,respectively.The result showed that the activity of barnyard-grass inhibition enhanced notably when they were combined with urea.The mixtures of co-toxicity coefficient rose to 146.1,116.7 and 132.6,respectively.In addition,this effect increased with the dosage of three Amides Herbicides.Further more,urea can strengthened their security on the rice at 1.5-leaf stage.Its activity of rice inhibition growth of the co-toxicity coefficient was 79.1,87.5 and 67.2,respectively.
【Fund】: 国家粮食丰产计划资金项目赞助(2004BA520A06-11)
【CateGory Index】: S482.4
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