Study On The Investigate And Chemistry Controlling Of Malignant Weed In Seed Product Field Of Agropyron Mongolicum Keng

Mongolian Agropyron (Agropyron mongolicum Keng) For the perennial grass Agropyron an herb, Since 2001, Xilin Gol League in the Blue Flag for seed propagation is the process found that the spread of perennial weeds seeds, serious, not only affects plant growth and development, resulting in decreased seed yield and quality, and weed control in field management makes increases large, resulting in increased production costs.Adopted in 2006 was "W" 9 point sampling method weed survey and found that farmers on the 1st of Mongolian Agropyron seeds flowering weeds, 29 species of weeds advantage for the four kinds of wild P. miliaceum, Setaria viridis, Setaria gold Hetian bindweed. Hazard index of 66.2,16,15.1,14.7;Through a preliminary survey to find out the advantages of four kinds of weed emergence and growth of the law of state of the soil seed bank. In addition, for the six kinds of chemical weeding weeding spraying the field test results show that Mongolia Mongolia No.1 Agropyron 2000ml/hm2 bloom spraying head net can take control wild P. miliaceum,Setaria viridis, Setaria Kim,750ml/hm22.4 -D butyl Convolvulus arvensis can control. In addition, there were two kinds of chemical herbicide weed before sowing soil treatment test results show that Mongolia Mongolia No.1 Agropyron spraying flowering period 1500ml/hm2 Trifluralin can control wild P. miliaceum, Setaria viridis, Setaria Gold Hetian bindweed,300ml/hm2 fruit Seoul can control Convolvulus arvensis.