The result was that the adoption of Atrazine,Acetochlor-atrazine was safe to Yedan 12,the adoption of Metolachlor was safe to Zhengdan 14 and the adoption of Acetochlor was safe to Yedan 19.

• 结果表明:掖单12对莠去津、乙.；莠安全；郑单14对都尔安全；掖单19对乙草胺安全。