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玉米是在全球广泛种植的作物,玉米田除草剂销售额总计为2.5亿美元。用于控制玉米田阔叶杂草的除草剂是最主要的,2,4-D和三嗪类是这方面的主导品种;异丙甲草胺和甲草胺是控制禾本科杂草的最主要品种。新近开发的品种,如furilazole(1997)、氯吡嘧磺隆(1995)和甲氧咪草烟(1997),预期将对玉米田除草剂产生重大影响。开发玉米田除草剂面临的挑战在于:用新的有价格竞争力的化合物代替现已广泛使用的品种;开发新品种以治理抗性杂草;改进芽后品种的使用范围和功效。
Corn is a widely grown crop in the world and corn herbicide sales total $ 250 million. The herbicides used to control broad-leaved weeds in maize fields are the most important, with 2,4-D and triazines being the dominant species in this area; metolachlor and alachlor are the most effective sources of grass weeds The main varieties. Newly developed varieties, such as furilazole (1997), trimethoprim (1995) and imazamox (1997), are expected to have a significant impact on herbicide in corn fields. The challenges in developing corn field herbicides lie in replacing the now widely used varieties with new, competitively priced compounds; developing new varieties to control resistant weeds; and improving the range and efficacy of post-emergence varieties.