在广西百色市田东县桂七芒果基地进行了30%草甘膦水剂和20%百草枯水剂2种常用除草剂对芒果园杂草的防效试验，结果表明:30%草甘膦水剂和20%百草枯水剂各用量处理对芒果园中杂草有较好的防效，30%草甘膦水剂用量为6 000～9 000 g/hm2的处理，药后30 d对禾本科杂草、阔叶杂草的株防效和鲜重防效均达到了95%以上。20%百草枯水剂各处理在药后3 d时，对禾本科杂草和阔叶杂草的株防效均达90%以上，药后7 d时除处理D对禾本科杂草的鲜重防效为93.91%外，其余处理的株防效和鲜重防效均达到了95%以上。30%草甘膦水剂在用量6 000 g/hm2以下对芒果树安全，20%百草枯水剂用量在4 500 g/hm2以下对芒果树安全。

Use 30% glyphosate aqueous solution and 20% paraquat aqueous solution to control mango orchard weeds in Guangxi province， Baise city Tiandong county Guiqi mango base. The result shows that two agents each treatment control mango orchard weed with good effect. After 30 days of spraying， 30% glyphosate aqueous solution's single and fresh weight control effect on gramineous weeds and broadleaf weeds both above 95%； after 3 days of spraying， 20% paraquat aqueous solution control effect on gramineous weeds and broadleaf weeds over 90%， after 7 days of spraying every treatment's single and fresh weigh control effect above 95% besides treatment D is 93.91%. 30% glyphosate aqueous solution under 6 000 g/hm2 and 20% paraquat aqueous solution under 4 500 g/hm2 both safe to mango tree.

S667.7；S482.4