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桔园使用“草甘膦”,进行化学除草,目前正在我省桔区推广使用。经我县推广试验表明,桔园杂草经草甘膦处理的除草率在98％以上。对于一年生杂草如马唐、狗尾草,多年生的白茅等,即使是低温度的处理(200倍),防除效果也很显著,尤其是多年生恶性杂草白茅,经草甘膦处理后,其地下茎逐渐霉烂,从而达到根除的效果。对防除多年生杂草应增加使用浓度和次数,提高到75倍以上。连续喷用二次方有杀除效果。鉴于桔园杂草绝大多数是马唐、狗尾草等一年生杂草,我们认为在大面积使用时,草甘膦的浓度在200倍左右,每亩用药量在0.75～1斤即可。少量的多年生杂草可以在喷药后第二
Orange Park use “glyphosate” for chemical weeding, orange province is currently promoting the use of. Popularization and testing in our county shows that weeding by the glyphosate treatment of weed garden is over 98%. For annual weeds such as crabgrass, Setaria viridis, perennial P. solanacearum, even at low temperature treatment (200 times), the control effect is very significant, especially the perennial weed weeds Imperata cylindrica, after treatment with glyphosate, the underground stems gradually Rotten, so as to achieve the eradication effect. To control perennial weeds should increase the use of concentration and frequency, increased to more than 75 times. Continuous spray with the second kill kill effect. In view of the vast majority of orange weed garden crabgrass, Setaria and other annual weeds, we believe that in large areas when used, glyphosate concentration of 200 times or so, the dosage of 0.75 to 1 kg per mu can be. A small amount of perennial weeds can be sprayed after the second