The digestion regularity of MCPA, ametryn and dim＇on which were the active ingredients of 55% MCPA · ametryn · diuron WP in sugarcane leaves and soil of sugarcane plantation collected from Changsha of Hunan...The digestion regularity of MCPA, ametryn and dim＇on which were the active ingredients of 55% MCPA · ametryn · diuron WP in sugarcane leaves and soil of sugarcane plantation collected from Changsha of Hunan Province and Haikou of Hainan Province in 2009 and 2010were studied in the paper, and the results showed that these three agents had rapid digestion. The final residue test showed that beth MCPA and ametryn had not been detected in the study; the average resi- dues of diuron in the soil collected from Hunan Province in 2009 and 2010 were 0.018 and 0.015 mg/kg, respectively which were slightly larger than the critical value of 0. 013mg,/kg; diuron had no been detected in other treatments.展开更多
为探讨粤糖系列甘蔗品种对除草剂25%敌草隆应用的安全性,通过盆栽试验测定了3个粤糖系列常栽甘蔗品种及新台糖22号对25%敌草隆的敏感性。结果显示,总生物量更能表现出不同甘蔗品种对敌草隆不同剂量、不同喷施期的敏感性差异;通过总生物...为探讨粤糖系列甘蔗品种对除草剂25%敌草隆应用的安全性,通过盆栽试验测定了3个粤糖系列常栽甘蔗品种及新台糖22号对25%敌草隆的敏感性。结果显示,总生物量更能表现出不同甘蔗品种对敌草隆不同剂量、不同喷施期的敏感性差异;通过总生物量的测定,YT00/236对敌草隆较敏感,ROC22较耐药,YT93/159、YT55对敌草隆的敏感性介于其中;在4800 g a.i/hm2剂量处理下,YT00/236与ROC22敏感性差异极显著,YT93/159、YT55虽有差异但不明显,表明甘蔗对敌草隆的敏感性与品种有关,从某品种的敏感性不能推断该品系所有品种的敏感性都是高或低。因此要明确甘蔗品种对敌草隆的敏感性,必须进行喷药时期、喷药量的试验测定。展开更多
对60%环.敌可湿性粉剂不同剂量、不同施药时期、不同施药方式进行对比试验,探讨该除草剂在甘蔗田使用的安全性。结果表明,从施药时期看,以甘蔗生长2~4叶期施药比芽前施药或6~8叶期施药较安全;从施药方式看,以相对定向喷雾比直接封顶喷...对60%环.敌可湿性粉剂不同剂量、不同施药时期、不同施药方式进行对比试验,探讨该除草剂在甘蔗田使用的安全性。结果表明,从施药时期看,以甘蔗生长2~4叶期施药比芽前施药或6~8叶期施药较安全;从施药方式看,以相对定向喷雾比直接封顶喷雾安全;从剂量看,以900 g a.i./hm^2造成的药害轻且容易恢复,而2700 g a.i./hm^2不仅药害重且不易恢复,1800 g a.i./hm^2则介于上述两者之间。展开更多
基金Supported by Scientific and Technological Projects of Nanning Municipal Science and Technology Bureau(20132308)
文摘The digestion regularity of MCPA, ametryn and dim＇on which were the active ingredients of 55% MCPA · ametryn · diuron WP in sugarcane leaves and soil of sugarcane plantation collected from Changsha of Hunan Province and Haikou of Hainan Province in 2009 and 2010were studied in the paper, and the results showed that these three agents had rapid digestion. The final residue test showed that beth MCPA and ametryn had not been detected in the study; the average resi- dues of diuron in the soil collected from Hunan Province in 2009 and 2010 were 0.018 and 0.015 mg/kg, respectively which were slightly larger than the critical value of 0. 013mg,/kg; diuron had no been detected in other treatments.
文摘为探讨粤糖系列甘蔗品种对除草剂25%敌草隆应用的安全性,通过盆栽试验测定了3个粤糖系列常栽甘蔗品种及新台糖22号对25%敌草隆的敏感性。结果显示,总生物量更能表现出不同甘蔗品种对敌草隆不同剂量、不同喷施期的敏感性差异;通过总生物量的测定,YT00/236对敌草隆较敏感,ROC22较耐药,YT93/159、YT55对敌草隆的敏感性介于其中;在4800 g a.i/hm2剂量处理下,YT00/236与ROC22敏感性差异极显著,YT93/159、YT55虽有差异但不明显,表明甘蔗对敌草隆的敏感性与品种有关,从某品种的敏感性不能推断该品系所有品种的敏感性都是高或低。因此要明确甘蔗品种对敌草隆的敏感性,必须进行喷药时期、喷药量的试验测定。
文摘对60%环.敌可湿性粉剂不同剂量、不同施药时期、不同施药方式进行对比试验,探讨该除草剂在甘蔗田使用的安全性。结果表明,从施药时期看,以甘蔗生长2~4叶期施药比芽前施药或6~8叶期施药较安全;从施药方式看,以相对定向喷雾比直接封顶喷雾安全;从剂量看,以900 g a.i./hm^2造成的药害轻且容易恢复,而2700 g a.i./hm^2不仅药害重且不易恢复,1800 g a.i./hm^2则介于上述两者之间。
