In order to study the dissipation of propineb in / on onion, a field trial was conducted at Vegetable Research Station, Anand Agricultural University, Anand. After 44 days of transplanting, foliar application of the fungicide was made thrice at 10 days interval @ 1225 and 2450 g ai ha~(-1). The fresh samples comprising green leaves and immature bulb were collected at 0 (2 h), 1,3,5,7,10 and 15 days after the third spray. The initial deposits were 1.61 and 4.03 μg g~(-1) of propineb (on CS2 basis), which persisted upto the 7th and 10th day at lower and higher dose of application, respectively. The half-life values of propineb ranged from 2.3 to 2.4 days. No MRL for propineb is fixed by PFA in India. Considering the MRL of 4.0 μg CS2 g~(-1) prescribed by Australia, the recommended dose can be considered safe even on the day of application.
展开▼
机译：为了研究洋葱中紫杉醇的消散，在阿南德阿纳德农业大学蔬菜研究站进行了田间试验。移植44天后，每隔10天以1225和2450 g ai ha〜（-1）的间隔进行三次杀真菌剂的叶面施药。在第三次喷雾后0（2小时），1、3、5、7、10和15天收集包括绿叶和未成熟鳞茎的新鲜样品。最初的沉积物为1.61和4.03μgg〜（-1）的propineb（以CS2为基准），分别以较低和较高的剂量持续到第7天和第10天。 Proineb的半衰期值为2.3至2.4天。在印度，PFA并没有为propineb确定最大残留限量。考虑到澳大利亚规定的最大残留限量为4.0μgCS2 g〜（-1），即使在应用当天，推荐剂量也可以被认为是安全的。
展开▼
