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首页> 外文期刊>Indian Journal of Weed Science >Persistence of sulfosulfuron applied in wheat on succeeding crop of sorghum.
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Persistence of sulfosulfuron applied in wheat on succeeding crop of sorghum.

机译：在高粱的后续作物上施用小麦中的硫磺隆的持久性。

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Field experiment was conducted during 2003 and 2004 in the Research Area of Agronomy Department, CCS Haryana Agricultural University, Hisar to study the effect of irrigation frequency on residual behaviour of sulfosulfuron applied in wheat on succeeding sorghum crop grown in rotation. Residual effect of sulfosulfuron was assessed by conducting bioassay studies on sorghum in a split plot design with three irrigation levels (3, 4 and 5) in the main plots and weed control treatments (sulfosulfuron 25 and 50 g/ha, weedy and weed free) in the sub-plots. After harvest of wheat, sorghum crop was planted after slight disking without disturbing the original layout. Sulfosulfuron applied in wheat was found to persist even after 150 days after its application in wheat and its residues in the soil medium caused phytotoxicity to succeeding crop of sorghum. Plant population, plant height, number of leaves per plant, dry shoot and root weight and fodder yield of sorghum were significantly reduced by sulfosulfuron. At 60 DAS, 50 g sulfosulfuron applied in wheat reduced sorghum plant height, dry shoot and root weight per plant by 56, 50, 70 and 57, 51, 71% during the first and second year, respectively, over untreated control. Similarly, fodder yield was reduced by 73 and 75% by 50 g sulfosulfuron compared to untreated control in first and second year of investigation, respectively. The residual effect of sulfosulfuron on sorghum was not found to be mediated by irrigation frequency. Neither the growth parameters nor the fodder yield of sorghum were affected significantly by number of irrigations applied in wheat. Therefore, it can be inferred that increasing irrigation frequencies neither helped in degradation nor in leaching of sulfosulfuron and sorghum should not be planted in rotation with wheat where sulfosulfuron has been applied in wheat.
机译：2003年至2004年，在CCS哈里亚纳邦农业大学农学系Hisar的农学研究区进行了田间试验，研究了灌溉频率对小麦中施用的硫磺隆对轮作后代高粱作物残留行为的影响。磺胺磺隆的残留效果通过在主要田间采用三种灌溉水平（3、4和5）和杂草防治措施（磺胺磺隆25和50 g / ha，杂草和杂草除草）的分块设计中对高粱进行生物分析研究来评估在子图中。收获小麦后，在不打扰原始布局的情况下，稍加耕种即可种植高粱作物。发现硫磺隆在小麦中施用后甚至在150天后仍然存在，并且其土壤培养基中的残留物对高粱的后继作物产生了植物毒性。磺胺磺隆显着降低了高粱的种群，株高，单株叶片数，干梢和根重以及饲料产量。与未处理的对照相比，在60 DAS下，小麦中施用的50 g磺胺磺隆在第一年和第二年分别降低了高粱的株高，干梢和每株根重56％，50％，70％和57％，51％，71％。同样，在调查的第一年和第二年，与未处理的对照组相比，使用50 g磺胺磺隆分别降低了73％和75％的饲料产量。没有发现磺胺磺隆对高粱的残留作用是由灌溉频率介导的。高粱的灌溉参数对小麦的生长参数和饲料产量均无显着影响。因此，可以推断，增加灌溉频率既不有助于硫磺隆和高粱的降解也不能帮助其浸出，因此不应与已在小麦中施用硫磺隆的小麦轮作种植。

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