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Impact of Some Insecticides Application on Soil Respiration in an Alluvial Soil

机译:施用某些杀虫剂对冲积土壤中土壤呼吸的影响

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摘要

The aim of the study is to assess the effect of three different insecticides viz. Triazophos Carbaryl, Neemarin (Azadiractin formulation) belonging to different groups namely Organophosphate, Carbamate and Botanical insecticide on basal and substrate induced soil respiration under controlled laboratory conditions in an alluvial soil. The insecticides were applied to the soil at field recommended dose (FR) i,e. 0.1327mg/kg for Triazophos 0.8296 mg/kg for Carbaryl, 0.0021 mg/kg for Azadiractin formulations and 10 fold the recommended dose (10 FR).The incubation study was carried out at 60% water holding capacity of the soil at 30°C. The result clearly shows that at FR dose Triazophos and Azadiractin formulations has short term inhibitory effect on basal and substrate induced respiration while Carbaryl has short term stimulatory effect. At 10 FR dose the extent of effects in comparison of FR dose were much more distinct.
机译:该研究的目的是评估三种不同杀虫剂的作用。在受控的实验室条件下,在受控的冲积土壤中,基氮和底物上的三唑磷农药十八碳烯,Neemarin(阿扎地辛素制剂)属于不同的组,即有机磷酸酯,氨基甲酸酯和植物杀虫剂。将杀虫剂以田间推荐剂量(FR)即土壤施用于土壤。三唑磷的含量为0.1327mg / kg,西维因的为0.8296 mg / kg,阿地拉定的制剂为0.0021 mg / kg,推荐剂量(10 FR)的10倍。在30°C的土壤持水量为60%的条件下进行了温育研究。结果清楚地表明,在FR剂量下,三唑磷和Azadiractin制剂对基础和底物诱导的呼吸具有短期抑制作用,而Carbaryl具有短期刺激作用。在10 FR剂量下,与FR剂量相比作用的程度要明显得多。

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