Degradation of AM Nitrification Inhibitor in Soil of Subtropical Region

作者：Srivastava Anjana^*; Rawat Kailash Singh; Bhatt Santosh Chandra; Rawat Deepa; Srivastava Prakash Chandra

来源：Communications in Soil Science and Plant Analysis, 2016, 47(17): 1961-1966.

DOI：10.1080/00103624.2016.1208759

• HPLC
• mollisols
• nitrification inhibitor
• QuEChER's

The aim of the study was to evaluate the degradation and persistence of 2-amino 4-chloro 6-methyl pyrimidine (AM), nitrification inhibitor at 1 and 2 mu gg(-1) application rates in soil. The extraction of AM was done by QuEChER's (Quick, Easy. Cheap. Rugged and Safe) method and the quantitative analysis by high-performance liquid chromatography (HPLC). AM decreased with time at both the levels of application with the decline being faster in the beginning up to 7d. Dissipation of AM occurred in a single phase with the persistence data fitting well to the first-order kinetics. Half-lives of AM were determined to be 14.33 and 16.7d at 1 and 2 mu gg(-1) levels application rates. Since AM remains effective for an adequate period of time, it can be used for increasing efficiency of nitrogenous fertilizers in rice-wheat cropping systems as well as a safeguard for controlling environmental pollution in subtropical soils.

• 出版日期2016