Dissipation of nitrapyrin (nitrification inhibitor) in subtropical soils

• Autorzy: Rakhi , Srivastava A. , Srivastava P.C.
• Języki publikacji: EN

Abstrakty

EN

Nitrapyrin (2-chloro-6-(trichloromethyl)pyridine) is a specific nitrification inhibitor, applied in soils for reducing the nitrification process of nitrogenous fertilizers. The overall effect of nitrapyrin is enhancing the efficiency of nitrogenous fertilizers in soils and also controlling environmental pollution in water by preventing nitrate leaching in soils. Dissipation of nitrapyrin was evaluated in subtropical soils at two fortification levels of 2 and 4 µg·g⁻¹. The extraction of nitrapyrin was done by quick, easy, cheap, rugged and safe (QuEChERS) method and quantitative analysis – by high-performance liquid chromatography (HPLC). Nitrapyrin residues declined consistently with time in both types of soils and were not detectable (<0.05 µg·g⁻¹) on the 45th day at 2 µg·g⁻¹ and on the 60th day at 4 µg·g⁻¹ application rate. Dissipation of nitrapyrin occurred in a single phase with the persistence data fitting well to the first-order kinetics. The half-life of nitrapyrin was 9.6 and 9.9 d at 2 µg·g⁻¹ and 16.1 d and 17.3 d at 4 µg·g⁻¹ application rate in both types of soils. The results revealed higher persistence of nitrapyrin at higher concentration (4 µg·g⁻¹) in both types of soils, probably because of high temperature and humidity in subtropical soils.

• Wydawca: -
• Czasopismo: Polish Journal of Soil Science
• Rocznik: 2019
• Tom: 52
• Numer: 2
• Opis fizyczny: p.173-181,fig.,ref.

Twórcy

autor

Rakhi

• Department of Chemistry, College of Basic Sciences and Humanities, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar-263145, India

autor

Srivastava A.

• Department of Chemistry, College of Basic Sciences and Humanities, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar-263145, India

autor

Srivastava P.C.

• Department of Soil Science, College of Basic Sciences and Humanities, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar-263145, India

Bibliografia

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Identyfikatory

DOI

10.17951/pjss/2019.52.2.173