Potential of some soil amendments in reducing leaching of fipronil to groundwater

Abstract

The efficacy of different soil amendments in reducing the leaching of fipronil to groundwater was examined in soil columns under laboratory conditions. The polyvinyl chloride columns were sequentially filled with soils of different depths simulating natural conditions. Different soil amendments namely fresh cow dung (FCD) slurry @ 0.5 t ha -1 , farmyard manure @ 5.0 t ha -1 , press mud compost @ 5.0 t ha -1 , cereal straw @ 5.0 t ha -1 and gypsum @ 5.0 t ha -1 were applied on the top soil. The application of farmyard manure, cereal straw and gypsum decreased the soil pH, and except FCD, all the amendments increased the electrical conductivity of the soil. Among different soil amendments, press mud compost and cereal straw were the most effective in reducing leaching of the fipronil to groundwater. Fipronil residues in soil columns after leaching indicated that all soil amendments effectively increased the retention of fipronil in soil; however, press mud compost and cereal straw also dissipated higher amount of fipronil. The results also revealed a higher retention of applied fipronil with lower degradation and leaching under application of 0.5 t FCD ha -1 as organic amendment in soil in comparison with the unamended soil.

A Comprehensive Review on the Effect of Sugarcane Trash Ash on the Sorption, Degradation and Leaching of Atrazine and Fipronil in Agricultural Soils

“…Pesticide quickly dissipates at soil surface within 15 days after treatment and no leaching was observed beyond 30 cm depth. Joshi et al [80] reported that press mud compost and cereal straw were found to be most efficient in decreasing leaching of the fipronil by enhancing its degradation. Pesticides have played a major role in enhancing crop production and crop productivity by controlling diseases and pests.…”

Investigating the structural, electronic, magnetic, thermodynamic, and optical properties of rare earth-based halide perovskites CsMCl3 (M = U, Np, Pu)

“…In recent times spintronic technology has become a focal point for worldwide researchers because it uses both the fundamental degree of freedom of electron and charge [1,2]. It precedes conventional electronic devices because of less power consumption, long-term storage, and high processing speed [3].…”

Evaluation of Optimum Conditions for Soil Termiticides Storage in Tropical Climate

“…For decades, the application of termiticides is the common practice in termite control management. However, excessive and prolonged use of termiticides as the control measure has led to staggering impacts on humans, fishes, livestock and wildlife animals (Floate et al, 2005;Joshi et al, 2016;Petroff 2010;Phung et al, 2012). The adverse effect of overly used termiticides further creates widespread worries among environmentalists.…”