Abstract
Fluopyram is commonly used to control banana leaf spot, anthracnose, and scab in tropical agricultural areas. To explore its behaviour in tropical agricultural environments, dissipation, adsorption, and leaching behaviours of fluopyram in three typical banana planting soils were studied. Also, its dissipation and migration capabilities in different regions and different soil types were evaluated. The results showed that the dissipation of fluopyram was in accordance with the first-order kinetic equation in the three banana soils, but the degradation rates were quite different. The degradation half-lives in the Hainan latosol, Yunnan sandy soil, and Fujian Plain alluvial soil were 46.21 days, 36.48 days and 57.76 days, respectively. Fluopyram also exhibited high adsorption and low leachability in the three soils. The Fujian Plain alluvial soil had the highest adsorption capacity for fluopyram, while fluopyram had the low leachability in the Yunnan sandy soil.
Highlights
Fluopyram is commonly used to control banana leaf spot, anthracnose, and scab in tropical agricultural areas
It is important to study the environmental behaviour of fluopyram in tropical soil to understand its properties and ensure the safety of its application for banana cultivation
The results showed that the dissipation of fluopyram and was the fastest in Yunnan sandy soil, its dissipation half-lives in Hainan latosol, Yunnan sandy soil and Fujian plain alluvial soil were 46.21 days, 36.48 days, and 57.76 days, respectively, which were longer than those of fluopyram in the Shandong and Anhui soils[12]
Summary
Fluopyram is commonly used to control banana leaf spot, anthracnose, and scab in tropical agricultural areas. To explore its behaviour in tropical agricultural environments, dissipation, adsorption, and leaching behaviours of fluopyram in three typical banana planting soils were studied. Studying fluopyram’s dissipation, adsorption and migration behaviour in tropical soil environments is urgently required for safety assessments of these environments. We selected the three tropical and subtropical soils as the research objects of our study to analyse dissipation and migration of fluopyram in these typical banana planting areas and to discuss the relevant factors affecting its dissipation and migration. This new information will facilitate data and policy support for future use of fluopyram in tropical areas. The environmental behaviour of fluopyram in the tropical soils, through processes like digestion, adsorption and leaching, has not been reported
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