Influence of biochar on the sorption and leaching of thiamethoxan in soil.

This study evaluated the long-term effect of biochar application on the sorption and desorption of thiamethoxam in a Haplic Plinthosol. The experiment was conducted in a randomized block design with combination of doses of mineral fertilizer NPK (0 and 300 kg·ha formula 05-25-15) and biochar (0, 16 and 32 Mg ha). Deformed soil samples were collected in the field from the 0-0.

Successive sewage sludge fertilization: Recycling for sustainable agriculture.

Sewage sludge (SS) is widely used in agriculture in several countries around the world. However, the impact of successive applications of SS on soil and the risks of nutrient leaching are often neglected. In this study, corn was grown on a constructed wetland for four crop cycles (two years), in which the wetland was subjected to successive SS applications.