This invention discloses a method and apparatus for producing
selenium-enriched liquid
fertilizer using invasive organisms and
agricultural waste. The method involves mixing the invasive
organism *
Alternanthera philoxeroides* and
agricultural waste rice straw in a specific ratio, then using the invasive animal *
Pomacea canaliculata* to biotransform the mixture. Different forms of
selenium source are added to the
biotransformation residue, and
selenium-enriched liquid
fertilizer is prepared using an aerobic liquid composting
fermentation method. The composting apparatus consists of a composting bin, an automatic
oxygen supply mechanism, and an intelligent
temperature control mechanism, enabling
fully automated management, simple operation, and no cumbersome setup. It is suitable for the efficient production of selenium-enriched liquid
compost. This invention not only provides a new approach for the
green production of selenium-enriched liquid
compost from invasive organisms and
agricultural waste, but also provides a new technology of "high-temperature composting,
nutrient enrichment, and low-carbon
environmental protection," realizing the
resource utilization of invasive organisms and agricultural waste by converting them into selenium-enriched liquid
compost, turning harm into benefit and waste into treasure.