Development of a novel system consisting of catch crop cultivation and L-lactate fermentation of harvested biomass for nitrate groundwater pollution control and resource recovery

捕获性作物种植后大水灌溉同时实现了温室园艺表层土壤氮淋失的减少和盐分的去除。作为一种捕获作物，玉米生物质中的多糖容易水解，并且证明了利用生物质中提取的糖进行l -乳酸发酵。通过将粉末状生物质浸泡在蒸馏水中，并在提取液中加入钙，可以回收玉米生物质中约80%的磷。结果表明，该系统对硝酸盐地下水污染的防治和资源回收是有效的。

Catch crop cultivation followed by flood irrigation simultaneously realized the reduction of nitrogen leaching and removal of salts accumulated in the topsoil of greenhouse horticulture. Polysaccharides in the corn biomass cultivated as a catch crop was easily hydrolyzed, and the L-lactate fermentation using sugars derived from the biomass was demonstrated. Around 80% of phosphorus in the corn biomass was recovered by soaking powdered biomass in distilled water and calcium addition to the extract. These results demonstrated that the proposed system was effective for the prevention of nitrate groundwater pollution and resource recovery.