School of Sustainable Engineering and the Built Environment (SSEBE) , Arizona State University , P.O. Box 873005, Tempe , Arizona 85287-3005 , United States.
Department of Environmental Engineering Sciences Engineering School of Sustainable Infrastructure & Environment (ESSIE) , University of Florida , P.O. Box 116450, Gainesville , Florida 32611-6450 , United States.
J Agric Food Chem. 2019 Jan 9;67(1):50-62. doi: 10.1021/acs.jafc.8b06011. Epub 2018 Dec 20.
The main reason for implementing human urine diversion is to produce a local and renewable source of fertilizer for agriculture. Accordingly, the goal of this research was to compare human urine fertilizer and synthetic fertilizer in the cultivation of snap beans and turnips by evaluating the yield, plant tissue chemical composition, nutrient uptake efficiency, soil nutrient content, and leachate nutrient content between plots. Four fertilizer treatments were evaluated: (1) synthetic fertilizer, (2) urine supplemented with synthetic fertilizer, (3) urine only, and (4) a no-fertilizer control, referred to as treatments 1, 2, 3, and 4, respectively. Plants fertilized by treatments 1 and 2 produced the highest yield for fall turnips and spring snap beans. The turnip yield for the urine-only treatment was significantly higher than the no-fertilizer control. Overall, the results showed that supplemented urine fertilizer can be used as an alternative to synthetic fertilizer with comparable yields, and urine-only fertilizer can significantly increase yields over the no-fertilizer control. The results also suggest that nutrients in urine are available in a form favorable for plant uptake.
实施人类尿液分流的主要原因是为农业生产提供一种本地的、可再生的肥料资源。因此，本研究的目的是通过评估不同处理方式（处理 1 为施用合成肥料；处理 2 为补充合成肥料的尿液；处理 3 为仅施用尿液；处理 4 为不施肥对照）下的豆类作物（菜豆）和根茎类作物（萝卜）的产量、植物组织化学组成、养分吸收效率、土壤养分含量和渗滤液养分含量，来比较人类尿液肥料和合成肥料在作物栽培中的应用。结果表明，施用处理 1 和 2 的植物对秋季萝卜和春季菜豆的产量最高。仅施用尿液的处理方式的萝卜产量明显高于不施肥对照。总体而言，结果表明补充尿液肥料可以替代合成肥料，且尿液肥料的产量与合成肥料相当，而仅施用尿液肥料的处理方式的产量明显高于不施肥对照。结果还表明，尿液中的养分以有利于植物吸收的形式存在。
