Department of Soil Science, Plant Production and Remote Sensing, University of Limpopo, Turflop Campus, South Africa.
Waste Manag Res. 2011 May;29(5):532-9. doi: 10.1177/0734242X10374900. Epub 2010 Jul 2.
A glasshouse experiment was conducted to evaluate the combined use of separately collected human faeces and urine as fertilizer for spinach (Spinacia oleracea) production. Seven human faeces N : urine N combinations (1 : 7 to 7 : 1) each supplying 200 kg N ha(-1) were evaluated along with sole human faeces, sole urine, inorganic fertilizer and an unamended control. Complementary application of the two resources, human faeces and urine, increased fresh and dry matter yields only in treatments having high proportions of urine. Nitrogen uptake followed the same trend but the opposite trend occurred for P uptake indicating that urine was a better source of N whereas human faeces were the better source of P. Potassium uptake was not influenced by the two resources. The minimal improvement observed in the fertilizer value of human faeces when co-applied with urine suggested that co-application of the two resources may not give an added yield advantage when compared with sole human faeces.
一项温室实验评估了分别收集的人类粪便和尿液作为肥料，用于菠菜（Spinacia oleracea）生产的综合使用。评估了 7 个人类粪便 N:尿液 N 组合（1:7 至 7:1），每个组合供应 200 千克 N ha(-1)，以及单独的人类粪便、单独的尿液、无机肥料和未经改良的对照。只有在尿液比例高的处理中，两种资源（人类粪便和尿液）的互补应用才会增加鲜重和干重产量。氮吸收遵循相同的趋势，但磷吸收则相反，表明尿液是更好的氮源，而人类粪便则是更好的磷源。钾吸收不受两种资源的影响。当与尿液共同施用时，人类粪便的肥料价值的最小改善表明，与单独施用人类粪便相比，两种资源的共同施用可能不会带来额外的产量优势。
