Plant uptake of phosphorus and nitrogen recycled from synthetic source-separated urine

被引：84

作者：

Bonvin, Christophe ^{[1
]}

Etter, Bastian ^{[2
]}

Udert, Kai M. ^{[2
]}

Frossard, Emmanuel ^{[1
]}

Nanzer, Simone ^{[3
]}

Tamburini, Federica ^{[1
]}

Oberson, Astrid ^{[1
]}

机构：

[1] Swiss Fed Inst Technol, Inst Agr Sci, Res Stn Eschikon, Grp Plant Nutr, CH-8315 Lindau, Switzerland

[2] Eawag, Swiss Fed Inst Aquat Sci & Technol PSI, CH-8600 Dubendorf, Switzerland

[3] Paul Scherrer Inst, CH-5232 Villigen, Switzerland

来源：

AMBIO | 2015年 / 44卷

关键词：

Human urine; Struvite; Nitrified urine fertilizer; Phosphorus; P-33 and N-15 labeling; Nutrient use efficiency; STRUVITE PRECIPITATION; RECOVERY; SOIL; AVAILABILITY; FERTILIZER; PHOSPHATES; FATE;

D O I：

10.1007/s13280-014-0616-6

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Urine contains about 50 % of the phosphorus (P) and about 90 % of the nitrogen (N) excreted by humans and is therefore an interesting substrate for nutrient recovery. Source-separated urine can be used to precipitate struvite or, through a newly developed technology, nitrified urine fertilizer (NUF). In this study, we prepared P-33 radio-isotopeand stable N-15 isotope-labeled synthetic NUF (SNUF) and struvite using synthetic urine and determined P and N uptake by greenhouse-grown ryegrass (Lolium multiflorum var. Gemini) fertilized with these products. The P and N in the urine-based fertilizers were as readily plant-available in a slightly acidic soil as the P and N in reference mineral fertilizers. The ryegrass crop recovered 26 % of P applied with both urine-based fertilizers and 72 and 75 % of N applied as struvite and SNUF, respectively. Thus, NUF and urine-derived struvite are valuable N and P recycling fertilizers.

引用

页码：S217 / S227

页数：11

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