title: Influence of Soil and Irrigation Water pH on the Availability of Phosphorus in Struvite Derived from Urine through a Greenhouse Pot Experiment.
abstract: One greenhouse pot experiment was used to investigate the availability of phosphorus in struvite derived from urine affected by soil pH (cinnamon soil, pH 7.3; paddy soil, pH 5.3) and irrigation water (pH 6.0 and 7.5) with bird rapeseed (Brassica campestris L.). The biomass of applied struvite in paddy soil was significantly greater than that of applied calcium superphosphate. However, statistically significant differences were not observed in cinnamon soil. Soil-applied struvite had a higher Olsen P compared to soil-applied calcium superphosphate irrespective of soil type. The biomass of applied struvite and irrigation with pH 6.0 water was greater compared to that with irrigation with pH 7.3 water irrespective of soil type, accompanied with significantly higher leaf chlorophyll concentration. Therefore, struvite has the potential to be an effective P fertilizer, and acidic irrigation water has greater influence on the availability of phosphorus in struvite than does acidic soil.
authors.affiliation: College of Resources and Environment, University of Chinese Academy of Sciences , Beijing 100049, China.
authors.forename: Xiaoning
authors.initials: X
authors.lastname: Liu
authors.forename: Yi
authors.initials: Y
authors.lastname: Tao
authors.affiliation: College of Resources and Environment, University of Chinese Academy of Sciences , Beijing 100049, China.
authors.forename: Guoqi
authors.initials: G
authors.lastname: Wen
authors.affiliation: State Key Laboratory of Heavy Oil Processing, Beijing Key Laboratory of Oil & Gas Pollution Control, China University of Petroleum , Beijing 102249, China.
authors.forename: Fanxin
authors.initials: F
authors.lastname: Kong
authors.forename: Xihui
authors.initials: X
authors.lastname: Zhang
authors.affiliation: College of Resources and Environment, University of Chinese Academy of Sciences , Beijing 100049, China.|Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085, China.
authors.forename: Zhengyi
authors.initials: Z
authors.lastname: Hu
mesh_terms: D057914:Agricultural Irrigation; D018533:Biomass; D006863:Hydrogen-Ion Concentration; D010758:Phosphorus / Q000737:chemistry*; D018515:Plant Leaves / Q000737:chemistry; D012987:Soil / Q000737:chemistry*; D000069877:Struvite / Q000737:chemistry*; D014556:Urine / Q000737:chemistry*; D014867:Water / Q000737:chemistry*
chemical_list: D012987:Soil; D014867:Water; D010758:Phosphorus; D000069877:Struvite
keywords: irrigation water; phosphorus; plant availability; soil; struvite