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 JACEN  Vol.10 No.2 , May 2021
Agrotechnical Assessment of Struvite Application
Abstract: Agrotechnical assessment of struvite produced by a lab-scale sedimentation unit is performed. As a source of phosphates and ammonia, liquor obtained through dewatering of Мunicipal wastewater treatment plant sludge was in use. The range of phosphates and ammonia was in the range of 130 - 250 and 380 - 560 mg/L, respectively. Seawater brine with a magnesium concentration of around 60 g Mg2+/L was applied as a source of magnesium. The agrotechnical characteristics of struvite obtained were compared to ammonium nitrate and carbamide in regards to the productivity effects on maize hybrid P9241. The results show that the effectiveness of struvite and some commercial fertilizers is quite close. The highest yield in the experiment was achieved with the application of carbamide plus ammonium nitrate (56.64 kg/ha), while in applying struvite solely it is 54.60 kg/ha. The highest protein content of maize (9.7%) was observed in the case of struvite/ammonium nitrate application.
Cite this paper: Peeva, G. , Yemendzhiev, H. , Koleva, R. and Nenov, V. (2021) Agrotechnical Assessment of Struvite Application. Journal of Agricultural Chemistry and Environment, 10, 213-221. doi: 10.4236/jacen.2021.102014.
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