Innovative Polycomposite Fertilizer Obtained by Recycling and Processing Three Organic Wastes

Anca Rovena Lacatusu, Aurelia Meghea, Adina Elena Rogozea and Carolina Constantin
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Anca Rovena Lacatusu: National R&D Institute for Soil Science, Agrochemistry and Environment-ICPA-Bucharest, 011464 Bucharest, Romania
Aurelia Meghea: Faculty of Applied Chemistry and Materials Science, Department of Inorganic Chemistry, Physical Chemistry and Electrochemistry, University Politehnica of Bucharest, 1–7 Polizu, Sector 1, 011061 Bucharest, Romania
Adina Elena Rogozea: Faculty of Applied Chemistry and Materials Science, Department of Inorganic Chemistry, Physical Chemistry and Electrochemistry, University Politehnica of Bucharest, 1–7 Polizu, Sector 1, 011061 Bucharest, Romania
Carolina Constantin: Faculty of Applied Chemistry and Materials Science, Department of Inorganic Chemistry, Physical Chemistry and Electrochemistry, University Politehnica of Bucharest, 1–7 Polizu, Sector 1, 011061 Bucharest, Romania

Agriculture, 2021, vol. 11, issue 10, 1-14

Abstract: The paper aims at testing an innovative organic fertilizer obtained from waste by processing a mixture of marine algae biomass, sewage municipal sludge and farmyard manure. Design of this polycomposite fertilizer is based on adequate conceptual and experimental models by taking into account the complex interactions among these three biomasses. In the first step a detail physico-chemical analysis has been performed on the composition of the three raw materials and also on the soil. In the second phase similar analyses have been carried out on representative samples of soil treated with the compost as compared with untreated soil samples. Analytical methods applied were FT-IR spectroscopy in correlation with organic/inorganic and total carbon (TOC/TIC/TC) analysis. The efficiency of applying this compost on the field at large scale has been assessed by means of fatty acid content of the oleaginous plants cultivated. Based on correlation between production quality and chemical composition of the composted soil, the optimal proportions of the mixture of the three organic wastes will be selected for designing an eco-friendly fertilizer able to improve agrochemical properties of the soil.

Keywords: biocomposite fertilizer; sewage sludge; marine algae; farmyard manure; compost; field experiments (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2021
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