Published in Scientific Papers. Series A. Agronomy, Vol. LXIX, Issue 1
Written by Ablam Lazare AFANOU, Vasilica STAN, Mirela DUṢA, Bassaï Magnoudéwa BODJONA, Alaki-Issi Massimapatom SEMA,Gado TCHANGBEDJI
To evaluate phosphorus availability in phospho-composts produced from poultry manure (PM) and phosphate waste (Phosphate Sludge – PS and Screening Residue – SR), six composts (A1: 75% PM + 25% PS; A2: 80% PM + 20% PS; A3: 89% PM + 11% PS; B1: 75% PM + 25% SR; B2: 80% PM + 20% SR; B3: 89% PM + 11% SR) were prepared. The results showed that the initial levels of available phosphorus were low, ranging from 0.101 to 0.114% P2O5, indicating that microorganisms were not yet active at the beginning of the composting process. By the end of the process, the
concentration of available phosphorus increased significantly, reaching 0.395 to 1.195% P2O5, representing an increase of 290 to 1071%. Overall, the composts enriched with phosphate sludge (series A) showed higher levels of available phosphorus than those containing screening residues (series B). These phospho-composts therefore represent promising organo-mineral amendments suitable for direct application in soil fertilization.
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{simplepopup popup="false" name="Citation80"}AFANOU A.L., STAN V., DUṢA M., BODJONA B.M., SEMA A.I.M., TCHANGBEDJI G. 2026, STUDY OF PHOSPHORUS AVAILABILITY IN PHOSPHO-COMPOSTS MADE FROM POULTRY MANURE AND PHOSPHATE WASTE. Scientific Papers. Series A. Agronomy, Vol. LXIX, Issue 1, ISSN 2285-5785, 647-654. {/simplepopup}