Tags

Type your tag names separated by a space and hit enter

Reuse of liquid, dewatered, and composted sewage sludge on agricultural land: effects of long-term application on soil and crop.
Water Res 2005 Jan-Feb; 39(2-3):289-96WR

Abstract

To evaluate the effects of repeated sewage sludge applications in comparison to mineral fertilisers on a winter wheat-maize-sugar beet rotation, a field experiment on a silty-loam soil, in the eastern Po Valley (Italy), was carried out since 1988. Municipal-industrial wastewater sludge as anaerobically digested, belt filtered (dewatered), and composted with wheat straw, has been applied at 5 and 10 Mg DM ha(-1)yr(-1). Biosolids gave crop yields similar to the highest mineral fertiliser dressing. However, with the higher rate of liquid and dewatered sludge, excessive N supply was harmful, leading to wheat lodging and poor quality of sugar beet and wheat crops. From this standpoint compost use was safer. Biosolids increased organic matter (OM), total N, and available P in the soil and reduced soil alkalinity, with more evident effects at the highest rate. Compost caused the most pronounced OM top soil accumulation. Significant accumulations of total Zn and Cu were detected in amended top soil, but no other heavy metals (Cd, Cr, Ni, Pb), whose total concentration remained well below the hazard limits. Biosolid applications significantly increased the content of N, P, Zn, and Cu in wheat grain, N and Cu in sugar beet roots, and only Cu in maize grain. The application of biosolids brought about notable benefits to soil fertility but it was associated with possible negative effects on water quality due to increased P availability and on soil ecology due to Zn accumulation.

Authors+Show Affiliations

Research Centre on Animal Production, Corso Garibaldi 42, Reggio Emilia 42100, Italy. p.mantovi@crpa.itNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

15644237

Citation

Mantovi, Paolo, et al. "Reuse of Liquid, Dewatered, and Composted Sewage Sludge On Agricultural Land: Effects of Long-term Application On Soil and Crop." Water Research, vol. 39, no. 2-3, 2005, pp. 289-96.
Mantovi P, Baldoni G, Toderi G. Reuse of liquid, dewatered, and composted sewage sludge on agricultural land: effects of long-term application on soil and crop. Water Res. 2005;39(2-3):289-96.
Mantovi, P., Baldoni, G., & Toderi, G. (2005). Reuse of liquid, dewatered, and composted sewage sludge on agricultural land: effects of long-term application on soil and crop. Water Research, 39(2-3), pp. 289-96.
Mantovi P, Baldoni G, Toderi G. Reuse of Liquid, Dewatered, and Composted Sewage Sludge On Agricultural Land: Effects of Long-term Application On Soil and Crop. Water Res. 2005;39(2-3):289-96. PubMed PMID: 15644237.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Reuse of liquid, dewatered, and composted sewage sludge on agricultural land: effects of long-term application on soil and crop. AU - Mantovi,Paolo, AU - Baldoni,Guido, AU - Toderi,Giovanni, Y1 - 2004/12/01/ PY - 2004/03/30/received PY - 2004/09/21/revised PY - 2004/10/04/accepted PY - 2005/1/13/pubmed PY - 2005/5/17/medline PY - 2005/1/13/entrez SP - 289 EP - 96 JF - Water research JO - Water Res. VL - 39 IS - 2-3 N2 - To evaluate the effects of repeated sewage sludge applications in comparison to mineral fertilisers on a winter wheat-maize-sugar beet rotation, a field experiment on a silty-loam soil, in the eastern Po Valley (Italy), was carried out since 1988. Municipal-industrial wastewater sludge as anaerobically digested, belt filtered (dewatered), and composted with wheat straw, has been applied at 5 and 10 Mg DM ha(-1)yr(-1). Biosolids gave crop yields similar to the highest mineral fertiliser dressing. However, with the higher rate of liquid and dewatered sludge, excessive N supply was harmful, leading to wheat lodging and poor quality of sugar beet and wheat crops. From this standpoint compost use was safer. Biosolids increased organic matter (OM), total N, and available P in the soil and reduced soil alkalinity, with more evident effects at the highest rate. Compost caused the most pronounced OM top soil accumulation. Significant accumulations of total Zn and Cu were detected in amended top soil, but no other heavy metals (Cd, Cr, Ni, Pb), whose total concentration remained well below the hazard limits. Biosolid applications significantly increased the content of N, P, Zn, and Cu in wheat grain, N and Cu in sugar beet roots, and only Cu in maize grain. The application of biosolids brought about notable benefits to soil fertility but it was associated with possible negative effects on water quality due to increased P availability and on soil ecology due to Zn accumulation. SN - 0043-1354 UR - https://www.unboundmedicine.com/medline/citation/15644237/Reuse_of_liquid_dewatered_and_composted_sewage_sludge_on_agricultural_land:_effects_of_long_term_application_on_soil_and_crop_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0043-1354(04)00504-4 DB - PRIME DP - Unbound Medicine ER -