5 results

Sewage sludge-based organomineral fertilizer improves phosphorus efficiency in Urochloa brizantha

Andre Luiz de Freitas Espinoza ORCID logo , João Henrique Silva da Luz ORCID logo , Tiago Tezotto ORCID logo , Paulo Sergio Pavinato ORCID logo

17/Jun/2025

ABSTRACT Sewage sludge (SS) from wastewater treatment has reasonable phosphorus (P) levels, which could be used as fertilizer in agriculture. However, SS-P content is lower than mineral fertilizers, which limits its operational application. The blend of organic and mineral material can increase the P content, formulating organomineral fertilizers (OMF) with higher P levels, enabling agricultural use. This study aimed to assess the agronomic efficiency and residual effect of organomineral fertilizers derived from SS as phosphorus sources for Urochloa brizantha. A […]

Visual Abstract

Phosphate Sources and Filter Cake Amendment Affecting Sugarcane Yield and Soil Phosphorus Fractions

Amin Soltangheisi ORCID logo , Valdevan Rosendo dos Santos ORCID logo , Henrique Coutinho Junqueira Franco ORCID logo , Oriel Kolln ORCID logo , André Cesar Vitti ORCID logo , Carlos Tadeu dos Santos Dias ORCID logo , [...]

22/May/2019

ABSTRACT: The use of mineral phosphate fertilizers associated with organic residues can improve fertilizer use efficiency and consequently decrease their usage costs. Soil application of filter cake (FC) can provide nutrients and enhance physical quality. This study aimed to evaluate the effects of different phosphate fertilizers [rock phosphate (RP) and triple superphosphate (TSP)] applied at different rates (90 and 180 kg ha-1 P2O5) associated with filter cake (10 Mg ha-1 dry matter) on the soil phosphorus (P) fractions after two […]

Available content, surface runoff and leaching of phosphorus forms in a typic hapludalf treated with organic and mineral nutrient sources

Cledimar Rogério Lourenzi, Carlos Alberto Ceretta, Jackson Berticelli Cerini, Paulo Ademar Avelar Ferreira, Felipe Lorensini, Eduardo Girotto, [...]

01/Apr/2014

The application of animal manure to soil can increase phosphorus availability to plants and enhance transfer of the nutrient solution drained from the soil surface or leached into the soil profile. The aim of this study was to evaluate the effect of successive applications of organic and mineral nutrient sources on the available content, surface runoff and leaching of P forms in a Typic Hapludalf in no-tillage systems. Experiment 1 was set up in 2004 in the experimental area of […]

Soil chemical properties related to acidity under successive pig slurry applications

Cledimar Rogério Lourenzi, Carlos Alberto Ceretta, Leandro Souza da Silva, Gustavo Trentin, Eduardo Girotto, Felipe Lorensini, [...]

01/Oct/2011

Pig slurry application as soil manure can alter the chemical properties of the soil and affect its acidity, modifying the environment for crop growth and development. The objective of this study was to evaluate the chemical properties related to soil acidity subjected to successive applications of pig slurry. The experiment was conducted in May 2000, in an experimental area of the Federal University of Santa Maria (UFSM) under no-tillage and lasted until January 2008. Nineteen surface applications of 0, 20, […]

Soil chemical alterations and growth of maize and bean plants after sewage sludge application

C. W. A. Nascimento, D. A. S. Barros, E. E. C. Melo, A. B. Oliveira

01/Apr/2004

Sewage sludge from wastewater treatments contains organic matter and plant nutrients that may play an important role in agricultural production and maintenance of soil fertility. The present study aimed to evaluate the effect of increasing sewage sludge rates on soil chemical properties, heavy metal concentration in soils and plants, and the growth of maize and bean plants cultivated in pots under greenhouse conditions. Two soil types with different clay contents were used for application of six sewage sludge rates (equivalent […]