2014
DOI: 10.5424/sjar/2014124-6282
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Short communication. Growth and nodulation of cowpea after 5 years of consecutive composted tannery sludge amendment

Abstract: Tannery industry releases high amounts of tannery sludge which are currently composted and used in agricultural soils. The consecutive amendment of such composted tannery sludge (CTS) may affect soil microrganisms, such as rhizobia. In this study, we evaluated the effects of 5-year repeated CTS amendment on growth, nodulation, and yield of cowpea (Vigna unguiculata L.) CTS was applied in different amounts (0, 2.5, 5, 10 and 20 Mg/ha) to a sandy soil. Amendment of CTS increased soil pH, electrical conductivity … Show more

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Cited by 11 publications
(5 citation statements)
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“…Also, these results suggested that CTS promoted an increase in plant growth due to the availability of plant nutrients in the soil. Similar results were observed by MIRANDA et al (2014) and SILVA et al (2010) evaluating the effect of composted tannery sludge on the growth of cowpea and pepper, respectively.…”
Section: Resultssupporting
confidence: 86%
See 1 more Smart Citation
“…Also, these results suggested that CTS promoted an increase in plant growth due to the availability of plant nutrients in the soil. Similar results were observed by MIRANDA et al (2014) and SILVA et al (2010) evaluating the effect of composted tannery sludge on the growth of cowpea and pepper, respectively.…”
Section: Resultssupporting
confidence: 86%
“…This process occurs in root nodules, being the nodulation a suitable indicator of efficient BNF (PEOPLES et al, 1989) and also there is a significant correlation between nodulation and efficiency of N fixation in legumes (DELIC et al, 2010). Also, nodulation and BNF are important parameters for evaluating toxic effects of pollutants (MIRANDA et al, 2014).…”
Section: Introductionmentioning
confidence: 99%
“…Some studies have proposed the agricultural use of composted tannery sludge as an alternative treatment method like that of other similar solid waste (Singh et al, 2015;Singh, Singh, Ibrahim, & Hashim, 2011;Silva et al, 2010). Previous studies have shown that the use of composted tannery sludge has improved the soil fertility and crop yield (Miranda, Nunes, Oliveira, Melo, & Araújo, 2014;Araújo, Lima, Santos, & Schmidt, 2016). On the other hand, the application of composted tannery sludge has been reported to increase the Cr concentrations in the soil (Santos, Araújo, Nunes, Oliveira, & Melo, 2014), which could limit its use for agricultural purposes, since this element can be easily absorbed by the plants (Gondek, 2008).…”
Section: Introductionmentioning
confidence: 99%
“…Thus, composted tannery sludge (CTS) application in soil can improve soil fertility, organic matter content, and microbial biomass. Earlier studies reported improved soil properties and crop yield after permanent CTS application in soils (Araújo, De Melo, Araujo, & Van Den Brink, 2020;Miranda, Nunes, Oliveira, Melo, & Araujo, 2014). Araujo et al (2020) reported higher organic matter content and nutrients, such as N, P, and K, while Araujo, Lima, Melo, Santos, and Araujo (2016) reported higher cowpea and maize yield after six years of CTS application.…”
Section: Introductionmentioning
confidence: 88%