[PDF][PDF] Residual effect of composted kitchen waste and poultry manure soil amendments on yield and concentrations of copper, iron, manganese and zinc in leaf tissue …
Ife Journal of Agriculture, 2018•researchgate.net
Source of organic amendment for the production of vegetable crops is of prime importance
for safe soil to prevent contamination of the food chain. This study assessed residual effects
of composted kitchen waste (KW) and poultry manure (PM) soil amendments on growth, leaf
dry weight (LDW), accumulation and transfer of four heavy metals: copper (Cu), iron (Fe),
manganese (Mn) and zinc (Zn) in leaf tissue of Jute mallow (Corchorus olitorius) under field
condition. The main treatments (KW and PM) and sub-treatments amendment rates (0, 5, 10 …
for safe soil to prevent contamination of the food chain. This study assessed residual effects
of composted kitchen waste (KW) and poultry manure (PM) soil amendments on growth, leaf
dry weight (LDW), accumulation and transfer of four heavy metals: copper (Cu), iron (Fe),
manganese (Mn) and zinc (Zn) in leaf tissue of Jute mallow (Corchorus olitorius) under field
condition. The main treatments (KW and PM) and sub-treatments amendment rates (0, 5, 10 …
Abstract
Source of organic amendment for the production of vegetable crops is of prime importance for safe soil to prevent contamination of the food chain. This study assessed residual effects of composted kitchen waste (KW) and poultry manure (PM) soil amendments on growth, leaf dry weight (LDW), accumulation and transfer of four heavy metals: copper (Cu), iron (Fe), manganese (Mn) and zinc (Zn) in leaf tissue of Jute mallow (Corchorus olitorius) under field condition. The main treatments (KW and PM) and sub-treatments amendment rates (0, 5, 10, 15 t ha-1) were replicated three times in a Randomized Complete Block Design (RCBD). At six weeks after sowing, plants were harvested and leaf tissue was analyzed. Data collected were subjected to analysis of variance (ANOVA) and result showed that plant amended with PM gave significantly (p< 0.05) higher fresh biomass and LDW than those with KW at 10 t ha-1. Heavy metal accumulation in leaf tissue of Jute mallow was higher across rates with PM than KW amendment. Transfer factor (TF) of metals from soil to the leaves was highest with KW than PM at 5 t ha-1. Intensity of metal accumulation is in the order of TF for Zn (1.46-2.38)> Cu (0.77-1.37)> Mn (0.24-0.40)> Fe (0.026-0.039). The TF decreased with increased amendment rate despite increased total concentration of metals in the soil. Poultry manure with higher metal binding effect can immobilize metals better than KW.
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