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Degu, Adise
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Agriculture, Biological Sciences & Forestry

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Assessment of Physio-Chemical Properties of Bahir Dar Textile Sludge and Its Impact on The Growth of Lettuce (Lactuca Sativa) and Soil Nutrient Improvement Degu, Adise; Shiferaw, Tesfaye; Feyisa, Tesfaye
Journal of Tropical Crop Science Vol. 12 No. 01 (2025): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jtcs.12.01.25-36

Abstract

Textile produces large volumes of sludge due to industrial activity, and its disposal is a serious environmental concern because it includes toxic contaminants, including heavy metals. Due to its vast volume and mass, sludge management is seen as an additional burden to the industry. This study aims to characterize solid sludge from the textile industry. The sludge’s pH, organic matter (OM), nutrient elements (N, P, K), and metal content were determined using appropriate analytical techniques. Treatment consisted of 4×3 factorial combinations of nitrogen and phosphorus, i.e., full recommended (100 kg N and 50 kg P), half recommended (50 kg N and 25 kg P), control, and dried sludge at 0, 5, 10, and 20 tons per ha. The textile industrial sludge’s Cu, Cr, Fe, Cd, Pb, and Zn concentrations are 511.568, 251.166, 7991.667, 67.333, and 463.00, respectively. The Cu, Cr, Fe, and Zn concentration levels exceeded the recommended upper limit for agricultural soil. Nonetheless, cadmium and lead are below WHO standards. Soil pH, % total nitrogen, % total organic content, and % organic matter increased after sludge application. Applying textile sludge to soil considerably raised the soil Cr, Fe, and Cu contents compared with the control, and lettuce growth increased from 75 g to 143.5 g per pot after applying 20 tons of sludge per ha. Therefore, textile sludge could be an alternative to organic fertilizer or soil conditioner if metals, especially Fe and Cr, are reduced by proper treatment strategies.
Teff and Wheat Yield Variation With Phosphorus Application In Jamma District, Ethiopia Teshome, Habtemariam; Sisay, Kassa; Degu, Adise; Wubu, Tesfaye; Hailu, Tadesse
Journal of Tropical Crop Science Vol. 10 No. 02 (2023): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jtcs.10.02.94-100

Abstract

Different plant species has different nutrient requirements and utilize nutrients in different ways. Biological activity contributes to P solubilization through mineralization, wheathering, and other physicochemical reactions so that the soil plow layer is the major source of soil availabile P for crops. Ethiopia Ministry of Agriculture and Natural Resource and ATA recommended six types of blended fertilizers (NPSZnB, NPKSB, NPKSZnB, NPSZn, NPSB and NPS) for the Amhara region. Our study was conducted in Jamma districts of eastern Amhara, Ethiopia, during 2018 cropping season to attest the yield of teff (Dega teff) and wheat (Danda’a) due to phosphorus fertilizer application. Fertilizer treatments tested were the recommended dose of N only, recommended dose of NP, 50 kg.ha-1 NPS, 100 kg.ha-1 NPS, and 150kg. ha-1 NPS, set up in a. randomized complete block design with three replication, and conducted on four sites. Our study demonstrated that applications of N and P fertilizers significantly improved grain yield of wheat and teff, and that there was significant yield differences (P < 0.05) between different rates of P fertilizer. Therefore, even though the soil P levels were shown to be sufficient, application of both N and P fertilizer in the Jamma district is essential to increase yield of teff and wheat.
Co-Authors Feyisa, Tesfaye Hailu, Tadesse Shiferaw, Tesfaye Sisay, Kassa Teshome, Habtemariam Wubu, Tesfaye