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The Effect of Nutrient Composition on the Growth of Kale Plants in Hydroponic Systems Soelistianto, Farida Arinie; Yohan, Yohan; Suparwata, Dewa Oka; Marjan, M; Amaludin, Moh. Baitullah
West Science Agro Vol. 3 No. 02 (2025): West Science Agro
Publisher : Westscience Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58812/wsa.v3i02.1924

Abstract

This study reviews the impact of nutritional composition on the growth of kale (Brassica oleracea var. acephala) in hydroponic systems, synthesizing findings from 15 Scopus-indexed studies. The analysis highlights the critical roles of macronutrients (nitrogen, phosphorus, potassium) and micronutrients (iron, magnesium, zinc) in optimizing plant growth, yield, and quality. Additionally, it examines the importance of nutrient solution management, including pH, electrical conductivity, and nutrient concentration, for efficient nutrient uptake. Innovative practices such as organic additives and advanced monitoring systems are also discussed for their potential to enhance productivity and sustainability. The review identifies gaps in existing research, particularly in standardizing nutrient formulations and assessing the long-term impact on nutritional quality. These findings provide actionable insights for researchers and practitioners aiming to advance hydroponic kale cultivation.
Biopile Sebagai Teknologi Ramah Lingkungan Untuk Remediasi Tanah Tercemar Timbal Salim, Awwalini Maghfirah; Alricha, Alricha; Kadir, Iin Nindy Karlinda; Pratiwi, Anita; Amaludin, Moh. Baitullah; Marjan, M
Jurnal Teknologi Berkelanjutan Vol 14 No 02 (2025): Vol 14 No. 02
Publisher : Lambung Mangkurat University Press

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Abstract

Soil contamination by the heavy metal lead (Pb) poses a significant threat to public health and ecosystems. This study evaluated the effectiveness of the ex-situ biopile method for remediating Pb-contaminated soil at the Kawatuna Landfill, Palu City. Soil samples were collected from the contaminated site and treated in a biopile prototype with controlled aeration and moisture, with the addition of compost as an amendment at 10% (w/w). Laboratory analyses conducted at the Integrated Laboratory of Tadulako University showed a decrease in total Pb concentration from 41.96 mg/kg to 31.83 mg/kg after seven days of treatment. This corresponds to a removal efficiency of 24.13% and an average degradation rate of 1.45 mg/kg·day. These results indicate that the biopile method is capable of reducing Pb concentrations in soil during the initial stage of treatment; however, optimization of treatment duration and operational conditions is required to achieve regulatory soil quality standards. Furthermore, the use of locally sourced compost as a nutrient amendment and the absence of secondary waste generation support the biopile method as an environmentally friendly and cost-effective soil remediation technology.