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All Journal Folium : Jurnal Ilmu Pertanian ASIAN: Indonesian Journal of Learning Development and Innovation
Rubiatul Adawiyah
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Agriculture, Biological Sciences & Forestry Education Other

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Pertumbuhan, Hasil dan Translokasi Timbal (Pb) pada Tanaman Kangkung (Ipomea reptans) dan Bayam (Amaranthus tricolor L.) Dengan Penambahan Pupuk ZA Berbeda Dosis Rubiatul Adawiyah; Anis Rosyidah
Folium : Jurnal Ilmu Pertanian Vol 4, No 2 (2020): Folium : Jurnal Ilmu Pertanian
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/folium.v4i2.8659

Abstract

Lead (Pb) is the heavy metal that causes the most pollution in the environment. This study was conducted to compare the ability of water spinach and spinach plants to absorb lead due to the administration of various doses of ZA as a heavy metal suppressor on polluted land. This research is a pot experiment using a factorial randomized block design (RBD) with two factors. The first factor is the type of plant (Kangkung and Spinach). The second factor was the dose of ZA fertilizer  (0; 1.19; 2.38 3.57; 4.76 g / pot). The variables observed included growth, plant yield, and Pb concentration in plants. The results showed that the growth of kale plants increased with the increasing dose of ZA application up to 2.38 g / pot. Increasing the dose gave an insignificant increase in growth (P <0.05), likewise in spinach plants. However, higher doses caused a significant reduction in the number of spinach leaves (P <0.05). The fresh weight of kale roots and shoots significantly increased by an average of 50.74% and 36.57% compared to the control. While the spinach plant experienced an increase in the average root and shoot fresh weight significantly by 50.76% and 53.10% compared to the control. Water spinach plants accumulated more Pb in the crown with an average Translocation Factor (TF) value of 1.09. Meanwhile, spinach plants accumulated more Pb in their roots with an average TF value of 0.75. These results suggest that the application of ZA increases the Pb uptake of plant hyperaccumulators from vegetables. However, spinach is safer to eat because heavy metals are accumulated in the roots. Keywords: Phyitoremediation, Lead, water spinach, spinach, ZA, Translocation.
The Influence of Speed Reading Test on Elementary School Students' Reading and Critical Thinking Skills Rubiatul Adawiyah; Nurmalina; Imam Hanafi
ASIAN: Indonesian Journal of Learning Development and Innovation Vol. 2 No. 3 (2024): November
Publisher : Institute of Educational, Research, and Community Service

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Abstract

This study aims to analyze the effect of the Speed Reading teaching method on elementary school students' reading ability and critical thinking skills. The research method used is an experiment with a pretest-posttest control group design. The population of the study consists of 5th and 6th-grade students at SD Negeri 6 Citradamai, with a total sample of 59 students divided into an experimental group and a control group. The results show that the Speed Reading method is effective in improving students' speed reading ability and critical thinking skills. This is evidenced by the Mann-Whitney test significance value (Asymp. Sig. 2-tailed) of 0.005 (p < 0.05). These findings indicate that the Speed Reading method not only enhances reading speed but also helps students analyze and evaluate information more critically.
Co-Authors Anis Rosyidah Imam Hanafi Nurmalina