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All Journal AL-ULUM: JURNAL SAINS DAN TEKNOLOGI
Farhanah Shofwah Verina
Universitas Negeri Padang
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Decision Sciences, Operations Research & Management Energy

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THE EFFECT OF JAKABA FERTILIZER ON THE GROWTH OF SPINACH PLANTS (Amaranthus viridis) Khairunisa Khairunisa; Farhanah Shofwah Verina; Feby Djumaita Sari; Nadira Nadira; Azwir Anhar
AL ULUM: JURNAL SAINS DAN TEKNOLOGI Vol 11, No 1 (2025)
Publisher : UPT Publication and Journal Management, Islamic University of Kalimantan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31602/jst.v11i1.18548

Abstract

Green spinach is a vegetable with vitamin, protein, fat, carbohydrates, potassium, and important minerals such as calcium, phosphorus, and iron. Jakaba is one of the organic fertilizers. Jakaba fertilizer made from the fermentation of the first rice washing water, is a promising alternative to inorganic fertilizer. Rice washing water contains nutrients such as N, P2O5, K2O, and C-organic which play a role in plant growth. This study aims to determine the effect of Jakaba fertilizer on the growth of spinach (Amaranthus viridis). The method used in this study is the experimental method. By using a non-factorial Completely Randomized Design (CRD) consisting of 5 treatments, with 4 replications. The results of the study showed that Jakaba fertilizer has a major impact on the growth of spinach because it contains macronutrients as well as other micronutrients. The best spinach plant growth was shown in P3, which is 60 ml Jakaba/500 ml water.
ENVIRONMENTAL IMPACT ANALYSIS OF QUARRYING ACTIVITIES IN SUNGAI DUKU, PADANG PARIAMAN, IN TERMS OF BIOLOGICAL COMPONENTS Farhanah Shofwah Verina; Vauzia Vauzia; Khairunisa Khairunisa; Ardelia Febriana
AL ULUM: JURNAL SAINS DAN TEKNOLOGI Vol 11, No 1 (2025)
Publisher : UPT Publication and Journal Management, Islamic University of Kalimantan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31602/jst.v11i1.18418

Abstract

Non-metallic mineral and rock (category or class C) mining activities have the potential to generate significant environmental impacts, particularly on biological components. This study aims to assess the impact of class C mining activities in the Duku River, Padang Pariaman. A qualitative descriptive analysis method was employed, with data collected through observation, documentation, and interviews conducted at the study site. Based on the results, the flora diversity index calculated using the Shannon–Wiener method was 2.218, while the fauna diversity index was 2.186. These values fall within the moderate category of biodiversity. Therefore, it can be concluded that class C mining activities in the Duku River have a measurable impact on biological components.
Co-Authors Ardelia Febriana Azwir Anhar Feby Djumaita Sari Khairunisa Khairunisa Nadira Nadira Vauzia, Vauzia