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All Journal Jurnal Perikanan dan Kelautan AGRIVITA, Journal of Agricultural Science Jurnal Solum Aquacultura Indonesiana Jurnal Akuakultura Universitas Teuku Umar Jurnal Abdi Insani Reswara: Jurnal Pengabdian Kepada Masyarakat Jurnal Pengabdian Pada Masyarakat Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan JARI : Jurnal Akuakultur Rawa Indonesia
Marsi Marsi
Department of Chemical, Engineering Faculty, Sriwijaya Univrsity, Indralaya 30662
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DINAMIKA pH TANAH BERPIRIT AKIBAT PERUBAHAN KONDISI AIR DAN APLIKASI AMELIORAN Marsi, Marsi
Jurnal Solum Vol. 21 No. 1 (2024)
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jsolum.21.1.30-42.2024

Abstract

Naturally, during dry season, pyrite tent to be oxidized due to soil water content and groundwater level decrease. This paper aims to evaluate the influence of soil water condition and ameliorants on pyritic soil pH dynamics. Pyritic soil was taken from a depth of 70-90 cm below soil surface in the acid sulphate land located at Mulyasari Village, Tanjung Lago District, Banyuasin Regency, South Sumatra. The research was carried out in greenhouse with 2 treatment factors, namely: Water condition (K1 = water condition maintained at 5 cm above soil surface during incubation period and K2 = water condition at 5 cm above soil surface and allowed to decrease during incubation period) and ameliorant (T = Without Ameliorant, B = Organic Matter, D = Dolomite, P = Phosphate Fertilizer and S = Silicate Coal Ash). The results showed that pyritic soil pH tended to be stable during incubation period for K1 treatment, and pH of soil treated with dolomite > Silicate Coal Ash > Organic Matter > P Fertilizer > Without Ameliorant. Meanwhile for K2 treatment, soil pH tended to decrease with the highest rates are 21.58x10-2, 19.33x10-2, 4.38x10-2, 7.50x10-2, and 12.07x10-2 pH unit per day, respectively for without ameliorant, organic matter, dolomite, phosphate fertilizer and silicate coal ash. The highest rate of decrease in pH of pyritic soil occurred in the range of decreasing water content from 66.31 to 41.73% for without ameliorant, organic matter and phosphate fertilizer, from 41.73 to 13.93% for silicate coal ash, and from 13 .93 to 8.22 % for dolomite. These findings can be applied for managing pyritic soil by maintaining soil water content from falling under water content critical limit range and under uncontrolled dry conditions it is recommended to use lime to minimize pyrite oxidation.
APLIKASI PENGGUNAAN KOTORAN PUYUH DAN AMPAS TAHU TERFERMENTASI UNTUK MEDIA PEMELIHARAAN CACING SUTERA DI UPR D5 DESA SUKA PINDAH KABUPATEN OGAN ILIR Yulisman, Yulisman; Jubaedah, Dade; Ismalia, Nova; Marsi, Marsi; Wijayanti, Marini; Mukti, Retno Cahya; Amin, Mohamad
Jurnal Abdi Insani Vol 11 No 3 (2024): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v11i3.1708

Abstract

Silk worms is commonly used as natural feed for larval on fish hatchery. Cultivating silk worms requires a substrate as well as a feed source to support their growth. Fermented quail manure, tofu waste, and tapioca flour can be utilized as cultivation media for silk worms. This activity aims to apply the use of fermented quail manure, and tofu dreg, and tapioca flour on the growth of silk worms at Unit Pembenihan Rakyat D5 Suka Pindah Village, Ogan Ilir, South Sumatera. This activity is community service through extension and silk worm culture using media from fermented quail manure and tofu dregs. Silk worm cultivation was carried out using a closed-flow water system with two containers, one for fermented media and one for non-fermented media. Silk worms 150 g m-3 were stocked and reared for 30 days. The results obtained from community extension are an increase in understanding of the target audience from quite good to good and very good. The result of the silk worm culture demonstration plot show that absolute biomass growth in the fermented media at 588.80 g m-2 compared to non-fermented media at 440.00 g m-2 Therefore, fish farmers can apply silk worm culture with fermented media to be able to provide natural feed of fish, independently.
Co-Authors Agus Hermawan Andini, Andini Dade Jubaedah Dewi, Santa Ferdinand Hukama Taqwa Fitriana, Eka Febri Hamidah . Harun, M Umar Ismalia, Nova Langgeng Priyanto, Langgeng Marini Wijayanti Maswala, Depi Mirna Fitrani Mochamad Syaifudin, Mochamad Mohamad Amin Mukri, Retno Cahya Rarassari, Madyasta Anggana Renih Hayati Retno Cahya Mukti Rizki, Rani Ria Sabaruddin Sabaruddin Susanto, Robiyanto H Susanto, Rubiyanto H Tanbiyaskur, Tanbiyakur Warsito Warsito Yonarta, Danang Yonarta, Danang YULISMAN