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All Journal Jurnal Biologi Tropis International Journal Of Science, Technology & Management (IJSTM) Hydrogen: Jurnal Kependidikan Kimia Agrimansion: Agribusiness Management & Extension Unram Journal of Community Service (UJCS) Agroteksos Proceedings Series on Physical & Formal Sciences Jurnal Pijar MIPA Jurnal Pariwisata dan Perhotelan Journal of Environmental Economics and Sustainability Jurnal Wicara Desa
M. Sarjan, M.
Fakultas Pertanian, Unversitas Mataram Jalan Majapahit 62 Mataram-Lombok-NTB
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Journal : International Journal Of Science, Technology

 1 
Mercury Adsorption Test on Several Large Groups of Soils in West Sumbawa Regency, Indonesia Hapsari Hurum, Puji; Kusnarta, IGM; Sarjan, M.; Suwardji, Suwardji
International Journal of Science, Technology & Management Vol. 5 No. 4 (2024): July 2024
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v5i4.1130

Abstract

Mercury is one of the heavy metals that has the highest toxicity in the global environment. Mercury can cause environmental damage and if it enters the food chain it can have negative impacts on human health. In overcoming the problem of mercury entering the food chain, it is very important to study the mobility and distribution of mercury in the soil. The presence of mercury (Hg2+) in soil is largely controlled by adsorption reactions with certain specific adsorption patterns. Therefore, it is very important to study mercury adsorption on several different types of soil in order to get an idea of ??how adsorption occurs in West Sumbawa Regency. The aim of this research is to determine the pattern and capacity of mercury adsorption on various large groups of soil in West Sumbawa Regency and the relationship between soil properties and mercury adsorption. The results of the research show that the adsorption isotherm pattern in the great soil groups Endoaquepts, Ustipsamments, and Udorthents more closely follows the Langmuir adsorption model, while the great soil groups Haplustepts, Hapludolls, Eutrudepts and Ustifluvents follow the Freundlich adsorption model. The major soil group that has the highest maximum mercury adsorption capacity in West Sumbawa Regency is Endoaquepts at 4,604 mg/g.
The Effect Addition of Soil Amandments and PGPR (Plant Growth Promoting Rhizobacteria) on the Growth and Yield of Cotton Plants Intercropped with Corn Plants in Dry Land of North Lombok Regency of Indonesia Siti Rohmaniati, Baiq; Sarjan, M.; Suwardji, Suwardji
International Journal of Science, Technology & Management Vol. 5 No. 5 (2024): September 2024
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v5i5.1162

Abstract

This research investigates the effect of soil amendments in the form of cow, form goat manures and PGPR biofertilizer on cotton plants intercropped with corn in the dry lands of North Lombok Regency. The research aims is to determine the growth and yield response of cotton plants due to the application of soil amendments and PGPR in an intercropped system with corn in dryland areas. The research was conducted from December 2023 to June 2024 in Andalan Village, Bayan District, North Lombok Regency. The method used is an experimental method with field trials. The design used was Randomized Block Design (RBD), incorporating two factors: soil amendment treatment (P) as the main plot and PGPR (K) concentration treatments as the subplot. Soil amendments consisted of three levels: P0 (no cow manure and no goat manure), P1 (20 tons/ha cow manure), P2 (20 tons/ha goat manure). PGPR concentration consisted of four levels: K0 (without PGPR), K1 (20 ml/liter PGPR application), K2 (30 ml/liter PGPR application), and K3 (40 ml/liter PGPR application). The research results indicated that the application of 20 tons/ha of goat manure (P2) produced the highest average across all observed parameters (plant height, number of leaves, branch number, stem diameter, and plant yield). Similarly, the application of 40 ml/liter PGPR produced the highest average for these observed parameters. Based on the results of the land equivalent ratio (LER) analysis, this integration system shows highly suitable and relevant to be applied in the dry lands of North Lombok.
Co-Authors A. Wahab Jufri Afrida, Merisa Agustin, Pradita Ayu Akhdiyat, Hendra R. Akram, Ahdiatsa Hairi ALUH NIKMATULLAH Amrul Jihadi Anton Anton Ariansani, Yunita Arum Dewi, Pervitara Asrorul Azizi Bambang Supeno, Bambang Fatimah, Sukma Fauzi, Taufik Hanif, Ikhsan Hapsari Hurum, Puji Hery Haryanto I Gusti Made Kusnarta I Ketut Ngawit, I Ketut Ilwati, Uun Jayadi, Imran Jihan, Nurul Joni Rokhmat Juniawan, L. Akhmad Kurniawan, Lalu Bisma Haris M. Taufik Fauzi, M. Taufik Muhammad Ardiansyah Putri, Nadila Ayu Rahayu, Karani Dwi Rhamdhani, Noval Ruth Stella Petrunella Thei Sarjan, Achmad Fajar Narotama  Siti Rohmaniati, Baiq Sukarso, Aa Suwardji Taslim Sjah, Taslim Thei, Ruth Stella Petrunella Trimulyanto, Athoriq Wahyuni, Srilah Nora Wardani, Suci