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All Journal Mitra Sains
Isrun Isrun
Universitas Tadulako
Agriculture, Biological Sciences & Forestry

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Kajian Konsentrasi Logam Merkuri (Hg) Pada Tanah Dan Serapan Tanaman Pangan Di Sekitar Kelurahan Poboya Caco Caco; Saiful Darman; Isrun Isrun
Mitra Sains Vol 9 No 2 (2021): September
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/ms26866579.2021.v9.i2.pp91-102

Abstract

Food crops are agricultural products consumed to support our daily lives. Food plants are also a source of vitamins and minerals needed by our bodies and directly play a role in improving health. Therefore, the hygiene and safety of the food we consume is very important, not to cause health problems. Soil is an importantfactor in agriculture, as a medium to grow plants and is also a part of the cycle of heavy metals. The gold mining business is often seen as the cause of environmental damage and pollution. This research was conducted at food and secondary crops farms around Poboya, where soil and plant analysis was carried out at the Laboratory of Natural Resources and Environment, Faculty of Agriculture, Tadulako University, Palu. The research was conducted from September to November 2020. The method used was survey with field observations and laboratory analysis, gradually done through pre-survey, main survey (sampling) and laboratory analysis with tactical sampling. The results showed that mercury (Hg) concentration in the sample point 1 was 0.48 - 0.52 ppm, sample point 2 was 0.62 - 0.63 ppm, sample point 3 was 0.30 - 0.35 ppm and sample point 4 is 0.25 - 0.26 ppm. While the concentration of mercury (Hg) in food crops, namely: sample point 1 is 0.31 - 0.33 ppm, sample point 2 is 0.45 - 0.48 ppm, sample point 3 is between 0.20 - 0.24 ppm and sample point 4 around 0.09 - 0.10 ppm. This shows that the content of heavy metal mercury (Hg) in the soil around Poboya has passed the tolerable threshold. Meanwhile, the concentration of mercury (Hg) in food crops at points 1 and 2 passed the critical threshold, while sample points 3 and 4 were still below the critical threshold. The farther the distance from the processing site, the less mercury content in the soil and in food crops.
Intensitas Penyakit Pembuluh Kayu (Ppk) Pada Areal Budidaya Tanama Kakao Di Desa Benggaulu Kecamatan Dapurang Kabupaten Pasangkayu Provinsi Sulawesi Barat Ismail Suaib S; Irwan Lakani; Isrun Isrun
Mitra Sains Vol 10 No 1 (2022): Maret
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/ms26866579.2022.v10.i1.pp33-41

Abstract

The aim of this research is to measure the intensity of wood vein disease and the level of soil fertility in areas of cocoa land affected by the disease and to determine the relationship between the level of maintenance (sanitation) of cocoa and the development of wood disease attacks. The analysis was carried out by calculating the incidence of disease and disease severity using the disease incidence and severity formula and the data was carried out using a simple variable correlation test to see the relationship between the sanitation level of cocoa plants. and the development of PPK disease. The results of disease incidence calculations show that land two (2) has the highest incidence of PPK disease at 69.33% and the lowest disease incidence is found in land four (4), namely 42.67%. Meanwhile, the highest level of PPK disease severity was found on land 2 at 29.47% and the lowest level of disease severity was found on land 4 at 13.73%. The results of the bivariate correlation test (r) show the person value correlation value r = 0.992 with a significance value (5%) = 0.008, which means that sanitation has a very close relationship with the development of wood disease.
Identifikasi Kesuburan Lahan Dan Pendapatan Petani Pasca Bencana Alam Gempa Bumi Gufran Gufran; Muhammad Basir; Isrun Isrun
Mitra Sains Vol 11 No 2 (2023): September
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/ms26866579.2023.v11.i2.pp103-114

Abstract

Central Sulawesi's 2018 earthquake, liquefaction, and tsunami caused liquefaction in Palu City's Balaroa and Petobo neighbourhoods. Land surface changes affected agricultural land area and soil fertility, which can affect farmers' income. Soil fertility indicates its nutrient-providing capacity. This study aims to assess agricultural land fertility, farmer income, and the best ways to recover from natural disasters. This descriptive study included all Petobo farmers affected by the earthquake and liquefaction. Purposive sampling tested 25 respondents. The field survey collected soil samples at coordinate points. Twelve soil samples were taken from six points at 20 cm and 40 cm depths. The samples were analysed at Tadulako University's Environmental and Natural Resources Analysis Laboratory. The results showed that Petobo Village's liquefaction-affected and unaffected areas had low fertility due to low C-organic and Potassium content, which prevented plants from using soil nutrients. Low soil fertility reduces crop production. Farmers earn an average of Rp. 1,422,857 per hectare, up to Rp. 4,633,929 per season per hectare. To increase soil fertility, farmers can use compost, manure, crop residues like legume plant stover, rice straw, and chemical fertilisers according to dosage.
Co-Authors Caco Caco Gufran Gufran Irwan Lakani Ismail Suaib S Muhammad Basir Saiful Darman