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All Journal The Journal of Experimental Life Sciences (JELS) JTSL (Jurnal Tanah dan Sumberdaya Lahan) EnviroScienteae
Soemarno Soemarno
Fakultas Pertanian, Universitas Brawijaya
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology Medicine & Pharmacology Neuroscience

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Kajian Tingkat Kesejahteraan Penambang Intan, Dan Alternatif Pilihan Pekerjaan Baru Apabila Area Penambangan Di Kecamatan Cempaka, Kota Banjarbaru Ditutup Pemerintah Bayu Wijokongko; A. Rahmansyah; Soemarno Soemarno; Bambang Joko Priatmadi
EnviroScienteae Vol 16, No 2 (2020): EnviroScienteae Volume 16 Nomor 2, Agustus 2020
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/es.v16i2.9646

Abstract

Diamond miners in kec. Cempaka Banjarbaru city has long been a mainstay and provides livelihood for traditional diamond miners. However, the income and life of traditional diamond mining communities is still economically low, compared to the profits of capital owners and borrowing mining equipment. On the other hand diamond mining that ignores environmental sustainability has damaged the environment both flora and fauna, the formation of holes and ponds former mine, muddy and polluted ground water, and moderate damaged plant land so that the cause of diamond mining in Cempaka was immediately closed by the Banjarbaru municipal government. The purpose of this study is to examine: 1) analyzing the effect of activities as diamond miners on the level of welfare of the miner's family, 2) the type of new work the miner wants, and 2) the reason for the miner to move to a new job. This research was carried out for six months, located in three diamond mining areas including Ujung Murung, Lokaas and Plumpung villages in kec. Cempaka. This location was chosen because it is a community diamond mining area that represents the profile of community diamond miners in the suburbs of Banjarbaru. The research method uses a combination of survey and quantitative methods. The selection of diamond mining villages was carried out in three selected villages including Ujung Murung, Lokaas and Plumpung villages, while respondents were selected by purposive sampling 30% of the population of the village community with a total of 90 respondents consisting of 45 miners and 45 non-miners. The parameters observed were: a)) The type of new work chosen by the miners when the mining of people's diamonds was closed by the Banjarbaru local government, and b) The reason for moving to a new type of work. The results showed that the activities as diamond miners did not significantly affect the welfare of miners' families, and did not provide decent results in increasing and increasing the welfare of diamond miners. The most desirable alternative work alternatives and selected respondents respectively were chicken farming by 37.78%, followed by duck farming, rice / crops and tilapia businesses respectively by 15.56%, and the lowest was the goat raising business and fruit cultivation by 2.23%. Meanwhile the reasons respondents chose chicken raising business as the type of business most in demand or were chosen with the reasons that are: a) easy to get seeds, b) not big capital, c) easy maintenance, and d) easy and fast marketing results.
PENDUGAAN KELEMBAPAN TANAH DENGAN MENGGUNAKAN METODE SOIL MOISTURE INDEX (SMI) DI KEBUN KOPI BANGELAN, KABUPATEN MALANG, JAWA TIMUR Almira Harwidya Irenasari; Soemarno Soemarno
Jurnal Tanah dan Sumberdaya Lahan Vol. 9 No. 1 (2022)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1236.98 KB) | DOI: 10.21776/ub.jtsl.2022.009.1.1

Abstract

Water is one of the limiting factors in the growth of coffee plants. If plants experience a lack of water, it can inhibit plant growth and, at a critical level, can lead to drought stress and plant damages. The available soil water to plants can be estimated from the level of soil moisture index. The monitoring of soil moisture status can be used in improving the management of coffee plantations. Soil Moisture Index (SMI) is a method that can be used to estimate the level of soil moisture using remote sensing technology using NDVI and LST values. The purpose of this study was to analyze the status and distribution of soil moisture at the coffee plantation; analyze the relationship between vegetation index and soil moisture; and analyzed the relationship between soil moisture status using the SMI method and soil moisture measured in coffee plantations. Results showed that the soil moisture index obtained from Landsat 8 OLI/TIRS image processing had an average value of 0.60. The average soil moisture index at the study site is 1.05. Soil moisture index from the Landsat 8 OLI/TIRS image has a significant positive effect on soil moisture at the study site (y = 7.4996x – 3.4789; R2 = 0.7146**).  It is suggested that the SMI method can be used to estimate soil moisture in the coffee plantation.
Kajian Penambahan Dosis Beberapa Pupuk Hijau dan Pengaruhnya Terhadap Pertumbuhan Tanaman Selada (Lactuca sativa L.) Yuni Agung Nugroho; Yogi Sugito; Lily Agustina; Soemarno Soemarno
The Journal of Experimental Life Science Vol. 3 No. 2 (2013)
Publisher : Postgraduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (962.208 KB) | DOI: 10.21776/ub.jels.2013.003.02.01

Abstract

Penambahan pupuk hijau pada budidaya selada anorganik bertujuan mendapatkan dosis beberapa pupuk hijau yang dapat meningkatkan pertumbuhan selada dan meningkatkan kesuburan tanah. Penelitian menggunakan Rancangan Acak Kelompok diulang tiga kali. Pemberian pupuk urea dengan dosis 100 kg.ha-1 sebagai kontrol. Perlakuan penambahan pupuk hijau adalah penambahan Tithonia 5 ton.ha-1 (OT1), 10 ton.ha-1 (OT2), Tithonia 15 ton.ha-1 (OT3); penambahan Gliricidia 5 ton.ha-1 (OG1), 10 ton.ha-1 (OG2), 15 ton.ha-1 (OG3); penambahan Cromolaena 5 ton.ha-1 (OC1), 10 ton.ha-1 (OC2), dan 15 ton.ha-1 (OC3). Pengamatan tanaman selada meliputi Bobot Segar Tanaman, Bobot Kering Tanaman, Indeks Luas Daun, Laju Pertumbuhan Tanaman, dan Laju Asimilasi Bersih. Pengamatan tanah meliputi C organik tanah, N total, KTK, pH, Bobot Isi Tanah dan CN rasio. Analisa ragam dilakukan terhadap peubah pengamatan tanaman selada dan kesuburan tanah, uji Tukey dan uji kontras dilakukan bila ada pengaruh nyata perlakuan terhadap peubah pengamatan. Uji regresi linier berganda dilakukan terhadap sekumpulan peubah kesuburan tanah terhadap hasil tanaman selada. Hasil menunjukkan bahwa penambahan Tithonia, Gliricidia dan Cromolaena sebesar 5 ton.ha-1 pada tanaman selada yang dipupuk urea meningkatkan indeks luas daun, bobot segar dan kering tanaman, dan laju pertumbuhan tanaman. Bobot segar tanaman selada tertinggi sebesar 17,18 ton.ha-1 dicapai pada penambahan Tithonia 15 ton.ha-1 yang berarti meningkat 88% dari pemupukan urea. Penambahan pupuk hijau Tithonia, Gliricidia dan Cromolaena sebesar 5 ton.ha-1 pada budidaya selada meningkatkan KTK  dan C organik tanah setelah panen. Residu C organik tanah tertinggi 2,97% meningkat 53,1% dan KTK tanah tertinggi 43,24 me.100g-1 meningkat 14,75% dari kontrol oleh penambahan Cromolaena 15 ton.ha-1. KTK tanah, N total, Bobot Isi tanah, dan pH tanah berturut-turut mempunyai pengaruh positif dan nyata terhadap bobot segar tanaman saat panen.Kata kunci: Pupuk hijau, pupuk buatan, tanaman selada.
Co-Authors A. Rahmansyah Almira Harwidya Irenasari Bambang Joko Priatmadi Bayu Wijokongko Lily Agustina Yogi Sugito Yuni Agung Nugroho