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PEMANFAATAN BLOTONG DAN PUPUK SINTETIK DALAM MEMPERBAIKI SIFAT KIMIA ULTISOL DAN PERTUMBUHAN BIBIT KELAPA SAWIT Ika Ayu Putri Septyani; Syafrimen Yasin; Gusmini Gusmini
Jurnal Tanah dan Sumberdaya Lahan Vol. 7 No. 1 (2020)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (463.219 KB) | DOI: 10.21776/ub.jtsl.2020.007.1.4

Abstract

Most of the oil palm cultivation in Ultisols who have low fertility, nutrient deficiency and toxicity of micronutrient. The objectives of this research were to explore the interaction between sugarcane filter-cake (blotong) compost with synthetic fertilizer to improving chemical properties of Ultisols, growth of oil palm seedling, and the benefit of compost to save on the use of synthetic fertilizer. This research used a completely randomized factorial design, with two factors and three replication. The first factor was level of compost (0, 0.5, 0.75 kg polybag-1). The second factor was level of synthetic fertilizer (0, 0.25, 0.5, 0.75, 1 recommendation). The result showed that addition of compost till 0.75 kg/polybag in Ultisols could improve chemical properties of Ultisols like pH 6.11 units, organic C by 4.27%, total N by 0.47%, exchangeable-Ca by 7.78 cmolckg-1, exchangeable-Mg by 1.01 cmolckg-1, exchangeable-K by 0.36 cmolckg-1, CEC by 31.94 cmolc.kg-1 and decreased exchangeable-Al till not measurable. Combination of compost and synthetic fertilizer gave the interaction to increasing growth of oil palm seedling and nutrient uptake like tall of stem by 65.17 cm, biomass by 46.38 g, nutrient uptake of N by 62.47g crop-1. From this research recommended addition 0.5 kg polybag-1 compost and 0.5 R synthetic fertilizer to decrease the used of synthetic fertilizer till 50%, so that support soil health and environment.
TRANSFORMASI KARAKTERISTIK TANAH SAWAH PADA LAHAN BEKAS PENAMBANGAN EMAS DI KABUPATEN SIJUNJUNG SUMATERA BARAT Elsa Lolita Putri; G Gusmini; A Adrinal; Y Yaherwandi
Jurnal Tanah dan Sumberdaya Lahan Vol. 8 No. 1 (2021)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (491.628 KB) | DOI: 10.21776/ub.jtsl.2021.008.1.21

Abstract

The process of physical and chemical properties of the former gold mining soil which is caused by the transformation of different land conditions in natural rice fields, reclaimed rice fields, and mine fields. This study aims to determine the differences in the characteristics of the former gold mining soil in natural rice fields, reclaimed rice fields and mining fields in Sijunjung Regency. There were three sampling locations with three sample points each and the samples were analyzed physically and chemically. Results of this study showed that natural paddy soil has optimal conditions for the growth of rice plants followed by reclaimed lowland soil and the worst was in mining paddy soil based on soil physical and chemical properties. The difference in soil physical properties in the form of natural paddy soil texture was smoother compared to land conditions in reclaimed rice fields and mining rice fields. This was due to intensive inundation processes, which created a plough tread layer, low volume weight accompanied by a moderate total pore space. The difference in chemical properties was in the stable pH of natural paddy soil due to inundation and high organic carbon accompanied by rice reclamation and very low organic carbon in mining soils, which would affect the growth of rice plant.
Improvement Of Ex-Gold Mining Soil Through The Application Of Rubber Leaf Litter Compost And Biochar Of Oil Palm Empty Fruit Bunches On The Growth Of Rubber Seedlings (Hevea Brasiliensis Muell. Arg.) Pb-260 Clone Widia Febriana; Gusmini; Yulistriani
Jurnal Riset Perkebunan Vol. 4 No. 1 (2023): Jurnal Riset Perkebunan (JRP)
Publisher : Jurusan Budidaya Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrp.4.1.53-64.2023

Abstract

Land damage caused by gold mining activities is mainly due to soil contamination by Mercury (Hg). Ex-gold mines are soils that have poor chemical, biological, and physical properties, resulting in a very low level of soil fertility. The objective of this study was to determine the effect of rubber leaf litter compost and biochar of oil palm empty fruit bunches to obtain the best dose recommendation in improving the ex-gold mining soil on the growth of rubber seedlings (Hevea brasiliensis Muell. Arg.). This study was designed by a completely randomized design consisted of 7 treatments and repeated 3 times. The treatments were rubber leaf litter compost at a dose of 10 tons/ha and 20 tons/ha, biochar of oil palm empty fruit bunches at a dose of 10 tons/ha and 20 tons/ha, combination of rubber leaf litter compost and biochar of oil palm empty fruit bunches at a dose of 10 tons/ha and 20 tons/ha, respectively. The results showed that the combination treatment of rubber leaf litter compost and biochar of oil palm empty fruit bunches at a dose of 20 tons/ha resulted in a soil pH value of 4,85, Al-dd 0,42 cmol/kg, C-organik 0,92%, N-total 0,053%, C/N 11,25, P-available 122,69 ppm, K-dd 0,40 cmol/kg, and reducing soil mercury by 0,01 ppm. The growth of shoot height and leaves number of rubber seedlings was obtained by the application of biochar of oil palm empty fruit bunches at a best dose of 20 tons/ha. In addition, the treatment of rubber leaf litter compost at a dose of 20 tons/ha was able to increase the leaf width of rubber seedlings (h. brasiliensis Muell. Arg.).
DISEMINASI PGPR SEBAGAI BIOAKTIVATOR DEKOMPOSISI BAHAN ORGANIK DI KELOMPOK USAHA TANI NAGARI SUNGAI ABANG KECAMATAN LUBUK ALUNG KABUPATEN PADANG PARIAMAN Haliatur Rahma; Indra Dwipa; Agustian Agustian; Yaherwandi Yaherwandi; Reflinaldon Reflinaldon; Jumsu Trisno; Armansyah Armansyah; Gusmini Gusmini; Afrima Sari; Ryan Dwi Setyawan; Rika Hariance; Dede Suhendra
Jurnal Hilirisasi IPTEKS Vol 6 No 2 (2023)
Publisher : LPPM Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jhi.v6i2.625

Abstract

Nagari Sungai Abang is one of the areas in Lubuk Alung District, one of the rice production centers in Padang Pariaman Regency. One farming group that intensively cultivates rice is the Farming Business group. The problem with the farmer groups is their ignorance of the benefits of straw as a source of organic matter in the soil. The composting process is long, so farmers always burn rice straw after harvest in preparation for planting the following season. If the burning of straw is carried out continuously, it is feared that nutrients will be deficient in the soil. This activity aims to empower Farming Business groups in Nagari Sungai Abang, Lubuk Alung District, to utilize Plant Growth Promoting Rhizobacteria (PGPR) as a bio activator in making straw compost as organic fertilizer and an alternative to addressing the problem of straw waste in Nagari Sungai Abang, Lubuk Alung. This activity has been carried out in the Farming Group of Farmers in Sungai Abang Dalam Nagari Sungai Abang, Lubuk Alung District, Padang Pariaman Regency. The method used is outreach, counseling, and training to demonstrate making PGPR suspension and compost from straw. From the activities that have been carried out, ready-to-use PGPR is obtained as a bio activator reproduced in coconut water media and used as a bio activator to speed up the composting process. The conclusion of this activity is increasing farmers' understanding of the benefits of straw as a raw material for compost and the use of PGPR as a bioactivator in making straw compost.
Sistematik Literatur Review Eksplorasi dan Identifikasi Karakteristik Padi Lokal Sumatra Barat Zulkarnaini Zulkarnaini; Irfan Suliansyah; Gusmini Gusmini; Syafrimen Yasin
HORIZON: Indonesian Journal of Multidisciplinary Vol. 2 No. 1 (2024): HORIZON: Indonesian Journal of Multidisciplinary (In-Press)
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/hijm.v2i1.665

Abstract

As much as 75% of people's daily calorie input in Asian countries comes from rice One of the provinces that has great potential as a contributor to national rice production is West Sumatra. Supported by natural resources and good climatic conditions and a large population, which is 4,846,909 people. The purpose of this article is to find out the development and mapping of research topics on Exploration and Identification of Local Rice Characteristics of West Sumatra. The type of research used is literature review using bibliometric analysis. The bibliometric analysis in this study shows a study of the evolutionary process on the research topic with local West Sumatran rice from 2010 to 2023. Vosviewer is an important programming tool for visualizing and analyzing network visualizations in mapping bibliometric analysis. Around 235 articles obtained from the Google Scholar database show that there is a use of the term West Sumatran local rice and can be a topic of future research.
Aplikasi Biokanat Guna Memperbaiki Sifat Kimia dan Menanggulangi Kontaminan Merkuri di Tanah Bekas Tambang Emas Gusmini Gusmini; Adrinal Adrinal; Feri Arlius; Elsa Lolita Putri
Jurnal Ilmu Pertanian Indonesia Vol. 29 No. 2 (2024): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.29.2.251

Abstract

Gold mining is an activity that utilizes natural resources by extracting the economic value of the deposits. Mining activities can produce hazardous pollutants, namely Hg (mercury), which can physically, biologically, or chemically damage soil quality. This study aimed to determine the role of biokanat application on the chemical properties of ex-mining land and to determine the effect of biokanat on reducing Hg levels in Kanagarian Padang Sibusuak, Sijunjung Regency. This study was a field experiment with 3 biokanat treatments (0, 10, and 20 ton/ha) with 3 replicates. The experimental 9 units were allocated based on Randomised Block Design. The data were statistically analyzed using an F-test with a 5% significance level. Then, it was continued using DNMRT if the Fcalculated > Ftable. The results showed that the dose of biokanat 20 ton/ha could increase the soil pH to 6.08, organic-C to 2.4%, P-available to 11.96 ppm, total-N to 0.23%, CEC to 2.58 cmol/kg, the basic cations especially Ca into 3.53 cmol/kg, Mg into 0.37 cmol/kg, K into 0.26 cmol/kg, and Na into 0.29 cmol/kg. Application of biokanat 20 ton/ha reduced the soil mercury (Hg) content to 15.96 ppm. Keywords: biocanat, mercury, gold mining
SISTEMATIK LITERATUR REVIEW IDENTIFIKASI LAHAN GAMBUT: ANALISIS BIBLIOMETRIK Zulkarnaini Zulkarnaini; Irfan Suliansyah; Gusmini Gusmini; Syafrimen Yasin
Agros Journal of Agriculture Science Vol 26, No 2 (2024): Edisi Juli
Publisher : Fakultas Pertanian, Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37159/jpa.v26i2.4731

Abstract

Indonesia's peatlands have the potential to be utilized for the provision of food. the purpose of this paper is to determine the development and mapping of article publications based on research topics on peatland identification. By using bibliometric analysis. The writing of this paper is descriptive qualitative using the Literature Review (LR) method. The purpose of the literature review was to search journals or literature to find the results of previous research on peatlands. Bibliographic searches were conducted using Publish or Perish (PoP) with the keyword peatland from 2010 to 2022. To map the bibliography, Vosviewer software was used. The search for articles obtained from PoP was done manually using the Google search engine. To complement the references, a literature search was also conducted through Google Scholar with the keyword Peatlands Agriculture. The bibliometric analysis in this research shows the study of the evolutionary process on the research topic with the identification of peatlands from 2010 - 2023. Vosviewer is an important programming to visualize and analyze network visualization in bibliometric analysis mapping. About 250 articles obtained from the Google Scholar database show that there is a use of the term peatland and can be a future research topic.
Potensi dan Karakteristik Gambut Padang Pariaman untuk Budiaya Padi Lokal Sumatra Barat Zulkarnaini, Zulkarnaini; Suliansyah, Irfan; Gusmini, Gusmini; Yasin, Syfarimen
Jurnal Agrotek Lestari Vol 10, No 1 (2024): April
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jal.v10i1.8750

Abstract

Keterbatasan lahan subur mengharuskan perkembangan pertanian diarahkan ke lahan-lahan marginal, salah satunya adalah gambut. Lahan gambut memiliki potensi besar bagi penyediaan panagan, oleh karena itu perlu terus dikembangkan. Penelitian ini bertujuan untuk melihat potensi dan karakteristik sifat kimia gambut yang akan dijadikan untuk lahan budidaya pertanian khususnya dalam budidaya padi lokal dalam mendukung ketahanan pangan di Sumatra Barat. Eksperimen dilakukan dengan survei ke berbagai lokasi di wilayah Kabupaten Padang Pariaman Sumatra Barat dan Laboratorium Tanah Universitas Andalas, yang dimulai bulan September hingga November 2022. Adapun metode yang dilakukan dengan mengambil sampel dilakukan sebanyak 3 titik sampel yang kemudian di komposit menjadi 1 titik sampel lokasi yang digunakan, dimana titik lokasi terbagi menjadi 3 lokasi yaitu G1 (Sunua Nan Sabaris); G2 (Pungguang Kasik) dan G3 (Parak Pisang, Sintuak Toboh) pada kedalam 0 - 20 cm. Karakteristik pH Gambut berada pada 3.68 – 4.81, Kadar abu dan C organic sekitar 16.27 – 39.13% dan 35.30 – 48.18% C dengan komposisi hara makro N, P dan K Total sebesar 0.76 – 3.52% N; 5.58 – 11.79% P dan 1.74 – 2.31% K. Komposisi hara mikro Fe, Cu dan Zn sebesar 2.71 – 3.03 ppm Fe; 0.23 – 0.26 ppm Cu dan 0.21 – 0.31 ppm Zn. Berdasarkan karakteristik sifat kimia Gambut yang terdapat pada beberapa lokasi di Kabupaten Padang Pariaman Sumatra Barat cocok untuk ditanami komoditas tanaman pangan seperti padi. Namun, perlu peningkatkan karakteristik sifat kimia Gambut pada lokasi G1 (Sunua Nan Sabaris) untuk dikembangkan dalam budidaya padi lokal Sumatra Barat.
Pengaruh Persepsi Kesesakan Terhadap Psychological Well-Being Pada Penghuni Rumah Susun Di Kota Makassar Gusmini Gusmini; Basti Tetteng
Mandub : Jurnal Politik, Sosial, Hukum dan Humaniora Vol. 1 No. 3 (2023): SEPTEMBER : Mandub: Jurnal Politik, Sosial, Hukum dan Humaniora
Publisher : STAI YPIQ BAUBAU, SULAWESI TENGGARA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59059/mandub.v1i3.419

Abstract

Perception of crampedness is an individual's subjective feeling of limited space due to the density of the physical environment. This study aims to determine the effect of perceptions of overcrowding on psychological well-being in flat occupants in Makassar City. The population of this study were residents of the Mariso Flats in Makassar City. The number of research subjects was 158 people who were taken using the accidental sampling technique. The characteristics of the subjects in this study were residents of flats aged 18-40 years. The data analysis method used in this study is simple linear regression analysis. The results of the data analysis that has been carried out show that there is an influence of perceptions of overcrowding on psychological well-being of the residents of flats in Makassar City (p=0.000 R square -0.130). The effective contribution of the distress variable to the psychological well-being variable is 13.0%, which is shown from the value of R square = 0.130.
Sistematik Literatur Review Eksplorasi dan Identifikasi Karakteristik Padi Lokal Sumatra Barat Zulkarnaini, Zulkarnaini; Suliansyah, Irfan; Gusmini, Gusmini; Yasin, Syafrimen
HORIZON: Indonesian Journal of Multidisciplinary Vol. 2 No. 1 (2024): HORIZON: Indonesian Journal of Multidisciplinary
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/hijm.v2i1.665

Abstract

As much as 75% of people's daily calorie input in Asian countries comes from rice One of the provinces that has great potential as a contributor to national rice production is West Sumatra. Supported by natural resources and good climatic conditions and a large population, which is 4,846,909 people. The purpose of this article is to find out the development and mapping of research topics on Exploration and Identification of Local Rice Characteristics of West Sumatra. The type of research used is literature review using bibliometric analysis. The bibliometric analysis in this study shows a study of the evolutionary process on the research topic with local West Sumatran rice from 2010 to 2023. Vosviewer is an important programming tool for visualizing and analyzing network visualizations in mapping bibliometric analysis. Around 235 articles obtained from the Google Scholar database show that there is a use of the term West Sumatran local rice and can be a topic of future research.