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Kajian Erosi Tanah dan Teknik Konservasi Tanah di Sub DAS Krueng Pirak Kabupaten Aceh Utara Tiar Munzir; Halim Akbar; M. Rafli
Agrium Vol 16, No 2 (2019)
Publisher : Faculty of Agriculture, Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/agrium.v16i2.1941

Land, as a natural resource, has various pressures along with the increase in the human population which has caused a decrease in the quality and land productivity. Decreasing soil quality is caused by nutrients that are washed away by rain and erosion mainly occurs on land that does not apply appropriate conservation management. The rate of erosion and sedimentation in an area illustrates the condition of the watershed management system. This study aims to predict the rate of soil erosion in the Krueng Pirak watershed in North Aceh Regency. The method used in this study is the survey method as follows: preparation, observation, data analysis and presentation of results. The results showed that the calculation of erosion predictions in the Krueng Pirak sub-watershed in North Aceh had different predictive values for each Land Mapping Unit (LMU). The highest erosion prediction is in LMU21 of 882.38 tons / ha / year with coconut vegetation, while the lowest is in LMU14 which only has 0.29 tons / ha / year. This happens because of the low carbon content of forest vegetation. For the Krueng Pirak sub-watershed area, there are several LMU areas that need to be preserved, including LMU2, LMU4, LMU6, LMU9, LMU10, LMU13, LMU15, LMU16, LMU17 and LMU21. This is because the value of predicted erosion in this area exceeds acceptable erosion values. Some conservation efforts that need to be done are in LMU 11 by integrating rubber plants with cassava plants. PL 12, SPL 13, SPL 15 by integrating the main crops with corn, upland rice, cassava, peanuts and plant residues used as mulch. Conservation in LMU16 and LMU21 is carried out by reforestation by covering the soil at the beginning of the year, while in LMU17 conservation is done by combining teak plantations with pea and green bean plants. Keywords: Sub-watershed, Prediction of Erosion, Conservation, LMU

TINGKAT LAJU INFILTRASI TANAH PADA DAS KRUENG MANE KABUPATEN ACEH UTARA Delima Delima; Halim Akbar; Muhammad Rafli
Agrium Vol 15, No 1 (2018)
Publisher : Faculty of Agriculture, Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/agrium.v15i1.685

Infiltration is the inclusion of water into the soil through the soil surface due to differences in matrix potential, gravitational potential and pressure potential Infiltration is an important component in soil conservation. It is because the efforts are fundamental in managing the relationship between rainfall intensity and infiltration capacity, as well as run off. The magnitude of surface flows due to disruption of characteristics and potential land will change the ecosystem which can reduce the function of river basin (DAS). This study aims to measure the infiltration rate in the Krueng Mane watershed in North Aceh District. The method used in this research was survey method where to measure infiltration rate using infiltrometer method. The results revealed that the highest infiltration rate was 8.20 cm / h. It was found in mixed plantation land cover, 0-3% slope and latosol soil type. The lowest infiltration rate was 1.906 cm/h, found in oil palm plantation cover, slope of 3-8% and yellow podzolic soil type (PMK). Soil texture is dominated by clay fraction, porosity value is 43,23-45,56%, moisture content is between 1.01-4,38%, C-organic content is 0,32-2,93%, soil permeability is 0, 28-11.12 cm / hour and bulk density ranged from 1.13 to 1.35 gr / cm³. The result of statistical analysis indicated that the fraction of dust had a positive correlation with the C-organic content (r = 0.851 **). The porosity of the soil is positively correlated with the permeability (r = 0.844 **).

Evaluation of Land Capability and Land Use Direction In the Krueng Peusangan Hilir Sub-watershed, Bireuen Regency Halim Akbar; Sarifuddin Sarifuddin; Sakral Hasby Puarada
Aceh International Journal of Science and Technology Vol 12, No 1 (2023): April 2023
Publisher : Graduate Program of Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/aijst.12.1.31566

The destruction of forests in watershed areas has now become a concern of many parties, resulting in floods, landslides, and droughts that continue to increase. Watershed damage is accelerated by increased utilization of natural resources due to population growth and economic development, conflicts of interest, and lack of integration between sectors between the upstream-middle-downstream areas. For this reason, it is necessary to assess land capability in a watershed so that land development follows the land capability class. The research was carried out in the Krueng Peusangan Hilir Sub-watershed, Bireuen Regency, Aceh, Indonesia, from October 2021 to February 2022, which is geographically located at 95°58''00” - 96°52''00” East Longitude and 5°06''00- 5°17 ''00" North Latitude. Land use in the study is dominated by dry land agriculture, covering an area of 19,100.28 ha with a topography area from 0-8% to 25-40%. A survey method by analyzing land capability classes at the study site was carried out for each land map unit (LMU) by comparing land conditions with the land capability evaluation Hockensmith and Steele’s criteria (overlaid of determined thematic maps). The result shows that soil erodibility decreased linearly with increasing organic matter in the soil. Soils with high organic matter content have high erodibility. For the limiting factor on slopes in land capability classes found in II, III, IV, and VI class categories that are found in all LMUs, if these LMUs are used for agricultural cultivation, soil conservation measures are needed, such as making mound terraces or canal mound terraces, planting in strips and using mulch. The results show that the land capability classes consisted of 16668.30 ha in the land capability II class, 4184.06 ha land capability in the III class, 4524.91 ha in the land capability IV class, and 190.79 ha land capability VI class with a factor inhibiting soil erodibility (medium – very high) and slopes (wavy - rather steep)

PENDAMPINGAN TEKNIK KONSERVASI TANAH PADA TANAMAN HORTIKULTURA SEBAGAI UPAYA PENYELAMATAN LINGKUNGAN KEPADA MASYARAKAT KECAMATAN PERMATA KABUPATEN BENER MERIAH Halim Akbar; Muhammad Authar ND; Sakral Hasby Puarada
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 7, No 2 (2024): MARTABE : JURNAL PENGABDIAN KEPADA MASYARAKAT
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v7i2.571-578

Budidaya masyarakat terkhusus di areal yang memiliki topografi bergelombang hingga curam jarang menerapkan teknik konservasi tanah. Teknik konservasi tanah diterapkan di areal pertanian yang memiliki lereng bergelombang hingga curam dengan maksud mengurangi tingkat laju erosi. Erosi tanah dapat menurunkan tingkat perekonomian masyarakat. Masih banyak petani yang belum mengenal Teknik konservasi tanah. Kondisi keprihatinan ini juga dapat kita saksikan disejumlah desa/kecamatan di Bener Meriah. Metode pelaksanaan pengabdian ini dirancang dengan konsep pendekatan partisipasif dan mangacu pada proses pembelajaran orang dewasa (Participatory Training/adult-learning). Dalam sosialisasi menyampaikan tentang pentingnya pemahaman konservasi tanah demi menyelamatkan lingkungan. Tim mengenalkan jenis tanah yang baik, subur yang mampu membuat komoditas pertanian semakin memiliki tingkat produktivitas yang tinggi. Tim juga memberikan pengenalan alat bor tanah yang berguna membuat lobang biopori, yang tujuannya untuk mengurangi aliran permukaan, membuat resapan air yang nanti nya akan dipakai untuk cadangan air dalam tanah dan mengurangi aliran permukaan sehingga tidak terjadi erosi. Selanjutnya, tim melakukan uji tes pupuk dengan alat Uji Soil test kit (UTK) pada sisa kulit kopi. Uji ini dilakukan dengan sisa/limbah kulit sehingga kulit kopi tidak perlu dibuang melainkan akan dipakai kembali sebagi mulsa

The Effect of Giving Aloe Vera Growth Regulators to Entres on the Success of Grafting Honey Mango Seedlings (Mangifera Indica) Umar Husein Abdullah; Ayu Maharani; Said Mulya Ihsan; Yusran Akbar; Halim Akbar
JERAMI : Indonesian Journal of Crop Science Vol 7 No 1 (2024): JIJCS
Publisher : Department of Crop Science, Faculty of Agriculture, Andalas University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jijcs.7.2.8-12.2024

This study aims to influence the administration of Aloe vera Plant Growth Regulators (PGR) on scions on the success of grafting of Honey Mango seedlings with concentrations of 2, 4, and 6 grams. The parameters observed were: Plant height was measured using a ruler by measuring from the ground surface to the tip of the highest stem. Stem diameter was measured at a height of 1 cm above the ground surface using a digital caliper. The number of leaves counted were leaves that were fully open. The calculation of the number of leaves was carried out since two weeks after planting. Stem diameter measurements were carried out since two weeks after planting and then measured once a week for seven weeks. To see the factors that affect the Treatment (M0, M1, M2, and M3) on Plant Height, Stem Diameter and Number of Leaves, multiple linear regression was used. In addition to the PGR factor, factors such as weather, nutrients and soil type greatly affect plant growth (Saputro et al., 2017; Sipayung et al., 2024). It can be seen that the M3 treatment (6 grams of PGR) had a greater effect (50.7%) compared to the M0, M1, and M2 treatments. This indicates that the more plant growth regulators given to the plants, the greater the R square value. This is in accordance with the research of Prabawa et al., (2020) which stated that soaking natural plant growth regulators had a significant effect on the viability and vigor of expired pagoda mustard seeds, and the treatment of coconut water with a concentration of 50% (Z2) gave the best effect.

Correlation Analysis Between Watering Interval, Stem Height, Stem Diameter, And Number Of Leaves In Jackfruit Seedlings (Artocarpus Heterophyllus Lamk) Umar Husein Abdullah; Nurfaizah Nurfaizah; Dewi Yana; Halim Akbar; Ruhalena Wilis; Elvrida Rosa
JERAMI : Indonesian Journal of Crop Science Vol 7 No 1 (2024): JIJCS
Publisher : Department of Crop Science, Faculty of Agriculture, Andalas University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jijcs.7.2.13-16.2024

Meanwhile, the study entitled Correlation Analysis Between Watering Interval, Stem Height, Stem Diameter and Number of Leaves in Jackfruit Seedlings (Artocarpus Heterophyllus Lamk) is guided by the amount of watering of 100 ml which is based on the recommendation for the use of the best liquid fertilizer from the research of Mamik et al., (2020). The research will be carried out in the closed room experimental garden of the Plantation Management Study Program, Politeknik Indonesia Venezuela located in Cot Suruy Village, Ingin Jaya District, Aceh Besar Regency, from May 2024 to July 2024. The temperature in the experimental garden is set at 25oC – 28oC. To see the correlation analysis between the Watering Interval, Stem Height, Stem Diameter, and Number of Leaves in Jackfruit Seedlings (Artocarpus Heterophyllus Lamk) bivariate correlation analysis was used. There is a relationship between plant height, stem diameter, and number of leaves. There is no relationship between the length of the watering interval and the variables of plant height, stem diameter, and number of leaves. Table 6 shows that there are no variables that are strongly related and have a significant effect on the watering interval, plant height, stem diameter, and number of leaves. The decreasing amount of water causes plants to be unable to grow normally.

Penilaian Kesesuaian Lahan Kualitatif Untuk Tanaman Pala Di Kecamatan Peudada Kabupaten Bireuen Irmayunita, Irmayunita; Yusra, Yusra; Akbar, Halim; Khusrizal, Khusrizal; Hafifah, Hafifah
Agrium Vol 20 No 2 (2023)
Publisher : Faculty of Agriculture, Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/agrium.v20i2.11440

Pala (Myristica fragrans Hott.) merupakan tanaman evergreen yang memiliki khasiat obat untuk mengobati berbagai penyakit dan bernilai ekonomi sehingga perlu dikembangkan dan ditingkatkan kualitas maupun kuantitasnya. Penelitian ini bertujuan untuk mengetahui kelas kesesuaian lahan kualitatif untuk tanaman pala yang dilaksanakan di Kecamatan Peudada Kabupaten Bireuen. Analisis tanah dilaksanakan di Laboratorium Ilmu Tanah Fakultas Pertanian Universitas Malikussaleh dan di Laboratorium Penelitian Tanah dan Tanaman Fakultas Pertanian Universitas Syiah Kuala. Penelitian dilaksanakan pada Juli-Agustus 2022 dengan menggunakan metode survei dengan pendekatan evaluasi lahan secara pararel. Pendekatan ini terdiri atas evaluasi kesesuaian lahan berdasarkan kriteria fisik dan evaluasi kesesuaian lahan. Metode survei yang digunakan terdiri atas 4 tahap yaitu : tahap persiapan, pendahuluan, utama, dan analisis data serta penyajian hasil. Hasil penelitian menunjukan kelas kesesuaian lahan untuk tanaman pala di Kecamatan Peudada masuk kelas S3 (sesuai marginal) dengan faktor pembatas berupa curah hujan, drainase, KB, lereng, dan bahaya erosi. Sehingga perlu dilakukan perbaikan supaya dapat meningkatkan kelas kesesuaian lahan menjadi S1 (sangat sesuai).

PENGGUNAAN BERBAGAI JENIS DAN DOSIS BIOCHAR TERHADAP EMISI KARBON DIOKSIDA, NITRAT DAN MIKROORGANISME PADA TANAH Zustika, Sri; Khusrizal; Akbar, Halim; Nasruddin
Jurnal Tanah dan Sumberdaya Lahan Vol. 12 No. 1 (2025)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtsl.2025.012.1.9

Soil serves as a medium for the absorption of greenhouse gases due to its organic carbon content; however, its capacity to absorb greenhouse gases has been declining. One of the contributors to carbon dioxide (CO2) emissions in agriculture is soil microorganism respiration, while high nitrogen (N) loss is attributed to its mobility. The application of biochar has the potential to reduce greenhouse gas emissions and improve soil quality. This study aimed to analyze the effects of different types and doses of biochar on reducing CO2 emissions, increasing nitrate levels, and enhancing microorganism populations. The research was conducted in the Soil Laboratory of Agroecotechnology, Malikussaleh University, using a completely randomized factorial design (CRD) with two treatment factors. Factor 1 was the type of biochar: (J1) rice husk biochar, (J2) giant bamboo biochar, and (J3) sweet corn cob biochar. Factor 2 was the biochar dosage: (D0) 0 tons ha⁻¹, (D1) 10 tons ha⁻¹, (D2) 20 tons ha⁻¹, (D3) 30 tons ha⁻¹, and (D4) 40 tons ha⁻¹. Parameters analyzed included CO2 emissions, soil nitrate levels, and microorganism populations. The results showed that rice husk biochar effectively reduced CO2 emissions from soil microorganism respiration to 4.08 kg CO2 ha⁻¹ hour⁻¹, increased soil nitrate levels to 8.14 ppm, and enhanced microorganism populations. The optimal biochar dosage was 30 tons ha⁻¹.

Formulation of Liquid Compound Fertilizer Enriched with Nutritional Elements for Shallot Plants on Inceptisol Reuleut Soil Fahira, Fahira; Akbar, Halim; Ismadi, Ismadi; Handayani, Selvy; Nazirah, Laila; Muliana, Muliana
International Journal of Engineering, Science and Information Technology Vol 5, No 2 (2025)
Publisher : Malikussaleh University, Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v5i2.796

Shallots (Allium ascalonicum L.) are one of the leading vegetable commodities in Indonesia that have many benefits, such as a flavouring for cooking spices, raw materials for the food industry, and traditional medicinal ingredients. Inceptisol is a soil with a low content of essential nutrients. However, it can still be pursued with the proper technological handling, one of which is the application of Liquid Compound Fertilizer (PMC). This study aims to determine the effectiveness of the liquid compound fertilizer (PMC) formula applied to Inceptisol soil on the growth and yield of shallot plants. This research was conducted at the Experimental Garden, Faculty of Agriculture, Malikussaleh University, from November to December 2023. This study used a single-factor Complete Randomized Design (RAL) with five replicates. PMC treatment consists of 5 levels, namely (K0) Control, (K1) PMC 25%, (K2) PMC 50%, (K3) PMC 75%, and (K4) PMC 100%. The results showed that applying PMC could increase the growth of shallots in the number of cloves and wet and dry crop weight with a PMC concentration of 50%. And PMC treatment of 75% can increase plant height. PMC treatment is 100% able to increase the number of leaves/plants. The application of PMC can affect the chemical properties of the soil, namely increasing the soil's pH value (H2O) by 0.84%, the soil organic by 1.5%, the total N by 2.73%, and the available P by 5.62%.

PENGGUNAAN BERBAGAI JENIS DAN DOSIS BIOCHAR TERHADAP EMISI KARBON DIOKSIDA, NITRAT DAN MIKROORGANISME PADA TANAH Zustika, Sri; Khusrizal; Akbar, Halim; Nasruddin
Jurnal Tanah dan Sumberdaya Lahan Vol. 12 No. 1 (2025)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtsl.2025.012.1.9

Soil serves as a medium for the absorption of greenhouse gases due to its organic carbon content; however, its capacity to absorb greenhouse gases has been declining. One of the contributors to carbon dioxide (CO2) emissions in agriculture is soil microorganism respiration, while high nitrogen (N) loss is attributed to its mobility. The application of biochar has the potential to reduce greenhouse gas emissions and improve soil quality. This study aimed to analyze the effects of different types and doses of biochar on reducing CO2 emissions, increasing nitrate levels, and enhancing microorganism populations. The research was conducted in the Soil Laboratory of Agroecotechnology, Malikussaleh University, using a completely randomized factorial design (CRD) with two treatment factors. Factor 1 was the type of biochar: (J1) rice husk biochar, (J2) giant bamboo biochar, and (J3) sweet corn cob biochar. Factor 2 was the biochar dosage: (D0) 0 tons ha⁻¹, (D1) 10 tons ha⁻¹, (D2) 20 tons ha⁻¹, (D3) 30 tons ha⁻¹, and (D4) 40 tons ha⁻¹. Parameters analyzed included CO2 emissions, soil nitrate levels, and microorganism populations. The results showed that rice husk biochar effectively reduced CO2 emissions from soil microorganism respiration to 4.08 kg CO2 ha⁻¹ hour⁻¹, increased soil nitrate levels to 8.14 ppm, and enhanced microorganism populations. The optimal biochar dosage was 30 tons ha⁻¹.

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