JTSL (Jurnal Tanah dan Sumberdaya Lahan)
Jurnal Tanah dan Sumberdaya Lahan (JTSL) dikelola oleh Jurusan Tanah, Fakultas Pertanian, Universitas Brawijaya, Malang. Artikel dari hasil penelitian orisinil, dan review tentang aspek manajemen sumberdaya tanah dan lahan yang mencakup, kesuburan tanah, kimia tanah, biologi tanah, fisika tanah, pedologi, sistem informasi lahan, kualitas tanah dan air, biogeokimia, struktur dan fungsi ekosistem, serta rehabilitasi tanah dan lahan dapat dimuat dalam jurnal ini tanpa dipungut biaya. Jurnal Tanah dan Sumberdaya Lahan diterbitkan dalam satu volume setiap tahun. Setiap volume terdiri atas dua nomor yang diterbitkan pada bulan JANUARI dan JULI.
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<![CDATA[ANALISIS INDEKS KEKERINGAN METODE STANDARDIZED PRECIPITATION INDEX (SPI) DAN PENGARUHNYA TERHADAP PRODUKTIVITAS PADI DAN JAGUNG ]]>
<![CDATA[Dewi Masruroh]]>;
<![CDATA[Cahyoadi Bowo]]>
<![CDATA[ Jurnal Tanah dan Sumberdaya Lahan Vol. 9 No. 2 (2022) ]]>
Publisher : <![CDATA[Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya ]]>
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DOI: 10.21776/ub.jtsl.2022.009.2.8
<![CDATA[Drought is one of the most significant impacts of the climate on agriculture, especially food crops. Standardized Precipitation Index (SPI) is an Index for droughts. The research objective was to study the relationship of SPI values to the productivity of rice and corn crops in the Situbondo district. The result showed that the value of the SPI time scale at three months is the most appropriate for the observed productivity of rice and corn. The SPI value significantly correlated with the productivity of rice plants in the Jatibanteng and Arjasa districts but did not significantly affect the productivity of corn in the Mlandingan and Situbondo districts. Furthermore, the El-Nino phenomenon reduced the rice productivity up to 3.9% and the corn productivity up to 48.1%. The La-Nina phenomenon reduced rice productivity up to 26.0% but increased the productivity of corn up to 81.7%.]]>
<![CDATA[ANALISIS DAN PREDIKSI PERUBAHAN TUTUPAN LAHAN MENGGUNAKAN MODEL CELULAR AUTOMATA-MARKOV CHAIN DI DAS WAE RUHU KOTA AMBON ]]>
<![CDATA[Heinrich Rakuasa]]>;
<![CDATA[Melianus Salakory]]>;
<![CDATA[Philia Christi Latue]]>
<![CDATA[ Jurnal Tanah dan Sumberdaya Lahan Vol. 9 No. 2 (2022) ]]>
Publisher : <![CDATA[Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya ]]>
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DOI: 10.21776/ub.jtsl.2022.009.2.9
<![CDATA[The geographical location of the Wae Ruhu watershed is in Sirimau District, which is the sub-district with the largest population in Ambon City and is also the center of economic, educational, and industrial activities; this creates economic and population growth that has the potential to trigger land conversion around this area. This study aimed to analyze land cover changes in Ambon City in 2012, 2017, 2022 and predict land cover in 2031. This study used Cellular Automata Markov Chains modeling to predict land cover changes in 2031. The results showed that the types of land cover are built and land cover. The open area continues to increase in area, while agricultural and non-agricultural areas continue to experience a decrease in area, and water bodies do not experience a decrease or increase in area. The results of land cover predictions in 2031 showed that the built-up area is 345.79 ha, open land is 121.18 ha, agricultural land is 657.35 ha, non-agricultural land is 507.65 ha, and water bodies are 11.46 ha. The results of this study are expected to be used as a reference in making policies related to spatial planning and utilization, especially the Wae Ruhu watershed and can optimize sustainable watershed management as the first step in efforts to mitigate natural disasters.]]>
<![CDATA[PENGARUH MIKROORGANISME LOKAL REBUNG DAN PLANT GROWTH PROMOTING RHIZOBACTERIA TERHADAP NITROGEN TANAH TOTAL, POPULASI BAKTERI DAN PRODUKSI KACANG TANAH (Arachis hypogaea L) ]]>
<![CDATA[Dwi Mawar Purwaningtyas]]>;
<![CDATA[Yulia Nuraini]]>
<![CDATA[ Jurnal Tanah dan Sumberdaya Lahan Vol. 9 No. 2 (2022) ]]>
Publisher : <![CDATA[Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya ]]>
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DOI: 10.21776/ub.jtsl.2022.009.2.17
<![CDATA[The aim of this study was to explore the effect of local microorganism (MOL) bamboo shoots and plant growth-promoting rhizobacteria on total nitrogen soil, total bacterial population and groundnut production. The study was carried out in March-November 2021 at the Jatimulyo Experimental Field, and Laboratory of Soil Chemistry and Biology, Faculty of Agriculture, Brawijaya University. The study used a randomized block design consisting of nine treatments with three replication. The results showed that the application of local microorganisms and plant growth-promoting rhizobacteria (MOL and PGPR) did not show significantly different results in the total soil nitrogen, but the total soil nitrogen increased by 16% of control and the total bacterial population in the soil. The application of MOL and PGPR resulted in a total bacterial population (5.03 x 106 CFU mL-1 ) which was significantly different between treatments (58% of control). The application of MOL and PGPR did not show a significantly different in groundnut production but increased groundnut production from 1.2 t ha-1 to 2.4 t ha-1 (74% of control). The best treatment was M2P1 (55.5 L ha-1 MOL and 27.7 L ha-1 PGPR), with the most optimal content of microorganisms to support the growth and development of groundnut.]]>
<![CDATA[PENGARUH PERBEDAAN TANAMAN PENAUNG TERHADAP KAPASITAS MENAHAN AIR TANAH DI KEBUN KOPI RAKYAT SUMBERMANJING WETAN ]]>
<![CDATA[Endah Umu Nur Holisah]]>;
<![CDATA[Sugeng Prijono]]>
<![CDATA[ Jurnal Tanah dan Sumberdaya Lahan Vol. 9 No. 2 (2022) ]]>
Publisher : <![CDATA[Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya ]]>
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DOI: 10.21776/ub.jtsl.2022.009.2.18
<![CDATA[Coffee is one of the farm commodities which is a source of national income and foreign exchange for Indonesia. One of the successes in the production of coffee plants is climatic conditions because it has an important role related to the water needs of plants. The availability of soil water is closely related to the ability of the soil to hold water in the soil pores (pF) and provide water for plants. Efforts to reduce the impact of climate change are the use of shade plants which will produce many litters which affect the input of water in the soil to improve soil structure and pore distribution, which will affect the soil water holding capacity. This research was conducted from March to September 2020. The research was conducted in five fields based on differences in shade plants, namely in Sumbermanjing Wetan District, Malang. The results of this research indicate that the highest soil water holding capacity is in the PK land (cocoa shade coffee garden) both at a depth of 0-20 cm and 20-40 cm because PK land has denser shade plants so that it affects the amount of water available.]]>
<![CDATA[SIMULASI PENGUKURAN LONGSOR PADA KEMIRINGAN LERENG DAN KETEBALAN SERESAH YANG BERBEDA ]]>
<![CDATA[Muhamad Afif Akbar]]>;
<![CDATA[Sri Rahayu Utami]]>;
<![CDATA[Christanti Agustina]]>
<![CDATA[ Jurnal Tanah dan Sumberdaya Lahan Vol. 9 No. 2 (2022) ]]>
Publisher : <![CDATA[Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya ]]>
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DOI: 10.21776/ub.jtsl.2022.009.2.12
<![CDATA[Most areas in Indonesia have a high risk of landslides due to geological and geographical conditions. Landslide is affected by natural factors (such as slope stability) and human-made factors (such as land use). Slope stability is influenced by morphological conditions and hydrological conditions. Land use or land cover may affect surface roughness, which determines the infiltration rate into the soil. This study was an attempt to explore the influence of slope gradient and litter thickness on time required for landslides and the volume of landslides. This research was carried out in two different locations, Agro Techno Park and the Experimental Garden of the Faculty of Agriculture. The study was conducted in eight treatments, combinations of three factors, i.e. soil texture, slope gradient, and litter thickness, using ten replications. The duration required for landslides and the volume of landslides were measured. The gradient of the slope has a significant effect on the volume of landslides. An increase in slope at any litter thickness resulted in up to three times more volume. The difference in slope also has a significant effect on the time required for landslides. The clayey texture needs two times the longer time required for landslides to occur. The slope gradient has a more dominant influence than the thickness of litter and soil texture. The effect of the thickness of the litter is getting bigger; on the other hand, the effect of soil texture is getting smaller with increasing slope.]]>
<![CDATA[SIMULASI PENGUKURAN LONGSOR PADA KELERENGAN DAN KEDALAMAN BIDANG GELINCIR YANG BERBEDA ]]>
<![CDATA[Pilya Tri Oktafiani]]>;
<![CDATA[Sri Rahayu Utami]]>;
<![CDATA[Christanti Agustina]]>
<![CDATA[ Jurnal Tanah dan Sumberdaya Lahan Vol. 9 No. 2 (2022) ]]>
Publisher : <![CDATA[Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya ]]>
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DOI: 10.21776/ub.jtsl.2022.009.2.13
<![CDATA[Landslide is one of the geological disasters that often occurs in Indonesia. Landslides can be caused by several factors; there are human factors and natural factors. In principle, landslides occur when the resisting force is smaller than the driving force. Landslides on a small and large scale can occur over time and have a fairly severe impact. Therefore, this study simulated the effect of slope and depth of slip surface on the duration and volume of landslides, which are simulated on two soils with different texture classes. Landslide simulations were conducted at Agro Techno Park and The Experimental Gardens Faculty of Agriculture. The simulation used eight treatments and ten replications consisting of three factors there are soil texture, slope and depth of slickenside. Landslide simulation was conducted using an acrylic box with a size of 100 cm x 50 cm x 75 cm with rain intensity 70 mm hour-1. The variables measured are landslides duration, landslides volume, soil texture and bulk density. Data analysis used an independent sample t-test. The result showed slope and slickenside have a significant effect on landslides duration and landslides volume. The greater the slope, the landslide occurs faster on landslides duration and the greater the volume of the landslide. The deeper slickenside has a longer landslides duration, but the volume of the landslide is larger. It showed that the greater slope has a smaller influence on the depth of slickenside and soil texture on the landslides duration and landslides volume.]]>
<![CDATA[APLIKASI MIKORIZA GRANUL DAN POWDER MENGGUNAKAN TEKNIK COATING PADA JAGUNG MANIS (Zea mays L. Saccharata) DI TANAH LATOSOL DAN REGOSOL ]]>
<![CDATA[Fahrizal Hazra]]>;
<![CDATA[Fatimah Nur Istiqomah]]>;
<![CDATA[Hetty Novita Agus]]>
<![CDATA[ Jurnal Tanah dan Sumberdaya Lahan Vol. 9 No. 2 (2022) ]]>
Publisher : <![CDATA[Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya ]]>
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DOI: 10.21776/ub.jtsl.2022.009.2.11
<![CDATA[The demand for sweet corn increases over time. To increase sweet corn production, many farmers often use inorganic fertilizers excessively. Excessive use of inorganic fertilizers can have a negative impact on soils. One of the efforts that can be made to increase sweet corn production is the provision of biofertilizers, such as mycorrhizae. This study used a completely randomized design (CRD) with two factors. The first factor was the application of fertilizer with 7 levels of treatment, namely Control; NPK fertilizer + organic fertilizer; NPK fertilizer + organic fertilizer + 2.5 g mycorrhizal granules; NPK fertilizer + organic fertilizer + 5 g mycorrhizal granules; NPK fertilizer + organic fertilizer + 2.5 g mycorrhizal powder; NPK fertilizer + organic fertilizer + 5 g mycorrhizal powder; and NPK fertilizer + organic fertilizer + mycorrhizal powder (coating). The second factor was two different soils used as growing media, namely Regosol and Latosol from Dramaga. This study was carried out in five replications. The parameters observed were plant height, stem diameter, plant biomass, root colonization, soil available P, and total P in plants. The results showed that the application of mycorrhizal powder with coating techniques increased the growth of maize plants, the level of root colonization, the availability of soil phosphorus nutrients, and plant phosphorus uptake by the plants.]]>
<![CDATA[HUBUNGAN KEMIRINGAN LERENG DAN PERSENTASE BATUAN PERMUKAAN TERHADAP LONGSOR BERDASARKAN HASIL SIMULASI ]]>
<![CDATA[Rinovian Tri Saputra]]>;
<![CDATA[Sri Rahayu Utami]]>;
<![CDATA[Christanti Agustina]]>
<![CDATA[ Jurnal Tanah dan Sumberdaya Lahan Vol. 9 No. 2 (2022) ]]>
Publisher : <![CDATA[Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya ]]>
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DOI: 10.21776/ub.jtsl.2022.009.2.14
<![CDATA[Landslide is the process of moving slope-forming material that moves out of the slope. Landslides cause adverse impacts, such as damage to residences, public facilities, death tolls, and damage to agricultural land. Factors for landslides are influenced by disturbing slope stability due to steep slopes, high rainfall intensity, and movement of soil, rock, or a mixture of both. The research was conducted at Agro Techno Park of Brawijaya University (silt loam texture soil) and the experimental field of Faculty of Agriculture Brawijaya University (clay texture soil). The landslide simulation tool used acrylic (100 cm x 50 cm x 75 cm), with an aluminum plate as a base for adjusting the slope. Artificial rain was set to be stable at an intensity of 70 mm hour-1. This study used a combination of three factors, namely soil texture (C: silt loam and J: clay); slope (L1: 40° and L2: 50°); and surface rock (B1: 25% and B2: 50%), so that there were eight treatments with ten repetitions. The landslide duration and volume were measured. The data obtained were then statistically analyzed through the normality test and the unpaired t-test. The results show that increasing slope gradient from 40° to 50° on silty loam texture with similar rock content at the soil surface resulted in 6 times faster and two times larger landslide volume. At a very steep slope, the effect of soil texture and % rocks at the surface would be smaller on landslide duration but became more significant on landslide volume. Generally, the landslide factors can be ranked from the most significant effect as follows: slope gradient, soil texture, and rocks coverage at the surface.]]>
<![CDATA[PENGARUH BATUAN DAN SERESAH PADA PERMUKAAN TANAH TERHADAP PENDUGAAN LONGSOR HASIL SIMULASI ]]>
<![CDATA[Oktaviani Putri Lestari]]>;
<![CDATA[Sri Rahayu Utami]]>;
<![CDATA[Christanti Agustina]]>
<![CDATA[ Jurnal Tanah dan Sumberdaya Lahan Vol. 9 No. 2 (2022) ]]>
Publisher : <![CDATA[Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya ]]>
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DOI: 10.21776/ub.jtsl.2022.009.2.15
<![CDATA[Landslide is a natural disaster that often occurs in Indonesia. The total of landslides from 2003 to 2018 is 363, which were caused by controlling factors and triggering factors or restraining factors. The relation between two factors (litter and rock) that cause landslide is still rarely researched. This research was carried out from September 2020 to March 2021, in Agro Techno Park Cangar and Jatimulyo Experimental Station. A simulation used an acrylic box (100 cm x 50 cm x 75 cm), with soil 20 cm thick on an aluminium plate adjusted at a slope of 50°. Rainfall intensity was set at 70 mm hour-1, using an Adjustable Water Gun (as a rainfall simulator) with a current of 2.6 amperes rotation sprayer A. There were eight combination treatments consisting of three factors. The variables measured were landslide duration and volume. Data obtained were then analyzed using an unpaired t-test. Apparently, the faster the landslide occurs, the larger the avalanche volume. Among the three factors observed (soil texture, litter and rocks at the surface), surface litter was the most determining factor for landslide duration and volume. Landslide duration and volume were far different between the two soil textural classes when there was no litter at the soil surface. In contrast, if there was 3 cm litter, landslide duration and volume were quite similar between the two soil textural classes. To a small extent, the occurrence of the rocks at the soil surface may fasten and increase landslide volume.]]>
<![CDATA[SIMULASI PENDUGAAN LONGSOR: PENGARUH INTENSITAS HUJAN PADA TANAH DENGAN TEKSTUR DAN KANDUNGAN BAHAN ORGANIK YANG BERBEDA ]]>
<![CDATA[Nur Fadillah Aunur Rofiq]]>;
<![CDATA[Sri Rahayu Utami]]>;
<![CDATA[Christanti Agustina]]>
<![CDATA[ Jurnal Tanah dan Sumberdaya Lahan Vol. 9 No. 2 (2022) ]]>
Publisher : <![CDATA[Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya ]]>
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DOI: 10.21776/ub.jtsl.2022.009.2.16
<![CDATA[Natural factors and human actions can cause landslides. Natural factors include high rainfall intensity and mountainous areas or hills with steep slopes. Human actions that can cause landslides are land conversion and inappropriate land management. This study aimed to explore the effect of rain intensity on soils with different textures and organic matter content. The landslide simulation study was conducted at the Agro Techno Park and Experimental Field, Faculty of Agriculture, Brawijaya University. This study used an acrylic box (size 100 cm x 50 cm x 75 cm) and aluminium plate as a base, which was adjusted to a slope of 50. There were eight treatment combinations consisting of three factors: soil texture (silty and clayey), rainfall intensity (70 mm hour-1 and 120 mm hour-1 ), and organic matter application (without and with organic matter application). The variables measured were landslide duration and volume. The results showed that the duration and volume of landslide materials are largerly influenced by rainfall intensity. Adding organic matter to the soil at any rainfall intensity may decrease landslide duration and volume by half compared to without organic matter application. Among the three factors examined (soil texture, organic matter application and rainfall intensity), rainfall intensity seems to be the most determining factor in landslide duration and volume.]]>
