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All Journal Journal of Tropical Soils AGRIKA JTSL (Jurnal Tanah dan Sumberdaya Lahan) Journal of Degraded and Mining Lands Management AGRIVITA, Journal of Agricultural Science Contributions of Central Research Institute for Agriculture

Retno Suntari

Brawijaya University

Author-ID : 484008

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science

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PEMANFAATAN BEBERAPA BAHAN PELAPIS PADA UREA TERHADAP NITROGEN TERSEDIA DAN SIFAT KIMIA DI VERTISOL PASURUAN Muhammad Salman; Retno Suntari
Jurnal Tanah dan Sumberdaya Lahan Vol. 10 No. 1 (2023)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Vertisols have a comparatively low total N content till they are needed, so they need extra external fertilizers within the sort of fertilizers. The coating is one methodology for making fertilizer within the sort of slow-release. The aim of this study was to analyze the impact of zeolite, sago, a mixture of chitosan, and potato flour as a coating for urea fertilizer on the provision of available N and also the chemical properties of Vertisols Pasuruan. This study used a completely randomized design (CRD) with 6 treatments consisted of K (no coating), P1 (zeolite 10%), P2 (sago 2%), P3 (chitosan 3% : potato starch 8%), P4 (zeolite 20%), P5 (sago 4%) and P6 (chitosan 6% : potato starch 6%) with 3 replicates. The results showed that the application of several coating materials on urea had a significant effect on the rate of nitrogen release in the form of ammonium and nitrate from week 1 to week 4. P6 (chitosan 6%: potato starch 6%) treatment showed the lowest results in the release rate of ammonium by 12.517 ppm, which was categorized as high and nitrate by 3.005 ppm, which was categorized as low. The urea coating treatment resulted in lower ammonium and nitrate than the uncoated treatment. The application of several coating materials on urea had a significant effect on the pH value of the soil and cation exchange capacity (CEC). The P6 treatment showed the highest result on the soil pH of 5.363 and CEC values of 41.878 me 100 g-1.

PENGARUH DOSIS BERBAGAI SUMBER PUPUK KALSIUM TERHADAP PERTUMBUHAN AWAL TANAMAN NANAS DI PT. GREAT GIANT PINEAPPLE LAMPUNG Arin Novitasari; Retno Suntari; Priyo Cahyono
Jurnal Tanah dan Sumberdaya Lahan Vol. 6 No. 1 (2019)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Characteristic of Ultisol in PT. Great Giant Pineapple is very acidic soil and low of macro and micro nutrient content. This condition can be solved by liming so pineapple plant can growth optimally. There are many material of lime with different shape and size. The purpose of this study was to analyze calcium source with the right doses that can increase pH, provide nutrient available and decrease any toxic elements. This study used a completely randomized design with 18 treatments. The treatment included D0, C0, T0 (control), dolomite with 1, 2, 3, 4 and 5 t ha-1 doses (D1, D2, D3, D4, D5), Granular Calcite with doses of 100, 200, 300, 400, and 500 kg ha-1 (C1, C2, C3, C4, C5) and Suspension of Calcite with doses of 75, 100, 125, 150, 175 L ha-1 (T1, T2, T3, T4, T5). The results showed that application of calcium sources had significant effect on soil pH, Al saturation, Fe available, exchangeable-Ca, exchangeable-Mg, CEC, Base Saturation, available-P, total-N, and exchangeable-K in several time of observations. Application of 5 t dolomite ha-1 increased soil pH, and decreased Al saturation and available-Fe, and it also increased Ca and Mg contents. However, application of dolomite had no significant effects on N, available-P and exchangeable-K at several time of observations. The initial growth parameter was not significantly affected by application of dolomite.

EFEK APLIKASI KOMPOS SAMPAH DAN KOTORAN KAMBING TERHADAP SERAPAN UNSUR HARA KALIUM DAN HASIL TANAMAN BAWANG MERAH PADA TANAH TERDAMPAK ERUPSI GUNUNG KELUD Bagas Septya Pradana; Retno Suntari
Jurnal Tanah dan Sumberdaya Lahan Vol. 6 No. 1 (2019)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

The soil containing volcanic ash from Mount Kelud was contain nutrients in the form that was not available for the soil, so that the soil diffficult to process. One of the efforts to solve that is by organic matter application that can improve availability of nutrient in the soil and improve plant growth. The purpose of this study was to evaluate the effect of compost application on potassium uptake, and yield of onion on Mount Kelud eruption-impacted soil. This study used a randomized block design with five treatments and three replications. The treatments tested were K0 = 100% inorganic fertilizer; K1= 100% goat manure compost; K2= 100% garbage compost; K3= 50% inorganic fertilizer + 50% goat manure compost; and K4= 50% inorganic fertilizer + 50% garbage compost. The results showed that application of waste compost and goat manure compost significantly affected sodium uptake, but it did not significantly affect potassium uptake compared to inorganic fertilizer application. Furthermore, application of waste compost and goat manure compost significantly affected plant heightÂ and number of leaves, but it did not significantly affect number of tillers, number of bulbs, diametre of bulbs, fresh weight of bulbs and dry weight of bulbs of red onion plant, compared to inorganic fertilizer application. Application of 20 t goat manure compost ha-1 gave the highest number of leaves (67), and plant height (49.77 cm).

PENGARUH APLIKASI KOMPOS AMPAS KOPI TERHADAP PERUBAHAN SIFAT KIMIA ANDISOL NGABAB, KABUPATEN MALANG Wenry Siahaan; Retno Suntari
Jurnal Tanah dan Sumberdaya Lahan Vol. 6 No. 1 (2019)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Application of spent coffee ground compost is expected to improve soil chemical properties of Andisol Ngabab which has low C-organic and N contents, very low P content, and moderate content of Na content. The purpose of this study was to explore the effect of application of Robusta spent coffee grounds compost application on soil chemical properties of an Andisol. This study used a completely randomized design with five treatments and three replications. The treatments tested were P0 (control, without application of spent coffee ground compost), P1 (50% dose of spent coffee ground compost aplication = 10 t ha-1), P2 (100% dose of spent coffee ground compost application = 20 t ha-1), P3 (150% dose of spent coffee ground compost application = 30 t ha-1), and P4 (200% dose of spent coffee ground compost application = 40 t ha-1). The results of this study showed that the application of spent coffee ground compost with a dose of 150%= 30 t ha-1 (P3) and dose of 200%= 40 t ha-1 (P4) on an Andisol of Ngabab significantly increased pH, organic-C, total-N, available-P, exchangeable-K (in 2, 6 and 8 weeks), exchangeable-Na, and CEC (in 4, 6 and 8 weeks) compared to control treatment or without application of spent coffee ground compost (P0).

PENGARUH RESIDU UREA DAN KOMPOS DENGAN APLIKASI KOMPOS KOTORAN KAMBING TERHADAP SIFAT KIMIA TANAH DAN PERTUMBUHAN TANAMAN OKRA PADA TANAH TERDAMPAK LETUSAN GUNUNG KELUD Akhmad Sihab Ulumuddin; Retno Suntari
Jurnal Tanah dan Sumberdaya Lahan Vol. 6 No. 1 (2019)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

A study that was aimed at elucidating the effect of Urea and compost residue with application goat manure compost on soil chemical properties and growth of Okra (Abelmoschus esculentus) on soil impacted by eruption of Mount Kelud, was conducted in a glasshouse. Treatments tested in this study were applications of residue urea and compost with application of goat manure (1/3 weight planting media) A1: 2/3 residual soil (100% urea); A2: 2/3 residual soil (100% poultry manure compost) A3: 2/3 residual soil (100% cow manure compost); A4: 2/3 residual soil (50% urea + 50% poultry manure compost); A5: 2/3 residual soil (50% urea + 50% cow manure compost). The five treatments were arranged in a completely randomized design with three replicates. Â The results showed no significant effect on soil chemical properties of pH, C-organic, and CEC of the Mount Kelud eruption-impacted soil at 4 and 8 weeks after incubation (WAI), except for C/N ratio at 4 WAI. However, urea and compost residues with application goat manure had significant effect on plant height at 4, 6, and 8 weeks after planting (WAP), and number of leaves at 8 WAP. A3 (2/3 residual soil 100% cow manure compost + 1/3 goat manure) gave the highest number of leaves (13) at 8 WAP, and A5 (2/3 residual soil 50% urea + 50% cow manure compost + 1/3 goat manure), and gave the highest of plant height respectively with 28,83 cm; 47,33 cm; 55,17 cm at 4, 6, and 8 WAP.

EFEK PUPUK BOKASHI TERHADAP KETERSEDIAAN UNSUR BASA (K, Na, Ca, dan Mg) PADA INCEPTISOL KARANGPLOSO MALANG Arumita Rohmah; Retno Suntari
Jurnal Tanah dan Sumberdaya Lahan Vol. 6 No. 2 (2019)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

The Inceptisol of Karangploso Malang has low pH (5.33) and low C-organic content (1.39%). Efforts can be made to improve these problems through land management with the use of organic fertilizer. Bokashi is one of the composts produced from fermentation process with EM4 which can improve soil chemical properties, because bokashi has elements of N, P, K, Na, Ca, and Mg respectively 1.22%, 0.53%, 1.71%, 5.64%, 0.62% and 2.01%. This study was carried out at the Greenhouse and Chemical Laboratory of Soil Science Department, Agriculture Faculty, Brawijaya University. The design of this research was a completely randomized design with O0 treatment (control); O1 (Bokashi 5 t ha-1); O2 (Bokashi 10 t ha-1); O3 (Bokashi 15 t ha-1); O4 (Bokashi 20 t ha-1); O5 (Bokashi 25 t ha-1); O6 (Bokashi 30 t ha-1) which was repeated 3 times. Parameters measured were pH, CEC, BS, K-exch, Na-exch, Ca-exch, and Mg-exch on 1 MAI (month after incubation), and 2 MAI. The results showed thatÂ increasing the dose of bokashi application at 1 MAI significantly increased K-exch and Mg-exch compared to the control treatment, but did not significantly affect pH, CEC, BS, Na-exch, and Ca-exch. Furthermore, increasing the dose of bokashi application on 2 MAI significantly increased pH and K-exch compared to the control treatment, but did not significantly affect CEC, BS, Na-exch, Ca-exch, and Mg-exch.

PENGARUH APLIKASI BOKASHI TERHADAP DINAMIKA KETERSEDIAAN N, P, DAN S PADA INCEPTISOL KARANGPLOSO, MALANG Ursulin Sacer Setyastika; Retno Suntari
Jurnal Tanah dan Sumberdaya Lahan Vol. 6 No. 2 (2019)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

The Inceptisol of Karangploso has low soil pH, low organic matter (OM), medium total soil N, very low C/N ratio, and low available sulphur- that cause low soil productivity. The application of bokashi preserves strongly productivity and organic matter in the soil. This research aimed to determine the effect of bokashi application in improving soil chemical properties and N, P, S-available in an Inceptisol of Karangploso. The experiment was conducted in greenhouse of Facultyof Agriculture, Brawijaya University using a completely randomized design with 7 treatments and 3 replications. The treatments consisted of O1 = dose of 5 t ha-1 Â + Â½ A, O2 = dose of 10 t ha-1 Â + Â½ A, O3 = dose of 15 t ha-1 + Â½ A, O4 = dose of 20 t ha-1 Â + Â½ A, O5 = dose of 25 t ha-1 Â + Â½ A, and O6 = dose of 30 t ha-1 Â + Â½ A. The results showed that the increasing dose of bokashi significantly increased soil pH (from 5.1 to 5.4), C/N ratio (from 9.64 to 9.93), P-available (from 141 to 142.6 ppm P) at 60 DAI (days after incubation), total N (from 0.21 to 0.24% at 30 DAI and 0.18% to 0.24% at 60 DAI ) and NO3- (from 24.96 to 65.47 ppm at 30 DAI and 14.91 ppm to 39.20 ppm at 60 DAI) compared to the control, but it had no significantly effect on organic carbon, OM, SO42- in soil. The correlation test showed that there was a strong and positive correlation between pH and NO3- (r=0,77*), organic carbon and NO3- (r=0,63), organic carbon and P-available (r=0,78*), OM to NO3- (r=0,70*), and OM to P-available (r=0,86*).

PENGARUH APLIKASI PUPUK POLYHALITE DAN KCl TERHADAP KADAR K DAN PERTUMBUHAN BIBIT TANAMAN JERUK PAMELO (Citrus maxima) DI KEBUN PERCOBAAN BALITJESTRO, BATU Retno Suntari; S Sutopo; Aryo Gilang Maudyansa
Jurnal Tanah dan Sumberdaya Lahan Vol. 7 No. 1 (2020)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

There are still many farmers in Indonesia who use a single fertilizer such as N, P, or K fertilizer. While the needs of plant nutrients are not only that nutrients but also other macronutrients. One of single fertilizer used is KCl fertilizer which only contains essential K nutrients and micro Cl nutrient elements. To overcome this problem, another source of K fertilizer that does not contain Cl is used, especially in Pamelo citrus nurseries. POLY4 fertilizer is used as a source of K nutrients, because it has an excess of containing several nutrients such as K (14%), Ca (17%), Mg (6%), and S (19%). This research was conducted at the BALITJESTRO screen house and the Soil Department Laboratory, Faculty of Agriculture, Brawijaya University. The research design used was a completely randomized design with 5 treatments i.e P0 (100% MOP), P1 (50% POLY4 + 50% MOP), P2 (100% POLY4), P3 (150% POLY4), and P4 (200% POLY4). Parameters of this research were plant height, numbers of leaf, soil pH and exchangeable K, and K content in plant. Result of this study indicated that application of 50% POLY4 + 50% MOP (642 kg ha-1 POLY4 + 150 kg ha-1 MOP) significantly affected the height and number of leaves of Pamelo orange seedlings in 12 weeks, respectively 6.39% and 13.6 % compared to 100% MOP/control (300 kg ha-1 MOP). Application of 150% POLY4 (1,927 kg ha-1 POLY4) significantly increased plant K level by 9.40% compared to control (300 kg ha-1 MOP). Application of POLY4 fertilizer had no significant effect on pH and exchangeable K. The best dose of fertilizer in Pamelo citrus nurseries is the application of POLY4 642 kg ha-1 POLY4 + 150 kg ha-1 MOP (50% POLY4 + 50% MOP).

PENGARUH APLIKASI KOMPOS Crotalaria juncea L. TERHADAP KETERSEDIAAN DAN SERAPAN CA, Mg, S OLEH JAGUNG MANIS (Zea mays saccharata Sturt) DI ENTISOL WAJAK, MALANG Retno Suntari; Muhammad Abdi Guna Wiyahya
Jurnal Tanah dan Sumberdaya Lahan Vol. 7 No. 2 (2020)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Entisol is a type of soil at the initial development stage and has a texture dominated by sand fraction. This causes a decrease in soil quality and can reduce crop production. This compost of leguminase plants can play a role in improving soil chemical properties. The purpose of this research was to determine the effect of Crotalaria juncea L. compost application on the availability of secondary macro nutrients Ca, Mg, and S, and uptake of Ca, Mg, and S by sweet corn plant in Entisol, Wajak. Treatments tested were C0 (Urea 100%), C1 (Compost Crotalaria juncea L. 100% + Urea 75%), C2 (Compost Crotalaria juncea L. 100% + Urea 75%), C3 (Compost Crotalaria juncea L. 100%), C4 (Compost Crotalaria juncea L. 200%). The five treatments were arranged in a completely randomized design with three replications. The results showed that the application of Crotalaria juncea L. compost (20 t ha-1) significantly increased the availability of Ca, Mg and S on 12 weeks by 41.6%, 96.71% and 133.78%, respectively. The application of Crotalaria juncea L. compost (20 t ha-1) did not significantly increase uptake of Ca, Mg and S.

PENGARUH APLIKASI PUPUK SULFUR DAN JUMLAH SIUNG TERHADAP PERTUMBUHAN DAN PRODUKSI BAWANG PUTIH (Allium sativum L.) SERTA RESIDU SULFUR DI INCEPTISOL KARANGPLOSO Balqis Noor Hanifah; Retno Suntari; B Baswarsiati
Jurnal Tanah dan Sumberdaya Lahan Vol. 8 No. 1 (2021)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Garlic (Allium sativum L.) is a plant that is often used by Indonesian people in various ways. One of the reasons for the low productivity of garlic in Indonesia is the insufficient use of superior varieties and low S elements in the soil. Furthermore, the use of the number of cloves planted per planting hole will determine the number of populations so that it will affect the growth and production of garlic. The aim of this study was to analyze the effect of S fertilizer and the number of cloves on the growth and production of garlic (Allium sativum L.) and also analysis S residue from S fertilizer and number of cloves. This study used a randomized block design with nine treatment combinations, three levels of sulfur fertilizer doses (0 kg S ha-1, 140 kg S ha-1 and 200 kg S ha-1) and the number of cloves (1 clove, 2 cloves and 3 cloves). The results showed that the application of sulfur fertilizer and the number of cloves had no significant effect on growth parameters (plant height and number of leaves) in garlic plants. However, it significantly increased the diameter of bulbs, fresh bulbs weight and dry bulbs weight respectively by 13.39%, 140.72% and 93.64% to 24.29 mm, 5.97 g plant-1 and 4.57 g plant-1 in the treatment of one number of clove and 140 kg of S ha-1 compared to the treatment of one clove and without S. As well as significant effect on SO42- residues and total S with the highest yield respectivelyÂ 299.3 ppm and 910 ppm and the lowest yield was obtained in the treatment without S fertilizer.

Co-Authors Aisyah Hairani Aulia Akhmad Sihab Ulumuddin Al Azizu Saifulloh Ania Citraresmini Ania Citraresmini Arin Novitasari Arumita Rohmah Aryo Gilang Maudyansa B Baswarsiati Bagas Septya Pradana Balqis Noor Hanifah Christanti Agustina Devid Khoirul Mukhtar Hadi Wijaya Diva Ariella Herhandini Geraldine Abel Madyaratri, Raditya Luh Mochammad Munir Muhammad Abdi Guna Wiyahya Muhammad Salman Niken R Wandansari Novalia Kusumarini Priyo Cahyono Revaldy Andika Rurini Retnowati Rurini Retnowati S Sutopo S Syekhfani sa'diyah, zenny faridatus Saputra, Iwan Sekar Mariam Hapsari Soemarno Soemarno Soemarno Soemarno Soemarno Soemarno Soemarno Soemarno Sri Rahayu Utami Sugeng Prijono Syahrul Kurniawan Ursulin Sacer Setyastika Wenry Siahaan Yulfita Farni Zaenal Kusuma Zaenal Kusuma zenny faridatus sa'diyah

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