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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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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.

ESTIMASI KANDUNGAN FOSFOR PADA TANAMAN NANAS MENGGUNAKAN UNMANNED AERIAL VEHICLE (UAV) DI PT. GREAT GIANT PINEAPPLE, LAMPUNG Revaldy Andika; Retno Suntari
Jurnal Tanah dan Sumberdaya Lahan Vol. 8 No. 2 (2021)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

PT. Great Giant Pineapple (PT. GGP) is the largest pineapple plantation company in Indonesia, with a land area of approximately Â±33,000 ha and dominated by soil types in the form of Ultisols. Soil fertility at PT. GGP tends to have relatively low nutrient content, one of which is phosphorus due to Al fixation. The nutrient P in pineapple is used to stimulate root growth, accelerate the ripening of fruit and seeds. Symptoms arising from P deficiency will experience stunted growth (stunted), and the pineapple will become imperfect. This study aimed to estimate the P nutrient content in pineapple plants using vegetation indexes in the form of GNDVI (Green Normalized Difference Vegetation Index). The study was carried out by taking aerial photographs and samples of pineapple plants in the 1 months phase before forcing and 1 months after forcing (F-1 and F+1), laboratory analysis, statistical analysis, and making distribution maps. The results showed that the vegetation index could estimate the nutrient content of P using the best estimation model. This was evidenced from the results of the correlation test which shows a very strong and real relationship of 0.81-0.82 with the regression test results of 66%-67%. In addition, the results of the validation test using the paired t-test showed that the t-count was smaller than the t-table of 2.30, which means that the estimated GNDVI vegetation index and the P nutrient content of pineapple plants showed no significant difference.

PENGARUH BIOCHAR SEKAM PADI DAN KOMPOS TERHADAP C-ORGANIK, N-TOTAL, C/N TANAH, SERAPAN N, DAN PERTUMBUHAN TANAMAN JAGUNG DI ULTISOL Geraldine Abel; Retno Suntari; Ania Citraresmini
Jurnal Tanah dan Sumberdaya Lahan Vol. 8 No. 2 (2021)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

The maize crop is an important commodity other than rice in Indonesia. Maize production reached 30 million tons in 2018. Efforts that can be made to increase maize production on Ultisols in Indonesia is by the application of biochar rice husk and compost. Biochar that has a high affinity for nutrients does not experience decay in the soil for decades, while compost can improve soil chemical properties by increasing nutrient content. The purpose of this study was to analyze the effect of the application of a combination of rice husk biochar and compost on soil chemical properties, N uptake, and growth of maize on an Ultisol. This study was conducted with six treatments. The results showed that the application of a combination of rice husk biochar and compost had an effect on increasing the C-organic and N-total in soil, but it did not affect the C/N of the incubated soil. Application of a combination of 8 t rice husk biochar ha-1 and 30 compost ha-1 significantly improved plant height, dry weight, and N uptake of maize plants.

PENGARUH APLIKASI BIOCHAR SEKAM PADI DAN KOMPOS TERHADAP SIFAT KIMIA TANAH, PERTUMBUHAN, DAN SERAPAN FOSFOR TANAMAN JAGUNG PADA ULTISOL Diva Ariella Herhandini; Retno Suntari; Ania Citraresmini
Jurnal Tanah dan Sumberdaya Lahan Vol. 8 No. 2 (2021)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Rice husk biochar and compost application are expected to improve soil chemical properties such as pH, organic carbon, and available P in Ultisol, which in turn improves crop growth and P uptake by plants. The purpose of this research was to analyze the effect of the combination of rice husk biochar and compost on the soil chemical properties (pH, organic carbon, and available P), maize growth, and P uptake by maize in an Ultisol. The research used a Randomized Block Design with six treatments (P0: control; P1: 4 t biochar ha-1; P2: 30 t compost ha-1; P3: 4 t biochar ha-1 and 30 t compost ha-1; P4: 8 t biochar ha-1 and 30 t compost ha-1; P5: 4 t biochar ha-1 and 60 t compost ha-1) and four replications. The result showed that the combination of 8 t rice husk biochar ha-1 and 30 t compost ha-1 showed a significant effect on increasing pH, organic carbon, and available P in an Ultisol, increasing the height of maize crops at 4 and 6 WAP (weeks after planting). However, it had no effect on the number of leaves and showed an effect on the increase in P uptake of maize crop.

PENINGKATAN PERTUMBUHAN, SERAPAN UNSUR HARA N, P, K SERTA PRODUKSI TANAMAN JAGUNG DI ENTISOL KALIDAWIR, TULUNGAGUNG AKIBAT APLIKASI PUPUK KANDANG SAPI DAN PUPUK NPK Al Azizu Saifulloh; Retno Suntari
Jurnal Tanah dan Sumberdaya Lahan Vol. 9 No. 1 (2022)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Entisols are newly formed soil types and are commonly found in Indonesia, with a distribution of Â±3 million ha distribution. Entisol Kalidawir has a slightly acidic pH value of 5.8 and contains very low total-nitrogen (N) and available-phosphorus (P) nutrients, calcium (Ca), sodium (Na) and magnesium (Mg) in the exchangeable base are also low and clay loam texture. Low soil nutrients and organic matter can have an impact on plant growth and production Maize is one of the most widely cultivated food crops in Indonesia. The purpose of this study was to analyze various doses of the combination of cow manure and NPK fertilizer on N, P and potassium (K) uptake, growth and production of maize. The results showed that the application of 20 t ha-1 of cow manure and 400 kg ha-1 of NPK fertilizer at observations 27 and 54 days after planting increased growth in height and number of leaves of corn plants and increased nutrient uptake of N, P, and K, respectively. Also reached 1, 0.14, and 0.82 g plant-1 and 5.52, 0.83, and 5.11 g plant-1. In addition, it produces the highest corn production of 10.53 t ha-1.

Effect of Applying Several Types of Foliar Fertilizers on Total N and K Levels in Leaves and Production of Apple (Malus sylvestris Mill.) Rome Beauty Varieties in Batu Devid Khoirul Mukhtar Hadi Wijaya; Retno Suntari; Syekhfani Syekhfani
Contributions of Central Research Institute for Agriculture Vol. 16 No. 4 (2022): October: Agriculture
Publisher : Central Research Institute For Agriculture

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (398.266 KB)

The aim of this experiment is to compare the effect of foliar fertilizer application with many nutrients (AMIDA, AMIDA+, AJIFOL and BAYFOLAN) and foliar fertilizer with single nutrient (UREA) in the increasing N and K total content of leaf and apple production. The hypotheses are (1) Application of foliar fertilizer with many nutrients having better effect to N and K total content of leaf than foliar fertilizer with single nutrient, (2) Application of foliar fertilizer with many nutrients can increase apple crop product better than foliar fertilizer with single nutrient. The experiment was carried out in the orchard of apples in Batu town from July until December 2006. Soil and leaf analysis was carried out in Soil Chemical Laboratory, Faculty of Agriculture, and University of Brawijaya. Factorial trial was arranged on Randomized Complete Block Design with 3 replications. The treatment is P1=Water, P2=UREA, P3=AJIFOL, P4=AMIDA, P5=AMIDA+ and P6=BAYFOLAN. The result of experiment showed that the application of foliar fertilizer did not give significantly effect to N total content of leaf, K total content of leaf, biomass, fruit diameter, weight and amounts every tree. Application of foliar fertilizer with many nutrients having better effect to N and K total content of leaf and can increase apple crop product than foliar fertilizer with single nutrient. AMIDA+ and AJIFOL foliar fertilizer give biggest fruit diameter (7.2 cm), while the smallest fruit diameter on BAYFOLAN foliar fertilizer (6.7 cm). AJIFOL foliar fertilizer give highest fruit production equal to 59.16 ton/ha, while fruit production lowest on BAYFOLAN treatment equal to 40.42 ton/ha.

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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