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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Agrohorti Bulletin (e-Journal) Jurnal Ilmu Pertanian Indonesia Jurnal Manajemen dan Agribisnis Jurnal Ilmu-Ilmu Pertanian Indonesia JURNAL AGRONIDA JURNAL PANGAN Jurnal Tanah dan Iklim

Sugiyanta

Departemen Agronomi Dan Hortikultura, Fakultas Pertanian, Institut Pertanian Bogor

Author-ID : 2432411

Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Social Sciences

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Studi Serapan Hara N, P, K dan Potensi Hasil Lima Varietas Padi Sawah (Oryza sativa L.) pada Pemupukan Anorganik dan Organik , Sugiyanta; Fred Rumawas; M. A. Chozin; Wahju Qamara Mugnisyah; Munif Ghulamahdi
Indonesian Journal of Agronomy Vol. 36 No. 3 (2008): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

The objective of the research was to study the nutrition uptake (nitrogen, phosphorus, and potassium,) and the grain production of five rice varieties representing modern, new plant type and local varieties under application of inorganic, organic and combined inorganic-organic fertilization. Five rice varieties were Way Apoburu and IR-64 (modern varieties), Midun and Sarinah (local varieties from Sukabumi and Garut, respectively), and Fatmawati (new plant type variety). Five fertilizer treatments were (1) full recommendation dosage of inorganic fertilizer (250 kg urea/ha, 100 kg SP-36/ha, and 100 kg KCl/ha), (2) ¼ recommendation dose of inorganic fertilizer + rice straw, (3) ½ recommended dose of inorganic fertilizer + rice straw, (4) rice straw, and (5) green manure from Crotalaria juncea biomass. The results showed that there was no specific response of rice varieties to the fertilization treatments, even though there was specific nutrient uptake pattern and yield of each variety, and there was significant effect of fertilizer treatment to nutrient uptake and rice yield. Nutrient uptake and grain yield indicated that nutrient imobilisation occurred at 1stseason, however the availability of N, P, K nutrients increased at 2nd and 3rdseason on rice straw and green manure treatments. Rice straw application caused lower nutrient uptake and grain yield than full dosage inorganic fertilizer at 1st season but both were not significantly different at 2nd and 3rdseason. Application of rice straw with ½ dosage of inorganic fertilizers was not significantly different from full dosage of inorganic fertilizers in nutrient uptake and grain yield. Modern varieties showed higher level of N absorption than that of new type variety although it was not significantly different with that of local varieties, whereas the P and K uptake of modern varieties was lower than that of local and new plant type varieties. The modern varieties also showed higher level of dry grain per hill than that of local and new plant type varieties. However yield per ha of all varieties tended to be similar. Key words: uptake, efficiency, mineral nutrition, variety, lowland rice

PENGARUH ALGIFERT DAN CYCOCEL TERHADAP PERTUMBUHAN DAN PRODUKSI BAWANG PUTIH (Allium sativum L.) VARIETAS LUMBU PUTIH , Sugiyanta; , Sudarsono; Siti Mufidah
Indonesian Journal of Agronomy Vol. 23 No. 1 (1995): Buletin Agronomi
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

This experiment was conducted to determine the effect of plant growth regulator (Cycocel) and algifert in growth and bulb production of garlic (Allium sativum L.) cv. 'Lumbu Putih'. The experiment was set up randomized complete block design. Treatments were consisted of combination of algifert and cycocel applications. Algifert treatments consisted of spraying 0 (A0), 2 (A1), 4 (A2), 6 (A3) and 8 (A4) ml/l algifert solution on to garlic plants, while cycocel treatments consisted of spraying 0 (C0), 500 (C1), 1000 (C2) and 1500 (C3) Cycocel solution. Algifert spraying was conducted at 3, 5, 7, 9, 11 week after planting, while cycocel was at 8 week and 10 week after palnting. Result of the experiments indicated algifert and cycocel treatments did not significantly affect growth and bulb yield of garlic. However, interaction affect of algifert and cycocel significantly reduced total number of cloves of each garlic bulb. Comparation mean analyzis showed A2C3 (algifert 4 ml/l with cycocel 1500 mg/l) treatment resulted in significantly lower total number of cloves of each garlic bulb than A2C0 or A2C1 (algifert 4 ml/l with or with out cycocel 500 mg/l) treatments, respectively. Treatment combination A2C3 significantly reduced the total number of cloves each bulb. However, the reduction of total number of cloes was not followed by increased in the size of the cloves. The result of the experiment also indicated the presence of positive correlation among parameters recorded. The total weight of harvested biomass were positively correlated with diameter of the bulb, number of clove, dry weight of the bulb, and dry matter contain of the bulb, respectively.

Efisiensi Serapan Hara dan Hasil Padi pada Budidaya SRI di Persawahan Pasang Surut dengan Menggunakan Kompos Diperkaya Fakhrur Razie; Iswandi Anas; Atang Sutandi; , Sugiyanta; Lukman Gunarto
Indonesian Journal of Agronomy Vol. 41 No. 2 (2013): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

There are two main problems when system of rice intensification (SRI) cultivation is carried out at tidal areas, e.g. the presence of Fe which is potentially toxic to plants and low nutrients availability. Utilization of Azotobacter-enriched compost is a choice to overcome iron toxicity as well a source of nutrients. The aims of this research were to study the effect of Azotobacter enriched compost to reduce the rates of inorganic fertilizers applied, to increase the efficiency of N, P, and K uptake, and to increase plant growth and yield. Two rice cultivation methods were applied namely SRI and conventional rice cultivation methods on tidal lands (rice fields) of South Kalimantan. A completely randomized block design with two factors was applied. The main plots were SRI and conventional rice cultivation, and as subplots were eight types of fertilizer that is a combination between Azotobacter-enriched compost with inorganic fertilizers rates. The results showed that soil nutrient availability, uptake and efficiency of N, P, and K with SRI technique was higher than conventional cultivation. Azotobacter- enriched compost on the tidal land (rice fields) could reduce the use of N and K fertilizer by 25%. Furthermore, the efficiency of N and P uptake in enriched compost with 75% of fertilizer N, P, and K were not different with enriched compost with 75% of fertilizer. Ciherang rice yields with SRI cultivation was approximately 22% higher compared to that from conventional rice cultivation. Keywords: Azotobacter-enriched compost, conventional rice cultivation, inorganic fertizers

Hubungan Karakter Daun dengan Hasil Padi Varietas Unggul Titin Budi Wahyuti; Bambang Sapta Purwoko; Ahmad Junaedi; Sugiyanta .; Buang Abdullah
Indonesian Journal of Agronomy Vol. 41 No. 3 (2013): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Penelitian ditujukan untuk mempelajari hubungan karakter daun dengan hasil padi varietas unggul, dan dilaksanakandi kebun percobaan Balai Besar Penelitian Tanaman Padi, Muara, Bogor pada bulan Desember 2010 sampai Juni 2011.Percobaan menggunakan rancangan kelompok lengkap teracak dengan empat ulangan dan menggunakan 12 padi varietasunggul sebagai perlakuan. Varietas yang digunakan adalah Rojolele dan Pandan Wangi (varietas unggul lokal/VUL); IR64 dan Ciherang (varietas unggul baru/VUB); Fatmawati, Cimelati, galur BP360 dan B11143 (padi tipe baru/PTB);serta Maro, Rokan, SL-8 SHS, dan PP1 (hibrida). Hasil penelitian menunjukkan Galur B11143, Maro, Cimelati, dan Rokanmemberikan hasil gabah tertinggi. Tingginya hasil berhubungan dengan karakter sudut tiga daun bagian atas, luas daunbendera, kandungan klorofil, dan kandungan gula daun bendera. Karakter sudut tiga daun bagian atas dan luas daunbendera berkorelasi negatif dengan hasil. Kandungan klorofil dan gula daun bendera tahap berbunga dan pengisian bijiberkorelasi positif dengan hasil.Kata kunci: hasil, karakter daun, padi varietas unggul

Pemanfaatan Mikrob Pelarut Fosfat untuk Mengurangi Dosis Pupuk P Anorganik pada Padi Sawah Mutiara Dewi Puspitawati; Sugiyanta .; Iswandi Anas
Indonesian Journal of Agronomy Vol. 41 No. 3 (2013): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

ABSTRAKMikrob pelarut fosfat (MPF), meliputi bakteri pelarut fosfat (BPF) dan fungi pelarut fosfat (FPF), berpotensi dalammeningkatkan ketersedian P dan meningkatkan efisiensi penyerapan P dari pupuk P anorganik. Tujuan penelitian adalahmengisolasi dan menyeleksi MPF, menguji efektivitas MPF dalam meningkatkan P tersedia dan mengurangi dosis pupuk Panorganik pada sistem budidaya pengelolaan tanaman terpadu (PTT) dan system of rice intensification (SRI). Percobaanlaboratorium meliputi isolasi dan seleksi MPF, uji indeks pelarutan P, uji pelarutan P dari sumber P sukar larut dan ujiantagonistik. Percobaan lapangan meliputi perlakuan dosis pupuk Panorganik yaitu 100%, 75%, 50%, dan kombinasi BPF,FPF, BPF+FPF. MPF diinokulasi menggunakan metode perendaman akar padi. Hasil percobaan laboratorium menunjukkanisolat bakteri BPFA5 (Pseudomonas aeruginosa) dan isolat fungi FPFE1 (Aspergillus niger) memiliki kemampuan pelarutanP lebih tinggi dan kompatibel dalam satu kultur. Hasil percobaan lapangan menunjukkan bahwa perlakuan sistem budidayaSRI lebih unggul dibandingkan PTT berdasarkan pertumbuhan, komponen hasil, hasil gabah, dan serapan hara P gabah.Perlakuan 75% dosis pupuk P anorganik+MPF (bakteri dan fungi) pada sistem budidaya SRI menghasilkan jumlah anakanproduktif, hasil gabah, dan serapan hara P gabah yang lebih tinggi dibandingkan perlakuan lainnya. Aplikasi mikrob pelarutP dapat mengurangi dosis pupuk P anorganik sampai 50% dan meningkatkan hasil gabah dan serapan hara P jerami dangabah.Kata kunci: bakteri pelarut fosfat, fungi pelarut fosfat, pengelolaan tanaman terpadu, system of rice intensification

Peran Bakteri Penambat Nitrogen untuk Mengurangi Dosis Pupuk Nitrogen Anorganik pada Padi Sawah Ida Widiyawati; Sugiyanta ,; Ahmad Junaedi; Rahayu Widyastuti
Indonesian Journal of Agronomy Vol. 42 No. 2 (2014): Jurnal agronomi indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

ABSTRACTThe availability of nitrogen in soil is one of the limiting factors to support growth and rice productivity. Nitrogen-fixing bacteria have ability to utilize air nitrogen so it becomes available in the soil. The use of nitrogen-fixing bacteria could potentially reduce application of nitrogen fertilizer. The aim of the experiment was to determine the role of nitrogen-fixing bacteria in reducing inorganic N fertilizer on lowland rice. The research was conducted in April-August 2012 at the plastic house of Babakan Sawah Baru Experimental Station, IPB. The experiment was arranged in randomized block design with two factors, namely nitrogen fertilizer and type of bacteria. The dosage of N fertilizer (urea), i.e. 0, 50, 75 and 100 kg N ha-1. The types of bacteria, i.e. without bacteria, Azotobacter-like, Azospirillum-like, and consortium. The result of the experiment showed that N fertilization significantly affected to all variables except the percentage of empty grains per panicle, 1,000 grain weight, and N content of plant. The types of bacteria significantly affected to root dry weight, number of filled grain per panicle, greenness of leaf, uptake and content of nitrogen (shoot and grain), grain weight per plot. Consortium of bacteria were capable to reduce 25% the use of inorganic N fertilizer from recommendation doses (100 kg N ha-1) that based on the value of agronomic effectiveness.Keywords: Azospirillum-like, Azotobacter-like, consortium of bacteria

Karakter Morfofisiologi dan Fisikokimia Beras dengan Berbagai Dosis Pemupukan Organik dan Hayati pada Budidaya Padi Organik Isna Tustiyani; Sugiyanta ,; Maya Melati
Indonesian Journal of Agronomy Vol. 42 No. 3 (2014): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

ABSTRACTThe awareness of the negative impacts of conventional agriculture has been encouraging people to switch from conventional farming to the organic farming, using organic and biological fertilizers. This farming system changes will influence the character of the plant and the yield. The objective of the research was to investigate the morphophysiology and physicochemical characters of rice with various rates of organic and biological fertilizer. The experiment was conducted at rice field in Karawang and Bogor, West Java, from May to September 2012. The experiment used a single factor randomized block design consisted of three replications with 12 treatments. The first 6 treatments were 0, 2, 4, 6, 8, 10 ton organic fertilizer ha-1, and the other 6 treatments were 0, 2, 4, 6, 8, 10 ton organic fertilizer ha-1 combined with 2 l biological fertilizer ha-1. As control treatment was application of anorganic fertilizer with the rate of 400 kg NPK (30-6-8) ha-1. Plot size was 15 m x 10 m, with a double row spacing (legowo 2:1) (25 cm x 15 cm x 50). The results showed that organic fertilizer either without or with biological fertilizers increased the weight of 1,000 grains and decreased amylose content of rice. The score of leaf color in plants with inorganic fertilizer was higher than those with organic fertilizer.Keywords: amylose, gelatinization temperature, leaf color, water uptake ratio, 1,000 grain weight

Peran Pupuk Organik dalam Peningkatan Efisiensi Pupuk Anorganik pada Padi Sawah (Oryza sativa L.) Totong Siwanto; Sugiyanta ,; Maya Melati
Indonesian Journal of Agronomy Vol. 43 No. 1 (2015): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

ABSTRACTApplication of organic fertilizer into the soil is designated as a source of macro, micro nutrients and organic acids; it also acts as soil ameliorant that improve physical, chemical and biological properties of soil. Application of high rates organic fertilizer has a constraint namely the availability and ease of application. Therefore, it is necessary to learn the use of organic fertilizer with low rates to improve the efficiency of chemical fertilizers. This research was aimed to study the effect of organic and inorganic fertilizers on growth and yield of paddy rice, as well as the efficiency of N, P, K inorganic fertilizer. Field experiment was conducted at Sawah Baru Research Station, University Farm IPB, Bogor, West Java from September to December 2013. The experiment used Randomized Block Design consisted of two factors: rates of organic fertilizer (0, 250, 500, 750, and 1,000 kg ha-1), and rates of inorganic fertilizer (0, 100, 200, 300, and 400 kg ha-1). The results suggested that the application of 1,000 kg organic fertilizer ha-1 + 400 kg inorganic fertilizer ha-1 did not show significant interaction. Application of organic fertilizer alone up to 1,000 kg ha-1 resulted in low growth and yield. Increasing rates of application up to 400 kg inorganic fertilizer ha-1 increased the growth and yield of paddy rice. The highest N efficiency was 89.19% at a rate of 500 kg organic fertilizer ha-1 + 200 kg inorganic fertilizer ha-1, whereas the highest efficiency of P and K, respectively were 69.55% and 92.52% at a rate of 750 kg organic fertilizer ha-1 + 300 kg inorganic fertilizer ha-1.Keywords: NPK, organic fertilizer, paddy rice

Peran Pupuk Organik dalam Meningkatkan Efektivitas Pupuk NPK pada Bibit Kelapa Sawit di Pembibitan Utama Vira Irma Sari; Sudradjat ,; Sugiyanta ,
Indonesian Journal of Agronomy Vol. 43 No. 2 (2015): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Main nursery is the first step affecting oil palm’s age and productivity. Good plant growth will produce high quality and yield of oil palm. The demand of oil palm seedlings for extensification and replantation increases continuously, and therefore this need to be supported by precise fertilization programs. The objectives of this experiment were to investigate the role of organic fertilizer and to obtain the best organic-NPK fertilizer combination in increasing the effectiveness of the use of NPK fertilizer for the growth of oil palm (Elaeis guineensis Jacq.) seedling in the main nursery. The experiment was conducted from December 2011 to September 2012 at IPB Teaching Farm Dramaga Bogor. The treatment was arranged in a factorial randomized block design with three replications. The first factor was amount of organic fertilizer consisted of 0:6, 1:6, 2:6, and 3:6 of the soil volume (6 kg). The second factor was NPK fertilizer rates, i.e., 0.0, 127.5, 255, and 382.5 g NPK per plant. The results showed that application of organic fertilizer increased the effectiveness of NPK fertilizer and could be a substitute for NPK fertilizer in oil palm seedlings. The best combination treatment was 2:6 (organic fertilizer:top soil) and 382.5 NPK g per plant with effectiveness of 158.9, 209.1 and 170.1 % for plant height, leaf number and stem diameter, respectively. The efficiency of N, P, and K application were 56.2, 11.1, and 29.0% for the same variables, respectively. Based on morphological variables, recommended rate of an NPK compound fertilizer 15-15-15 was in the range of 396.05 g per seedling for eight months. Recommended NPK were 7.00, 12.59, 37.58, 56.41, 36.74, 87.00, 86.60, and 72.97 g per seedling for first to eighth months, respectively.Keywords: chlorophyll, fertilizer recomendation, morphological and physiological response, nutrient balance

Tanggap Tiga Varietas Padi Sawah terhadap Kombinasi Pemupukan dengan Sistem Pembenaman Jerami Tri Herdiyanti; Sugiyanta ,; Hajrial Aswidinnoor
Indonesian Journal of Agronomy Vol. 43 No. 3 (2015): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

ABSTRACTDegradation of soil fertility due to inaccurate application of fertilizer become one of the factors causing the stagnant rice productivity improvement in Indonesia. Straw incorporation, organic fertilizers and biofertilizers applications potentially reduces a rates of inorganic fertilizers and improves soil fertility. The aim of this study was to evaluate growth and yield of 3 lowland rice varieties (high yielding variety, new plant type, and local variety) in response to reduce NPK rates with straw incorporation, organic fertilizer, and biofertilizer in 7th planting season. The research was conducted at rice field in Karawang, West Java, from April-August 2013. The research was arranged in split plot randomized block design with 3 replications. The main plot was fertilizer application consisted of 10 treatments (combination of organic and inorganic fertilizers), while the sub plot was rice varieties (Ciherang, IPB 3S, and Mentik Wangi). The application of inorganic fertilizer, 400 kg NPK 30-6-8 ha-1, was control treatment. Plot size was 6.5 m x 10 m, with a double row spacing (25 cm x 15 cm x 50 cm). The result showed that growth of the three varieties was not significantly different so as the yield at 50% reduced NPK rate with incorporation of straw, organic fertilizer and biofertilizer. Adding of solid and liquid organic fertilizer, and biofertilizers on treatment of straw incorporation + 50% NPK rate was unnecessary due to insignificant yield increase.Keywords: Ciherang, fertilizer, IPB 3S, local variety, Mentik Wangi, new plant type

Co-Authors , Triadiati Adi, Defiyanto Djami AHMAD JUNAEDI Anita Ristianingrum Arie Aryanto Atang Sutandi Atikah Dyah Perwita Bambang Sapta Purwoko Buang Abdullah Chairunnisak Chairunnisak dan Dedeh Siti Mulyani Diny Dinarti Edi Santosa Elfa Najata Erin Puspita Rini Etty Pratiwi Fakhrur Razie Fred Rumawas HAJRIAL ASWIDINNOOR I Made Dharmika Ida Widiyawati Iskandar Lubis Isna Tustiyani Iswandi Anas Iswandi Anas Iswari Saraswati Dewi Kudang Boro Seminar Lukman Gunarto M A Chozin M. A. Chozin Machfud Machfud Maya Melati Miftahur Rizqi Akbar Muhammad dan Heni Purnamawati Haryadi Danang Faqihhudin Muhimatul Husna MUNIF GHULAMAHDI Mutiara Dewi Puspitawati Octafiani Septianti Pradeka Brilyan Purwandoko Pustika Adwiyani Rahayu Safitri Rahman RAHAYU WIDYASTUTI Rizqi Caesar Utama Shoni Riyanti Siti Mufidah Sri Mulatsih Sudarsono Sudradjat Sudradjat Sutrisno Sutrisno Sutrisno Sutrisno Suwarto Titi Candra Sunarti dan Michael (E-Jurnal Agro-Industri Indonesia) Titin Budi Wahyuti Totong Siwanto Tri Herdiyanti Vira Irma Sari Wahju Qamara Mugnisyah Willy Bayuardi Suwarno Yan Sukmawan

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