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PENDEKATAN BIOLOGIS DENGAN RUMPUT DALAM SISTEM INTERCROPS PERTANAMAN PADI GOGO PADA MUSIM KEMARAU R., Ahadiyat Yugi; Harjoso, Tri; Indarto, Budi Supono
Prosiding Vol 3, No 1 (2012)
Publisher : Prosiding

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Abstract

Tujuan dari penelitian ini adalah untuk mengetahui karakter padi gogo toleran kekeringan dengan daya hasil tinggi pada kondisi kadar air tanah rendah pada sistem tanam intercrops dengan rumput. Penelitian dilakukan di lahan tadah hujan Desa Banjaranyar dengan menggunakan Rancangan Petak Terbagi diulang tiga kali. Petak utama terdiri atas tanpa rumput, rumput gajah dan sereh serta anak petak terdiri atas vartietas Situ Patenggang, Kalimutu, Danau Gaung, Jatiluhur dan Cisokan. Pada kondisi kadar air tanah rendah (
Aplikasi Abu Sekam pada Padi Gogo (Oryza sativa L.) terhadap Kandungan Silikat dan Prolin Daun serta Amilosa dan Protein Biji Yugi Rahayu, Ahadiyat; Harjoso, Tri
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 16, No 1 (2011): February 2011
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (174.29 KB) | DOI: 10.24002/biota.v16i1.58

Abstract

Tujuan dari penelitian ini adalah untuk mengetahui pengaruh aplikasi abu sekam terhadap kandungan prolin dan silikat daun serta kualitas hasil yaitu protein dan amilosa biji padi gogo dan hubungan korelasi antar keempat komponen tersebut pada kondisi pertanaman 80 persen kapasitas lapang pada skala pot. Penelitian dilakukan di polibag dalam screen house Fakultas Pertanian Unsoed dengan menggunakan rancangan acak kelompok pola faktorial dengan faktor varietas (Situ patenggang, Limboto, Towuti, Batutegi dan Aek sibundong) dan faktor abu sekam (0, 2, 4, 6 t/ha), diulang tiga kali. Hasil penelitian menunjukan bahwa pemberian abu sekam dosis 2−6 t/ha mampu meningkatkan kandungan silikat daun antara 18,49−29,43% dan menurunkan kandungan amilosa biji pada lima varietas sekitar 4,19−6,92%. Pemberian abu sekam dosis 2−6 t/ha mampu meningkatkan kandungan prolin daun antara 27,56−70,63% dan protein biji antara 2,35−16,71%. Antarvarietas menunjukan bahwa kandungan prolin tertinggi dihasilkan oleh varietas Batu tegi 18,58 persen dan protein biji pada varietas Situ patenggang 9,55%. Terdapat korelasi antar karakter fisiologis yaitu antara silikat-prolin (0,62) dan kandungan protein-amilosa biji (-0,78).
Pengaruh Aplikasi Asap Cair Tempurung Kelapa dan Pupuk NPK Terhadap Hama dan Penyakit pada Padi Gogo Ahadiyat, Yugi R.; Rostaman, Rostaman; Fauzi, Ahmad
Jurnal Penelitian Pertanian Tanaman Pangan Vol 4, No 3 (2020): Desember 2020
Publisher : Pusat Penelitian dan Pengembangan Tanaman Pangan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jpptp.v4n3.2020.p153-160

Abstract

Pest and disease control for the upland rice cultivation needs to be done ecologically with the proper dose of fertilizer. Coconut shell as natural waste can be converted into wood vinegar which is useful for a biopesticide. The application of coconut shell wood vinegar as biopesticide combined with different NPK fertilizer doses needs to be examined in controlling pests and diseases in the upland rice crop. The objective of this study was to know the effect of NPK fertilizer rate and coconut shell wood vinegar application on pests (locusts and leaf folder), and on pathogen infection (Cercospora) on upland rice. The experiment was conducted in Klampok Sub-district, Banjarnegara Regency from April to July 2017. A split plot design was used replicated three times. The main plot was NPK fertilizers viz. 50% and 100% recommendation dosage, and the sub plots were concentration of coconut shell wood vinegar viz. 0% 1%; 1.25%; 1.67%; 2.5% and 5%. The intensity of pest attack, namely locusts and leaf folder, and pathogen infection of Cercospora brown spot disease were observed. Results showed that application of coconut shell wood vinegar suppressed the intensity of locust and leaf folder pests, and lower the intensity of Cercospora pathogen infection. To reduce the intensity of pests and pathogenic infections in upland rice, the application of coconut shell wood vinegar is suggested along with the use of low dose of NPK, for more effective and efficient pest control in environmentally friendly manner.
Efek aplikasi beberapa taraf ekstrak sereh dan pemupukan NPK terhadap pertumbuhan dan hasil padi gogo varietas Unsoed 1 di musim kemarau Yugi R Ahadiyat; Okti Herliana; Ida Widiyawati
Kultivasi Vol 20, No 2 (2021): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v20i2.32603

Abstract

AbstrakUpaya peningkatan hasil padi gogo perlu dilakukan melalui efisiensi pupuk N, P, dan K (NPK). Aplikasi bahan alami nabati dengan aplikasi ekstrak sereh (Cymbopogon citratus) bisa dijadikan alternatif untuk mengefisienkan nutrisi pada tanaman padi gogo. Penelitian ini bertujuan untuk menetapkan konsentrasi ektrak sereh dan dosis pupuk NPK terhadap karakter fisiologi, pertumbuhan, dan hasil padi gogo. Penelitian dilakukan di Dusun Kalicacing, Desa Kalimandi, Kecamatan Purwareja Klampok, Kabupaten Banjarnegara pada bulan April sampai September 2017 dan menggunakan rancangan petak terbagi dengan tiga ulangan. Petak utama merupakan dosis pupuk N, P, K rekomendasi (100 kg N/ha, 100 kg P2O5/ha, dan 50 kg K2O/ha), dengan taraf 50% dan 100% dosis rekomendasi. Anak petak merupakan konsentrasi ekstrak sereh dengan taraf 0%; 1%; 1,25%; 1,67%; 2,5%; dan 5%. Variabel yang diamati meliputi tinggi tanaman, jumlah daun, luas daun, jumlah anakan, bobot kering tanaman, serapan N dan P, kandungan prolin, kadar klorofil a dan b, jumlah anakan produktif, bobot dan jumlah gabah per rumpun, bobot 1000 biji, persentase gabah isi, dan bobot gabah per petak efektif dan per hektar. Hasil penelitian menunjukkan bahwa ekstrak sereh belum mampu meningkatkan karakter pertumbuhan, fisiologi, dan hasil padi gogo yang optimum. Dosis pupuk NPK 50% mampu menghasilkan bobot gabah setara dengan pupuk NPK 100% rekomendasi yaitu 3,46 – 3,47 t/ha. Meskipun aplikasi ekstrak sereh tidak memberikan perbedaan nyata dengan tanpa pemberian ekstrak sereh, aplikasi ekstrak sereh tidak memberikan penurunan pada pertumbuhan dan hasil padi gogo sehingga aman digunakan sampai batas konsentrasi 5%.Kata Kunci: ekstrak sereh, fisiologi tanaman, hasil tanaman, padi gogo, pertumbuhan tanaman, pupuk NPK AbstractEfforts to increase upland rice yield need to be done through the efficiency of synthetic N, P, and K (NPK) fertilizers. The application of natural resources such the application of lemongrass extract (Cymbopogon citratus) can be used as a complement so that nutrients are more efficient for upland rice. Objective of this study was to determine the application of lemon grass extract concentrations dan N, P, K fertilizer dosages on characters of physiology, growth, and yield, of upland rice. Split Plot Design with main plot of NPK fertilizers recommendation dosage (100 kg N/ha, 100 kg P2O5/ha, 50 kg K2O/ha) which levels were 50% and 100 %. Subplot was lemongrass extract concentration viz. 0%; 1%; 1.25%; 1.67%; 2.5%; and 5% were tested with three replications at Kalicacing sub-village, village of Kalimandi, Purwareja Sub-district, District of Banjarnegara from April to September 2017. The observed variables were plant height, leaf number, leaf area, tillers number, dry weight of plants, N dan P uptake, proline content, chlorophyll a dan b, productive tillers number, weight dan number of grains, weight of 1000 seeds, percentage of filled grain, and weight of grain/effective plot and per hectare. The results showed that lemon grass extract could not improve the upland performance yet.  However, NPK dosage of 50% dan 100% had an equal grain yield about 3.46 – 3.47 t/ha. Although the application of lemongrass extract did not give a significant difference with 0% lemongrass extract, it did not decrease the growth and yield of upland rice so it was safe to use, up to concentration of 5%.Keywords: lemon grass extract, NPK fertilizers, plant growth, plant physiology, upland rice, yield.
Pengaturan suhu inkubasi dan perlakuan benih dalam upaya meningkatkan daya tumbuh benih carica Yugi Rahayu Ahadiyat; Pramesti Budi Arini
Kultivasi Vol 20, No 3 (2021): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v20i3.32626

Abstract

AbstrakBuah carica merupakan jenis buah khas tropis namun memiliki kendala dalam produksi benihnya. Benih carica memiliki daya kecambah rendah disebabkan oleh adanya lapisan sarcotesta yang menjadi penghambat dalam proses perkecambahan. Penelitian ini bertujuan untuk mengetahui pengaruh penghilangan lapisan sarcotesta terhadap viabilitas benih carica dan menentukan suhu optimum untuk mematahkan dormansi benih dan mempertahankan viabilitas benih carica. Penelitian ini dilaksanakan menggunakan Rancangan Acak Kelompok yang terdiri daridua faktor, yaitu faktor penghilangan lapisan sarcotesta terdiri atas benih tanpa sarcotesta dan ber-sarcotesta, sertafaktor inkubasi suhu, yang terdiri atas inkubasi 15 ºC, 25 ºC, 35 ºC, dan 45 0C. Variabel yang diamati antara lain kadar air (%),daya hantar listrik (mS/m), laju respirasi benih (mol/g/jam), jumlah benih rusak (%), kandungan fenol, dan uji lapanganmeliputi daya kecambah (%), kecepatan pematahan dormansi (hari), potensi tumbuh maksimum (%),dan indeks vigor benih. Hasilpenelitian menunjukkan bahwa penghilangan lapisansarcotestamampu meningkatkan daya tumbuh benih carica. Suhu inkubasi 15 oC memberikan viabilitas terbaik, namun belum ditemukan suhu optimum yang mampu mematahkan dormansi benih dan mempertahankan viabilitas benih.Kata kunci: Benih carica ∙ Dormansi benih ∙ Sarcotesta ∙ Vigor dan viabilitas benih Abstract Carica fruit is a typical tropical fruit with seed production problem. Carica seeds have low germination rate due to the presence of a sarcotesta layer which is an inhibitor in the germination process. The objective of this study was to determine the effect of removing the sarcotesta on the viability of carica seeds and to determine the optimum temperature to break seed dormancy and maintain viability of carica seeds. This experiment was conducted using a completely randomized block design consisting of two factors, i.e., removal treatment and temperature. The first factor was composed of removed sarcotesta seed and normal seed with sarcotesta. Temperature treatment was composed of 4 levels, i.e., 15ºC, 25ºC, 35ºC, and 450C. The observed variables were moisture content (%), electrical conductivity (mS/m), seed respiration rate (mol/g/hour) number of damaged seeds (%), phenolic content, and field tests included germination rate (%), dormancy breaking speed (days), maximum growth potential (%), and seed vigor index. The results showed that removing the sarcotesta layer was able to improve growth capacity of carica seeds. Temperature treatment at 15 oC was determined as the optimum temperature that could break seed dormancy and also maintain seed viability.Keywords: Carica seed ∙ Seed dormancy ∙ Sarcotesta ∙ Seed vigor and viability  
Karakter Morfo-fisiologi dan Hasil Padi Gogo Toleran Kekeringan Yugi Rahayu Ahadiyat; Sapto Nugroho Hadi; Okti Herliana
Jurnal Ilmu Pertanian Indonesia Vol. 25 No. 3 (2020): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.25.3.462

Abstract

The objective of this study was to obtain varieties with high yield along with proper morpho-physiological characters under drought condition. Eleven varieties of upland rice i.e., Gilirang, Situ Patenggang, Kalimutu, Aek Sibundong, Batutegi, Towuti, Sunggal, Danau Gaung, Way Apo Buru, Danau Tempe, and Situ Bagendit were characterized based on morphology, physiology, and yield. Non factorial Complete Randomized Block Design was used with three times repetition. Parameters measured were morphological characters, physiological characters, and yield components. Morphological characters measured were plant height, number and area of leaf, shoot dry biomass, tiller number, and total root length. Physiological characters measured were plant growth rate, net assimilation rate, and relative growth rate. Yield components measured were number and length of panicle, number of seeds per panicle, 1000 seeds weight, weights of seed per panicle, weights of seed per plot, and weights of seed per hectare. The results showed that Danau Tempe variety had better characters against drought stress compared to the other varieties with higher yields supported by high plant growth rate, relative growth rate, chlorophyll content and leaf area with low accumulation of proline content and short root length. Keywords: drought, morphological character, upland rice variety, yield
Hasil Padi dan Kelimpahan Gulma dengan Aplikasi Jenis Pupuk Berbeda di Lahan Kering Tadah Hujan pada Musim Kemarau Yugi Rahayu Ahadiyat; Sisno Sisno
Jurnal Ilmu Pertanian Indonesia Vol. 26 No. 2 (2021): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.26.2.259

Abstract

Rice yield and proper weed control need to be increased through an environmentally friendly agricultural system approach in rainfed land during the dry season by reducing the dosage of synthetic fertilizers. This study aims to determine the effect of different fertilizer applications on rice yield and weed abundance in rainfed land during the dry season. The study used a split-plot design, with the main plot of rice variety, i.e., Situ Bagendit and IR-64, and subplots of fertilizer, namely synthetic fertilizers (N, P, K), organic fertilizers + P60 + ½ dose of synthetic fertilizers, organic fertilizers + PGPR + ½ dose of synthetic fertilizer and organic fertilizer + P60 + PGPR + ½ dose of synthetic fertilizer with three replications. The variables observed were rice yield components, namely panicle length, total empty grain and content per panicle, grain weights per hill, effective plot and hectare, 1000 grain weight, harvest index, and weeds summed dominance ratio (SDR). The synthetic fertilizers and three various organic fertilizers, biological fertilizers, and synthetic fertilizers gave different results on the SDR of weeds. The weeds of Sphenoclea zeynalica and Cyperus difformis showed consistent dominance with higher SDR than other weeds, i.e.,> 15 and > 10, respectively. The application of organic and biological fertilizers with half the recommended dosage of the synthetic fertilizers is equivalent to applying the recommended dosage of synthetic fertilizers on rice yield during the dry season on the rainfed dryland with low rainfall intensity and a low yield of 1.3–1.7 t/ha. Keywords: biological fertilizer, inorganic fertilizer, organic fertilizers, rice, weeds
Pengaruh Refugia Bunga Telekan (Tagetes erecta) dan Bunga Kertas (Zinnia elegans) pada Populasi Artropoda dan Hasil Tanaman Padi Nur Azizah; Yugi Rahayu Ahadiyat; Noor Farid; Okti Herliana
Jurnal Ilmu Pertanian Indonesia Vol. 27 No. 1 (2022): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.27.1.54

Abstract

This study aimed to determine the effect of refugia (Tagetes erecta and Zinnia elegans) plants on the relative abundance and diversity of Arthropod's dominance in the rice plant area and on rice yield. The Arthropods were observed by the visual control method at each rice growth stage. Observations were made during 15 minutes in five plots of rice area and one refugium block at three different times (08.00‒10.00, 12.00‒14.00, and 15.00‒17.00. The morphological features were identified and recorded to identify the species level and grouped according to their ecological niches. The relative abundance and Shannon Diversity Index were calculated. The rice plants' growth data and yield components were analyzed by ANOVA followed by DMRT if there were any significant differences among the treatments. Relative abundance of dominant arthropods on rice land planted with Zinnia elegans was Solenopsis geminata (11.07%), Leptocorisa oratorius (38.37%), and Hypolimnas bolina (0.17%) with species diversity index values of 3.25%; 2.94%, and 2.56%, respectively. In contrast, the relative abundance of arthropods in rice land planted with Tagetes erecta were Cardiochiles philippinensis (8.84%), Oxya chinensis (25.45%), and Scirpophaga incertulas (0.34%) with moderate diversity index values. The Tagetes erecta gave an equivalent result of rice yield with the control, namely 8,10 t/ha and 7,60 t/ha, respectively, while the Zinnia elegans offers rice yield of 6,30 t/ha. Keywords: arthropod diversity, paddy yield, Tagetes erecta L, Zinnia elegans
Phytoremediation of cadmium-contaminated soil using terrestrial kale (Ipomoea reptans Poir) and corncob biochar Ika Fitriana Dyah Ratnasari; Sapto Nugroho Hadi; Slamet Rohadi Suparto; Okti Herliana; Yugi R Ahadiyat
Journal of Degraded and Mining Lands Management Vol 7, No 4 (2020)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2020.074.2313

Abstract

This study aimed to examine the potential of terrestrial kale (Ipomoea reptans Poir) combined with corncob biochar for phytoremediation of cadmium-contaminated soil. The experiment design was a completely randomized block design with two factors. The first factor was the population density of Ipomoea reptans (0, 2, and 4 plants/polybag). The second factor was the dose of corncob biochar (0, 5, and 10 t corncob biochar/ha). The variables observed were plant height, leaf number, leaf area, chlorophyll content, wet shoot weight, dry shoot weight, wet root weight, dry root weight, effectiveness of plant in Cd absorption and removal efficiency of Cd. The results showed that Ipomoea reptans could adsorb 73.59% of Cd without application of corncob biochar. Ipomoea reptans planted with a population density of 4 plants/polybag reduced Cd content in the soil by 57.70% Application of 10 t corncob biochar/ha reduced Cd content in the soil by 43.42%. There was an interaction between Ipomoea reptans panted with a population density of 4 plants/polybag with the application of 10 t corncob biochar that reduced Cd content in the soil by 62.42%.
Application of wood vinegar coconut shell and NPK fertilizer to maintain sustainable agriculture of upland rice production Yugi R Ahadiyat; Sapto Nugroho Hadi; Okti Herliana
Journal of Degraded and Mining Lands Management Vol 5, No 3 (2018)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (82.584 KB) | DOI: 10.15243/jdmlm.2018.053.1245

Abstract

Objective of this study was to know the effect of NPK fertilizer and wood vinegar coconut shell on upland rice yield and, pest and disease intensity. Inpago Unsoed 1 was a main object in this study. Application of different dose of NPK as main plot viz. 50% and 100% recommended dose and concentration of wood vinegar coconut shell of ratio i.e. 1: 20, 1: 40, 1: 60, 1: 80 and 1: 100 were tested. Observation variables were number of panicle per hill, number of seed per hill, percentage of filled seed, seed weight per hill, weight of 1000 seeds and weight of seed per effective plot. Application of wood vinegar coconut shell with concentration of 1:20 improved grain yield of upland rice and reduced 50% NPK application, and suppress intensity of pest and disease.