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Agrin : Jurnal Penelitian Pertanian
Published by Universitas Jenderal Soedirman
ISSN : 14100029     EISSN : 25496786     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Agrin provides facilities for publishing articles or quality papers in the form of research results in various aspects of agriculture and agricultural commodities widely including ; agronomy, agroecology, plant breeding, horticulture, soil science, plant protection, agribusiness, agroforestry, food science and technology , agricultural techniques, agricultural innovations, agricultural models and agricultural biotechnology. This journal is published twice a year, ie the April and October. The Agrin Journal invites researchers, academics and intellectuals to contribute critical writing and contribute to the development of agricultural science.
Arjuna Subject : -
Articles 303 Documents
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PENGENDALIAN HAMA PENGGEREK POLONG PADA PERTANAMAN KACANG HIJAU S. W. Indiati
Agrin Vol 11, No 2 (2007): Agrin
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.agrin.2007.11.2.73

Abstract

Penggerek polong Maruca testulalis (Lepidoptera: Pyralidae) merupakan hama utama kacang hijau didaerah Banjarnegara. Pada MK 2006 di lahan tegal dan sawah dilakukan penelitian yang bertujuan untukmengkaji penggunaan insektisida sintetik, ekstrak biji mimba dan Bt komersial untuk menekan tingkatserangan hama polong M. testulalis pada tanaman kacang hijau. Di lahan tegal, penelitian dilaksanakan diDesa Parakan, Kecamatan Purwanegara, sedang di lahan sawah dilakukan di Desa Joho, Kecamatan Bawang,Banjarnegara. Penelitian disusun menggunakan rancangan acak kelompok 7 perlakuan dan masing-masingdiulang empat kali. Kacang hijau varietas Sriti ditanam pada petak seluas 5 m x 8 m dengan jarak tanam 40cm x 15 cm. Hasil penelitian menunjukkan bahwa insektisida lamda sihalotrin – 2 ml/l yang diaplikasikanseminggu sekali berawal pada saat pembungaan paling efektif menekan serangan hama penggerek polong,dan mencegah kehilangan hasil biji kacang hijau hingga 59%. Penggunaan Bt komersial (Turicide) 2 mg/l,dan Azadiractin (ekstrak dari biji mimba) 4 ml/l dapat dianjurkan walaupun efektifitasnya sedikit lebihrendah, namun tidak berbeda nyata dengan lamda sihalotrin tapi berbeda nyata dengan kontrol.Kata kunci : Pengendalian, Maruca testulalis, kacang hijau. ABSTRACTThe pod borer, Maruca testulalis (Lepidoptera: Pyralidae) was the main pest that always attackedmungbean plant in Banjarnegara. In the 2006 dry season, field trials were conducted to study the use ofsynthetic insecticide, the seed neem extract, and commercial Bt to suppress the level of the M. testulalisintensity on mungbean. The research was carried out in two locations, respectively in Parakan Village,Purwanegara Sub district for up land, and in Joho Village, Bawang Sub district for wet land. The researchwas designed in randomize block, seven treatments and four replications. Mungbean Sriti variety was plantedin 5 m x 8 m plot size, with plant spacing 40 cm x 15 cm. The damage of pod borer was sample randomlyfrom five plants. The result indicated that the use of synthetic insecticide lamda sihalotren – 2 cc/l weeklystarted at flowering stage was the most effective suppressed pod borer damage, and reduced yield loss up to59%. The use of commercial Bt (Turicide HP), and Azadiractin (neem seed extract solution) could berecomended because of safety in the enviroment although their effectiveness lower than lamda sihalotrenKeyword: Control technique, Maruca testulalis, mungbean.
PENGENDALIAN HAMA BUBUK KEDELAI (Callosobruchus analis F.) DENGAN BIJI SIRSAK (Annona muricata) Harinta, Yos Wahyu; R., Nugraheni; Setyorini, Agung
Agrin Vol 20, No 1 (2016): Agrin
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.agrin.2016.20.1.316

Abstract

The aim of this research is to know the influence of the flour soursop seed of the controlling pestCallosobruchus analis at the soursop seed. This research has been implemented experimentally, consists of twophases. The first is to know the effectivity of the flour soursop seed against mortallity of the beetle C. analis. andthe laying of eggs, while the second phases is to know the influence of the flour soursop seed against the influenceof the beetle population C. analis. This research has used RAL/CRD/ Completely Randomized Design with onetreatment factor that is : the dosege of the flour soursop seed,consiste of A) the flour soursop seed, dosege 1,50g/100g ; B) the flour soursop seed, dosage 1,00 g/100 g ; C) the flour soursop seed, dosage 0,50 g/ 100 g; O)Control/without treatment. Every tretment is repeated five time. The observation of the parameter is : mortalityand development of the beetle C. analis, the percentageof the seed damage and the decrease of the seed heavy.The result of this research indicated that; the flour soursop seed influenced for the mortality and devolepment C.analis at the soy bean seed; the flour soursop seed can reduce for damage and the decrease of the seed heavyagainst attacking C. analis. The effective dosage of the flour soursop seed for controlling the beetls C. analis, isnot founded yet. From the result of this research, can be concluded that the flour soursop seed by dosage 1,50 g/100 g seed can influence for increasing mortality and decreasing the expansion of the beetle powder C. analis atthe say been seed and can reducing the damage and the decreasing the soy bean seed heavy because of theattacking the powder of beetle C. analis at storaging, the effective dosage of the flour soursop seed for controllingthe beetle C. analis is not founded yet.Keywords: the flour soursop seed (Annona muricata), the powder of beatle Callosobruchus analis F. ABSTRAKPenelitian bertujuan untuk mengetahui pengaruh tepung biji sirsak terhadap pengendalian hamaCallosobruchus analis pada biji kedelai. Penelitian ini dilaksanakan secara eksperimen, yang terdiri dari dua tahap,tahap pertama adalah mengetahui efektifitas tepung biji sirsak terhadap mortalitas kumbang C. analis danpeletakan telur sedangkan tahap kedua mengetahui pengaruh tepung biji sirsak terhadap perkembangan populasikumbang C. analis. Penelitian menggunakan Rancangan Acak Lengkap (RAL/CRD) dengan 1 faktor perlakuanyairu dosis tepung biji sirsak. Adapun dosis perlakuan adalah dosis tepung biji sirsak yang terdiri dari (A) Tepungbiji sirsak , dosis 1,50 g / 100 g; (B) Tepung biji sirsak, dosis 1,00 g / 100 g; (C) Tepung biji sirsak , dosis 0,50 g/ 100 g; (O) Kontrol / Tanpa Perlakuan. Tiap Perlakuan diulang lima kali. Parameter pengamatan adalah ;mortalitas dan perkembangan kumbang C. analis, persentase kerusakan biji dan penyusutan bobot biji. Hasilpenelitian menunjukkan bahwa tepung biji sirsak berpengaruh terhadap mortalitas dan perkembangan C. analispada biji kedelai ; tepung biji sirsak dapat mengurangi terhadap kerusakan dan penyusutan bobot biji kedelaiterhadap serangan C. analis; belum didapat dosis tepung biji sirsak yang efektif untuk mengendalikan kumbangC.analis. Dari hasil penelitian, dapat disimpulkan bahwa tepung biji sirsak dengan dosis 1,50 g / 100 g biji dapatberpengaruh terhadap peningkatan mortalitas dan penurunan perkembangan kumbang bubuk Callosobruchusanalis F. pada biji kedelai serta dapat mengurangi kerusakan dan penyusutan bobot biji kedelai akibat serangankumbang bubuk Callosobruchus analis F. di penyimpanan, namun belum didapat dosis tepung biji sirsak yangefektif untuk mengendalikan kumbang C. analis F.Kata kunci: Tepung biji sirsak (Annona muricata), Kumbang bubuk Callosobruchus analis F.
PENGGUNAAN SITOKININ UNTUK MENGATASI CEKAMAN KEKERINGAN SELAMA FASE REPRODUKTIF TANAMAN KEDELAI Widiatmoko, Teguh; Agustono, Tridjoko; Faozi, Khavid
Agrin Vol 14, No 1 (2010): Agrin
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.agrin.2010.14.1.103

Abstract

Penelitian dilakukan untuk mengkaji efektifitas penggunaan sitokinin (kinetin) untuk menunda senesendaun tanaman kedelai yang mengalami kekeringan selama fase reproduktif dan pengaruhnya terhadap hasiltanaman. Percobaan dilakukan di rumah plastik Fakultas Pertanian, Universitas Jenderal Soedirman, Purwokertomulai bulan Januari 2006 sampai April 2006. Rancangan perlakuan adalah faktorial (3x4) yang disusun dalamRancangan Acak Lengkap (RAL) dengan tiga ulangan. Faktor pertama berupa kadar air tanah yangmenggambarkan cekaman kekeringan selama fase reproduktif, yaitu kadar air tanah 100% kapasitas lapangan(KL-100%), kadar air tanah 75% kapasitas lapangan (KL-75%), dan kadar air tanah 50% kapasitas lapangan(KL-50%). Faktor kedua berupa tingkat konsentrasi zat pengatur tumbuh sitokinin (kinetin), yaitu konsentrasi0, 20, 40 dan 60 ppm. Pengamatan yang dilakukan meliputi kandungan air nisbi daun, kandungan klorofil daun,kehijauan daun, kandungan protein daun, laju transpirasi tanaman, jumlah polong, persentase polong isi, jumlahbiji, bobot biji per tanaman dan bobot 100 biji. Hasil penelitian menunjukkan cekaman kekeringan selama fasereproduktif tanaman kedelai secara umum menurunkan karakter fisiologi dan hasil tanaman kedelai. Kinetinefektif menunda senesen daun ditinjau dari kandungan klorofil dan protein daun. Penundaan senesen daun padatanaman kedelai yang mengalami kekeringan selama fase reproduktif ternyata justru berdampak negatif terhadappertumbuhan organ reproduktif.Kata kunci: kinetin, kekeringan, senesen, kedelai ABSTRACTThe research was designed to study cytokinin application to overcome the drought during reproductivestages of soybean. It was done in the plastic house Faculty of Agriculture, Jenderal Soedirman University,located in Purwokerto, Central Java from January 2006 up to April 2006. The experiment was a (3x4) factorialarranged in Completely Randomized Design (CRD) with three replications. The first factor was soil watercontent showing the level of drought, i.e. soil water content 100% field capacity, soil water content 75% fieldcapacity, and soil water content 50% field capacity. The second factor was the concentration of cytokinin(kinetin) i.e. 0, 20, 40 and 60 ppm. The observations were done on relative water content of the leaves,chlorophyll and protein content of the leaves, the level of leaves greenness, transpiration rate, number of podsand seeds, weight of seeds per plant and weight of 100 seeds. The result showed that the drought duringreproductive stages reduced on all physiological character and seed yield of soybean. Kinetin was effective todelay leaf senescence that observe on chlorophyll and protein content of leaves. Delaying leaf senescence duringthe drought at reproductive stages of soybean exactly influenced negatively on the growth of reproductiveorgans.Key words: kinetin, drought, senescence, soybean
KAJIAN DOSIS PUPUK ORGANIK CAIR LEACHATE PLUS DAN KETEBALAN MULSA UNTUK PERTUMBUHAN DAN HASIL WORTEL DI DATARAN RENDAH Mardin, Sobardini; Dewanto, Eko
Agrin Vol 17, No 2 (2013): Agrin
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.agrin.2013.17.2.206

Abstract

Penelitian ini bertujuan untuk mengetahui dosis optimal pupuk organik cair leachate plus, ketebalanmulsa jerami padi terbaik dan interaksinya terhadap pertumbuhan dan hasil wortel di dataran rendah. Penelitianberupa percobaan lapangan yang telah dilaksanakan pada bulan April 2013 – Nopember 2013 di desaGrendeng, Kecamatan Purwokerto Utara, Kabupaten Banyumas ketinggian tempat ± 110 m dpl. Wortel yangditeliti merupakan varietas New kuroda dan faktor yang dicoba meliputi dosis POC leachate plus yang terdiriatas D0=0cc/tanaman, D1=50cc/tanaman, D2 =75cc/tanaman dan D3=100cc/tanaman, dan ketebalan mulsajerami padi yang meliputi M1=ketebalan satu lapis, M2=ketebalan dua lapis, dan M3=ketebalan tigalapis.Rancangan yang digunakan adalah RAKL dengan tiga ulangan. Hasil penelitian menunjukkan bahwa pemberiandosis POC leachate plus dan ketebalan mulsa jerami berbeda sangat nyata terhadap tinggi tanaman, bobotbrangkasan, volume umbi, diameter umbi, bobot umbi per tanaman, dan bobot umbi per petak efektif .Pemberian dosis POC lechate plus terbaik adalah 50 cc/tanaman dengan bobot umbi maksimal 131,11 g perpetak efektif dan setara dengan 19,224 ton/ha sedangkan pemberian mulsa dengan ketebalan dua lapismemberikan bobot umbi maksimal 135,83 g/petak efektif atau setara dengan 19,916 ton/ha. Terdapat interaksiyang sangat nyata terhadap tinggi tanaman, volume umbi, diameter umbi, berat umbi per tanaman, dan bobotumbi per petak efektif. Kombinasi terbaik pada pemberian dosis POC 50 cc per tanaman dan ketebalan mulsadua lapis dengan berat umbi 153,33 g/petak efektif atau setara dengan 22,482 ton/ha.Kata kunci: POC Leachate Plus, mulsa, wortel, dataran rendahABSTRACTObjectives of this study were to understand the optimal dose of leachate plus liquid organic fertilizer andthe best straw mulch thickness to increase carrot growth and crop in lowland, as well as their interaction. It wasconducted in wetland at Grendeng Village North Purwokerto Subdistrict Banyumas regency, with the elevationabout 110 m above sea level, starting from April to November 2013. The research used randomized completelyblock design (RCBD) with three replications. The first examined factor was doses of leachate plus liquidorganic fertilizer containing four levels namely D0 = 0 cc/plant, D1: 50 cc/plant or 500 cc/plant, D2: 75 cc/plantor 750 cc/plant, and D3: 100 cc/plant or 1000 cc/plant. The second factor was straw mulch thickness consistingof one layered thickness (M1), two layered thickness (M2), and three layered thickness (M3). The results showedthat doses of leachate plus liquid organic fertilizer were significantly different on plant height, fresh canopyweight, tuber volume, tuber diameter, tuber weight, and tuber weight per effective plant. The best dose wasachieved in leachate plus liquid organic fertilizer of 50 cc/plant tuber weight at 131.11 g per effective plot orequivalent with 19.224 tones/ha and mulch treatment gave the best result with two layered straw mulch for tuberweight per effective plot or equivalent with 19.916 tones/ha. Highly significant interaction was showed in plantheight, tuber volume, tuber diameter, and for tuber/root weigh per effective plot on the combination of 50cc/plant of leachate plus liquid organic fertilizer and two layered straw mulch for tuber weight 153.33g or similarto 22.482 tones/ha.Key words: leachate plus liquid organic fertilizer, mulch, carrot, low land
HUBUNGAN FAKTOR LINGKUNGAN TANAH TERHADAP INTENSITAS BUSUK PANGKAL BAWANG PUTIH DI TAWANGMANGU Hadiwiyono Hadiwiyono; Salim Widono
Agrin Vol 12, No 1 (2008): Agrin
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.agrin.2008.12.1.75

Abstract

Busuk pangkal bawang putih yang disebabkan Fusarium oxysporum Schlecht. f.sp. cepae (Hanz.) Snyd.et. Hans. adalah penyakit paling penting di Tawangmangu sejak musim tanam 2000. Penyakit ini telahmerugikan hasil bawang putih secara ekonomi. Penelitian ini bertujuan untuk menganalisis hubungan antarakondisi lingkungan tanah terhadap intensitas busuk pangkal bawang putih di Tawangmangu. Penelitiandilakukan melalui survei pertanaman bawang putih di daerah endemik busuk pangkal di Tawangmangu,Karanganyar, Jawa Tengah. Sebanyak 30 pertanaman bawang putih yang ditentukan dengan metode purposivesampling digunakan pada penelitian ini. Sampel tanah rhizosfer untuk keperluan analisis biologi dan kimia tanahditentukan dengan metode transect system. Data yang diperoleh dianalsis regresi linier berganda dengan programSPSS. Hasil penelitian menunjukkan bahwa intensitas busuk pangkal bawang putih di Tawangmanguberhubungan dengan perubahan kondisi lingkungan tanah. Intensitas busuk pangkal bawang putih cenderungtinggi pada lahan dengan kapasitas pertukaran kation, bahan organik, dan Nitrogen yang tinggi, tetapi Fosfor danKalium yang rendah.Kata Kunci: Fusarium oxysporum, busuk pangkal, bawang putih, ekologi. ABSTRACTBasal rot of gar;ic caused by Fusarium oxysporum Schleht. F.sp. cepae (Hanz.) Snyd et. Hans. Is the mostimportant disease in tawangmangu since planting season 2000. The disease has lased garlic productioneconomically. The aim of research was to analysze the relationship beetwen soil environmental condition towardintensity basal rot of garlic in Tawangmangu. Dat was collected by survey on garlic plant of epidemic area ofbasal rot in Tawangmangu, Karangayar, Central Java. There were 30 samples of garlic determined by purposivesampling method. Rhizosper soil sample for biological and soil chemical analysis gained by transect systemmethod. Data obtained where analyzed by multiple linear regression using SPSS softwere. The result showedthat intensity of garlic basal rot in Tawangmangu has significant relationship with the change of soilenvironmenr condition. Intensity of garlic basal rot terd to increase in lard which have high cation exchangecapacity, organic material and nitrogen, but low phosphorus and kalium.Keywords: Fusarium oxysporum, basal rot, garlic, ecology.
FORMULASI FOOD GRADE GREASE BERBAHAN DASAR MINYAK SAWIT (RBDPO) DENGAN VARIASI PENAMBAHAN MINYAK JARAK, BAHAN PENGENTAL, DAN KONSENTRASI Zn STEARAT Yanto, Tri
Agrin Vol 19, No 2 (2015): Agrin
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.agrin.2015.19.2.246

Abstract

Penelitian ini dilakukan untuk mengetahui pengaruh penambahan minyak jarak dalam pembuatan foodgrade grease berbasis minyak sawit RBDPO (Refined Bleached Deodorized Palm Oil), mengetahui pengaruhvariasi penambahan jenis bahan pengental terhadap karakteristik food grade grease yang dihasilkan, mengetahuikonsentrasi Zn stearat yang optimal dan menentukan formulasi terbaik dari food grade grease yang dihasilkan.Rancangan yang digunakan adalah Rancangan Acak Lengkap (RAL) faktorial dengan dua ulangan. Faktor yangdicoba meliputi jenis minyak yang terdiri dari minyak sawit RBDPO (M1) dan kombinasi minyak sawit RBDPOdengan minyak jarak (M2); variasi bahan pengental yang terdiri dari Ca(OH)2 (P1), kombinasi Ca(OH)2+LiOH(P2), kombinasi Ca(OH)2+NaOH (P3), dan kombinasi Ca(OH)2+Al(OH)3 (P4); dan konsentrasi Zn stearat yangterdiri dari 0% (A1), 2.5% (A2), dan 5% (A3). Variabel yang diamati meliputi variabel fisikokimia yaitu dayatahan korosi, penetrasi, dropping point, dan pH. Penambahan minyak jarak diketahui dapat meningkatkan dayatahan korosi dari food grade grease yang dihasilkan. Variasi jenis bahan pengental berpengaruh nyata terhadapsemua variabel. Secara umum, penambahan NaOH memberikan nilai tekstur paling keras yaitu 3.82 mm/s (NLGI4) dan Al(OH)3 paling lembek dengan nilai sebesar 5.16 mm/s (NLGI 3). Penggunaan Ca(OH)2 murni memberikandaya tahan korosi tertinggi (2a) dan terendah pada penambahan LiOH (2c-2b). Nilai titik leleh tertinggi terdapatpada penambahan Al(OH) (106,83°C), sedangkan terendah pada penambahan NaOH (88,58°C). Konsentrasi Znstearat yang memberikan daya tahan korosi paling optimal adalah 5%. Formula terbaik dihasilkan pada kombinasiperlakuan jenis minyak kombinasi minyak sawit RBDPO dengan minyak jarak, kombinasi bahan pengentalCa(OH)+Al(OH) dan konsentrasi Zn stearat sebesar 5%, dengan nilai rerata daya tahan korosi golongan 2b (kilausedang warna lembayung muda), penetrasi kategori NLGI 2, dropping point 95.25°C dan pH 7.Kata kunci: food grade grease, minyak sawit RBDPO, minyak jarak, Ca(OH)2 dan Zn stearat.ABSTRACTThis research is carried out to study effect of castor oil addition, to study of thickening agent addition, todetermine the optimum concentration of Zn stearat and to determine the best formulation of food grade grease.This research used Completely Randomized Design (CRD) which is arranged in factorial with two replications.Factor tried were base oil types covered by refined bleached deodorized palm oil (RBDPO) (M1) and combinationof RBDPO+castor oil (M2); thickening agent covered by Ca(OH)2 (P1), combination of Ca(OH)2+LiOH (P2),Ca(OH)2+ NaOH (P3), Ca(OH)2+Al(OH)3 (P4); and concentration of Zn stearat covered by 0 percent, 2.5 percentand 5 percent. Variable observed were physicochemical variables covered corrosion-resistance, penetration,dropping point and pH. The addition of castor oil can improve the corrosion resistance of the resulting food gradegrease. Variations in the type thickeners significantly affected all variables. In general, the addition of NaOHgives the value of hard texture that is 3.82 mm/s (NLGI 4) and Al(OH) with the value of the most flaccid of 5.16mm/s (NLGI 3). The use of Ca(OH) pure gives the highest corrosion resistance (2a) and the lowest in the additionof LiOH (2c - 2b) . Highest melting point value contained in the addition of Al(OH)(106.83°C), while the lowestin the addition of NaOH (88.58°C). Concentration of Zn stearate which provides optimal corrosion resistance is5 percent. Best formula produced in the combined treatment of type oil palm oil RBDPO combination with castoroil, thickener combination of Ca (OH)+Al(OH) and Zn stearate concentration of 5 percent, with the average valueof the corrosion resistance class 2b (scintillation medium lavender), penetration category NLGI 2, the droppingpoint of 95.25°C and pH 7.Keywords: food grade grease, palm oil (RBDPO), castor oil and Zn stearat.
APLIKASI OLAH TANAH KONSERVASI DAN PUPUK N PADA ENTISOL SERTA PENGARUHNYA TERHADAP SERAPAN NPK TANAMAN JAGUNG Wardoyo, S. Setyo
Agrin Vol 12, No 2 (2008): Agrin
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.agrin.2008.12.2.94

Abstract

Sistem olah tanah konservasi (OTK) penting untuk diteliti keberadaannya, karena dapat memberikankontribusi terhadap sistem pertanian berkelanjutan di Indonesia. Penelitian ini bertujuan untuk mengetahuiserapan NPK dan produksi varietas jagung DK 8652 pada sistem olah tanah konservasi di tanah Entisol Klaten.Penelitian dilaksanakan pada tanah Entisol yang telah disawahkan pada musim kemarau setelah panen padi diKecamatan Ketandan Kabupaten Klaten. Penelitian disusun dalam rancangan acak kelompok (RAK) pola SplitPlot 3x5x3. Sebagai petak utama adalah Olah Tanah Konservasi (OTK), yang terdiri atas 3 level yaitu: (1) TOT(Tanpa Olah Tanah), (2) OTM (Olah Tanah Minimum), (3) OTS (Olah Tanah Sempurna). Sebagai anak petakadalah dosis pupuk urea yaitu berturut-turut: 0, 200, 300, 400 dan 500 kg/ha atau setara dengan 0, 92, 138, 184dan 230 kg N/ha. Sebagai pupuk dasar adalah 150 kg/ha SP 36 dan 100 kg/ha KCl. Hasil penelitianmenunjukkan, bahwa serapan N tertinggi dicapai oleh OTM pada dosis urea 200 dan 300 kg/ha, diikuti TOT danOTS. Serapan P tertinggi dicapai oleh OTS pada dosis urea 400 kg/ha. Serapan K tertinggi dicapai oleh TOTpada dosis urea 200 kg/ha. Produksi jagung tertinggi dari semua sistem OTK pada dosis urea 400 kg/ha, berartiserapan NPK oleh jagung DK 8652 paling efektif pada dosis urea 400 kg/ha.Kata kunci: Olah tanah konservasi, serapan NPK ABSTRACTThe research on conservation tillage system is important, because it can contribute about sustainableagriculture system in Indonesia. The objectives of the research were: to find out the NPK absorption andproduction of corn variety DK 8652 on conservation tillage system at Entisol Klaten. The research wasconducted at Ketandan, Klaten district of Entisol rice field on dry season it has been rice harvesting. Thisexperiment used randomized completely block design with split-plot treatment by 3x5x3. In field experiment,three conservation tillage system (No-tillage, minimum tillage and conventional tillage) as main plot wereprepared with planting corn (Zea mays) variety DK 8652 and were fertilized with five dosages of urea 0, 200,300, 400, 500 kg/ha equivalent to 0, 92, 138, 184, 230 kg N/ha respectively as sub-plot; and were added with150 kg/ha SP 36, 100 kg/ha KCl as base fertilizer. The results of this research showed that N absorption thehighest achieved by OTM on dosage urea 200 and 300 kg/ha followed by TOT and OTS. The P absorption wasthe highest achieved by OTS on dosage urea 400 kg/ha. The K absorption was the highest achieved by TOT ondosage urea 200 kg/ha. Corn production of all conservation tillage system was the highest on dosage urea 400kg/ha, an indication of the NPK absorption by corn variety DK 8652 was more effective on dosage urea 400kg/ha.Key words: conservation tillage, NPK absorption
PEMUPUKAN PADA BUDIDAYA BAWANG MERAH SPESIFIK LOKASI PADA LAHAN PASIR Sutardi, Sutardi
Agrin Vol 21, No 2 (2017): Agrin
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.agrin.2017.21.2.374

Abstract

Kalium merupakan salah satu unsur hara kunci keberhasilan dalam mendukung produksi bawang merahspesifik lokasi di lahan pasir selatan. Tujuan penelitian untukmengetahui dosis optimal pupuk kalium pada bawangmerah spesifik lokasi lahan pasir. Penelitian dilaksanakan selama dua musim kemarau pada bulan Juni-September2015 dan Juni-September 2016 di lokasi Kelompok Tani Manunggal, Desa Srigading, Kecamatan Sanden,Kabupaten Bantul (07o 59’ 8659” S, 110o 15’ 6753” E). Penelitian menggunakan Rancangan Acak Kelompokfaktor tunggal dengan pendekatan Minus One Test yang terdiri dari 7 taraf dan kontrol diulang 3 kali. Responpemupukan kalium menggunakan Rancangan Acak Kelompok dengan 5 perlakuan tingkat dosis 0, 75, 150, 225,dan 300 kg KCl/ha. Hasil penelitian menunjukkan bahwa status hara sebelum penelitian kandungan hara kalium(Kdd) 0.18-0.25 me K/100g-1 status hara sangat rendah (SR), sehingga menjadi faktor pembatas utama. Berdasarkanminus one test dosis pemupukan optimal bawang merah spesifik lokasi lahan pasir ialah KCl 150 kg ha-1 denganpersen hasil relatif tertinggi (120%). Akan tetapi respon dosis pemupukan kalium dosis maksimum 250 kg/ha-1dengan persamaan kuadratik (R2 = 0.556). Produksi bawang merah maksimal mencapai 15-16 t/ha-1 brangkasan(setara dengan 12.75-13.6 t/ha umbi) dengan rendemen umbi ±15%. Oleh karena itu, dalam implementasinyadiperlukan dosis kalium optimal secara spesifik lokasi, tidak dosis umum secara nasional.Kata kunci: lahan pasir, bawang merah, kalium, pupuk NPKABSTRACTPotassium is one of success key of soil nutrient on shallot production support on south sandy land. Theaimed of research is to determine potassium fertilizing respon on shallot in specific location on sandy land. Thestudy was conducted on June-September 2015 and June-September 2016 on Manuggal farmer group, SrigadingVillage, Sanden Districts, Bantul Regency (07o 59’ 8659” S, 110o 15’ 6753” E). The experiment used randomizedblock design with single factor using a with single factor randomized block design with Minus One Test approachconsists of 7 sides and control is repeated for 3. Effectivity respons K fertilizer used randomized block design with5 dose levels of fertilizer treatments 0, 75, 150, 225, and 300 kg KCl/ha. The results showed that soil nutrient ofpotassium (Kdd) is 0,18-0,25 me K/100 g-1 (very low), thus becoming main limiting factor. Minus one test shallotoptimal fertilizing dose sandy land specific location is KCl 150 kg ha-1 with percent result relatively (120%).However, dose response of potassium with maximum dose is 250 kg/ha-1 of quadratic equations R2 0,556.Maximum shallot production reach 15-16 t/ha equivalent with 12,75-13,6 t/ha tuber. Therefore, in itsimplementation required of optimal dosage of potassium on specific location not general national.Key words: sandy land, shallot, potassium, N P K fertilization
KAJIAN DAYA RACUN CUKA (ASAM ASETAT) TERHADAP PERTUMBUHAN GULMA PADA PERSIAPAN LAHAN Pujisiswanto, Hidayat
Agrin Vol 16, No 1 (2012): Agrin
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.agrin.2012.16.1.126

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh konsentrasi cuka (asam asetat) terhadap pertumbuhangulma pada persiapan lahan. Penelitian dilakukan di Politeknik Lampung, Lampung dari bulan Juli sampaidengan September 2011. Rancangan penelitian yang digunakan adalah Rancangan Acak Kelompok Lengkapsatu faktor, yaitu : konsentrasi cuka dengan empat taraf : 0%, 5%, 10% dan 20% dengan empat ulangan. Hasilpenelitian menunjukkan bahwa (1) konsentrasi cuka 10% - 20% mampu mengendalikan pertumbuhan gulmasampai dengan 4 MSA, terlihat dari tertekannya bobot kering dan persentase penutupan gulma total. (2)konsentrasi cuka 10% - 20 % mampu mengendalikan pertumbuhan gulma daun lebar Asystasia gangética,sedangkan gulma daun lebar lain yaitu kacangan (LCC) dan Mikania micrantha mampu dikendalikan dengankonsentrasi 20% sampai dengan 4 MSA. (3) Gulma golongan rumput yaitu Digitaria longiflora tidak mampudikendalikan oleh cuka sampai 8 MSA.Kata kunci : Cuka (asam asetat), Konsentrasi, gulmaABSTRACTThe objective of this research was to think the effect concentrations of vinegar (acetic acid) on growth ofweeds at land preparation. The experiments conducted in Politeknik Lampung, Lampung from July toSeptember 2011. The research design was used Completely Randomized Design (CRD) with one factor, i.e :concentration of vinegar with four levels : 0, 5%, 10%, and 20% with four replications. The results showed that:(1) vinegar concentration of 10% - 20% are able to control weed growth to 4 MSA, seen from the suppression ofthe dry weight and percentage of total weeds. (2) vinegar concentration of 10% - 20% are able to control thegrowth of broad leaf weeds Asystasia gangética, while the other broad leaf weeds are nuts (LCC) and Mikaniamicrantha able to be controlled by the concentration of 20% up to 4 MSA. (3) Type of grass weed i.e Digitarialongiflora is not able to be controlled of vinegar to 8 MSA.Key words : Vinegar (Acetic acid), concentration, weeds
UJI SINERGISME MIKROBA DALAM PUPUK HAYATI KEMASAN TERHADAP PERTUMBUHAN DAN HASIL KACANG TANAH DI LAHAN KERING NON MASAM, GRESIK Prihastuti, Prihastuti; Radjit, Budhi S.
Agrin Vol 17, No 1 (2013): Agrin
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.agrin.2013.17.1.197

Abstract

Penelitian dilaksanakan di Desa Bolo, Kecamatan Ujung Pangkah, Kabupaten Gresik pada MK II 2010,bertujuan untuk mengetahui pengaruh aplikasi pupuk hayati komersial terhadap pertumbuhan mikroba tanah danhasil kacang tanah di lahan kering non masam, yang diberikan secara tunggal maupun ganda. Penelitiandilakukan dengan rancangan acak kelompok dengan tiga ulangan. Ada 6 (enam) jenis pupuk hayati komersialyang digunakan, dengan dosis pemakaian sesuai anjuran dari produsen masing-masing. Varietas kacang tanahyang digunakan dalam penelitian ini adalah varietas Jerapah, ditanam dalam plot 4 m x 4 m, dengan jarak tanam4 cm x 10 cm, 1 biji/lubang. Hasil penelitian menunjukkan, aplikasi agensia hayati mampu menaikkan totalmikroba tanah hingga sepuluh kali-nya, tanpa memperhatikan jenis mikroba yang mampu berkembang. Aplikasiagensia hayati yang mengandung mikroba penambat N non simbiotik, bakteri pelarut P, dan mikrobadekomposer memberikan hasil paling tinggi sebesar 21,40 % dibanding dengan kontrol. Aplikasi agensia hayatisecara ganda di lahan kering non masam tidak menunjukkan hasil yang lebih baik dibandingkan dengan aplikasitunggal, baik dalam peningkatan populasi mikroba tanah maupun hasil biji kacang tanah.Kata kunci: sinergisme, agensia hayati, kacang tanah, hasil biji, mikrobaABSTRACTThe experiment was conducted at Bolo, Ujung Pangkah, Gresik district, in dry season 2010. Thepurposed of the study was to determine the effect of bio-fertilizer applications wether that in single or double onnon-acid dry land to the growth of soil microbes and yield of peanuts. A randomized block design with threereplications was used in this experiment. The treatment consist of 6 (six) types of commercial bio-fertilizers, withthe dosage recommended of each manufacturer. Jerapah variety was planted at plot size 4 m x 4 m, plantspacing 40 x 10 cm, one seed per hole. The results showed that the application of bio-fertilizer was capable toincrease total soil microbial up to ten times, regardless of the microbial types. The application of biologicalagent which contain non symbiotic N fixation microbial, P solubilizing bacterial, and decomposers microbialhad ability to increase the seed yield by 121.40% compared to control. In double application of biologicalagents in non-acid dry land was not showed better results than single application, both in improving soilmicrobial population or the yield.Key words: synergism, biological agent, peanut, seed yield, microbe

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