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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.
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Search results for , issue "Vol 12, No 2 (2008): Agrin" : 10 Documents clear
PENDUGAAN DAYA GABUNG DAN HETEROSIS KARAKTER HORTIKULTURA CABAI (Capsicum annuum L.) Agus Riyanto; Sriani Sujiprihati; Sri Hendrastuti H
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.2008.12.2.87

Abstract

Penelitian ini bertujuan untuk informasi tentang nilai Daya Gabung Umum (DGU), nilai Daya GabungKhusus (DGK) dan nilai heterosis karakter hotikultura Capsicum annuum.. Percobaan ini menggunakan 21genotip yang terdiri atas 6 tetua dan 15 hibridanya. Rancangan acak kelompok lengkap dengan tiga ulangandigunakan dalam penelitian ini. Hasil penelitian menunjukkan bahwa berdasarkan pendugaan daya gabungkhusus, nilai heterosis dan nilai tengah karakter maka 12 hibrida berpotensi untuk dijadikan varietas hibridaberdaya hasil tinggi. Kedua belas hibrida tersebut adalah IPB C2 x IPB C14, IPB C2 x IPB C4, IPB C2 x IPBC9, IPB C2 x IPB C10, IPB C14 x IPB C9, IPB C14 x IPB C10, IPB C14 x IPB C1, IPB C4 x IPB C9, IPB C4x IPB C10, IPB C4 x IPB C1, IPB C9 x IPB C10 dan IPB C10 x IPB C1.Kata kunci: Capsicum annuum, DGU, DGK, heterosisABSTRACTThe objectives of this research were to estimate general combining ability (GCA), specific combiningability (SCA) and heterosis of horticulture character. One set of population from half diallel mating, involving 6parents and 15 hybrids were used in this research. Randomized Completely Block Design was used in thisresearch with there replication. It was evidence that showed based on GCA, SCA heterosis and mean, 12 hybridi.e. IPB C2 x IPB C14, IPB C2 x IPB C4, IPB C2 x IPB C9, IPB C2 x IPB C10, IPB C14 x IPB C9, IPB C14 xIPB C10, IPB C14 x IPB C1, IPB C4 x IPB C9, IPB C4 x IPB C10, IPB C4 x IPB C1, IPB C9 x IPB C10 danIPB C10 x IPB C1 are potential to be made high yielding hybrid varieties.Key words: Capsicum annuum, GCA, SCA, heterosis
EVALUASI SEPULUH KULTIVAR LOKAL BAWANG MERAH (Allium ascalonicum L.) DI KERSANA BREBES Kurniawan, Helmi; Kusmana, Kusmana; Basuki, R. S.
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.2008.12.2.90

Abstract

Penelitian bertujuan untuk mendapatkan kultivar bawang merah lokal yang cocok ditanam diKersana Brebes. Jumlah kultivar yang diuji sebanyak 10 buah ditambah 2 kultivar pembanding yaitutanduyung dan ilokos. Rancangan percobaan yang digunakan adalah Rancangan Acak Kelompok denganpopulasi tanaman per plot sebanyak 500 tanaman. Penelitian diulang sebanyak 3 kali. Hasil penelitianmenunjukkan bahwa tidak ada kultivar lokal yang menampilkan hasil yang lebih baik dari varietas impor,kultivar lokal yang menampilkan daya hasil tinggi di Kersana Brebes adalah kultivar Kuning Tablet dan kultivarBima Curut memiliki persentase ukuran umbi besar yang cukup tinggi.Kata kunci: Allium ascalonicum L, kultivar lokal, hasil  ABSTRACTEvaluation of 10 local cultivars of shallot (Allium ascalonicum L.) in Kersana Brebes. The objective ofthe research was selected shallot cultivar with high yielding in Kersana Brebes. Number of' cultivars planted were10 included 2 of import popular varieties checks namely tanduyung and ilokos. Experimental designused was Randomized Complete Block Design, an experiment unit consisted of 500 hills. Number ofreplication was 3 times. The result finding that there is no any local cultivars showed better than import varieties.The highest yielding local cultivars were obtained from cultivar Kuning Tablet, whereas the highest percentagetuber size was cultivar Bima Curut.Key words: Allium ascalonicum L., local cultivar, yield  
PROFIL PENGEMBANGAN TANAMAN PANGAN DI KABUPATEN CILACAP JAWA TENGAH E, Adwi Herry K.; Tobari, Tobari
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.2008.12.2.86

Abstract

Pembangunan sektor pertanian harus mampu memanfaatkan keunggulan komparatif dari setiap wilayahyang berbeda, sehingga mampu memberikan dampak ekonomi pada wilayah tersebut. Penelitian bertujuan untukmempelajari wilayah yang berpotensi memiliki komoditas basis tanaman pangan yang bersifat spesifik danmemiliki unggulan pasar, sebaran masing-masing komoditas tanaman pangan di wilayah yang bersangkutan,surplus produksi atau pendapatan komoditas basis tanaman pangan di setiap wilayah, pengaruh efek penggandaproduksi atau pendapatan komoditas basis tanaman pangan terhadap peningkatan produksi atau pendapatankomoditas non basis, dan Tingkat pertumbuhan komoditas basis tanaman pangan. Hasil penelitian menunjukkan:(1) Terdapat 6 komoditas basis tanaman pangan di Kabupaten Cilacap yaitu padi sawah, jagung, kedelai, kacanghijau, kacang tanah, dan ubi kayu, (2) Menurut lokalisasinya budidaya komoditas tanaman pangan cenderungmenyebar tidak merata, dan tidak ada satupun wilayah kecamatan yang melakukan spesialisasi pada komoditastanaman pangan tertentu, (3) Surplus produksi setiap wilayah kecamatan ada yang bernilai positif dan negatif,tetapi hampir semua komoditas basis memberikan kontribusi yang besar terhadap surplus di tingkat wilayahkecamatan, (4) Nilai efek pengganda produksi terbesar adalah Kecamatan Cipari, Karangpucung, dan KecamatanKawunganten dan (5) Hampir semua komoditas tanaman pangan mengalami pertumbuhan pesat dan secaraumum 8 komoditas basis yang ada menjadi komoditas andalan di masing-masing Kecamatan di KabupatenCilacap.Kata kunci: tanaman pangan, keunggulan komperatif, kabupaten CilacapABSTRACTDevelopment agricultural sector have to able to exploit the comparability excellence from each everydifferent region, so that able to give the economic impact at the region. Agriculture represent the especialactivator of economic development of national. The mentioned caused agriculture able to create the economicgrowth, make-up of foreign exchange, development of food resilience, continuation of environment, opportunityextension work and try, and also economic development acceleration generalization [of] area. Therefore,rebuilding Indonesia economics of agriculture area precisely and realistic (Saragih,1999). Developmentagricultural sector of intensification program ekspanding, rehabilitate, up to diversified also the included inpriority category to be developed, besides industrial area development and service. The mentioned by product toagricultural produce can be instructed better so that able to compete [in] international and also local market. Thisresearch aimed to determine the region which have potency own the commodity of bases of food crop having thecharacter of specific and own to exeed the market, swampy forest of each commodity of food crop in pertinentregion, surplus produce or earnings of commodity of bases of food crop in each every region, influence of effectmultiplyer produce or earnings of commodity of bases of food crop to product increase or commodity earningsof[is non bases, and Mount the growth of commodity of bases of food crop. Result of research menunjukan that:(1) There are 6 commodity of bases of food crop [in] Regency Cilacap that is rice field paddy, maize, soy, greenpeanut, peanut, and cassava, ( 2) According to its localization [is] budidaya of commodity of food crop tend to todisseminate do not flatten, and there no regional of subdistrict conducting specialization of at certain food cropcommodity, (3) Surplus produce each;every subdistrict region there [is] negative and positive valuable, but mostof all bases commodity give the big contribution to surplus in regional storey level of subdistrict (4) Value ofbiggest effect pengganda production be subdistrict Cipari, Karangpucung, and Subdistrict Kawunganten and (5)Most of all commodity of food crop experience of the fast growth in Regency Cilacap, and in general 8 existingbases commodity become the pledge commodity in each subdistrict of exist in Regency CilacapKey words: area, food crops, comparativeness, Cilacap District
PENGARUH PEMASTEURAN TANAH TUNGGAL ATAU DIGABUNG AGENSIA HAYATI TERHADAP PENYAKIT BUSUK HATI DI PEMBIBITAN PISANG Haryono, Joko; Prihatiningsih, Nur; Wardhana, Rahman A.; Soesanto, Loekas
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.2008.12.2.91

Abstract

Tujuan penelitian ini adalah mengetahui pengaruh pemasteuran medium digabung dengan agensia hayatidan agensia hayati yang paling efektif terhadap penyakit busuk hati. Penelitian dilakukan di PT NusantaraTropical fruit, Lampung Timur dengan rancangan Petak Terbagi dan diulang tiga kali. Petak utama adalahmedium dipasteur atau tidak. Anak-petak adalah control dengan air steril, Trichoderma harzianum isolat jahedan pisang, Pseudomonas fluorescens P60, dan Fusarium equiseti diisolasi dari akar pisang. Peubah yangdiamati adalah masa inkubasi, intensitas penyakit, populasi konidium Fusarium akhir, akar berpotensi terinfeksi,tinggi tanaman, jumlah daun, jumlah akar primer dan sekunder, panjang akar, dan berat akar. Hasil penelitianmenunjukkan bahwa perlakuan gabungan memberikan hasil positif khususnya menurunkan intensitas penyakitsampai 43,57%. Agensia hayati T. harzianum isolat pisang dan P. fluroescens P60 yang digabung denganpemasteuran medium dapat menekan intensitas penyakit masing-masing sebesar 63,08 dan 59,75%. Agensiahayati yang paling efektif adalah T. harzianum isolat pisang karena menekan kepadatan Fusarium, meningkatkantinggi tanaman, dan meningkatkan berat akar masing-masing sebesar 41,12, 39,00, dan 98,86%.Kata kunci: busuk hati, bibit pisang, pemasteuran, agensia hayati ABSTRACTThe objectives of this research were to know the effect of pasteurized media combined with biologicalagents and the most effective biological agent on heart rot disease. The research was carried out at PT NusantaraTropical Fruit, East Lampung designed by Split Plot Design and repeated three times. The main plot waspasteurized and unpasteurized media. The subplot was control with sterile water or fungicide, Trichodermaharzianum isolated from ginger or banana, Pseudomonas fluorescens P60, and Fusarium equiseti isolated frombanana root. Variables observed were incubation period, disease intensity, late Fusarium conidial population,potentially infected root, crop height, leave numbers, primary or secondary root numbers, root length, and rootweight. Result of the research indicated that the combination treatments gave positively result specially to reducedisease intensity of 43.57%. Biological agents of T. harzianum banana isolate and P. fluorescens P60 combinedwith the pasteurisation could suppress disease intensity of 63.08 and 59.57%, respectively. The most effectivebiocontrol agent was T. harzianum banana isolate because of suppressing Fusarium density, increasing plantheight, and increasing root weight as 41.12, 39.00, and 98.86%, respectively.Key words: heart rot, banana seedlings, pasteurization, biological agents 
KINERJA PEMASARAN DAN DAYA SAING EKSPOR KAKAO INDONESIA (Studi Kasus di Propinsi Sulawesi Tenggara) Supriatna, Ade; Dradjat, Bambang
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.2008.12.2.85

Abstract

Penelitian dilaksanakan tahun 2005 di Kabupaten Kolaka, daerah sentra produksi kakao SulawesiTenggara. Tujuan penelitian, yaitu: (1) menganalisis pemasaran kakao di tingkat petani dan (2) menganalisiskinerja ekspor kakao terutama daya saing kakao Indonesia di pasar internasional. Penelitian menggunakanmetoda survai. Hasil penelitian menunjukan, bahwa petani menjual kakao melalui tiga saluran pemasaran, yaitu:pertama, petani menjual kakao ke pengumpul, dari pengumpul ke pedagang besar lalu pedagang besarmenjualnya ke eksportir; kedua petani menjual kakao ke pengumpul lalu pengumpul menjualnya ke eksportir;ketiga, petani menjual kakao ke pedagang besar lalu pedagang besar menjualnya ke eksportir. Saluran pertamapaling sering digunakan oleh petani dibandingkan saluran lainnya. Pada setiap saluran, eksportir selalumemperoleh keuntungan paling besar (antara Rp.1.000 sampai Rp.1.050/kg) dibandingkan pelaku pasar lainnya.Hal ini sudah wajar karena mereka mengeluarkan biaya besar untuk mendapatkan mutu barang sesuaipermintaan importir, menanggung resiko akibat perubahan harga di pasar dunia serta perubahan nilai tukarrupiah terhadap mata uang asing. Ekspor kakao Indonesia belum berorientasi pasar, melainkan masihberorientasi produksi dimana perkembangan volume ekspor tidak sejalan dengan perkembangan nilai ekspor.Hasil analisis RCA selama sembilan tahun (1995-2004) menunjukkan bahwa daya saing kakao Indonesiacenderung menurun (0,11%/tahun) dan juga Ghana (3,98%) dan Pantai Gading (2,59%) per tahun. Sementara,negara eksportir lainnya mengalami kenaikan seperti Belgia (35,09%), Belanda (8,15%), Nigeria (4,82%) danKamerun (1,52%) per tahun. Pemerintah perlu memberikan dukungan kebijakan yang kondusif untukmeningkatkan daya saing kakao Indonesia. Perbaikan diperlukan mulai dari tingkat usahatani melalui penerapanteknologi unggulan, perbaikan pasca panen dan pemasaran.Kata kunci: kakao, analisis pemasaran dan eksporABSTRACTThis study was conducted in 2005 and taken place in Kolaka District, a centre of cacao production ofSulawesi Tenggara. The objectives of study were : (1) to analyze the marketing of cacao in farmer level and (2)to analyze the performance of cacao export especially its competitiveness in international market. This studyused the method of survey. Result showed, that the farmer sold cacao through three marketing channels, that is:the first channel, the farmer sold cacao to collector, from collector to wholesaler then the wholesaler sold it toexporter; the second channel, the farmer sold cacao to collector then the collector sold it to exporter; the thirdchannel, the farmer sold cacao to wholesaler then wholesaler sold it to exporter. The first channel was the mostoften used by farmer compared to other channels. In each marketing channel, exporter always obtained thehighest benefit (from IDR.1,000 to IDR.1,050/Kg) compared to other market actors. The exporter spend a lot ofcost to get quality of cacao according to importer request, took some risks caused by the price change in theworld market and also change of the exchange rate of rupiah to foreign money. The export of Indonesia cacaowas not yet oriented to the market, but still oriented to production. Where the growth of export volume did not inline with the growth of export value. The result of RCA analysis during nine years (1995-2004) indicated thatIndonesia cacao competitiveness showed decreasing (0.11%/year) and also Ghana (3.98%) and Ivory Coast(2.59%). While the others countries showed increasing like Belgium (35.09%), Netherlands (8.15%), Nigeria(4.82%) and Cameroon (1.52%) per year. Government required doing some conductively policy to supportincreasing the competitiveness of Indonesia cacao. Some improvements were needed from on-farm level throughadopting recommended technology, post-harvest handling and marketing.Key words: cacao, marketing and export
PEWARISAN SIFAT PANJANG POLONG PADA PERSILANGAN BUNCIS TEGAK (Phaseolus vulgaris L.) KULTIVAR FLO DAN KULTIVAR RICH GREEN Joko Pinilih; Sartono Putrasamedja
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.2008.12.2.92

Abstract

Persilangan buncis kultivar FLO yang mempunyai hasil rendah dan kultivar Rich Green yang mempunyaihasil tinggi telah dilakukan di Wonogiri , Jawa Tengah dan Lembang, Jawa Barat sejak bulan September 2002sampai bulan November 2004. Penelitian bertujuan untuk mempelajari pewarisan sifat panjang polong.Parameter yang diamati adalah panjang polong. Penelitian dilakukan tiga tahap : (1). Pembentukan F1 yaitupersilangan antara FLO (P1) dengan Rich Green (P2) dan persilangan resiproknya (F1r). (2). Pembentukan F2yaitu dari F1 yang diselfing, pembentukan BC11 yang merupakan persilangan antara F1 dengan P1 danpembentukan BC12 yaitu persilangan dari F1 dengan P2. (3). Evaluasi P1, P2, F1, F2, BC11 dan BC12. Hasilpenelitian menunjukkan bahwa sifat panjang polong diwariskan secara kuantitatif, dikendalikan oleh banyak gen(poligenik). Nilai duga heritabilitasnya tergolong tinggi dan nilai duga kemajuan genetiknya cukup tinggi. Tidakterdapat pengaruh tetua betina dalam pewarisan sifat panjang polong, Sifat panjang polong dikendalikan olehgen-gen di dalam inti.Kakta kunci: buncis, pewarisan sifat, panjang polong, heritabilitas, kemajuan genetik ABSTRACTCrossing of beans ( Phaseolus vulgaris L ) between FLO Cultivar that have law yield and Rich Greencultivar that have high yield has been done at Wonogiri , Central Java and at Lembang, West Java sinceSeptember 2002 to November 2004. The objective of research was to study the inheritance of pod length .Parameters observed was pod length. The research was done in three stages : (1). Establishment of F1 fromcrossing between FLO (P1) and Rich Green (P2) and its reciprocal crossing (F1r). (2). Establishment F2 fromselfing of F1. BC11 was made from crossing between F1 with P1 and BC12 was made between crossing F1 andP2. (3). Evaluation of P1, P2, F1, F1r,F2, BC11 and BC12. Result of the research showed that Pod lengthcharacter was inherited quantitatively , it was controlled by many genes. The heritability estimate of pod lengthcharacter was categorized of high and the expected genetic advance was rather high. There was no mathernaleffect in inheritance of pod length character. The character of pod length was controlled by the nuclear genes.Key words: Phaseolus vulgaris,Inheritance, pod length, heritability, genetic advance 
GALUR KEDELAI HITAM PROSPEKTIF UNTUK AGROEKOSISTEM INDONESIA Adie, M. M.; Suyamto, Suyamto; Krisnawati, Ayda
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.2008.12.2.93

Abstract

Kedelai hitam penting untuk bahan baku kecap dan dalam dekade terakhir permintaannya meningkat.Prospek lima galur harapan kedelai hitam (9837/K-D-8-185, 9837/K-D-3-185-195, W/9837-D-6-220, 9837/K-D-3-185-82 dan 9837/W-D-5-211) dikaji di 18 sentra produksi kedelai di Jabar, DIY, Jatim, Bali dan NTB padamusim kemarau. Varietas Cikuray, Wilis dan Burangrang digunakan sebagai pembanding. Penelitian dilakukantahun 2004 – 2006, menggunakan rancangan acak kelompok dengan empat ulangan. Ukuran petak 2,0 m x 4,5m, jarak tanam 40 cm x 15 cm, dua tanaman per rumpun. Pemupukan dengan 50 kg Urea, 100 kg SP36 dan 75kg KCl per ha diberikan secara sebar merata sebelum tanam. Pengendalian gulma, hama dan penyakit dilakukanintensif. Ragam 18 agroekosistem dan potensi genetik delapan galur berlainan dan menyebabkan terjadinyainteraksi genotipe x lingkungan (G x L). Rata-rata hasil biji dari 18 lokasi berkisar dari 2,09 hingga 2,92 t/ha(rata-rata 2,36 t/ha) dan rentang hasil dari delapan galur beragam dari 2,03 hingga 2,51 t/ha. Varietas Cikurayberdaya hasil 2,03 t/ha; dan lima galur kedelai hitam memiliki daya hasil 18% lebih tinggi dibandingkanCikuray, bahkan kelima galur kedelai hitam juga mampu berproduksi lebih tinggi dibandingkan varietas kedelaipopuler saat ini yaitu Wilis (2,36 t/ha) maupun varietas kedelai berbiji besar Burangrang (2,20 t/ha).Agroekosistem budidaya kedelai di Indonesia sangat beragam, sehingga diperlukan galur yang mampu berdayahasil relatif stabil pada lingkungan tersebut. Galur 9837/W-D-5-211 (2,46 t/ha) memiliki fluktuasi hasil di 18lokasi relatif kecil, karenanya dinilai paling prospektif untuk agroekosistem Indonesia.Kata kunci : kedelai hitam, potensi hasil ABSTRACTBlack soybean is an important raw material for soy-sauce industries, which its demand is increasing at thelast decade. Five prospective of black soybean lines (9837/K-D-8-185, 9837/K-D-3-185-195, W/9837-D-6-220,9837/K-D-3-185-82 dan 9837/W-D-5-211) were tested at 18 locations of soybean production areas in WestJava, Yogyakarta, East Java, Bali and West Nusa Tenggara. Cikuray, Wilis and Burangrang were used as checkvarieties. The experiment was done during dry season 2004-2006, by using randomized block design with fourreplicates. The plot size was 2,0 m x 4,5 m, 40 cm x 15 cm plant distance, two plants/hill, and fertilized by 50 kgUrea, 100 kg SP36 and 75 kg KCl per ha. The results showed that the soybean agroecosystems were vary among18 locations, caused significantly interaction between genotype x environments (G x E). The seed yield averagefrom 18 locations was 2,09-2,92 t/ha (average 2,36 t/ha) and seed yield of eight genotypes was from 2,03 until2,51 t/ha. The Cikuray seed yield was 2,03 t/ha. Five black soybean lines have 18% higher yield than Cikuray,also higher comparing with the yield of populer variety of Wilis (2,36 t/ha) and large seed variety of Burangrang(2,20 t/ha). The high yield and stable promising lines were needed for soybean cultivation in Indonesianagroecosystem. Genotype of 9837/W-D-5-211 (2,46 t/ha) was identify as a relatively stable and prospective linefor Indonesian agroecosystem.Key words: black soybean, yield potential 
ANALISIS MODEL HABBERSTAD PADA PRODUKSI DAN PRODUKTIVITAS AGROINDUSTRI KEDELAIDI KABUPATEN BANYUMAS JAWA TENGAH Hartati, Anny; Rosyad, Anisur
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.2008.12.2.88

Abstract

Posisi keseimbangan penawaran dan permintaan nasional dalam sepuluh tahun terakhir menunjukkanadanyakekurangan penawaran kedelai di dalam negeri. Tujuan dilakukan penelitian adalah mengetahui produktivitasparsial dan produktivitas total agroindustri berbasis komoditas kedelai dan produk olahannya di KabupatenBanyumas.Hasil penelitian menunjukkan bahwa pada produktivitas parsial: 1) produktivitas tenaga kerja cenderungmenurun yang disebabkan oleh rendahnya produktivitas tenaga kerja itu sendiri: 2) produktivitas modal cenderungmenurun yang disebabkan oleh rendahnya volume penjualan dan meningkatnya jumlah modal; 3)produktivitasproduksi tidak menunjukkan fluktuasi yang mencolok yang disebabkan oleh peramalan permintaan; 4) perencanaandan pengendalian produksi yang relatif cermat; 5) produktivitas organisasi cenderung menurun yang disebabkan olehturunnya volume penjualan; 6) produktivitas penjualan cenderung menurun yang disebabkan oleh luaran bernilainegatif; dan7) produktivitas produk menurun yang disebabkan oleh pemborosan biaya produksi.Sedangkanproduktivitas total cenderung menurun yang disebabkan oleh pemborosan biaya produksi.Kata kunci : Habberstad, produksi, produktivitas, agroindustri, kedelai. ABSTRACTThe position of the national balance of supply and demand in the last ten years indicates a shortage ofsoybeans in the domestic supply. The objectives of the research were to determine partial and total productivity ofsoybean agro-based and processed products in Banyumas. The results showed that the partial productivity: laborproductivity tended to decline due to the low productivity of labor itself; capital productivity tended to decreasecaused by lower sales volume and theincreasing amount of capital, production productivity showed no strikingfluctuations caused by forecasting demand, production planning and control are relatively accurate; organizationalproductivity tended to decline due to the declining in sales volume, sales productivity tended to decline due to thenegativeoutcome, and productivity decreases product waste caused by production costs. The total productivity tendedto decrease caused by production costs.Key words: Habberstad, product, productivity, agro-industry, soybean.
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
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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
STUDI KETIDAK SELARASAN ANTARA TANAH DAN BATUAN KARBONAT YANG MEMBAWAHINYA PADA JALUR BARON – WONOSARI GUNUNGKIDUL Mulyanto, Djoko
Agrin Vol 12, No 2 (2008): Agrin
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (221.839 KB) | DOI: 10.20884/1.agrin.2008.12.2.89

Abstract

Tujuan penelitian adalah mengaji ketidakselarasan antara tanah dan batuan karbonat yangmembawahinya. Analisis baik tanah maupun batuan karbonat meliputi komposisi mineral dan kimia. Komposisimineral fraksi pasir tanah di atas batugamping dirajai oleh labradorit sedangkan fraksi lempungnya oleh haloisitdan kaolinit. Kristobalit juga dijumpai terutama pada tanah-tanah di lingkungan karst. Berdasarkan macammineral tersebut diduga bahan induk tanah banyak dipengaruhi oleh bahan volkanik. Komposisi batugampingdirajai kalsit dan kuarsa. Terdapat perbedaan yang tegas antara komposisis mineral tanah dan batugamping,nisbah Fe tanah dan batugamping sangat rendah, adanya lithic contact yang sangat tegas. Terdapat mintakatpelapukan napal yang membawahi tanah, nisbah Fe tanah/ napal jauh lebih tinggi dibanding terhadapbatugamping, kadar CaCO3 napal rendah, dan baik tanah mapun napal mengandung smektit sehingga dikatakanbahwa napal bersifat mewariskan pada tanah yang terbentuk. Labradorit juga melimpah pada tanah di atas napal.Berdasarkan faktor-faktor tersebut maka disimpulkan bahwa ada ketidakselarasan antara tanah dan batugampingyang membawahinya kecuali pada napal. Bahan volkanik sangat berpengaruh sebagai bahan induk tanah.Kata kunci: batuan karbonat, bahan volkanik, batugamping, tanah, ketidakselarasan ABSTRACTThe aim of research was to study of the unconformity of soil–carbonate rock underlying relationship.Analysis both soil and carbonate rock cover minerals and chemical composition. Sand fraction mineralcomposition of soil overlying limestone dominated by labradorite whereas clay fraction by halloysite andkaolinite. Chrystobalite also was found especially on soils of karst area. Based of those minerals, soil parentmaterial predicted much be influenced by volcanic material. Limestone mineral composition dominated bycalcite and quartz. There are distict differences of carbonate mineral composition and soils, ratio Fe of soil/limestone is very low, and there is a sharply lithic contact of soil and limestone underlying. Soils overlying marlshow paralithic contact, there is a zone of marl weathering, and ratio Fe of soil to marl is higher than ratio Fe ofsoil to limestone, and CaCO3 concentration lower than limestone. Both soils and marl underlying containsmectite. Based factors above be said that marl have inheritate characteristic. Sand fraction minerals of soiloverlying marl are also dominated by labradorite. Based on boundary of soil and rock material underlying andkind of minerals concluded that there are unconformity between soils and limestone underlying, but relationshipbetween soils and marl underlying are conformity. Soils underlying carbonate material much be influenced byvolcanic material.Key words: carbonate, volcanic materials, limestone, soil, unconformity

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