Warta Informatika Pertanian : Volume 21 No. 2, 2012

ISSN 0852-1743
Terakreditasi dengan Predikat C
Sertifikat No. 383/AU1/P2MBI/07/2011
(SK Kepala LIPI No. 629/D/2011)
Diterbitkan dua kali setiap tahun oleh :
Sekretariat Badan Litbang Pertanian
Badan Penelitian dan Pengembangan Pertanian

Penanggung Jawab :
SEKRETARIS BADAN LITBANG PERTANIAN

Dewan Redaksi :

Ketua :
Dr. Ir. L. Hardi Prasetyo, M.Agr. (Genetika Kuantitatif/Statistika)

Wakil Ketua :

Dr. Ir. Rohlini, M.S. (Manajemen Sumberdaya Pertanian)

Anggota :

Prof.(Riset) Dr. Elna Karmawati, MS. (Entomologi/Statistika)
Prof.(Riset)Dr. Kedi Suradisastra, M.Sc. (Sosiologi dan Kelembagaan Pertanian)
Prof.(Riset) Dr. Ir. Subandriyo, M.Sc. (Pemuliaan dan Genetika Ternak)
Drs. Bambang Sankarto, M.I.M. (Teknologi Informasi)
Dr. Ir. Muhamad Sabran, M.Sc. (Produksi Tanaman/Statistika)
Ir. Erlita Adriani, MBA.  (Sistem Informasi)
Dra. Siti Nurjayanti, M.Sc. (Teknologi Informasi)

Mitra Bestari :

Prof. Dr. Ir. Jann Hidajat Tjakraatmadja. (Knowledge Management and Learning Organizations)
Prof. Dr. Ir. Irsal Las, M.S. (Agroklimat dan Pencemaran Lingkungan)
Prof. Dr. Dewa Ketut Sadra Swastika, M.S. (Ekonomi Pertanian)
Prof. Dr. Ir. I Wayan Rusastra, M.S. (Agroekonomi dan Kebijakan Pertanian)
Dr. Ir. Hari Wijayanto, M.Si. (Statistika)
Dr. Atien Priyanti, M.Sc. (Ekonomi Pertanian)

Redaksi Pelaksana :

Mimbarsono
Mohamad Maulana, A.Md.
Henny R. Sipayung, S.Sos.
Wasiyah Utami, A.Md.
  • Analisis Kebijakan Pengembangan Industri Hilir Kakao (Suatu Pendekatan Sistem Dinamis)

Abdul Muis Hasibuan1)Rita Nurmalina2) dan Agus Wahyudi3)
1).Balai Penelitian Tanaman Industri dan Penyegar
2). Departemen Agribisnis, Fakultas Ekonomi dan Manajemen, IPB
3). Balai Penelitian Tanaman Rempah dan Obat
E-mail :muis_hsb@yahoo.com

The development of downstream industries should be a driving force cacao agribusiness system more competitive national as well as international, however, production of processed cocoa is still very low and the cocoa processing industry did not develop. This study aims to formulate government alternatives policies to developing cocoa downstream industry and increasing cocoa farmers revenue. The data used in this study are secondary data and analyzed by the system dynamics approach. The results were validated in actual conditions by measuring RMSPE, AME and AVE. The RMSPE, AME and EVE obtained for cocoa production were 3.69 percent, 2.17 percent and 4.44 percent, respectivelly. The RMSPE, AME and EVE obtained for processing cocoa were 0.51 percent, 0.30 percent and 0.59 percent, respectively. so the model is declared valid. The results of analysis showed that sixth scenarios seem to be the best policy for development cocoa downstream industry. The best policy alternatives should be implemented by the government are: (i) continue to implement Gernas programs, (ii) improving the productivity and quality of cocoa smallholders who are not involved in the Gernas program, (iii) elimination of cocoa export taxes, but the government give fiscal and monetary incentives such as tax reductions, subsidies lending rates, improving the business environment such as infrastructure improvements, ease of licensing to encourage the growth of the cocoa processing industry.

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  • Simulasi Manajemen Lahan di DAS Ciliwung Hulu menggunakan Model SWAT
Rahmah Dewi Yustika1), Suria Darma Tarigan2), Yayat Hidayat2)
dan Untung Sudadi2)

1) Balai Penelitian Tanah, Jl. Tentara Pelajar no.12 Cimanggu Bogor
2) Institut Pertanian Bogor, Kampus IPB Darmaga Bogor 16680
E-mail rd_yustika@yahoo.com

 Serious problems encountered in watershed management are related to the vegetated-land conversion and increasing areas of critical land. The later is caused by inproper land management ignoring land capability and suitability status, lack of application soil and water conservation techniques and landuse changes. Measurement of various field parameters in watershed scale was not easy because of its complex characteristics which sometime interrelated to each other. A Modelling using Soil and Water Assessment Trool (SWAT) can be useful to understand processes involving those parameters in a watershed. The objectives of this research are: to analyze validation value of SWAT model in sub watershed Ciliwung Hulu and to simulate Best Management Practices in agriculture field in sub watershed Ciliwung Hulu. Methods applied including collection of primary and secondary data, preparation and analyze the input data, application of the SWAT model, analyze of the calibration parameters, determination of the validation values and simulation land management. The research was held in the period of June 2011 until June 2012. Based on the data of daily discharge flow in February and March 2009 and 2011, the validation results showed values of R 0,88 and NSE 0,74. These results described that SWAT model can be used to predict hydrological processes in Ciliwung Hulu watershed. Furtheremore, based on simulation of land management, terrace is the most effective soil conservation technique which can reduce surface runoff until 79,21%.

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  • Peran Inseminator dalam Keberhasilan IB pada Sapi Perah
Tati Herawati1), Anneke Anggraeni1), Lisa Praharani1), Dwi Utami2)
dan Argi Argiris2)

1)Balai PenelitianTernak, Ciawi, Bogor
2)Balai Inseminasi Buatan, Lembang
E-mail :herawati_tati@yahoo.com

 Inseminator expertise in implementing Artificial Insemination (AI) is one of the five critical success factors IB. However, it is not known which Inseminator characteristics most influenced in the success of the IB, therefore it has been tested in dairy cows in Lembang. Tests performed to see the influence of three factors were Inseminator (X1), the dose of semen (X2; 25 million, 20 million and 15 million sperms/straw) and breed of males (X3; Farrel and Forsa) to total pregnancy/conception rate (CR), using analysis of covariance when the parity level as covariate, because the parity cows as acceptors were different. The test results showed no interaction between factors, the breed of males and between the doses used did not affect the number of cattle pregnancy. But Inseminator factors influenced in determining pregnancy. Therefore in testing the next dose is used by installing an analysis covariance which has inseminator as a covariate, not analysis of variance in order to correct the measured parameter values to just caused by the factors tested. Further showed that between Inseminator found that there are differences between the type of character and performance due to differences Inseminator academic (education) and technical (training, period of working). 67% Inseminator categorized as professional who has performs well (CR 59.26 to 77.27%) and 33% in the category of professional with average performance (CR 53.97 to 55.22%). The step-wise results that education is defeated by training with value of R 83.5%. That is, there are other factors that influence the CR of 16.5%. Therefore it is advisable to do further study to determine these other factors. In addition, training is necessary to increase the accuracy of the implementation of the IB to the Inseminator.

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  • Stabilitas Hasil dan Adaptabilitas Genotipe Jagung Hibrida Toleran Kekeringan
    menggunakan Metode Additive Main Effect Multiplicative Interaction (AMMI)

 Fadjry Djufry1) dan Martina S. Lestari2)
1)Balai Pengkajian Teknologi Pertanian Sulawesi Selatan, Jl. Perintis Kemerdekaan Km. 17,5 Sudiang – Makassar 90242
2)Balai Pengkajian Teknologi Pertanian Papua
E-mail :dfadjry2006@yahoo.com

Papua province has the potential of agricultural land that is wide enough spread in several districts. Agricultural development centers in particular commodity corn farmed in many lowland dry climate Keerom district, Jayapura and Merauke. Commodity maize hybrids grown in many diverse agro ecosystems that required extensive varieties that can adapt to various environments. The study aims to assess the stability and adaptability results promising lines 9 and 3 varieties of hybrid maize comparator in 3 locations in Papua. The study was conducted from April to September 2010 at three centers namely maize production Jayapura (Nimbokrang), Keerom (Arso) and Jayapura City (West Koya). Research using randomized block design experiment with 12 treatment in each locations, and three replications. Then analyzed using the additive and multiplicative interaction (AMMI) to determine yield stability and adaptability of each strain. The research material consisted of nine strains of hybrid maize expectation that G1001, G1002, G1003, G1004, G1005, G1006, G1007, G1008, G1009, and 3 varieties as check namely Makmur 4, AS1, and Bima 4. Each strain is grown on plots measuring 3.75 mx 4 m, with a spacing of 75 cm x 45 cm and 1 plant. Stability and adaptability of the tested strains was calculated according to the AMMI analysis methods. The results showed that the average results of nine strains tested were 4.00 to 7.44 t/ ha with a mean of 5.86 t/ ha. Results highest strain G1006 (7.44 t/ha). The results of combined analysis showed that the location, and the interaction is very real strain on grain yield. Use of AMMI models indicate that the strain G1002, G1003, G1008 and G1009 strain identified as a strain stabilized at three test sites (adapted broad), strain G1006 adapt Arso site-specific, site-specific Nimbokrang G1005 and G1007 for the specific strain of West Koya, and Strain G1009 proposed as potentially yielding varieties of high yielding maize hybrids.

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  • Analisis Keuntungan Usahatani dan Distribusi Pendapatan Rumah Tangga
    Petani Ubi Kayu pada Sentra Agroindustri Tapioka di Kabupaten
    Lampung Tengah
Eka Miftakhul Jannahi
Maize breeder’s in ICERI Maros, Sulawesi Selatan-Indonesia,
Jl. Ratulangi Maros – Sulawesi Selatan
E-mail : hg_yasin@yahoo.co.id; balitsereal@litbang.deptan.go.id 

This research aims to analyze: (1) factors which affect farm profitability of cassava farming, (2) the distribution level of household income cassava farmers, and (3) the poverty level of household of cassava farmers. Central Lampung is selected as a research location on the basis that the district in the center of cassava production in Lampung, has 33 agro starch industry from a total of 65 agro industry in Lampung Province. The research was conducted in Indra Putra Subing and Poncowati Village using survey methods. A total of 65 respondents were grouped by land size stratified random sampling method. Lorenz curves and Gini Ratio is use to measure the level of household income distribution. Indicators of household poverty using Sajogyo line, while to measure the factors that effect the profitability of farming using econometric approaches (linier regression models). The results showed: (1) the level of benefits of cassava farm is influenced by the land area, cassava prices, the price of seed, fertilizer KCL prices, the number of labor, freight, and the total of production, (2) The total income distribution of households affected farmers by revenues from agriculture, non-farm and family income. Distribution of total income inequality is low category, the total revenue can provide the distribution of income among farm households growing cassava evenly, (3) the level of household income of cassava farmers showed that the group of households large estates and land being included in the category of pretty. Household groups, including the narrow 1,89 percent very poor, poor 5.66 percent, 15.09 percent and 79.25 percent almost poor enough category.

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  • Preferensi Responden terhadap Keragaan Tanaman dan Kualitas Produk
    Beberapa Varietas Unggul
    Baru Padi
Wage Ratna Rohaeni, Anna Sinaga, dan M. Iskandar Ishaq
Balai Pengkajian Teknologi Pertanian Jawa Barat,
Jl. Kayuambon No.80 Lembang Bandung Barat 40391, Indonesia
e-mail: wagebptpjabar@gmail.com 

The new varieties is one of basic crop management technology that used dominantly by farmer to improving yield until now. New varieties is a technology that adopted by farmer fasterly if the characters of varieties was according to the farmer’s preferences. To support development of new varieties by research centers of rice, West Java AIAT made a Technology Showing in the form of display new varieties in field. Farmers could choose the varieties that they like after they look them at display of varieties so we (Seed government institution) can targeting the production of the most preferred varieties. Research was being done at March – October 2012th in Karawang by partisipatory model with farmers. Five new varieties (Inpari 13, 14, 15, 20, and Sidenuk) was used and Ciherang Jumbo as a control. The tirty agriculture instructors from all district in Karawang and twenty farmers participate on this research as respondens. This research was being done by using survey method. Respondens gave a value on characters of plant (performance in display, grain, and rice) tha we analized to know they preferences to new varieties. The research saw that Inpari 14 was the most likely by respondens after Ciherang. Inpari 20 was the most likely for shape grain chategory, Inpari 15 for grain color chategory, and Ciherang for shape of grains and size of polished rice. All responden like all characters of rice. Selection of varieties based on respondent’s preference on form of polished rice could be determined by looking respondent’s preference on grain shape’s chracater. While the selection of varieties based on respondent’s preference on the characters of rice can not be predicted by an assessment of the characters on grain and rice.

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