M. Anang Firmansyah
Balai Pengkajian Teknologi Pertanian Kalimantan Tengah Jl. G. Obos Km. 5 Po. Box 122 Palangka Raya

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ANALISIS NERACA KELEMBABAN TANAH AKIBAT PERUBAHAN LANDUSE DI SUB-DAERAH ALIRAN SUNGAI MASIEN KALIMANTAN TENGAH Firmansyah, M. Anang
Jurnal Pengkajian dan Pengembangan Teknologi Pertanian Vol 13, No 3 (2010): November 2010
Publisher : Jurnal Pengkajian dan Pengembangan Teknologi Pertanian

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Abstract

Soil Moisture Balance Analysis Due to Land Use Change in Masien Sub –Wathershed, CentralKalimantan. Water availability is very important during dry months, because of low precipitation andevapotranspiration processes from soil surface and plants. The aim of this research was to predict the changeof soil moisture deficit and evapotranspiration, due to forest change to grass land use in Masien Sub-Watershedof Central Kalimantan. Analysis was based on monthly average precipitation and precipitation > 50% based ongamma distribution probability. Result of this study indicated that higher forest land had soil moisture deficit andactual evapotranspiration than after change to grass land use. The use of average precipitation is resulting lowsoil moisture deficit and evapotranspiration than precipitation > 50% based on gamma distribution probability.Keys words: Evapotranspiration, forest, Imperata cylindrica, Central Kalimantan. Ketersediaan air sangat penting terutama di musim kemarau, sebab pada musim tersebut curah hujan rendahdan juga terjadi proses evapotranspirasi dari permukaan tanah dan tanaman. Tujuan penelitian ini untuk memprediksiperubahan besarnya defisit air tanah dan evapotanspirasi akibat perubahan landuse, yaitu dari hutan menjadi lahan alangalang(Imperata cylindrica) di Sub-DAS (Daerah Aliran Sungai) Masien Kalimantan Tengah. Analisis didasarkanpada curah hujan rata-rata dan curah hujan berpeluang melampaui 50% berdasarkan peluang sebaran gamma. Hasilnyamenunjukkan bahwa landuse hutan mengalami defisit air tanah dan evapotranspirasi aktual lebih tinggi dibandingkansetelah landuse berubah menjadi alang-alang. Penggunaan curah hujan rata-rata menunjukkan defisit air tanahjauh lebih rendah dibandingkan penggunaan curah hujan melampaui 50% berdasarkan peluang distribusi gamma.Kata kunci: Evapotranspirasi, hutan, Imperata cylindrica, Kalimantan Tengah
KAJIAN PUPUK ALTERNATIF DI LAHAN KERING KALIMANTAN TENGAH Krismawati, Amik; Firmansyah, M. Anang
Jurnal Pengkajian dan Pengembangan Teknologi Pertanian Vol 8, No 3 (2005): November 2005
Publisher : Jurnal Pengkajian dan Pengembangan Teknologi Pertanian

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Abstract

The success of agricultural intensification program depend on the avalaibility of production input such asfertilizer. Due to various problems, in the field, price increases and limited supply, farmers have difficulties inobtaining anorganic fertilizers such as Urea, SP-36 and KCl. In this circumstances the Government gave permitted thedistribution of alternative fertilizer. This policy cause the increase non standard alternative fertilizer circulated in themarket which need to be tested for its quality and effectiveness. Assessment on alternative fertilizer in dry land wasconducted at Batuah Villlage, Dusun Tengah, South Barito, Central Kalimantan since October 2002 until January2003. The types of soil was ultisol and the altitude was 42 m above sea level. The assessment purpose are : (1) Toknow how about effect alternative fertilizer to maize; and (2) To find out the alternative fertilizer of macro anorganicon maize in Central Kalimantan. The macro anorganic fertilizers used in this study were NPK Mutiara, NPK GrandS-15 and NPK Phonska, where the NPK content are 16:16:16; 15:15:15; 15:15:15 respectively. Randomized BlockDesign with eight treatments and four replications was used. The treatments were (1) Parsial Control; (2) Singlefertilizer (Recommendation); (3) NPK Mutiara; (4) NPK Grand S-15; (5) NPK Phonska; (6) Single fertilizerequivalent Mutiara; (7) Single fertilizer equivalent Grand S-15; and (8). Single fertilizer equivalent Phonska. Datawere analyzed using ANOVA and DMRT. The results showed that alternative fertilizer NPK Phonska was able toincrease maize yield 2.43 point, i.e.5.70 tons/ha compared with 2.35 tons/ha and improve profit value added by Rp3,592,500,-/ha with input cost Rp 763,000,-..Key words : alternative fertilizer, Zea mays, dry land farming, Central KalimantanKeberhasilan meningkatkan produksi pertanian melalui kegiatan intensifikasi tidak terlepas dari peranan saranaproduksi antara lain pupuk. Adanya berbagai masalah di lapangan sehingga petani sulit mendapatkan pupuk anorganiktunggal (Urea, SP-36 dan KCl), harga pupuk yang semakin meningkat, ketersediannya yang terbatas, makapemerintah memberi kesempatan peredaran pupuk alternatif. Kebijakan pintu terbuka menyebabkan banyak beredarpupuk-pupuk alternatif yang mutunya masih diragukan, sehingga perlu dilakukan pengujian mutu pupuk danefektivitasnya di lapang. Pengkajian pupuk alternatif di lahan kering dilaksanakan di Desa Batuah, Kecamatan DusunTengah, Kabupaten Barito Selatan, Kalimantan Tengah, mulai bulan Oktober 2002 sampai dengan Januari 2003.Ketinggian tempat lokasi pengkajian 42 meter di atas permukaan laut (dpl) dan jenis tanah ultisols. Adapun tujuanpengkajian ini adalah untuk (1) Mengetahui pengaruh pupuk alternatif pada jagung; dan (2) Mendapatkan teknologipupuk alternatif kelompok makro anorganik pada tanaman jagung yang tersedia di Kalimantan Tengah. Pupuk makroanorganik yang digunakan yaitu NPK Mutiara, NPK Grand S-15 dan NPK Phonska masing-masing mempunyaikandungan unsur hara N, P dan K yaitu 16:16:16, 15:15:15 dan 15:15:15. Rancangan percobaan menggunakanRancangan Acak Kelompok (RAK) dengan delapan perlakuan dan tiga ulangan. Perlakuan yang dikaji adalah (1)Kontrol parsial; (2) Pupuk tunggal NPK Rekomendasi; (3) Pupuk NPK Mutiara; (4) Pupuk NPK Grand S-15; (5)Pupuk NPK Phonska; (6) Pupuk tunggal setara Mutiara; (7) Pupuk tunggal setara Grand S-15; dan (8) Pupuk tunggalsetara Phonska. Data dianalisis dengan menggunakan ANOVA dilanjutkan dengan uji DMRT. Hasil pengkajianmenunjukkan bahwa pupuk alternatif NPK Phonska dapat menghasilkan produktivitas jagung 2,43 kali lipat dariproduktivitas petani yakni 5,70 berbanding 2,35 ton/ha dan meningkatkan keuntungan petani sebesar Rp 3.592.500,-dengan penambahan biaya produksi Rp 763.000,-.Kata kunci : pupuk alternatif, jagung, usahatani lahan kering,Kalimantan Tengah
Karakterisasi, Kesesuaian Lahan dan Teknologi Kelapa Sawit Rakyat di Rawa Pasang Surut Kalimantan Tengah Firmansyah, M. Anang
Jurnal Penelitian Pertanian Terapan Vol 14, No 2 (2014)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (204.306 KB) | DOI: 10.25181/jppt.v14i2.147

Abstract

Oil palm extensification in tide land. It’s a marginal land which sensitive to degradation. Otherwise, peat is low bearing capacity, subsidence, drying irreversible and close fire and then emission of green house gas. So other soil in the tide land is acid sulfate soils have a pyrite, while be can oxidation can produce of increased soil acidity and ferro and aluminum. Location of research include ine Ex Rice Mega Project ie. Kapuas Regency and Pulang Pisau Regency, and other is East Kotawaringin Regency. Limiting factor in soil mineral are effective dept of soil and drainage class (S3-d2.s2 dan s2-d2); and then in peatland are soil dept, decomposition factor and drainage class (S3-t2.d2, S3-s2d2 dan S3-d2). Agronomic action used farmer and plantation industry very variance, so characteristic and climate quality, land, agronomic, post harvest wil can level of agronomic compound of oil palm in tide land wich better for produce, efficiency, and green environment. Keywords: Oil palm, tidal swamp, Central Kalimantan