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Sudirman Umar
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Pengaruh Pemupukan N, P, K dan Bahan Organik terhadap Pertumbuhan dan Hasil Kedelai di Lahan Sulfat Masam Bergambut Linda Indrayani; Sudirman Umar
Jurnal Agrista Vol 15, No 3 (2011): Volume 15 Nomor 3 Desember 2011
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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ABSTRAK. Pemanfaatan tanah tanpa memperhatikan daya sanggah tanah dapat menyebabkan penurunan produktivitas dan kerusakan tanah. Penambahan pupuk organik dan anorganik dapat memperbaiki produktivitas tanah dan tanaman. Berkaitan dengan hal tersebut, telah dilakukan penelitian pemupukan an-organik dan pupuk organik dengan tujuan mengevaluasi pengaruh pupuk N, P, K dan bahan organik Beta dan Tithoganic terhadap pertumbuhan tanaman dan hasil kedelai di lahan sulfat masam bergambut. Perlakuan yang dicoba adalah penambahan bahan organik Beta dan Tithoorganic setelah dipupuk dengan N, P, dan K. Percobaan dilaksanakan di lokasi pertain di desa Lamunti, Kabupaten Kapuas, Kalimantan Tengah pada MK 2009 yang menggunakan rancangan acak kelompok dengan 3 ulangan. Peubah yang diamati adalah tinggi tanaman, jumlah cabang, jumlah buku subur, komponen hasil, dan hasil. Hasil penelitian menunjukkan bahwa penambahan pupuk organik dengan perlakuan pemupukan NPK, terjadi peningkatan baik pada pertumbuhan vegetatif dan pertumbuhan generative dilihat dari jumlah buku subur, jumlah polong/tanaman, jumlah biji/tanaman, berat biji/tanaman, dan berat seratus biji serta hasil. Dosis ½ NPK tambah bahan organik Beta meningkatkan jumlah biji per tanaman sebesar 58.10%, dan berat biji/tanaman meningkat 46.32% sedangkan dosis ½ NPK tambah bahan organik Tithoganic meningkatkan jumlah biji/tanaman 59.29% dan berat biji/tanaman 40.33%. Peningkatan hasil dengan dosis ½ NPK + bahan organik Beta sebesar 54.12% dan 58.42% dengan penambahan Tithoganic.Effect of N, P, K and Organic Matter Fertilizer on Growth and Yield of Soybean on Peaty Acid Sulphate LandABSTRACT. The utilization of land without awareness to soil bearing capacity can cause the declination of productivity and land degradation. The application of organic and inorganic fertilizers can improve soil and crop productivity. The object of research was to evaluate the influence of N, P, and K fertilizer and Beta and Tithoganic organic matter on growth and yield of soybean on peaty acid sulphate land. The experiment was conducted on farmer land at Lamunti village, Kapuas, Central Kalimantan in dry season 2009. This experiment was arranged in RCBD design with 3 replications. Observed variables were plant height, number of branches, number of fertile nodules, yield component and yield. The results showed that the application of organic fertilizer with NPK fertilizer treatment increased vegetative and generative growth that could be shown from the number of fertile nodules, number of pods/plant, seed number/plant, seed weight/plant and 100 seed weight and the result. Treatment of an half NPK + Beta organic matter increased the number of seeds/plant as 58.10% and the weight of seed/crops as 46.32% whereas treatment of an half NPK + ½ Tithoganic organic matter increased the number of seeds/plant and weight of seed/crops as 59.29% and 40.33% respectively. The yield showed an increasing rete as 54.12% and 58.42% with an half of NPK + Beta organic matter and application of Tithoganic.
Penggunaan Mesin Fertigasi Tipe APH-03 pada Tanaman Cabai di Lahan Lebak Sudirman Umar; Agung Prabowo
Jurnal Agrista Vol 15, No 2 (2011): Volume 15 Nomor 2 Agustus 2011
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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ABSTRAK. Usahatani hortikultura khususnya sayuran sangat memerlukan kelembaban optimum agar ketersediaan air sesuai kebutuhan sayuran. Dalam budidaya tersebut diperlukan air irigasi untuk mempertahankan lengas tanah juga unsure hara untuk kelangsungan hidup tanaman dan perolehan hasil. Penelitian ini dilaksanakan di Stasiun Percobaan Tanggul (Desa Tawar), Kabupaten Hulu Sungai Selatan Propinsi Kalimantan Selatan pada musim kering 2007. Penelitian ini bertujuan untuk mengetahui akurasi pemupukan dan penggunaan air melalui sistem fertigasi dalam mengembangan tanaman cabai pada lahan kering lebak. Dosis pemupukan ditentukan oleh nilai Konduktivitas Elektrik (KE) dan derajat pH yang dirancang secara otomatis pada setiap fase pertumbuhan tanaman cabai. Penelitian ini menggunakan Rancangan Acak Kelompok dengan perlakuan dosis pemupukan NPK yang diulang sebanyak 3 kali. Peubah yang diamati adalah: keseragaman distribusi tetesan, pertumbuhan tanaman (tinggi, jumlah cabang, dan diameter kelopak) dan hasil. Hasil penelitian menunjukkan bahwa keseragaman distribusi tetesan bernilai 90%. Distribusi jatuh bukaan pada 3 pada 7.08 l h-1 dan Kl 1.19 mS cm-2 menunjukkan pertumbuhan vegetatif dan generative terbaik dengan meningkatkan tinggi 22.17 cm, bobot per tanaman 8.82 kg dan hasil sebesar 7.05 t ha-1.Utilization of Machine Fertigation Type APH-03 for Chili in Fresh Water Swamp LandABSTRACT. Horticulture farming system especially vegetables need optimum soil moisture to full fill its water requirement. Maintaining its water content and nutrient for growing need irrigation system. Application of fertilizer and water in same time that named fertigation system is one of technology that introduced. The research was conducted at experimental station of Tanggul (Tawar village), Hulu Sungai Selatan Regency, South Kalimantan Province at dry season 2007. The object of research was to study the accuracy of fertilizer and water utilization through fertigation system for developing chili crop in dry season at fresh water swamp land. Fertilizer dosage was determine by Electrical Conductivity (EC) value and pH degree and automatically arranged with growing step of chili. Experimental design was randomized complete block design with three replication. The treatment was dosage NPK fertilizer. Parameter that observed was the distribution uniformity (DU), crop growth (height, number of branch and crown diameter) and yield. The result of research showed that distribution uniformity with value 90%. Drop distribution of aperture 3 as 7.08 l h-1 and EC 1.19 mS cm-2 showed better vegetative and generative growth with increase of height 22.17 cm, weight per bed as 8.82 kg and yield as 7.05 t ha-1.
Teknologi Alat dan Mesin Pasca Panen sebagai Komponen Pendukung Usahatani Jagung di Lahan Kering Kalimantan Selatan Sudirman Umar
Jurnal Agrista Vol 15, No 3 (2011): Volume 15 Nomor 3 Desember 2011
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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Abstract

ABSTRAK. Penelitian teknologi alat dan mesin pasca panen telah dilaksanakan untuk menentukan kinerja alat pemipil dan pengering jagung yang akan meningkatkan pendapatan petani. Penelitian ini dilaksanakan sejak April – Mei 2006 di Desa Tajau Pecah dan Bumi Asih, Kecamatan Batu Ampar, Kabupaten Tanah Laut Kalimantan Selatan. Hasil penelitian menunjukkan bahwa keragaman teknis alat pemipil corn-seller cukup baik dilihat dari hasil pengukuran yang diperoleh yakni kadar air biji 22%, biji utuh 93,45%, butir pecah 5,5% dan kotoran 4,5%. Hasil pengukuran kadar air pada 8 bed dryer antara 14.32 – 16.32% dengan kondisi biji baik tertinggi 88,56% dan terendah 80,05%. Penggunaan alat pemipil corn-seller pada tingkat jasa pemipil (upah) Rp. 35/kg didapat dengan biaya pokok alat Rp. 17,38/kg, sedangkan upah pengeringan (bed dryer) adalah Rp. 120/kg, biaya pokok alat yang diperoleh sebesar Rp. 114,15/kg. Titik impas untuk corn-seller 276 ton/tahun dan bed dryer 215,94 ton/tahun, net present value (NPV) corn-seller sebesar Rp. 8.617.843,00. Berdasarkan analisis financial, biaya pokok dan NPV, corn-seller lebih layak dan menguntungkan sedangkan bed dryer belum layak dilihat dari B/C ration 0,95.Technology of Post Harvest Machinery as Supported Component of Maize Farming on Upland in South KalimantanABSTRACT. The machinery post harvest technology research was to examine the performance of corn sheller and bed dryer and those product quality to increase farmer income. The research was conducted in April till May 2006 at Tajau Pecah and Bumi Asih villages, Batu Ampar District, Tanah Laut regency, South Kalimantan. The result showed that at both of villages, farmer carried out their harvesting with : picked up (removed peel)-carried away-sheller-sold (dry weight). This activity had high percentage than if sold in fresh. Maize grain with 22% of water content, produce intact grain 93.45%, broken grain 5.55% and impurity as 4.5%. Measuring of water content as 14.32-16.34% on eight bed dryer indicated good grain condition as 88.56% for the highest and 80.05% for the lowest. The cost of utilizing corn-sheller at sheller leasing was Rp. 35/kg with prime cost as Rp. 114.15/kg. The break even point of corn sheller and bed dryer were 276 t/ha and 215.94 t/ha. The net present value (NPV) of corn sheller was Rp. 8,617,843. According of financial analysis, prime cost and NPV of corn sheller was more feasible and profitable than bed dryer (with B/C ratio 0.95).
Co-Authors Agung Prabowo Linda Indrayani