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Amelioran Organik dan Mikoriza Meningkatkan Status Fosfat Tanah dan Hasil Jagung pada Tanah Andisol Sufardi, Sufardi; Syakur, Syakur; Karnilawati, Karnilawati
Jurnal Agrista Vol 17, No 1 (2013): Volume 17 Nomor 1 April 2013
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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ABSTRAK. Persoalan utama pada Andisol adalah tingginya kapasitas jerapan P tanah, sehingga tidak tersedia bagi tanaman. Penelitian ini bertujuan untuk mengetahui kemampuan amelioran organik dan mikoriza dalam meningkatkan status P tanah dan hasil jagung. Penelitian ini dilaksanakan dengan menggunakan percobaan pot yang ditata menurut rancangan acak kelompok (RAK) faktorial 4 x 2 dengan 3 ulangan. Faktor pertama adalah pemberian amelioran organik yang terdiri atas 4 taraf (jenis) yaitu tanpa amelioran, pupuk kandang, jerami padi dan daun gamal masing-masing sebanyak 20 ton ha-1 atau setara 111 g per polibag. Faktor kedua adalah aplikasi mikoriza dengan 2 taraf yaitu tanpa mikoriza dan pemberian mikoriza sebanyak 10 g per polibag. Hasil penelitian menunjukkan bahwa pemberian amelioran organik dan mikoriza berpengaruh terhadap pH tanah, P total (ekstrak HCl 25 %), P tersedia (Bray 1) dan indek ketersediaan P tanah serta dapat meningkatkan pertumbuhan dan hasil jagung. Kombinasi perlakuan yang memberikan  pengaruh terbaik terhadap status P dan pertumbuhan serta hasil jagung diperoleh pada pemberian pupuk kandang atau daun gamal yang dikombinasi dengan mikoriza. Organic Ameliorant and Mycorrhiza Increase Soil Phosphate Status and Maize Yield on AndisolABSTRACT. A common problem of Andisol soils is the high capacity for P adsorption, although total P content is relatively high. This characteristic causes inefficient use of P fertiliser, to the point that P deficiency can become a major constraint for crop production. This study aimed to determine the effect of organic ameliorants and mycorrhiza on the status of soil phosphate and yield of maize in Andisol.  The experiment was carried out in pots and arranged in a randomized complete block design (RCBD) 4x2 factorial with 3 replications. The first factor is the addition of organic ameliorant consisting of 4 treatments: without ameliorant, manure, rice straw and Gliciridea leaves. The dosage of each ameliorant is 20 ton ha-1 or equivalent to 111 g per polybag. The second factor is the application of mycorrhiza, consisting of 2 levels, no mycorrhiza and mycorrhiza  at 10 g per polybag. The results showed that the application of organic ameliorant and mycorrhiza  affected soil pH, total P (HCl 25% extractable P), available P (Bray 1), and the P availability index and increased the growth and yield of maize in Andisol. The two treatments that provided the most effect on the status of soil phosphate and plant growth and yield of maize were manure, and Glyricidea leaves, in combination with the addition of mycorrhiza.
Sifat Fisika dan Hasil Kedelai (Glycine max L) pada Tanah Terkompaksi Akibat Cacing Tanah dan Bahan Organik Marzuki, Marzuki; Sufardi, Sufardi; Manfarizah, Manfarizah
Jurnal Manajemen Sumberdaya Lahan Vol 1, No 1 (2012): Volume 1, Nomor 1, Juni 2012
Publisher : Program Studi Magister Konservasi Sumberdaya Lahan, Pascasarjana, Universitas Syiah Kuala

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Abstrak. Penelitian ini bertujuan untuk mengkaji perubahan sifat fisika dan kimia tanah, serta pertumbuhan dan hasil kedelai akibat pemberian cacing tanah dan bahan organik berbeda jenis pada tanah terkompaksi. Penelitian menggunakan rancangan acak kelompok yang terdiri  atas 2 faktor  yaitu takaran cacing tanah dan jenis bahan organik. Parameter yang diamati meliputi: (1) sifat fisika Tanah, (2) sifat kimia tanah, (3) pertumbuhan, dan (4) hasil kedelai. Hasil penelitian menunjukkan bahwa Interaksi takaran cacing tanah pada berbagai jenis bahan organik berpengaruh nyata terhadap peningkatan permeabilitas tanah, indeks stabilitas agregat tanah, dan terhadap penurunan berat volume tanah, peningkatan total porositas tanah, dan kadar air tanah pada pF 2,54. Interaksi takaran pemberian cacing tanah pada berbagai jenis bahan organik berpengaruh sangat nyata terhadap peningkatan pH H2O tanah, P-tersedia tanah, dan berpengaruh nyata terhadap peningkatan pH KCl tanah, C-organik tanah, N-total tanah, Ca-dd tanah, dan tidak berpengaruh nyata terhadap peningkatan K-dd tanah, Mg-dd tanah, dan KTK tanah. Nilai terbaik terhadap perubahan sifat fisika dan kimia tanah dijumpai pada takaran pemberian cacing tanah 20 g per plot di jenis bahan organik jerami padi. Interaksi takaran pemberian cacing tanah pada berbagai jenis bahan organik berpengaruh sangat nyata terhadap jumlah polong berisi, berat biji per plot, dan berpengaruh nyata terhadap tinggi tanaman 15 HST, jumlah cabang produktif, jumlah polong hampa, dan berat 100 biji, akan tetapi tidak berpengaruh nyata terhadap tinggi tanaman 30 dan 45 HST. Nilai terbaik berat biji per plot kedelai dijumpai pada takaran cacing tanah 27,65 g per plot pada jenis bahan organik jerami padi.Soil Physical Properties and Yield of Soybean (Glycine max L) in Compacted Soil Due to Provision of Earthworm and Organic MatterAbstract. This study was aimed at assessment of changes in soil chemical and physical properties, as well as growth and yield of soybean due to provision of earthworm and organic matter on compacted soil. The experiment used a randomized complete block design, consisting of two factors, i.e. dosage of earthworm and type of organic matter.  Variables observed included three aspects: (1) Soil physical properties, (2) soil chemical properties, and (3) growth and yield of soybean. The results showed that  interactions between dosage of earthworms and type of organic matter were highly significant on soil permeability, soil aggregate stability index, and only significant on soil volume weight, total soil porosity and soil water content at pF 2.54 , but not significant on soil water content at pF 4.2. Similarly, interactions between dosage of earthworm and type of organic matter were also highly significant on soil pH H2O, P-available, and just significant on soil pH KCl, C organic, total N, Ca-exchangeable, and not significant on K- exchangeable, Mg-exchangeable, and soil CEC.  The best value of changes in soil physical and chemical properties was found at dosage of 20 g earthworm per plot in a type of organic rice straw.  Interactions between dosage of earthworm and type of organic matter were highly significant on number of pods, seed weight per plot, and just significant on plant height 15 day after planting (DAP), number of productive branches, number of empty pods, and 100 seed weight, but not significant on plant height of 30 and 45 DAP.   The best weight of soybean seeds per plot was found at dosage of earthworms 27.65 g per plot and a type of organic rice straw.
Kesuburan Tanah pada Sistem Budidaya Konvensional dan SRI di Kabupaten Aceh Besar Nurhasanah, Nurhasanah; Sufardi, Sufardi; Syakur, Syakur
Jurnal Manajemen Sumberdaya Lahan Vol 1, No 2 (2012): Volume 1, Nomor 2, Desember 2012
Publisher : Program Studi Magister Konservasi Sumberdaya Lahan, Pascasarjana, Universitas Syiah Kuala

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Soil Fertility of Rice Land Management of Conventional Farming and SRI in Aceh Besar.Abstract: The purpose of this study was to assess the characteristics of wetland soil fertility levels in the conventional cultivation system and System of Rice Intensification. This research used descriptive and comparative surveys conducted by soil sampling in the field at two wetland sites under study. The results showed that the characteristics of soil chemical properties such as pH, C-organic, total N, the ratio C/N, available P, P2O5, K2O, Ca-exch, Mg-exch, K-exch, Na-exch, Cation Exchange Capacity and Base Saturation between conventional cultivation and System of Rice Intensification no different that the fertility status did not change significantly (p > 0,05) except Al-exch is experiencing significant changes (p ≤ 0,05). Soil fertility levels in the conventional cultivation system and System of Rice Intensification nonsignificant.Abstrak: Tujuan penelitian adalah untuk mengkaji karakteristik tingkat kesuburan tanah sawah pada sistem budidaya konvensional dan System of Rice Intensification. Penelitian ini menggunakan metode survei dengan pendekatan deskriptif dan komparatif yang dilakukan dengan pengambilan contoh tanah di lapangan pada dua lokasi lahan sawah yang diteliti. Hasil penelitian menunjukkan bahwa karakteristik sifat-sifat kimia tanah seperti pH, C organik, N total, nisbah C/N, P tersedia, P2O5, K2O, Ca dd, Mg dd, K dd, Na dd, KTK dan KB antar budidaya konvensional dan System of Rice Intensification tidak berbeda sehingga status kesuburan juga tidak berbeda secara signifikan (p>0,05) kecuali Al dd yang mengalami perubahan signifikan (p≤0,05), dengan lain perkataan tingkat kesuburan tanah pada sistem budidaya konvensional dan System of Rice Intensification secara keseluruhan tergolong sama.
Serapan Hara dan Efisiensi Pemupukan Phosfat Serta Pertumbuhan Padi Varietas Lokal Bustami, Bustami; Sufardi, Sufardi; Bakhtiar, Bakhtiar
Jurnal Manajemen Sumberdaya Lahan Vol 1, No 2 (2012): Volume 1, Nomor 2, Desember 2012
Publisher : Program Studi Magister Konservasi Sumberdaya Lahan, Pascasarjana, Universitas Syiah Kuala

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Nutrient Uptake and Efficiency Fertilizing to Growth Variety Local of RiceAbstract: The study was aimed to determine effects of phosphate fertilizer dosage and varieties on growth, nutrient uptake and fertilizing efficiency of landrace paddy. The research was conducted in Village Aneuk Glee, Indrapuri Sub District, Aceh Besar District. Analysis of phosphorus uptake of rice plants was performed at Laboratory of Soil Research Institute, Bogor. Experiment was arranged in a split plot design with three replications. Factor of phosphorus fertilizer dosage, consisting of three levels (0 kg/ha, 50 kg/ha and 100 kg/ha) was set as main plot and variety (50 varieties) as subplot. Variables observed were plant height, number of tillers, wet weight biomass, dry weight biomass and fertilizing efficiency. Results showed that phosphorus fertilizer dosage exerted highly significant effects on plant height, number of tillers at 20, 23 and 26 days after transplanting, dry weight biomass, nutrient uptake and fertilizing efficiency and exerted significant effects on number of tillers at 14 days after transplanting and wet weight biomass. Variety exerted highly significant effects on plant height, number of tillers, wet weight biomass and dry weight biomass. There were no significant interactions between phosphorus fertilizer dosage and variety on all the observed variables.Abstrak: Penelitian ini dilaksanakan untuk mengetahui pengaruh dosis pupuk fosfat dan varietas terhadap pertumbuhan, serapan hara dan efisiensi pemupukan tanaman padi lokal. Pelaksanaan penelitian lapangan dilakukan di Desa Aneuk Glee Kecamatan Indrapuri Kabupaten Aceh Besar dan analisis serapan fosfor tanaman dilaksanakan di Laboratorium Balai Penelitian Tanah, Bogor. Menggunakan rancangan percobaan petak terpisah (split plot design) dengan tiga ulangan. Perlakuan terdiri atas dosis pemupukan phosfat sebagai petak utama dan varietas (50 varietas) sebagai anak petak. Pengamatan dilakukan terhadap tinggi tanaman, jumlah anakan, serapan hara dan efisiensi pemupukan. Hasil penelitian menunjukkan dosis pupuk fosfat berpengaruh sangat nyata terhadap tinggi tanaman pada semua umur pengamatan, jumlah anakan umur 20, 23 dan 26 hari setelah tanam (HST), berat berangkasan kering, serapan hara dan efisiensi pemupukan serta berpengaruh nyata terhadap jumlah anakan umur 14 HST dan berat berangkasan basah. Varietas berpengaruh sangat nyata terhadap tinggi tanaman, jumlah anakan, berat berangkasan basah, dan berat berangkasan kering. Tidak terdapat interaksi yang nyata antara dosis pupuk fosfat dan varietas terhadap semua peubah yang diamati.
Pengaruh Residu Biochar dan Pemupukan NPK terhadap Dinamika Nitrogen, Sifat Kimia Tanah dan Hasil Tanaman Padi (Oryza sativa L.) Musim Tanam Ketiga Mawardiana, Mawardiana; Sufardi, Sufardi; Husen, Edi
Jurnal Manajemen Sumberdaya Lahan Vol 2, No 3 (2013): Volume 2, Nomor 3, Juni 2013
Publisher : Program Studi Magister Konservasi Sumberdaya Lahan, Pascasarjana, Universitas Syiah Kuala

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Residual Effect of Biochar and NPK Fertilization Toward the Dynamics of Nitrogen , Soil Chemical Properties and Rice Crop in Third Season PlantingAbstract. The study includes the effect of biochar on crop residue rice has not been much done. This study aimed to determine the effect of biochar residue and NPK fertilization on nitrogen dynamics, soil chemical properties and yield of rice (Oryzasativa L.) growing season III. Experiments in stacking the group Random Design (RAK) factorial with two factors (residual biochar and fertilizer NPK) and 4 ulanga.Biochar residue consists of 2 level ie treatment without residual biochar and biochar residue treatment 10 tons ha -1.NPK fertilizer treatment consisted of 3 level that is without fertilizer NPK, NPK fertilizer 135 kg ha -1 and 270 kg NPK ha -1.The results showed that the residual biochar significantly affect N-Total soil 28 days after transplanting (DAP), N-Total plant 21 days after planting, cation exchange capacity (CEC), total grain number and yield per hectare.NPK fertilization significantly affect total plant N-45 DAP, available P-, k-available, CEC, plant height 45 DAP, 90 DAP, tiller number 28, 35 and 45 days after planting, the number of panicles / clump, the percentage of empty grain / panicle, percentage of grain containing / panicle and yield per hectare. Combination treatment residues and NPK Biochar significant effect on total plant N-45 DAP.Abstrak. Penelitian pengaruh biochar termasuk residunya pada tanaman padi sawah belum banyak dilakukan. Penelitian ini bertujuan untuk mengetahui pengaruh residu biochar dan pemupukan NPK terhadap dinamika nitrogen, sifat kimia tanah dan hasil tanaman padi (Oryza sativa L.) musim tanam III. Percobaan disusun dalam Rancangan Acak kelompok ( RAK) pola faktorial dengan dua faktor (residu biochar dan pupuk NPK) dan 4 ulangan. Residu biochar terdiri dari 2 taraf yaitu perlakuan tanpa residu biochar dan perlakuan residu biochar 10 ton ha-1. Perlakuan pupuk NPK terdiri dari 3 taraf yaitu tanpa pupuk NPK, pupuk NPK 135 kg ha-1, dan pupuk NPK 270 kg ha-1. Hasil penelitian menunjukkan bahwa residu biochar berpengaruh nyata terhadap N-Total tanah 28 hari setelah tanam (HST), N- Total tanaman 21 HST, kapasitas tukar kation (KTK), jumlah gabah total dan hasil per hektar. Pemupukan NPK berpengaruh nyata terhadap N-Total tanaman 45 HST, P-tersedia, k-tersedia, KTK, tinggi tanaman 45 HST, 90 HST, jumlah anakan 28, 35 dan 45 HST, jumlah malai/rumpun, persentase gabah hampa/malai, persentase gabah berisi/malai dan hasil per hektar. Kombinasi perlakuan residu biochar dan pupuk NPK berpengaruh nyata terhadap N-total tanaman 45 HST.
Phosfat Tersedia, Serapannya Serta Pertumbuhan Jagung (Zea mays L.) Akibat Amelioran dan Mikoriza pada Andisol Karnilawati, Karnilawati; Sufardi, Sufardi; Syakur, Syakur
Jurnal Manajemen Sumberdaya Lahan Vol 2, No 3 (2013): Volume 2, Nomor 3, Juni 2013
Publisher : Program Studi Magister Konservasi Sumberdaya Lahan, Pascasarjana, Universitas Syiah Kuala

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Effects of Ameliorant and Mycorrhiza on Soil Phosphate Availability, Phosphorus Uptake, Growth, and yield of Corn (Zea mays L.) in Andisol.Abstract. Andisol is soil with a very high P adsorption, whereas available P is very low. As low P availability, P becomes limiting to plant growth. This study was aimed at determining the effect of ameliorant and mycorrhiza application on availability of phosphate and growth and phosphorus uptake of corn in Andisol. Soil samples of Andisol were taken from Tunyang Village, Timang Gajah Sub District at 0-20 cm depth of typic hapludand. The experiment was carried out in pots and arranged in a randomized complete block design (RCBD) 4x2 factorial with 3 replications. The first factor was types of ameliorant, consisting of 4 levels, i.e. without ameliorant, manure, rice straw and Gliciridia leaves, each 20 t ha-1 or equivalent to 111 g per polybag. The second factor was mycorrhiza with 2 levels, i.e. without mycorrhiza and mycorrhiza 10 g per polybag. Results showed that various types of ameliorants affected soil pH, total P, available P (Bray 1), and index of soil P availability and improved growth, phosphorus uptake, and yield of corn. Mycorrhiza affected soil pH, plant height at 15 and 30 days after planting and mycorrhizal root infection, but did not affect soil P availability and yield of corn. There was no interaction between ameliorant and mycorrhiza. Types of ameliorant providing the best P availability and yield of corn were manure and Gliciridia leaves at dose of 20 t ha-1.Abstrak. Andisol merupakan tanah yang mempunyai jerapan P yang sangat tinggi sedangkan P tersedia sangat rendah. Ketersediaan P relatif rendah, P menjadi pembatas bagi pertumbuhan tanaman. Penelitian ini bertujuan untuk mengetahui pengaruh amelioran dan mikoriza terhadap ketersediaan fosfat dan pertumbuhan serta serapan fosfor tanaman jagung (Zea mays L.) pada Andisol. Sampel tanah ordo Andisol dari Desa Tunyang Kecamatan Timang Gajah Kabupaten Bener Meriah pada kedalaman 0 – 20 cm dari jenis typic hapludand. Penelitian ini dilaksanakan dengan menggunakan percobaan pot yang ditata menurut rancangan acak kelompok (RAK) faktorial 4x2 dengan 3 ulangan. Faktor pertama adalah jenis amelioran yang terdiri atas 4 taraf (jenis) yaitu tanpa amelioran, pemberian pupuk kandang, jerami padi dan daun gamal masing-masing sebanyak 20 ton ha-1 atau setara 111 g per polibag. Faktor kedua adalah aplikasi mikoriza dengan 2 taraf yaitu tanpa mikoriza dan pemberian mikoriza sebanyak 10 g per polibag. Hasil penelitian menunjukkan bahwa pemberian amelioran dari berbagai jenis berpengaruh terhadap pH tanah, P total, P tersedia (Bray 1) dan indek ketersediaan P tanah serta dapat meningkatkan pertumbuhan, serapan fosfor dan hasil tanaman jagung. Pemberian mikoriza berpengaruh terhadap pH tanah, tinggi tanaman 15, 30 HST dan infeksi akar bermikoriza, tetapi tidak berpengaruh terhadap ketesediaan P tanah dan hasil jagung. Tidak ada interaksi antara faktor jenis amelioran dengan faktor pemberian mikoriza. Jenis amelioran yang memberikan pengaruh terbaik terhadap ketersediaan P dan hasil jagung diperoleh pada pemberian pupuk kandang dan daun gamal dengan dosis 20 t ha-1. 
Evaluasi Status Hara dan Rekomendasi Pemupukan Spesifik Lokasi untuk Padi Sawah di Kecamatan Pidie Kabupaten Pidie M, Khairunnisa; Khairullah, Khairullah; Sufardi, Sufardi
Jurnal Ilmiah Mahasiswa Pertanian Vol 2, No 3 (2017): Agustus 2017
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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Abstrak.  Penelitian ini bertujuan untuk mengevaluasi status hara dan penetapan rekomendasi pemupukan spesifik lokasi pada tanah sawah untuk budidaya padi di Kecamatan Pidie Kabupaten Pidie. Penelitian menggunakan metode deskripsi berdasarkan pengamatan lapangan dan analisis laboratorium. Untuk pengambilan sampel tanah sebaran dilakukan pada 8 titik pengamatan sedangkan untuk pembukaan profil dilakukan di dua tempat dengan pengambilan sampel top soil dan  sub soil dengan jenis tanah Aluvial. Hasil penelitian karakteristik tanah sawah di Kecamatan Pidie Kabupaten Pidie sangat beragam.  Hasil penelitian N-total tergolong rendah sampai sedang yaitu berkisar (0,05 % - 0,34% ) dengan rekomendasi yaitu 111,11 sampai 151,1kg/ha Urea. P tersedia tergolong rendah sampai tinggi  berkisar (7,60 - 13,50 mg kg-1)dengan rekomendasi 28,75 sampai 148,08 kg/ha SP36. Namun untuk kandungan K-dd dalam tanah rata-rata tinggi sampai sangat tinggi. Namun, kandungan Fe extrak 1N NH4COOCH3 pH4,8 berkriteria sangat rendah yaitu Gampong Seukee 0,165 mg/kg dan Gampong Labui 0,144 mg/kg. Dari hasil penelitian maka pupuk yang perlu diberikan yaitu N, P dan Fe sedangkan K tidak perlu dilakukan pemupukan disebabkan kandungan K dalam tanah tinggi.The Evaluation of Nutrient Status and Fertilizer Recommendation at Specific Site for Paddy Fields in Pidie Sub district, Pidie RegencyAbstract. This study aims to evaluate nutrient status and the determination of fertilizer recommendations at specific site on paddy fields for rice cultivation in Pidie Sub district, Pidie Regency. The study used descriptive method based on field observation and laboratory analysis. The soil distribution sampling is observed at 8 points while the profile opening is done in two places for top soil and sub soil sampling with alluvial soil. The result of paddy field characteristic research in Pidie Sub district, Pidie Regency is very diverse. The result of Nitrogen-total research is low to moderate ranged (0,05% - 0,34%) with recommendation that is 111,11 to 151,1kg/ha Urea. Phosphor is available in low to high ranges (7.60 - 13.50 mg kg-1) with a recommendation of 28.75 to 148.08 kg/ha SP36. But for the Potassium that can be exchanged in the soil is average high up to very high. However, the content of Fe extract 1N NH4COOCH3 pH4.8 characterized very low is in Gampong Seukee which is 0,165 mg/kg and Gampong Labui which is 0,144 mg/kg. Based on the results of the study, the fertilizers that need to be given are Nitrogen, Phosphor and Fe while Potassium does not need to be fertilized because its content in the soil is high. 
Penggunaan guano dan pupuk NPK Mutiara untuk memperbaiki kualitas media subsoil dan pertumbuhan bibit kelapa sawit (Elaeis guineensis Jacq.) Mukhtaruddin, Mukhtaruddin; Sufardi, Sufardi; Anhar, Ashabul
Jurnal Floratek Vol 10, No 2 (2015): Oktober 2015
Publisher : Universitas Syiah Kuala

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Use of Guano and Fertilizer NPK to Improve Quality of Subsoil Media and Growth of Oil Palm SeedlingABSTRACT. Utilization of subsoil as a growing medium for the nursery is a challenge to replace the role of topsoil as media for oil palm nurseries mainly on main nursery. This research was aimed at studying the effects of organic Guano and inorganic NPK fertilizer on oil palm seedling growth on sub soil growing media. The experiment was conducted in a pot, arranged in a randomized complete block design (RCBD), factorial 4x3 with 3 replicates. There were two factors examined, 1) guano dose consisting of four levels, namely: 0 kg, 0.5 kg, 1.0 kg and 1.5 kg/polybags and 2) inorganic fertilizers NPK consisting of three levels, namely: 0, 15, and 30 g/polybags. The results showed that subsoil can be used for growing media with applications of fertilizer Guano and inorganic NPK fertilizer. Guano and NPK fertilizer affected several soil chemical properties, i.e. increase in soil pH, available total C and N and P, and cation exchange capacity (CEC) and affected growth of oil palm seedling at age 16 weeks after planting. The best combination for the best seedling growth was obtained at 1.5 kg Guano + 30 kg NPK
APLIKASI MIKORIZA UNTUK MENINGKATKAN PERTUMBUHAN BEBERAPA JENIS RUMPUT MAKANAN TERNAK TERHADAP CEKAMAN KEKERINGAN PADA TANAH PODSOLIK JANTHO Elviwirda, Elviwirda; Sufardi, Sufardi; Syakur, Syakur
Jurnal Floratek Vol 11, No 2 (2016): Oktober 2016
Publisher : Universitas Syiah Kuala

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Problems that arise in forage supply are continuity of farm and it’s low productivity and limited soil water availability in dry season. This study aims to: 1) examine the role of AMF on the growth of some types of grass fodder by different levels of water stress on podzolic soil; and 2) understand the interaction between application of AMF in different water stress and the types of grass on growth of forage grasses. This research was conducted in plastic house of Field Laboratory of Assessment Institute for Agricultural Technology (BPTP) Aceh. Randomized block design (RAK) with 6 x 3 factorial for three replications was used. The first factor was application the AMF and water stress which consists of six levels, namely: C1 = Without AMF + water stress 60% of field capacity, C2 = Without AMF + water stress 80% of field capacity, C3 = Without AMF + without water stress (100 % of field capacity), C4 = AMF + water stress 60% of field capacity, C5 = AMF + water stress 80% of field capacity, C6 = AMF + without water stress (100% field capacity). The second factor was type of grass that consists of three levels, namely: R1 = Brachiaria decumbens, R2 = Brachiaria mutica, R3 = Cynodon plectostachyus. The parameters observed in this research were canopy fresh weight, root dry weight, leaf relative water content. Results showed AMF addition of water stress 60% of field capacity on Jantho podzolic soil increased the canopy fresh weight, root dry weight, and leaf relative water content. There were interaction effects between applications AMF at different water stresses and the types of grass against canopy fresh weight, root dry weight and leaf relative water content. 
Pengaruh Pemupukan Phosfat dan Sulfur Terhadap Pertumbuhan dan Serapan Hara Serta Efisiensi Hasil Padi Sawah (Oryza sativa l.) Mashtura, Syarifah Putri; Sufardi, Sufardi; Syakur, Syakur
Jurnal Manajemen Sumberdaya Lahan Vol 2, No 3 (2013): Volume 2, Nomor 3, Juni 2013
Publisher : Program Studi Magister Konservasi Sumberdaya Lahan, Pascasarjana, Universitas Syiah Kuala

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Abstract

The Influence of Phosphat and Sulfur Fertilization on Growth and Nutrient Absorption and Rice Field Yield Efficiency of Paddy (Oryza sativa L.)Abstract. This research was conducted in the Uleepulo Village, Dewantara Sub District, Aceh Utara District. This study was aimed to investigate effects of phosphorus and sulfur fertilizers and their interactions on nutrient uptake and growth and yield efficiency of paddy. Experiment was arranged in a factorial randomized complete block design 4 x 4 with 3 replications. Phosphorus fertilization consisted of 4 levels: 0, 50, 100, 150 kg ha-1. Sulfur fertilization consisted of 4 levels: 0, 40, 80, 120 kg ha-1. The results showed that phosphorus and sulfur fertilizers significantly affected paddy height at 30 and 45 day after planting, tiller numbers and productive tiller numbers. Phosphorus and sulfur fertilizers significant affected panicle length and grain numbers per panicle. Phosphorus and sulfur fertilizers did not significantly affect the number of empty grains, 1000 grain weight and yield. Phosphorus fertilizer did not significantly affect phosphorus uptake and also sulfur fertilizer did not affect sulfur uptake. However, there was an interaction between phosphorus and sulfur fertilization on phosphorus uptake. Sulfur fertilizer significantly affected phosphorus uptake. There was no interaction between phosphorus and sulfur fertilization on sulfur uptake. Phosphorus fertilization significantly affected yield efficiency, while sulfur fertilization did not significantly affect the yield efficiency. Additionally, there was no significant interaction between phosphorus and sulfur fertilization on yield efficiency of paddy.Abstrak. Penelitian ini dilaksanakan di Desa Uleepulo, Kecamatan Dewantara, Kabupaten Aceh Utara. Penelitian ini bertujuan untuk mengetahui pengaruh pemupukan Phosfat, sulfur dan interaksinya terhadap pertumbuhan, serapan hara serta efisiensi hasil padi sawah. Penelitian dilakukan dengan menggunakan rancangan acak kelompok (RAK) pola faktorial 4 x 4 dengan 3 kali ulangan. Pemupukan Phosfat terdiri atas 4 taraf yaitu: 0, 50, 100, dan 150 kg P2O5 ha-1, pemupukan sulfur terdiri atas 4 taraf yaitu 0, 40, 80 dan 120 kg S ha-1. Hasil penelitian menunjukkan bahwa pemupukan Phosfat dan sulfur berpengaruh nyata terhadap tinggi tanaman pada umur 30 dan 45 HST, jumlah anakan dan jumlah anakan produktif, panjang malai dan jumlah gabah per malai. Pemupukan Phosfat dan sulfur tidak berpengaruh nyata terhadap jumlah gabah hampa, bobot 1000 butir dan produksi tanaman padi. Pemupukan Phosfat tidak berpengaruh nyata terhadap serapan hara Phosfat tanaman padi, sedangkan pemupukan sulfur berpengaruh tidak nyata, tetapi berinteraksi nyata antara pemupukan Phosfat dan sulfur terhadap serapan hara Phosfat. Pemupukan sulfur berpengaruh nyata terhadap serapan hara Phosfat dan sulfur tetapi tidak terdapat interaksi antara pengaruh serapan hara Phosfat dan sulfur tanaman padi. Pemupukan Phosfat berpengaruh nyata terhadap efisiensi hasil, sedangkan pemupukan sulfur berpengaruh tidak nyata, tetapi tidak berinteraksi nyata terhadap efisiensi hasil tanaman padi.