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PENGAYAAN KOMPOS JERAMI PADI DENGAN BUBUK BATU SEBAGAI SUMBER HARA UNTUK TANAMAN SAWI (Brassica juncea L.) PADA PERTANIAN ORGANIK Tarigan, Santaliana Br; Sitorus, Bintang; Hanum, Hamidah
AGROEKOTEKNOLOGI Vol 1, No 1 (2012)
Publisher : Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan

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ABSTRACT Enrichment of rice straw with rock powder as biofertilizer to supply nutrient for a vegetable (Brassica juncea L) to organic agricultural. The aim of this research is to determine the potention enrichment of rice straw with rock powder as biofertilizer to supply N,P,K nutrient for a vegetable (Brassica juncea L) to organic agricultural. This study used a Randomized Blok Design with ten treatments and three replications. The treatment consists of OO (control), KJ (aplication of compost without enrichment), KD (aplication of compost enrichment by 175 g dolomite), KP (aplication of compost enrichment by 175 phosphate ), KZ (aplication of compost enrichment by 175 g zeolite), KS (aplication of compost enrichment by 175 g river’s rock), KD1 (aplication of compost enrichment by 350 g dolomite), KP1 (aplication of compost enrichment by 350 g phosphate), KZ1 (aplication of compost enrichment by 350 g zeolite), KS1  (aplication of compost enrichment by 350 g river’s rock). The results showed that administration of rice straw compost which increase with rock powder after incubation significantly increased pH of  soil, N soil, and K- exchange at treatment of compost that increase with dolomite docage 350 g and P-available at treatment of compost that increase with fosfate docage 350 g. Compost of straw rice which increace with rock powder significantly increased of vegetable growth at treatment of compost that increase with fosfate docage 350 g. Keywords : compost of straw rice, rock powder, vegetable (Brassica juncea L) ABSTRAK Pengayaan kompos jerami padi dengan bubuk batu sebagai sumber hara untuk tanaman sawi (Brassica juncea L.) pada pertanian organik. Penelitian ini bertujuan untuk mengetahui potensi kompos jerami padi yang diperkaya dengan tepung batu sebagai pupuk alami dalam menyediakan hara N, P, K untuk tanaman sawi (Brassica juncea L.) pada pertanian organik. Penelitian ini menggunakan Rancangan Acak  Lengkap dimana perlakuan terdiri atas OO (Kontrol), KJ (50 g aplikasi kompos tanpa diperkaya), KD (aplikasi kompos diperkaya 175 g dolomit), KP (aplikasi kompos diperkaya 175 fosfat ), KZ (aplikasi kompos diperkaya 175 g zeolit), KS (aplikasi kompos diperkaya 175 g batu sungai), KD1 (aplikasi kompos diperkaya 350 g dolomit), KP1 (aplikasi kompos diperkaya 350 g fosfat), KZ1 (aplikasi kompos diperkaya 350 g zeolit), KS1  (aplikasi kompos diperkaya 350 g batu sungai). Hasil penelitian menunjukkan bahwa pemberian kompos jerami padi yang diperkaya tepung batu setelah inkubasi nyata meningkatkan pH tanah, N-total, K-tersedia pada perlakuan aplikasi kompos diperkaya dolomit dosis 350 g dan P-tersedia pada perlakuan kompos diperkaya fosfat dosis 350 g. Pemberian kompos jerami padi yang diperkaya tepung batu nyata dalam meningkatkan pertumbuhan tanaman sawi pada perlakuan kompos diperkaya fosfat dosis 350 g. Kata kunci: kompos jerami padi, tepung batu, sawi (Brassica juncea L).
PERAN BEBERAPA BAHAN SILIKAT (Si) DAN PUPUK FOSFAT (P) DALAM MEMPERBAIKI SIFAT KIMIA TANAH ANDISOL DAN PERTUMBUHAN TANAMAN Chairunnisa, Cici; Hanum, Hamidah; Mukhlis, Mukhlis
AGROEKOTEKNOLOGI Vol 1, No 3 (2013)
Publisher : Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan

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The objective of this research was study the role of silicate material and phosphat fertilizer inimproving soil chemical charachteristics and plant growth. Andisols material was taken fromagriculture area with horticulture commodity in Kuta Rakyat Village, Naman Teran Subdistrict,Karo Regency. This research used factorial blocky randomized design with 3 block and 2 factors.The silicate material were consisted of four kind are : B0 (control), B1 (Agrosil), B2 (coarse grass),B3 (straw rice). The treatment of phosphate fertilizer consisted of four levels, namely : F0 (0 ppm P),F1 (100 ppm P), F2 (200 ppm P), and F3 (300 ppm P). Silicate material was incubated for 45 daysand then applied P fertilizer. The plant kept until vegatative phase in green house. The result of thisresearch showed that the affect of material silicate of coarse grass was very good in increasing Puptake,diameter of stem, dry weight root,dry weight crown, and height plant. And then straw rice isvery good in decrease P retention and Agrosil is very good in increase SiO2 available. The effect ofP fertilizer is not significant while the effect of interaction of silicate material and P fertilizer onlysignificant in hight plant.Keywords : Andisols, silicate material, and phosphate
PEMBERIAN BAHAN SILIKA PADA TANAH SAWAH BERKADAR P TOTAL TINGGI UNTUK MEMPERBAIKI KETERSEDIAAN P DAN Si TANAH, PERTUMBUHAN DAN PRODUKSI PADI (Oryza sativa L.) Yohana, Orinda; Hanum, Hamidah; Supriadi, Supriadi
AGROEKOTEKNOLOGI Vol 1, No 4 (2013)
Publisher : Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan

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This study aims to know the effect of Si on the availability of soil phosphate and silica, rice growthand production in the paddys soil with high total P . The research was conducted on the greenhouseand on the laboratory soil chemistry, Faculty of Agriculture, University of North Sumatra, Medan.The soil which used from the paddys soil in Tanjung Mulia Hilir, Medan Deli which has the hightotal P. The experiment was carried out using non-factorial randomized block design with treatmentcontrol, 3.4 g silica agrosil fertilizer/ plant, 4.8 g silica agrosil fertilizer/ plant, husk ash 3.4 g/ plantand 4.8 g husk ash / plant. The Analysis of data used the analysis of variance and contrast test.Experimental results showed that silica materials has significant effect on soil pH, maximum tillernumber and dry weight of grain, but not significant effect on available P, available Si, P – uptake, Si– Uptake, Plant Height, and Plant Dry Weight. Husk ask and Agrosil silica showed the same effectin the soil chemistry nature that’s the soil phosphate and silica availability.Keyword : silica material, paddy Soil, P, Si – uptake, rice growth and production
PENGARUH PEMBERIAN KOMPOS JERAMI DAN PUPUK SP-36 PADA TANAH SULFAT MASAM POTENSIAL TERHADAP PERUBAHAN SIFAT KIMIA SERTA PERTUMBUHAN DAN PRODUKSI PADI (Oriza sativa L.) Bhakari, Herlina Eka; Fauzi, Fauzi; Hanum, Hamidah
AGROEKOTEKNOLOGI Vol 2, No 1 (2013)
Publisher : Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan

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ABSTRACTThe objective of this research was to study the effect of rice straw compost and the application ofphosphorus fertilizer of SP-36 on chemical characteristic of acid sulphate soils, rice growth andproduction (Oryza sativa L). This research was conducted in greenhouse agricultural departments,Universities Northen Sumatera, Medan. This study used a randomized block design factorial, with2 factors : factor 1 : rice straw compost treatment (J) wich consist of : J0 = 0 ton ha-1(0 g straw/pot); J1 = 10 ton ha-1 (40 g straw/pot); J2 = 20 ton ha-1 (80 g straw /pot); J3 = 30 ton ha-1(120 g straw/pot). Faktor 2 : fertilizer phosphorus (P) which consist of : P0 = 0 kg SP-36 ha-1(0 g SP-36/pot); P1 = 0.5 dose (0.5 x 135 kg/ha), advice equal with 0,27 g SP-36/pot;P2 = 1,0 dose (1 x 135 kg/ha), advice equal with 0,54 g SP-36/pot; P3 = 1.5 dose (1.5 x 135 kg/ha),advice equal with 0,81 g SP-36/pot. This results of the research showed that rice straw composttreatment significantly affected C-organic, Fe2+ reduction, the maximum seedlings, dry weight ofroot. While the application of SP-36 fertilizer significantly affected the maximum seedlings.Combination of rice straw compost and fertilizer SP-36 significantly increased the maximumseedlings.Key words: acidic sulphate soil, straw compost, SP-36, rice
PEMBERIAN ZEOLIT DAN PUPUK KALIUM UNTUK MENINGKATKAN KETERSEDIAAN HARA K DAN PERTUMBUHAN KEDELAI DI ENTISOL Lumban Gaol, Surya Karto; Hanum, Hamidah; Sitanggang, Gantar
AGROEKOTEKNOLOGI Vol 2, No 3 (2014)
Publisher : Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan

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The Application of Zeolite and Potassium Fertilizer to Increase The Avaibility of PotassiumNutrient and Soy Growth in Entisols. Suvervised by Hamidah Hanum and Gantar Sitanggang.Theobjective of this research were: 1) determined of zeolite dosage that improved the soil chemistryproperties, 2) determinated zeolite and potassium fertilizer dosage that effected the avaibility ofpotassium and the soy growth in Entisols. The research consisted of two experiment, the first onewas the experiment of zeolite incubation, and second one was the experiment of zeolit andpotasium fertilizer. The design experiment of the first research was completely randomized designand the second one was block randomized design- factorial. The result showed that in the firstexperiment, zeolite wich incubation until 7.5 ton/hectare incerease CEC significanly, but didn’teffect the soil pH and K-exchangable. Besed the second experiment, it was know that theinteraction effect of zeolit and potasium fertilizer aplication increased potassium nutrient the plant,which the best treatment was zeolite aplication 5 ton/ hectare and potasium fertilizer 150 kg/hectare.Key words: : Entisols, Zeolite, KCl, soy growth
DINAMIKA N-NH4 DAN N-NO3 AKIBAT PEMBERIAN PUPUK UREA DAN KAPUR CaCO3 PADA TANAH INCEPTISOL KWALA BEKALA DAN KAITANNYA TERHADAP PERTUMBUHAN TANAMAN JAGUNG Damanik, Abdul Rasyid B; Hanum, Hamidah; Sarifuddin, Sarifuddin
AGROEKOTEKNOLOGI Vol 2, No 3 (2014)
Publisher : Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan

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The objective of this research were to determine the effect of urea fertilizer and lime-CaCO3applications and its interaction on the dynamics of N-NH4 and N-NO3 and changes in soil pH andgrowth of maize in Inceptisols taken from Kwala Bekala. This research was conducted in thegreenhouse, Chemistry and Soil Fertility Laboratory, at the Faculty of Agriculture, University ofNorth Sumatra, Medan. This study used a randomized block design (RBD) factorial consisting oftwo factors. The first factor was urea (U) which was composed of doses 0, 75, 150 and 225 kg N/haand the second factor was lime-CaCO3 (K) which was composed of doses 0, 2.032, 4.064, 6.096tons CaCO3/ha. The results showed that the application of urea fertilizer, lime-CaCO3 andinteractions increased N-NH4 in the first week and then decreased until the sixth week andincreased the N-NO3 until the fifth week and raised the soil pH in the first and second week thendecreased until the sixth week. The applications of doses urea fertilizer decreased plant height, stemdiameter, shoot dry weight and root dry weight. The application of lime-CaCO3 decreased thegrowth of the maize except the concentration of plant nitrogen. The interaction of urea fertilizer andlime-CaCO3 decreased stem diameter and shoot dry weight.Keywords : Inceptisols, Urea Fertilizer, Lime CaCO3, N-NH4 and N-NO3
Perubahan Sifat Kimia Inceptisol Melalui Aplikasi Bahan Humat Ekstrak Gambut Dengan Inkubasi Dua Minggu Swanda, Jeni; Hanum, Hamidah; Marpaung, Purba
AGROEKOTEKNOLOGI Vol 3, No 1 (2015)
Publisher : Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan

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The objective of this research was study of several dosages humic material from extract peat inimproving Inceptisol soil chemical characteristics .The soil sample using Inceptisol and humicmaterial from extract peat. It is conducted in Faculty of Agriculture greenhouses, University ofNorth Sumatra, using non-factorial randomized block design,the treatment of humic materialconsisted of 6 levels and 3 replications so there are 18 experimental units, namely : The treatment 0,200, 400, 600, 800 and 1000 ppm humic material. The measured parameters were pH (H2O), Corganic,P-available,Al-exchange, cation exchange capacity (CEC) and Al saturation. The result ofthis research showed that humic material application significantly affected in increasing pH and Corganik,but not significant effect on P-available,Al-exchange, CEC and Al saturation. The value ofsoil pH increasing from very acid to acid on dosages humic material 400 until 1000 ppm and thehighest increase of soil pH is 4.74 on dosages 1000 ppm. Humic material couldn’t improve otherssoil chemical characteristics. The value of P-available, C-organic, Al saturation is very low, andCEC is low.Key words: Inceptisols, humic material, pH, C-organik, P-avalaible,CEC and Al-exchange
The Increasing of N, P, and K Nutrient in Palm Oil Under Prenursery Seedling By Application of Palm Oil Waste Compost and Endofitic Microbes Hanum, Hamidah; Lisnawati, Lisnawati; Tantawi, Ahmad Rafiqi
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 5, No 2 (2015): Life Sciences
Publisher : Syiah Kuala University

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Improvement of palm oil   nutrient  status  since at the nursery is one of the efforts to improve plant resistance to Ganoderma attacks. Compost from palm oil waste and potentially endophytic microbes could  potentially  increase  plant  nutrients,  especially  N,  P  and  K.  This  study  aims  to  determine  the potential of oil palm waste compost and endophytic microbes in increasing N, P and K in the plant oil palm under  prenursery seedling. The study was conducted in a factorial experiment with the factors tested  were  types  of  compost,  type  and  time  of  endophytic  microbial  inoculation.  Research  results indicating  that  the  levels  of  N,  P  and  K  plants  are  not  affected  by  the  main  factors  and  factor interactions of three factors. The concentration of of N, P, K soil is influenced by the interaction effect of two factors. The empty fruit bunch compost enriched every type endophyte showed better effects than  compost  midrib  in  increasing  levels  of  P  and  K  nutrient  in    plants  and  plant  growth  The application  endofitic  microbe    after  and  before  Ganoderma  application      inreased    phosphor  and potassium in plant and growth plant.
UJI TOLERANSI BEBERAPA VARIETAS PADI ( Oryza sativa L. ) TERHADAP NAUNGAN Alridiwirsah, Alridiwirsah; Hanum, Hamidah; M.H, Erwin; Y, Muchtar
Pertanian Tropik Vol 2, No 2 (2015)
Publisher : Pasca Sarjana FP USU

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Penelitian ini bertujuan untuk mengetahui uji toleransi beberapa varietas padi (Oriza sativa L) terhadap variasi intensitas penyinaran. Penelitian ini dilaksanakan bulan November 2014 sampai dengan bulan Februari 2015. diKebun Percobaan Pasar Miring, Balai Pengkajian Teknologi Pertanian (BPTP) Sumatera Utara. Jl. Raya-Galang Km 8,2 Lubuk Pakam, Kec. Pagar Merbau, Kab. Deli Serdang, Sumatera Utara. Rancangan yang digunakan dalam penelitian adalah Rancangan Petak Terbagi (RPT) dengan 2 faktor, yaitu: yang pertama faktor Naungan (N) sebagai petak utama dengan 3 taraf yaitu: N0 = tanpa naungan (100% intensitas penyinaran), N1= dinaungi 25% (75% intensitas penyinaran), N2 = dinaungi 50% (50% intensitas penyinaran). Yang kedua faktor varietas padi (V) sebagai anak petak dengan 5 taraf yaitu : V1= varietas Sidenuk, V2= varietas Ciherang, V3= varietas Inpari 10, V4= varietas Inpari 30 dan V5= varietas Mugibat. Jumlah kombinasi perlakuan 15 kombinasi yang diulang sebayak 3 kali menghasilkan 45 satuan percobaan, jumlah tanaman per plot 40 tanaman dengan 10 tanaman sampel, jumlah tanaman keseluruhan adalah 1800 tanaman dengan jumlah sampel seluruhnya 450 tanaman. Hasil penelitian menunjukkan bahwa perlakuan intensitas penyinaran (naungan) berpengaruh nyata terhadap parameter tinggi tanaman 14 MST, jumlah anakan, jumlah anakan produktif, jumlah gabah berisi per malai, berat gabah kering per plot dan berat gabah kering per Ha. Sedangkan parameter tinggi tanaman 2, 4 dan 6 MST, panjang malai, jumlah gabah per malai, jumlah gabah hampa per malai, berat gabah 1000 biji, kandungan klorofil A, kandungan klorofil B, kandungan klorofil Total tidak berpengaruh yang nyata. Pada perlakuan varietas berpengaruh nyata terhadap parameter tinggi tanaman, jumlah anakan, jumlah anakan produktif, jumlah gabah per malai, jumlah gabah berisi per malai, sedangkan terhadap panjang malai, jumlah gabah hampa per malai, berat gabah 1000 biji, kandungan klorofil A, kandungan klorofil B, kandungan klorofil Total, berat gabah kering per plot, berat gabah kering per Ha, penggunaan varietas tidak memberikan perbedaan yang nyata. Interaksi varietas dan intensitas penyinaran memberi pengaruh yang nyata terhadap jumlah anakan dan jumlah anakan produktif. Sedangkan parameter tinggi tanaman, jumlah gabah per malai, jumlah gabah berisi per malai, panjang malai, jumlah gabah hampa per malai, kandungan klorofil A, kandungan klorofil B, kandungan klorofil Total, berat gabah 1000 butir, berat gabah kering per plot dan berat gabah kering per Ha tidak memberikan perbedaan yang nyata.Kata kunci : Intensitas naungan, Toleransi dan Varietas padi sawah
EFISIENSI SERAPAN NITROGEN TIGA VARIETAS KEDELAI DENGAN PEMUPUKAN NITROGEN DAN PENAMBAHAN RHIZOBIUM PADA TANAH DENGAN STATUS HARA N RENDAH PHYSIOLOGY EFFICIECY OF NITROGEN ABSORBTION WITH THREE SOYBEAN VARIETY OF UREA AND APPLICATIONS RHIZOBIUM IN SOIL WI Hamidah, Makruf; Hanum, Hamidah; Elfiati, Deni
Pertanian Tropik Vol 2, No 2 (2015)
Publisher : Pasca Sarjana FP USU

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The use of chemical nitrogen fertilizer tends to be high on soils with low nitrogen nutrient status, it can affect the balance of the global N cycle, contamination of ground water and the increasing N2O (nitric monoxide is one of the greenhouse gases). The objective of this research to compare the effect of nitrogen fertilization and application of Rhizobium on nitrogen uptake efficiency, growth and yield of three varieties of soybeans In Soil With Nutritrional Status Low Nitrogen. The research was conducted at the practice field Agricultural Extention Collage Medan, Deli Serdang North Sumatra Province in August-December, 2014. The method used is split-slip plot design with the main plot Rhizobium application and without Rhizobium, subplot is the varieties used are Burangrang, Tanggamus and Wilis. Sub-sub plot is the standard of N fertilization, that is: control, urea 50 kg / ha, 100 kg / ha and 150 kg / ha. Variable observations include: nitrogen absorption, plant dry weight, nodule and production. The results showed that the application of Rhizobium on the variety Wilis provide a significant response to the increased absorption of nitrogen, whereas the the varieties Burangrang and Tanggamus not give a significant response to increased nitrogen absorption. Urea fertilizer dose of 150 kg / ha on the use of Rhizobium inoculant tends to give a negative reaction to the Physiology Efficiecy Of Nitrogen Absorbtion (PEN), nodule, and weight of 100 grains. Physiology Efficiecy Of Nitrogen Absorbtion (PEN) of three varieties tested were not affected by the level of nitrogen fertilization and the addition of Rhizobium.Keywords: Soybean, Efficiency Nitrogen, Rhizobium