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Pertumbuhan Dan Serapan Nitrogen Azolla microphylla Akibat Pemberianfosfat Dan Ketinggian Air Yang Berbeda Utama, Putra; Firnia, Dewi; Natanael, Ganes
Agrologia Vol 4, No 1 (2015)
Publisher : Pattimura University, Ambon

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (93.078 KB) | DOI: 10.30598/a.v4i1.217

Abstract

Water fern Azolla microphylla symbioses with Anabaena azollae which is able to fix N2. Fern growth is strongly influenced by the availability of macro nutrients such as phosphate. The aim of this study was to determine the effect of concentration of phosphate fertilizers and different water levels on the growth and nitrogen uptake of Azolla microphylla. Research was conducted by using randomized block design with three replications. The treatment were  water level which consists of 0 cm, 2 cm, 4 cm, and 6 cm, and the concentration of phosphates (P) which is composed of without and with  15 ppm, 30 ppm and 45 ppm. The results showed that the water level are interdependent with the phosphates concentration to influence  Azolla’s covered area at  7-21 days after planting, wet weight, total dry weight, and total nitrogen uptake of Azolla microphylla. The water level 2 cm at a concentration of 30 ppm of phosphate fertilizers is the best treatment combination to increase Azolla’s covered area at 7-21 HST, wet weight, total dry weight, and total nitrogen uptake of Azolla microphylla.
BAKTERI PELARUT FOSFAT HASIL ISOLASI DARI TIGA LOKASI LAHAN KERING RIZOSFER TANAMAN JAGUNG (Zea mays) DI BANTEN Firnia, Dewi; ., Nurmayulis; Fatmawaty, Andi Apriany
Jurnal Agroekoteknologi Vol 7, No 1 (2015)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

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Abstract

Phosphorus in the soil is essential macronutrient for plant growth. Phosphate solubilizing bacteria are capable of managing phosphate availability in its soluble forms and are often found in the rhizosphere. This study aimed to know the level of total density and characteristics of phosphate solubilizing bacteria isolated from the rhizosphere of maize plants at three dry land locations in Banten.  The bacteria were isolated using serial plate dilution method. Results showed that four isolated phosphate solubilizing bacteria were obtained. Two isolates were obtained from Curug, one from Walantaka, and one from Petir. The total density of phosphate solubilizing bacterial colonies from those dry land locations were  1.9 x 1010 CFU/ml for Curug 1, 1.9 x 1012 CFU/ml for Curug 2, 6x1012 CFU/ml for Walantaka, and 4,8x1010 CFU/ml for Petir.
PERTUMBUHAN DAN HASIL TANAMAN JAGUNG MANIS (Zea mays saccharata Sturt) PADA BERBAGAI DOSIS PUPUK ORGANIK DAN INTENSITAS PENGOLAHAN TANAH ULTISOLS BANTEN Firnia, Dewi; Fatmawaty, Andi Apriany
Jurnal Agroekoteknologi Vol 1, No 2 (2009)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

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Abstract

ABSTRACT This Research aim to to know sweet maize crop result and growth ( Zea Mays Saccharata Sturt.) At various organic manure dose and intensity processing of soil tillage,This research have been executed in kampong baru petir Banten. Research take place from June until September 2008. Research use Random Device of Group ( factorial RAK) Pattern, consisting of two factor and three restating, first factor is organic manure dose with four level that is, 0; 10; 20; and 30 ha-1 ton. Second factor is intensity processing of soil tillage with three level that is, once, twice, and thrice processing of soil tillage, so that there are 12 treatment combination and 36 set of attempt. Result of research indicate that organic manure dose differ reality, clean weighing of cob at organic manure dose 10 ha-1 ton equal to 1.386,8 g per check, organic manure dose 20 ha-1 ton equal to 1.316,27 g per organic manure and check 30 ha-1 ton equal to 1.393,83 g per check. Intensity Processing of soil tillage show to differ is not real and also  not happened interaction among organic manure dose with intensity processing of soil tillage.Key words: soil tillage, organic manure, Ultisols
EVALUASI KESESUAIAN LAHAN UNTUK TANAMAN JAGUNG (Zea mays L.) BERDASARKAN ZONA AGROEKOLOGI PADA SKALA 1:50.000 DI KABUPATEN LEBAK Firnia, Dewi; Hermita, Nuniek; Nurjaman, Sofiyan Aditiya
Jurnal Agroekoteknologi Vol 7, No 1 (2015)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

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Abstract

Corn corp (Zea mays L.) is the second commodity food after rice. Corn crop is a plant that in its growth and development process need environmental factor, such as land. Land factor has big contribution in supporting growth and development of plants. Therefore, land has to be evaluated as of the commodities that will be cultivated can provide optimal results. The purpose of this research was to assess land suitability classes and provide direction zoning commodity corn crops in Lebak regency and provide alternative improvement of the limiting factors in an effort to increase corn production. Descriptive method based on desk study activities and survey was used in this research.  Principal of that method was based on approach of landscape mapping and the interpretation of aerial photographs or satellite images, then land evaluation of that land units. Agro-ecological zones parted as 5 zones and 18 sub zones. Zones that being in research areas were zone I (forestry), II (annual plants/plantation), III (annual plants and crops), IV (crops) and VII (forestry/pasture). Based on its land suitability for corn crops were in agro-ecological zone III and IV. In research area agro-ecological zone III and IV that suitable for corn commodities planting were 7 sub zones, there were III/Df;h;ei (S2-tc/wa/rc), III/Dhf;sp (S2-tc/wa/rc), IV/Df;h;ei (S2-tc/rc), IV/Dfs,hv/Wr (S2-tc/rc), IV/Dhf/Wr (S2-tc/rc), IV/Dfe/Wr (S2-tc), and IV/Wr/Dhf (S2-tc/rc), with land area reaches 62.877 ha or about 18,92%  from the total of Lebak regency land area is  332.371 ha.
SIFAT KIMIA ULTISOLS BANTEN AKIBAT PENGOLAHAN TANAH DAN PEMBERIAN PUPUK KOMPOS Firnia, Dewi
Jurnal Agroekoteknologi Vol 1, No 1 (2009)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

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Abstract

ABSTRACTThe objective of this experiment were find out interaction effect between soil tillage and Compost dose to some chemistry properties of Ultisols Banten . The experiment was carried at the Kampung Baru Petir Serang Banten from June to September 2008, by using Randomized Block Design with factorial pattern and three replications. The first factor was soil tillage (one, two and three time tillage), and the second factor was compost dung (0; 10; 20; and ton ha-1). The data of experiment were analyzed by Fisher test and Duncan multiple range test =0,05 The result of experiment showed there was interaction effect between soil tillage and compost dosages only on the soil pH, but independently soil tillage and compost dosages application gave significant effect chemical properties ( C-Organic, and Nitrogen).Key words: Soil Tillage, Compost dung, Ultisols
EKSPLORASI POTENSI MIKROBA TANAH DALAM MENINGKATKAN HASIL PANEN KEDELAI (Glycine max) PADA LAHAN KERING AM, Kartina; ., Nurmayulis; Fatmawaty, Andi Apriany; Firnia, Dewi
Jurnal Agroekoteknologi Vol 7, No 2 (2015)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

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Abstract

A research has been conducted to produce products of various microbial inoculants which synergistically function as a biological fertilizer and could improve soybean production on dry land, especially land that was marginal. Excavation of potential soil microbes on marginal dry land was conducted in Cibaliung District, Pandeglang Banten with a screening technique that had been tested in comparison with isolates that had been successfully tested its superiority. After proving the superiority of microbial synergism between multiple test isolates that had different roles in the transformation of nutrients, especially N and P. Microbial isolates demonstrated synergism effect formulated with a variety of carrier as inoculant products. In this research, isolation of microbes was conducted in the first year that was isolation of Azotobacter and Azospirillum with microbial enrichment with selective liquid media Ashby and Media Okon, BPF Pikovskaya media. The selection of microbial population density, which was aimed to produce a microbial consortium to produce microbes that work synergistically enhance the growth of plants was conducted in the second year. The experiment used a randomized completely block design (RCBD ) with a population density factor Azotobacter sp., Azospirillum and BPF: without treatment ( Z0, AZ0 and BP0) , 102cfu/ml (Z1 AZ1 and BP1), 104 cfu/ml (Z2, AZ2, and BP2 ), 106 cfu/ml (Z3, AZ3 and BP3), 108 cfu/ml (Z4, AZ4 and BP4) and 1010 cfu/1ml (Z5, AZ5 and BP5) soybean plants inoculated at the age of 2 M1ST repeated four times with further testing DMRT 5%. The parameters measured were: plant height, number of leaves, root length, leaf area, dry weight and root dry weight crown. Research showed that treatment of the various levels of population density Azotobacter sp. significantly effect on plant height, while density of population Azosprillium sp. significantly effect on plant height. BPF population density showed significant effect on the number of leaves.Key words: Soybean, Azospirillum, Azotobacter, and BPF
PENGARUH PEMBERIAN BEBERAPA JENIS PUPUK KOTORAN HEWAN DAN KONSENTRASI AIR KELAPA TERHADAP HASIL TANAMAN TOMAT (Lycopersicum esculentum Mill.) Ritawati, Sri; Firnia, Dewi; Rosyitah, Ita
Jurnal Agroekoteknologi Vol 9, No 1 (2017)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

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Abstract

This research was aimed to know the giving of some cattles manures and coconut water concentration to yield of tomato (Lycopersicum esculentum mill). This research had been conducted in the experimental farm Singamerta Institute for Agricultural Technology Banten. Starting from September to December 2013. The research used Randomized Completely Block Design, concisted of two factors. The first factors was the giving of cattles manures with three levels, they were: P0 (control), P1 (chicken manure) and (P2) cow manure. The second factor was coconut water concentration with four levels, they were: K0 (control), K1 (coconut water concentration 500 ml + water 500 ml), K2 (coconut water concentration 750 ml + water 250 ml ) and K3 (coconut water concentration 1000 ml). The result showed that the giving chicken manure gave the significant effect on number of fruits (4,53 fruit), the weight of fruits (84,63 g), diameter of fruits (28,16 mm). While the 1000 ml of coconut water concentration gave the significant effect on the weight of fruits (85,10 g) and the diameter of fruits (28,68 mm).Keywords : tomato, cattles manures, coconut water
Respons Nitrogen dan Azolla terhadap Pertumbuhan Tanaman Padi Varietas Mira I dengan Metode SRI Nurmayulis, Nurmayulis; Utama, Putra; Firnia, Dewi; Yani, Hasnan; Citraresmini, Ania
Jurnal Ilmiah Aplikasi Isotop dan Radiasi Vol 7, No 2 (2011): Desember 2011
Publisher : BATAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (282.409 KB) | DOI: 10.17146/jair.2011.7.2.86

Abstract

Penelitian ini dilakukan di Kampung Cisadap, Desa Bunter, Kecamatan Sukadana, Kabupaten Ciamis, Provinsi Jawa Barat dari Bulan Januarisampai Bulan Mei 2011 untuk mempelajari respons pertumbuhan tanaman padi yang diberi pupuk nitrogen dan Azolla michrophylla pada budidaya padi sawahSystem Of Rice Intensification . Penelitan ini menggunakan 5 dosis pupuk nitrogen (0 %, 25 %, 50 %, 75 %, 100 %) dari pupuk nitrogen yang direkomendasikan yaitu N 92 kg ha-1 (urea 200 kg ha-1), serta menggunakan Azolla michrophylla sebanyak 1,13 ton ha-1. Hasil penelitian menunjukkan bahwa pemberian dosis pupuk nitrogen sebanyak 50 % (100 kg ha-1) dan pemberian Azolla michrophylla sebanyak 1,13 ton ha-1 memberikan hasil yang baik pada parameter tinggi tanaman 2-6 MST, jumlah anakan 2-7 MST. Interaksi antara penggunaan dosis 50% pupuk nitrogen dan 1,13 Azolla michrophylla terjadi pada tinggi tanaman umur7 MST, dan bobot kering tanaman.
PENGARUH PEMBERIAN BEBERAPA JENIS PUPUK KOTORAN HEWAN DAN KONSENTRASI AIR KELAPA TERHADAP HASIL TANAMAN TOMAT (Lycopersicum esculentum Mill.) Ritawati, Sri; Firnia, Dewi; Rosyitah, Ita
Jurnal Agroekoteknologi Vol 9, No 1 (2017)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/j.agrtek.v9i1.5044

Abstract

This research was aimed to know effect of some kinds of cow manures application and coconut water concentration to yield of tomato (Lycopersicum esculentum Mill). This research was conducted in the experimental farm Singamerta Institute for Agricultural Technology Banten. Starting from September until December 2013. The research used Randomized Completely Block Design, concisted of two factors. The first factors was the giving of cattles manures with three levels, they were : P0 (control), P1 (chicken manure) and (P2) cow manure. The second factor was coconut water concentration with four levels, they were: K0 (control), K1 (coconut water concentration 500 ml + water 500 ml), K2 (coconut water concentration 750 ml + water 250 ml ) and K3 (coconut water concentration 1000 ml). The result showed that the giving chicken manure gave the significant effect on number of fruits (4.53 fruit), the weight of fruits (84.63 g), diameter of fruits (28.16 mm). While the 1000 ml of coconut water concentration gave the significant effect on the weight of fruits (85.10 g) and the diameter of fruits (28.68 mm).Keywords: Coconut water, Cow manures, Tomato