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Jurnal Agroekoteknologi
ISSN : -     EISSN : 25487108     DOI : -
Core Subject : Agriculture,
Journal of Agroecotechnology contains articles directly sourced from the results of research related to the cultivation of plants related to soil, plants, weeds, pests and diseases.
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Articles 10 Documents
Search results for , issue " Vol 6, No 1 (2014)" : 10 Documents clear
PERTUMBUHAN BIBIT KELAPA SAWIT (Elaeis guineensis Jacq.) YANG DIBERI KOMPOS TANDAN KOSONG KELAPA SAWIT Nurmayulis, Nurmayulis; Utama, Putra; Pohan, Assad Syah B.
Jurnal Agroekoteknologi Vol 6, No 1 (2014)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

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This research aims to know the influence of the granting of the empty Palm bunches compost on the growth of seedlings of the oil palm (Elaeis guineensis Jacq.) in the nursery. This research has been done in the Banjar Agung village, Sub-district of Banjar Jaya, Serang Banten in May until July 2013. This study used a randomized blocked design (RAK) with a single factor and 5 treatment namely: M0 (0 g Compost), M1 (33 g Compost), M2 (67 g Compost), M3 (100 g Compost), M4 (133 g Compost). Every treatment repeated 5 times, so that the obtained 25 units of the experiment. The parameters observed were higher plants (cm), stem diameter (mm), broad-leaf (cm2), root dry weight (g) and dry weight (g). The research results showed that treatment empty Palm bunches composting gives a very real significant influence for plant height, while diameter of stem, leaf area, dry weight, and root dry weight berangkasan gives no real significant influence on the growth of oil palm seeds.
UPAYA PENINGKATAN PRODUKTIVITAS PADI MELALUI VARIETAS UNGGUL BARU MENDUKUNG SWASEMBADA BERKELANJUTAN DI PROVINSI JAMBI Adri, Adri; Yardha, Yardha
Jurnal Agroekoteknologi Vol 6, No 1 (2014)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

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Rice productivity in Jambi Province is still low, it is necessary for improving productivity. One of the efforts to increase the rice productivity in the Jambi Province is through the application of Integrated Crop Management approach of rice accompanied by technical personnel of Department of Agriculture, Extension and Researcher. One form of assistance is carry out adaptation testing new rice varieties specific location. Tests carried out at the VUB highland rice irrigation agro-ecosystem, rainfed, and tidal swamp. The results showed the diversity of productivity between varieties and locations is different. Average productivity new varities tested higher than the average productivity of rice in the Jambi Province. Average productivity of the VUB are; Inpari 15 (5.7 t ha-1GKP), Inpari 17 (7.4 t ha-1GKP), Inpari 21 (5.77 t ha-1GKP), Inpari 18 (7.01 t ha-1GKP), Inpara 1 (7.2 t ha-1GKP), and Inpara 3 (6.2 t ha-1GKP).
PENGARUH JARAK TANAM DAN INTERVAL WAKTU PENGENDALIAN GULMA TERHADAP PERTUMBUHAN KACANG PANJANG (Vigna sinensis L.) Uluputty, Muhammad Riadh
Jurnal Agroekoteknologi Vol 6, No 1 (2014)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

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Increasing production of beans cultivation requires good technique. The market demand is also quite high. This study aims to determine the effect of plant spacing and weed control intervals on the growth and yield of beans has been implemented. The experiment was the spacing of 40 x 60 cm, 40 x 40 cm and 40 x 30 cm, and the time interval weed control is two weeks after planting, three weeks after planting, and four weeks after planting. Results showed that the spacing independently significant effect on the number, length and weight of pods plant beans, and not rely on weed control treatment intervals. A spacing of 40 x 60 cm gives results more pods, the pods are longer and heavier than the pod treatment spacing 40 x 40 cm and 40 x 30 cm.
KARAKTERISTIK PERTUMBUHAN DAN WAKTU GENERASI ISOLAT Azotobacter sp. DAN BAKTERI ENDOFITIK ASAL EKOSISTEM LAHAN SAWAH Setiawati, Mieke Rochimi; Suryatmana, Pujawati; Herdiyantoro, Diyan; Ilmiyati, Zahra
Jurnal Agroekoteknologi Vol 6, No 1 (2014)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

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Azotobacter sp. and N2-fixation endophytic bacteria are microbes that play a role in fixation the N2 from the free air and helps supply of N to plants and can make efficient use of N derived from inorganic fertilizer. N2-fixation microbes utilization in rice fields can reduce the cost of production of rice plants. By studying the characteristics of the two types of beneficial bacteria that is expected to be engineered to enhance the role of these bacteria contribute in supplying N to rice crops. The method used in this study is exploratory and observe the characteristics of growth and generation time of bacteria for 72 hours. The results of this study indicate that the bacterial isolates of Azotobacter sp-1 has the highest population in 48 hours with a total population of 1.58 x107 cfu ml-1 , whereas bacteria Azotobacter sp-2 has the highest population in 60 hours with a total population of 3.12 x106 cfu ml-1 . Both N2-fixation endophytic bacteria populations reached the highest peak in the 60th hour with a total population of N2-fixation endophytic bacteria-1 at 1.12 x 108 cfu ml-1 of N2-fixation endophytic bacteria-2 of 9.4 x 107 cfu ml-1 of both isolates endophytic bacteria showed a similar growth pattern. Azotobacter sp. isolates from rhizosfir of the rice plant have a difference generation time, while the two isolates of N2-fixation endophytic bacteria from tissue of rice plants having the same generation time. Isolates of Azotobacter sp.-1 had the fastest of generation time, capable of generating new cells every 158.66 minutes or every 2.64 hours.
KARAKTERISTIKA TANAMAN LEGUME PADA FASE VEGETATIF Rusmana, Rusmana; Yenny, Ratna Fitri
Jurnal Agroekoteknologi Vol 6, No 1 (2014)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

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This study was conducted to determine the pattern characteristics of legumes in the vegetative phase by using the Relative Growth Rate, Net Assimilation Rate (LAB), and Leaf Area Ratio (LTR). Where the LTR is dry matter production efficiency index, is a measure of the efficiency of clean LAB leaf area and the NLD is the quotient of leaf area to total plant dry weight. The experiment was conducted in field trails and laboratory PandeglangSMKN 2 Faculty of Agriculture, University of Sultan AgengTirtayasa. Starting in September to December 2012. Trial ordered by a single factor randomized complete block design (legume crops). Type of legume crops are planted consist of the three types, namely : soy beans, green beans, and peanuts. For purposes of analysis vegetative growth phase was observed (destructive) six times. The result showed that the characteristics of three types of legume crops : soy beans, peanuts, green  beans, and each has different characteristics. Where the LTR and LAB in legumes has decreased, and the soy bean crop legumes NLD slightly increased, while the peanuts and green beans decreased with increasing age of the plant.
APLIKASI PUPUK ORGANIK, NPK DAN BPF PADA ULTISOLS UNTUK MENINGKATKAN C-ORGANIK, N-TOTAL, SERAPAN N DAN HASIL JAGUNG MANIS (Zea mays saccharata Sturt.) Yuniarti, Anni; Machfud, Yuliati; Mita, Mita
Jurnal Agroekoteknologi Vol 6, No 1 (2014)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

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This research was conducted to find out the interaction of organic fertilizer, NPK with BPF on Ultisols of the organic carbon, total nitrogen, N uptake, and result of sweet corn (Zea mays saccharata Sturt). The research was conducted from June to September 2013 at the Experimental Ciparanje, Faculty of Agriculture, Padjadjaran University, Jatinangor, Sumedang, West Java elavated at 724 meters above sea level. The experimental design used was Randomized Block Design (RAK) arranged in factorial pattern with 14 treatments and three replicates. The first factor is organic and NPK fertilizers (P) consisting of seven levels : without organic fertilizer and NPK; POPG + ½ dose of NPK; POPG + 1 dose of NPK: Compost + ½ dose of NPK; Compost + 1 dose of NPK; Manure + ½ dose of NPK; Manure + 1 dose of NPK. The second factor is the Solvent of phosphoric Bacteria (B) consisting of two levels : without the BPF and BPF 10 mL The results of experiment showed that there was not interaction effect between different called organic fertilizer and NPK with BPF of organic carbon, total nitrogen, plant uptake of N, and results of sweet corn. Independently organic fertilizer, NPK gave significant effect on organic carbon, total nitrogen, plant uptake of N, results of sweet corn and BPF was significant effect of organic carbon and plant uptake of N but has not siginificant effect of total nitrogen and results sweet corn. Treatment POPG with 1 dose of NPK shows the best formulations can improve results of sweet corn on Ultisols Jatinangor, that is 249,17 g plant-1 or 9 t ha-1.
SKRINING BAKTERI ENDOFIT PERAKARAN PISANG SECARA IN VITRO SEBAGAI AGEN PENGENDALI HAYATI TERHADAP PENYAKIT LAYU BAKTERI (Ralstonia solanacearum) PADA TANAMAN PISANG Dewi Hastuti, Dewi; Saylendra, Andree; Rohman, Eman Saeful
Jurnal Agroekoteknologi Vol 6, No 1 (2014)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

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This research aimed to find and identify isolates ofendophytic bacteria in banana plants root to suppress bacterial wilt disease in banana plants (Musa aradisiaca) This research has been carried out in the Laboratory of Agroecology Department Faculty of Agriculture, Sultan Ageng Tirtayasa Universityfrom December 2012 to April 2013.This research used a completely randomized design consisting of a single factor that endophytic bacteria consisting of 10 levels: control (without bacteria), bacterial endophyte 1, bacterial endophyte 2, bacterial endophyte 3, bacterial endophyte 4, bacterial endophyte 5, bacterial endophyte 6, bacterial endophyte 7, bacterial endophyte 8, bacterial endophyte 9. The treatment repeated 4 times. The parameter done are the percentage of inhibition, antagonism between endophytic bacteria test, test bacterial gram on endophytic bacteria, and bacterial morphology. This researchindicated,that all bacteria hada potential antagonist to inhibit Ralstonia solanacearum. Of the 60 isolates, 30 isolates showed the ability to inhibit the growth of Ralstonia solanacearum in vitro. Totally of 9 isolates were selected as candidates obtained antagonist belonging to Bacillus sp. Three isolates that had the best inhibitory ability against Ralstoniasolanacearum were BE 10-812, 10-8 BE 13, and BE 10-8 29. These three isolates were identified as Bacillus sp.
POTENSI Azotobacter sp. ST.04 DAN KOMPOS Azolla pinata UNTUK MENINGKATKAN EFISIENSI BIODEGRADASI HIDROKARBON DALAM PROSES BIOREMEDIASI LIMBAH MINYAK BUMI Suryatmana, Pujawati; Setyawati, Mieke Rochimi
Jurnal Agroekoteknologi Vol 6, No 1 (2014)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

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The Petroleum hydrocarbon waste is one of Pollutant contributing which cause problem in environmental. Azotobacter is a rizobacteria type which is capable fixating dinitrogen. The result investigation showed that Azotobacter sp strain AV04 is capable producing many extra-cellulary biomolecule. That strain AV04 known is capable producing a biomolecule which acting as strong bioemulsifier. Azolla pinata is a hydro plant that can contributes of N, P dan K nutrition to the Soil. This plant has potentialy as a nutrition organic source. The research was focused on the role of the two agents, i.e. Azotobacter sp starin AV04 as the biosurfactan producing bacteria and Azolla pinata composted in the biodegradation hydrocarbon processes. Results showed that the Total Petroleum Hydrocarbon (TPH) efficiency in the 1st week and 5th week, which was in the treatment of 10% (w/w) of A. pinata and 2% (v/w) of Azotobacter sp starin AV04, was reaching in value 56.15 % and 98.03 % respectively. In the optimum treatment showed that the TPH removal efficiency consistently was significantly rising up as long as 5 week period of bioremediation. The residue compounds of Petroleum after one week period incubation on the optimum treatment were constituting hydrocarbon comprise of 26 species of hydrocarbon compound, while at the same time and in the control treatment founded the hydrocarbon compounds remain were still about 37 species of Hydrocarbon compound.
LIMBAH SAGU: POTENSI LOKAL UNTUK MEDIA PUPUK HAYATI Hindersah, Reginawanti; Kalay, A. Marthin; Jacob, Agus; Talahaturuson, Abraham
Jurnal Agroekoteknologi Vol 6, No 1 (2014)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

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Sago starch production leaves solid and liquid wastes that has not been used optimally. Both organic substances still contains a lot of nutrients, and could be processed into raw material for bio-fertilizers media. Solid waste, known as ela sago, has been developed into compost while the liquid waste did not. The objective of this study was to verify volume ratio of liquid inoculant of Azotobacter chroococcum in solid inoculant produced from ela sago; and determine the concentration of sago waste water as a growth medium of biofertilizer A. chroococcum. This study confirms population of A.chroocccum and T. harzianum in ela sago compost reached 106 cfu/g and 108 cfu/g consecutively following enrichment with either 2% or 4% of A. chroococcum liquid inoculant. Sago wastewater can used support A.chroococcum growth. This study proved that waste from sago starch production could be used as a natural medium for biofertilizer.
RESPONS PERTUMBUHAN BIBIT KELAPA SAWIT (Elaeis guineensis Jacq.) DI PRE NURSERY AKIBAT PEMBERIAN PUPUK MELALUI DAUN Usman, Edy; Meriyanto, Meriyanto; Haris, Haris
Jurnal Agroekoteknologi Vol 6, No 1 (2014)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

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The study aimed to assess the aims of palm oil seeds in the growth response due to pre nursery fertilizer through the leaves. The research was conducted by using a randomized block design experiment, which consists of six treatments were repeated four times. Leaf manure treatment under study consists of: Urea (P1), Gandasil D (P2), Bayfolan (P3), Grow More (P4), NPK Blue (P5), and NPK Yellow (P6). Each treatment consisted of 10 plants that required as many as 240 plant. Parameters observed that plant height, number of midrib, girth and leaf area of plants. The results showed that the application of fertilizer through the leaves did not affect significantly to the growth of palm oil seedlings in pre nursey. In the tabulation of NPK yellow produce better relative growth than other treatments that produce number midrib as 5.25, 5.45 cm of girth and 540.33 cm2 leaf area.

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