Jurnal Agroekoteknologi
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RESPONS PERTUMBUHAN GULMA TUKULAN KELAPA SAWIT (Elaeis guineensis JACQ.) TERHADAP PEMBERIAN BEBERAPA JENIS DAN DOSIS HERBISIDA DI PTPN VIII KEBUN CISALAK BARU
Get PDFThis research had been conducted to determine the dose response of herbicide mixtures against weeds tukulan palm oil that has been held in PTPN VIII Kebun Cisalak Baru. This study used quantitative and qualitative methods with a Completely Randomized Design where treatment consists of two factors, there are 3 levels ie herbicide Glyphosate (H1), Paraquat (H2), Glyphosate + Paraquat (H3) and 4 levels of herbicide dose of 10 ml/0.5 liters of water (D1), 10 ml/1 liter of water (D2), 10 ml/1.5 liters of water (D3), 10 ml/2 liters of water (D4), which was repeated 3 times and each disc consists of two oil palm fruit oil palm plantations (tukulan) and thus require 36 disks palm and there were 72 experimental unit. Observation parameters include leaf chlorophyll content, leaf color, leaf shape and symptoms of poisoning. The results showed that the chlorophyll content parameter with a mixture of herbicides containing Glyphosate dose of Paraquat 5 ml + 5 ml + 0.5 liters of water have an effect on leaf chlorophyll parameters. Then the mixture of herbicides containing Glyphosate dose of Paraquat 5 ml + 5 ml + 1 liter of water affect the parameters of the symptoms of poisoning. While the herbicide mixture containing 10 ml dose of Paraquat + 0.5 liters of water affects the leaf color parameters.
PENGARUH DOSIS PEMUPUKAN PADA SISTEM TANAM TUMPANGSARI TERHADAP PERTUMBUHAN DAN HASIL JAGUNG MANIS DAN KEDELAI
Get PDFThis research aimed to determine growth pattern and production of crops grown with mono and multiple cropping systems and to calculate Land Equivalency Ratio (LER). The research was conducted at the experimental field of Faculty of Agriculture of Jenderal Soedirman University, from March toMay 2015. The variables observed for corns were plant height, leaf number, corncob, corncob length, while for soybean were plant height, leaf number, weight and number of pods pods, as well as LER. This study used a randomized block design (RBD) with two factors, i.e cropping systems (M1: Mono cropping, M2: Mltiple cropping) and fertilizers (P0: 0 % doses fertilizer, P1: 50% doses fertilizer and P3: 100% doses fertilizer). The data were analyzed using analysis of variance (F test) and if significantly different were tested further by a further test LSD (Least Significant Difference) at 5% error level. These results indicated that the mono and multiple cropping had significantly affected on plant height and leaf number but did not significantly affect on corncob, corncob length. Similarly, in plant height, leaf number, weight and number of pods of soybean pods is no different. LER value for each trial was > 1.Keywords: corn, soybeans, LER, monocropping, multiple croppin
Pengaruh NaCl Terhadap Kalus Tebu Varietas Bululawang (The Effect of NaCl on Callus of Sugarcane Varieties Bululawang)
Get PDF The research was aim to study the effect of NaCl on callus of sugarcane varieties Bululawang. This experiment has been conducted in Tissue Culture Laboratory of the Faculty of Agiculture, University of Jember from December 2012 to Mei 2013. The experiment which consists of four levels concentration of NaCl : 0 g/l (K0), 4 g/l (K1), 8 g/l (K2), 12 g/l (K3), and 16 g/l (K4). Each treatment consists of four replications. The experiment consisted of three stages: callus induced, salinity strees of callus, and shoot regeneration of sugarcane on various rate NaCl. Observations conducted qualitative description of the parameters of the color of callus , callus structure and shoot regeneration. The results of this experiment indicated that the callus of sugarcane varieties Bululawang experienced salinity stres of NaCl at 4 g/l showed symptom degradation of color to yellow with sticky crumb structure. Increasing consentrations of NaCl 8-16 g/l lead callus color being tawny until black with sticky crumb structure. Salinity stres with consentrations of NaCl at 4 g/l caused callus is not able to regenerate to form buds and increase callus cell death.
KOMPONEN HASIL DAN HASIL BERBAGAI VARIETAS TANAMAN PADI (Oryza sativa L.) DAN BAHAN ORGANIK DENGAN METODE SYSTEM OF RICE INTENSIFICATION
Get PDFThis study aims to determine yield componen dan yield of some rice varieties (oryza sativa L.) and organic material with methods system of rice intensification (SRI). This research was conducted in the village of Kaduranca Cibojong Padarincang District of Serang Banten Province, from May 2013 to September 2013 using a factorial randomized block design repeated 3 times. Factors studied included rice varieties, namely: Inpari 11, Ciherang, and HIPA 10 and granting some organic ingredients, namely: Without organic matter, Organic Materials rice straw. The results showed that the use of some varieties showed the best effection the parameters of number of grains perpanicle and grain weight of 1000 grains. HIPA 10 varieties and varieties Ciherang was higher than varieties Inpari 11. While the number offilled grain parameters, the number of empty grains, weightof dry grain harvest, and dry milled grain weight had no significant effect. Provision of straw and organic material gave the best effect on plant height, number of tillers, number of productive tillers, dry weight of harvested grain, milled rice weight, percentage of empty grains and the percentage of filled grain. There was no interaction between several varieties of rice plants with the organic material toall observed variables
PENGARUH KUAT MEDAN MAGNET DAN LAMA PERENDAMAN TERHADAP PERKECAMBAHAN PADI (Oryza sativa L.) KADALUARSA VARIETAS CIHERANG
Get PDFThis research was aimed to know the effect of magnetic field strenght and duration of Immersion on Germination of ExpiredRice (Oryza sativa L.) Seed of Ciherang Variety. This research used a Randomized Complete Design with two factors. The first factor was magnetic field strenght (M) consisting of four levels, namely: M0 (0 mT), M1 (15 mT), M2 (20 mT) and M3 (25 mT). The second factor was duration immersion in magnetized water (T), which consists of three levels, namely: T1 (12 hours), T2 (24 hours) and T3 (36 hours). The combination treatment was repeated three times, so there was 36 experimental units. Observed variables were germination age (days), the maximum growth potential (%), growth rate (%/day), normal germination percentage (%) and abnormal germination percentage (%). The result showed that magnetic field strenght and magnetized water is not able to improved for all observed variables were germination age (days), maximum growth potential (%), growth rate (%/day), normal germination percentage (%) and abnormal germination percentage (%). There was an interaction between the magnetic field strenght and duration of immersion time. The interaction magnetic field strenght of 0 mT and 15 mT with 12 hours and 20 mT with 24 hours immersion. Improved the growth rate and normal germination percentage by 0,95 %/day and 13,33% consecutively
PERBANYAKAN Trichoderma harzianum PADA MEDIA BERBASIS ELA SAGU
Get PDFTrichoderma harzianum has been widely known as biological control agents of plant diseases. To obtain inoculum in large quantities waste agricultural products could be used as media. Ela sago is solid wastes originated from sago processing, contains C-organic, nitrogen, phosphorus, potassium, calcium, magnesium, as well as crude protein, fat, crude fiber, ash, cellulose, hemicellulose, lignin, and silica. The objective of this laboatory experiment was to determina the capacity of ela sagu in combination with rice bran and husks as T. harzianum inoculum production. The research was conducted in laboratorium Nemathology, Plant Pathology Agriculture Faculty of Pattimura University. The experiment was conducted from March to April 2014. The medium testedin this experiment were ela sago, ela sago + husk, ela sago + bran, ela sago + husk + bran, husk, bran, husk + bran, and corn. The experiment was set up by using a completely randomized design, replicated three times. The experimental results showed that the number of conidiumon mixed media ela sago + bran and ela sago + bran + husk reached up to 1011 per g media and significantly greater than that of ela sago, elasago + husk, Husk + bran, husk, bran, and corn media
PERTUMBUHAN TANAMAN MARASI (Curculigo latifolia) DENGAN PERBEDAAN KONSENTRASI NAA (Naphthalene Acetic Acid) DAN BAP (Benzyl Amino Purine) SECARA IN VITRO
Get PDFThe aim of this research was to know In Vitro initiation on shoots of marasi (Curculigo latifolia) by different concentration of NAA(Naphthalene Acetic Acid) And BAP (Benzyl Amino Purine). This research has been done at Biotechnology Laboratory of Agriculture Faculty, Sultan Ageng Tirtayasa University since August to October 2014. This research used Randomized Complete Design (RCD) with two factors. The first factor was NAA concentration with 4 levels, they were mg/l; 0,2 mg/l; 0,4 mg/l; 0,6 mg/l. The second factor was BAP concentration with 4 levels, they were 0 mg/l; 0,5 mg/l; 1 mg/l; 1,5 mg/l. The research showed that the NAA concentration gave significant effect on plant height at 4, 5, 6 and 7 WAP (Week after planting), and the BAP concentration gave significant effect on plant height at 7 WAP. There were not combination effect on NAA and BAP concentration on bud initiation time and plant height. All the living explants during the observation reached 83,5% with the number of contaminating explants was 60% and browning explants 87,5%
PENGKAJIAN PENERAPAN PENGENDALIAN HAMA ULAT, Spodoptera exiqua PADA USAHATANI BAWANG MERAH DI SERANG, BANTEN
Get PDFPest is one of the limiting factors in shallots cultivation.To overcome pest problems,shallots farmers generally use pesticides intensively. These circumstance led theincrease of production costs and inefficient on shallots cultivation. One effort is toreduce production costs and the use of pesticides with the application of pest controlthreshold. Study of determination of control threshold on shallots cultivation wascarried out at Kramatwatu Subdistrict, Serang District, Banten Province, in Novemberuntil December 2014. Three treatments tested in the experiment, namely (A). S.exiqua moth caugth > 10 individu per day, (B). Plant damage of 5%, (C). application ofpestiscide every 3 days. The experiment used a randomiced block design and eachtreatment was repeated eight times. Results showed that control threshold based on thethe catch of the mouth > 10 per day gave shallots yields of 14.78 t/ha and benefit of Rp.99.780.000/ha with the value of B/C ratio of 2,07. In the treatment of B, based on cropdamage the yield was 12.20 t/ha and benefit of Rp 69.780.000/ha was obtained withB/C 1.38; while in treatment C, application of pesticides every 3 days yielded 11.40 t/haand gave benefit of Rp 62.080.000/ha with B/C at 1.19. Implementation on the controlthreshold, was economically feasible to adopted because it can inrease the yield and netbenefits compared to the system of pest routinely aplied every 3 days and plant damage5%. Key Words: Spodoptera exiqua, control threshold, benefit
EKSPLORASI POTENSI MIKROBA TANAH DALAM MENINGKATKAN HASIL PANEN KEDELAI (Glycine max) PADA LAHAN KERING
Get PDFA 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 BP
RESPONS PERTUMBUHAN VEGETATIF TANAMAN SAWI (Brassica juncea L.) AKIBAT PERLAKUAN MEDIA TANAM DAN DOSIS PUPUK NITROGEN
Get PDFThis study aims to get a response mustard plant vegetative growth effect treatment differences planting medium sand and differences of nitrogen fertilizer dosage and combination of both treatments. The research was conducted in the area of vilage Pangkalan Masyhur, altitude 25 m above sea level. The experiment was conducted from August to November 2014. This study used a randomized block design factorial consisting of two factors, namely M1 = Media mixed sandy soil: cow manure (ratio 1: 1), M2 = Media mixed sandy soil: cow manure (ratio 2: 1), M3 = Media mixed sandy soil: cow manure (ratio 3: 1) and the second factor is the dosage of nitrogen fertilizer by 4 levels ie N0 = 0 kg (without fertilizer), N1 = 250 kg ha-1(0.5 g polybag-1), N2 = 500 kg ha-1(1 g polybag-1), N3 = 750 kg ha-11.5 g polybag-1). Parameters observed in this study were plant height (cm), number of leaves, wet weight of each plant of each sample (g), wet weight plant of each polybag (g). The results showed that the planting medium significantly affected plant height, plant wet weight of each plant of each sample and wet weight plant of each polybag, but not significant effect on the amount of leaf mustard. The best result in the treatment of tthe planting medium sand with manure ratio 1 : 1 (M1). Urea dosing effect no significant effect on plant height, number of leaves and mustard plant wet weight of each sample per sample and mustard plant wet weight of each polybag. The combination of growing media and urea effect no significant effect on plant height, number of leaves and mustard plant wet weight of each sample and mustard plant wet weight of each polybag