Jurnal Agroekoteknologi
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UPAYA PENINGKATAN PRODUKTIVITAS PADI MELALUI VARIETAS UNGGUL BARU MENDUKUNG SWASEMBADA BERKELANJUTAN DI PROVINSI JAMBI
Get PDFRice 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)
POTENSI Azotobacter sp. ST.04 DAN KOMPOS Azolla pinata UNTUK MENINGKATKAN EFISIENSI BIODEGRADASI HIDROKARBON DALAM PROSES BIOREMEDIASI LIMBAH MINYAK BUMI
Get PDFThe 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
PERTUMBUHAN BIBIT KELAPA SAWIT (Elaeis guineensis Jacq.) YANG DIBERI KOMPOS TANDAN KOSONG KELAPA SAWIT
Get PDFThis 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
LIMBAH SAGU: POTENSI LOKAL UNTUK MEDIA PUPUK HAYATI
Get PDFSago 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
Get PDFThe 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
PENGARUH KOMBINASI JENIS DAN DOSIS PESTISIDA NABATI TERHADAP HAMA WALANG SANGIT (Leptocorisa oratorius Fabricius) PADA TANAMAN PADI (Oryza sativa L.)
Get PDFThe research was aimed to determine effect combination type and dose pesticides nabati for pest walang sangit (Leptocorisa oratoruis Fabricius) in Rice (Oryza sativa L.). This research was conducted in the Greenhouse Center for Food and Horticultural Crop Protection Banten Province in February-April 2011 with an altitude of 5 m above sea level. The results was arranged as Randomized Completely Block Design 1 factor consisting of 9 treatment specifically: A = Control, B = Ginger 3 L ha-1 (0.018 ml t-1), C = Ginger 6 L ha-1(0.037 ml t-1), D = Ginger 9 L ha-1 (0.056 ml t-1), E = Ginger 12 L ha-1 (0.075 ml t-1), F = Galanga 3 L ha-1 (0.018 ml t-1), G = Galanga 6 L ha-1 (0.037 ml t-1), H = Galanga 9 L ha-1 (0.056 ml t-1), I = Galanga 12 L ha-1 (0.075 ml t-1) which is repeated three times. The variables measured were percentage of deaths pests Walang sangit, pest attacks Walang sangit intensity. The results research shows that combination type and dose pesticides nabati non signifikan against the percentage mortality and intensity of pest attack because dose and frequency used towards per plant is too low. The intensity of pest attack Walang sangit five tail per plant within 5 days in the amount of 2,29 %
RESPONS PERTUMBUHAN DAN HASIL SEMANGKA TANPA BIJI (Citrullus vulgaris Schrad) TERHADAP BEBERAPA JENIS MULSA
Get PDFThis study aims to observe the effect of various types of mulch on the growth and yield of seedless watermelon (Citrullus vulgaris Schard). Implementing research in farmers' fields Scales Village, District Indralaya, Ogan Ilir, with a height ranging from 4-22 m above sea level, from February to April 2012. Research design using randomized block design, consisting of five treatments and five replications. The treatments were P0 = control (without mulch), P1 = use black-silver plastic mulch, P2 = use black plastic mulch, mulch P3 = using reeds as mulch as 0.8 kg of dry weight per m², P4 = use corn stalks mulch 2.6 kg dry weight per m². Parameters observed that the length of plant, days to flowering, fruit diameter, mean fruit weight, fruit weight per plant, fruit weight ha-1 (yield), wet biomass, and weight of wet roots. Black-silver plastic mulch influenced better on the growth and yield of seedless watermelon, compared with the other mulch and can increase the production of fruit namely the fruit weight/plant of 10.15 kg or 20.3 tons ha-1
PENGENDALIAN PENYAKIT ANTRAKNOSA (Colletotrichum capsici) PADA CABAI MERAH DENGAN BEBERAPA BAKTERI SEBAGAI AGEN BIOKONTROL
Get PDFResearch has been conducted to determine some of the bacteria of antraknosa disease control in chilies (Capsicum annum L.) with in vitro and in vivo methods conducted in the Agroecology Laboratory, Agriculture Faculty of Sultan Ageng Tirtayasa University on June to October 2011. The research uses Completely Randomized Design same factors as rizo-bacterium bio-control agents. In in vitro test for each factor composed of three level they are application of bio-control from the Pseudomonas fluorescens rizo-bacterium, application of bio-control from the Bacillus sp. rizo- bacterium, and without using a biocontrol agents. In in vivo tests of each factor is composed of 5 levels they are (CO+) without bio-control agents on uninfected chilies, (CO-) without biocontrol agents on infected chilies, with bio-control agents from the Bacillus sp. rizo-bacterium on infected chilies, with bio-control agents from the Bacillus sp. rizo-bacterium on infected chilies, and use bio-control agents combinations of P.fluorescens and Bacillus sp. rizo-bacterium repeated 5 times. Bio-control agent that comes from rhizosfer lands of chilies cultivation, are derived from Ciakar village Cikeusal sub-district, Serang, Banten. The results showed that the biocontrol agents fate with in vitro and in vivo method suppressed antraknosa disease caused by the pathogen Colletotrichum capsici and reduce chilies weight. Bio-control application with P.fluorescens rizo-bacterium group is the best treatment in in vitro test. While in in vivo test, biocontrol agents application of P.fluorescens rizo- bacterium is the best treatment in decrease the incubation period, incidence of disease, and disease antraknosa intensity in chilies, while in decrease in weight shrinkage chilies The best treatment is shown in biocontrol agents of the Bacillus sp. rizo-bacterium
RESPONS PERTUMBUHAN DAN HASIL SEMANGKA TANPA BIJI (Citrullus vulgaris Schrad) TERHADAP BEBERAPA JENIS MULSA
Get PDFThis study aims to observe the effect of various types of mulch on the growth and yield of seedless watermelon (Citrullus vulgaris Schard). Implementing research in farmers' fields Scales Village, District Indralaya, Ogan Ilir, with a height ranging from 4-22 m above sea level, from February to April 2012. Research design using randomized block design, consisting of five treatments and five replications. The treatments were P0 = control (without mulch), P1 = use black-silver plastic mulch, P2 = use black plastic mulch, mulch P3 = using reeds as mulch as 0.8 kg of dry weight per m², P4 = use corn stalks mulch 2.6 kg dry weight per m². Parameters observed that the length of plant, days to flowering, fruit diameter, mean fruit weight, fruit weight per plant, fruit weight ha-1 (yield), wet biomass, and weight of wet roots. Black-silver plastic mulch influenced better on the growth and yield of seedless watermelon, compared with the other mulch and can increase the production of fruit namely the fruit weight/plant of 10.15 kg or 20.3 tons ha-1
PEWARISAN KARAKTER KETAHANAN TERHADAP CHIVMV (CHILLI VEINAL MOTTLE VIRUS) PADA TANAMAN CABAI
Get PDFInheritance of resistance trait to ChiVMV was studied in intraspecific capsicum population derived from a cross between two Capsicum annuum line, PBC495 as a resistance line and ICPN12#4 as a susceptible line. The resistance was assessed by diseased index (DI) and score of absorbance value at 405 nm, two weeks after inoculation. Based on t-test of F1 and F1R, it was concluded that there was no maternal effect. Nil symptoms resembling the resistant parent were identified in the progeny F2, BC1P1 (BC1 to the resistant parent) and BC1P2 (BC1 to the susceptible parent) populations. Segregation of resistance (nil DI and lower absorbance value) and susceptibility in the F2 fitted a 3:1 Mendelian ratio, indicating that resistance were controlled by a single dominant nuclear gene. Nil segregation of the trait in the test crosses in BC1P1 and a 1:1 ratio segregation in BC1P2 also confirmed the 3:1 gene segregating model as found in the F2. Heritability values of the trait were medium to high.Key words : inheritance, resistance, ChiVMV, peppe