Jurnal Agroekoteknologi
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UJI DAYA ADAPTASI BEBERAPA VARIETAS BAWANG PUTIH (Allium sativum L.) DI KABUPATEN PESISIR SELATAN
Full text linkGarlic (Allium sativum L.) is one of the important commodities in the horticultural sub-sector which is one of the basic needs of the community that must be fulfilled. However, garlic production in Indonesia has not been able to meet the demands of society's needs. For this reason, an additional area of land for garlic development is aimed at the optimal suitability of environmental physical factors. The use of superior varieties is one of the technologies that play a role in increasing the productivity of garlic. This research was conducted in May - August 2020 in Tarusan and Muaro Aie Bayang Utara, Pesisir Selatan Regency, West Sumatra Province with a randomized block design using Lumbu Hijau, Lumbu Kuning and local varieties of Bukik Sileh Solok as treatment. The results showed that the varieties of Lumbu Kuning and Lumbu Hijau were able to adapt well in Muaro Aie with an altitude of 322 masl compared to Tarusan with an altitude of 4 masl. Both varieties gave a fairly good growth response and yield, although only half of the description of these varieties.
EFEK PEMANGKASAN AKAR DAN PEMANGKASAN PELEPAH TERHADAP KUALITAS HASIL MINYAK KELAPA SAWIT (ELAEIS GUINEENSIS JACQ) PADA UMUR YANG BERBEDA
Full text linkEfforts to intensify oil palm (Elaeis guineensis Jacq.) are needed to increase productivity close to the actual production potential of oil palm crops. The productivity and growth of oil palm is partly controlled by the relationship between the top of the plant (the leaf) and the bottom of the plant (root). This study aims to find out the effect of root pruning and the number of fronds on the growth, production and quality of oil palm products. The research was conducted for 12 months from February 2018 to January 2019 in gardens owned by the community of Petapahan Village, Tapung District of Kampar Regency, Riau. The research was conducted experimentally using split plot design which is grouped based on different plant age (5 years, 10 years and 15 years). The main plot is the pruning of oil palm, Normal, Light, and Heavy fronds. The plot is trimming the roots of oil palm 75%, 50% and 25%. The results showed that root pruning and the number of fronds did not affect the interaction of observational premeters. Pruning the roots independently gives a noticeable influence on the content of mesocarp oil. Self-trimming of the fronds has a real effect on the total increase in oil. Plant life has a noticeable effect on enhancement, total oil, mesocarp oil and free fatty acids
EFEKTIVITAS EKSTRAK DAUN SUREN (Toona sureni Merr.) DALAM PENGENDALIAN HAMA LALAT BUAH (Bactrocera dorsalis) PADA BUAH CABAI (Capsicum annuum L.)
Full text linkBactrocera dorsalis is a very harmful pest for fruit and vegetable. Chemicalcontrol of these pests has raised another problem. The use of surian leaf extractcan be a good and environmentally friendly alternative control. This study aims to determine the effect of the administration of vegetable pesticides from suren leaf extract in the control of B. dorsalis on red chili. This research had been carried out at Siliwangi University and BBPOPT, Karawang in July to August 2019. This study used a Completely Randomized Design (CRD) with six replications. The concentration of suren leaf extract were : 0%, 0.025%, 0.05%, and 0.1%. The results showed that chili fruit extracts with the highest 0.1% consistently could reduce the number of larvae and the number of fruit attacked. The maincompounds contained in the surian leaf extract include 9,12-Octadecadienoic acid (Z, Z) -, phytol, acetate, phenol, 2-methyl-5- (1,2,2-trimethylcyclopentyl) -, (S) -, Cedren-13-ol, 8-, and 3,7,11,15-Tetramethyl-2-. These compounds were thought to be strong compounds that play a role in suppressing the number of larvae and the number of fruit attacked
PEMBERIAN ABU SEKAM PADI DAN FOSFAT ALAM PADA MEDIUM ULTISOL UNTUK MENINGKATKAN PERTUMBUHAN DAN HASIL PADI GOGO (Oryza sativa L.)
Full text linkABSTRACTRice as a staple food for most of Indonesia's population,their needs increase withincreasing population, conversely production decreases. One effort to meet theneeds of rice is by planting upland rice in dry land. Ultisol is the most extensivedry land in Indonesia. The yield of upland rice in Ultisol is very low, this iscaused by various problems including acid reaction, high Al saturation and Pfixation, availability of macro nutrients (N, P, K, Ca, Mg), low micro nutrients(Mo). Rice husk ash and natural phosphate can be used to increase pH andnutrient availability. The purpose of study was to study the effect of the interaction of rice husk ash and natural phosphate in increasing the growth andyield of upland rice (Oryza sativa L.) on Ultisol medium. The study was conducted at the Faculty of Agriculture greenhouse, University of Riau fromMarch to July 2019. The research was an experiment in the form of a 4x3 factorial using a completely randomized design. The first factor consists of four levels of rice husk ash (0.0; 1.5; 3.0; and 4.5 tons ha-1), the second factor of natural phosphate consists of 3 levels (0, 25 and 40 kg P2O5 ha-1), each repeated three times. The results showed the interaction between rice husk ash with a dose of 1.5 tons ha-1 and natural phosphate with a dose of 25 kg P2O5 ha-1 increased plant height, number of productive tillers, panicle length, number of paddy grains with pan, paddy grains and dry grain weight milled compared without rice husk ash and natural phosphate, each of these parameters tends to increase higher at the highest dose (4.5 tons ha-1 rice husk ash and 40 kg P2O5 ha-1 natural phosphate).
SELEKSI FENOTIPE DAN MOLEKULER GALUR GALUR PADI (Oryza sativa L.) LOKUS PUP1 DAN ALT PADA LARUTAN HARA YOSHIDA
Full text linkABSTRACTThis research aimed to selection the phenotype and molecular of rice lines (Oryza sativa L.) containing Pup1 and Alt loci at various concentrations of Al and P elements in yoshida nutrient solution. This research was conducted from November 2018 to February 2019 at The Indonesian Center for Agricultural Biotechnology and Genetic Resources Research and Development Bogor. The phenotype study used a Split Plot Design with two factors and repeated three times. The first factor was the variation of Al×P concentrations consisting of eight levels and the second factor was the variation of rice lines consisting of twenty levels. The molecular study used three primers to detect the rice lines with Pup1and Alt loci. The results of the Yoshida nutrient solution showed that the A4 level of Al×P concentrations (0 ppm of Al×15 ppm of P) had the best average of other levels. In rice lines with Pup1 loci G4 [10B (B4-SK4)] showed the highest average on the root dry-weight parameters. In rice lines with Pup1 and Alt loci G11 [35(21(B15)-3] showed the highest average on the root dry-weight parameters at the A2 level of Al×P concentrations (0 ppm of Al×5 ppm of P) for Pup1 loci and A6 level of Al×P concentrations (60 ppm of Al×5 ppm of P) for Alt loci. In the molecular study, three primers can detect the rice lines that contained Pup1 and Alt loci. K46-2 specific primer detected the Pup1 loci with thecomparison of Kasalath rice variety. RM12031 and RM1361 primers detected the Alt loci with the comparison of Dupa rice variety.
KARAKTERISTIK SIFAT KIMIA DAN KONDISI MIKROBA TANAH PADA LAHAN PERKEBUNAN NANAS (Ananas comosus) DENGAN TINGKAT PRODUKSI YANG BERBEDA
No full textPineapple cultivation activities that have been carried out over the years result in diminished soil fertility quality. This can be caused by the use of fertilizers and pesticides used in each pineapple cultivation cycle. Soil microbial activity, microbial biomass, organic C, and soil nutrient conditions are indicators of soil hygiene by the biochemical processes associated with nutrient cycles, especially nitrogen and organic matter content. The purpose of this research was to know how the characteristics of soil chemical properties and total microbial on land that has received fertilizer treatment during planting process. The location of the soil sampling was based on the difference of production level ie 9 blocks of land location consisting of 6 blocks of low production site location and 3 blocks of high production land. Each block of production site land, soil samples were collected by 9 soil samples and composite into one sample. Research data was analyzed by T test and correlation. From the results of the research on the land with different production results, it was found that only the P and N content of elements with significant value <0.05 of the rest was no significant value, although it was not mean that microb and other soil chemical properties have no role to plant growth. Because in every process of growth was influenced by many supporting factors.Keywords: Chemical characteristics, Soil microbes, Nutrient elemen
PENGARUH GULMA TERHADAP KOMPONEN FISIOLOGI BEBERAPA KULTIVAR KEDELAI (Glycine max (L.) Merr.)
Full text linkABSTRACTThe research aims to identify the effects of weed on the physiology components ofsoybean cultivars. This field research is arranged using spit plot with three blocksas the repetition where the main-plot is the weed treatments and those are weedfree, weeding in a critical period, and weedy. Sub-plot is the soybean cultivarswhich are Anjasmoro, Argomulyo, Burangrang, Gema, Gepak Kuning, Kaba, andWilis. The research’s result show the weed treatments would effect no significantdifference in the chlorophyll content, rate of photosynthesis, and carbon dioxide onleaf parameters
PEMANFAATAN KOMPOS TANDAN KOSONG KELAPA SAWIT DENGAN BAKTERI SELULOLITIK DAN LIGOLITIK SERTA NPK TERHADAP PERTUMBUHAN BIBIT KAKAO (Theobroma cacao L.)
Full text linkABSTRACTCocoa (Theobroma cacao L.) is one of the large plantations after oil palm. Theincrease in cocoa nursery can be accompanied by the utilization of waste derivedfrom palm oil, namely oil palm empty fruit bunches (OPEFB). oil palm emptyfruit bunches can be useful as organic fertilizer because it can improve soilphysical, chemical and biological properties. The use of OPEFB as organic fertilizer will also reduce excessive use of NPK. Utilization of OPEFB into organic fertilizer can be in the form of compost or raw OPEFB organic matter plus cellulolytic and lignolytic microbes. This study aims to determine the effectof NPK fertilizer and OPEFB compost on the growth of cocoa seedlings. Thisresearch was conducted experimentally using a completely randomized designconsisting of nine treatments and three replications. Parameters of observationwere plant height, stem diameter, number of leaves, root canopy ratio, dry weight of seedlings and age of planting. The results showed that the provision of 100 g polybag-1 OPEFB compost plus 50% NPK fertilizer (2 g polybag-1) could provide good growth in cocoa seeds (Theobroma cacao L.)
Pertumbuhan dan Hasil Tanaman Kangkung Darat pada Media Tanam Kascing dengan Takaran yang Berbeda
Full text linkABSTRACTExperiments were carried out to determine the effect of vermicompost media onthe growth and yield of land kale plants located in Sukasari, Tanjungsari, Sumedang, West Java Provinces from September to October 2018. It was conducted using a randomized block design consisting of five treatments and five replications, while the treatment consisted of A = 0.0 kg vermicompost + 2.0 kg soil, B = 0.5 kg vermicompost + 1.5 kg soil, C = 1.0 kg vermicompost + 1.0 kg soil, D = 1.5 kg vermicompost + 0.5 kg soil, E = 2.0 kg vermicompost + 0 kg soil. The results showed that giving vermicompost significantly affected plant height at the age of 29 HST, 36 HST, 43 HST, root length, shoot fresh weight, fresh weight, shoot/root ratio of plant at 43 HST. The use of vermicompost at a doses 1 kg kg-1 soil given the best effect than the other doses
PENGARUH LAMA PERENDAMAN DAN KONSENTRASI HORMON GA3 TERHADAP PERTUMBUHAN BENIH JATI DI PERSEMAIAN
No full textThis research was aimed to know the effect of the interaction between soaking time and the concentration of GA3 hormones that affect the vigor, and viability of seeds Teak (Tectona grandis Lf) in the nursery, as well as finding the length of time of immersion and the best hormone concentration GA3 on vigor, and viability of seeds teak in the nursery. Experiments Used A Randomized Block Design as factorial, which consisted of two factors: the length of immersion and concentration of GA3 hormones. The first factor was the length of immersion (W), consisting of four levels: w1 = Immersion 6 hours in GA3, w2 = Immersion 12 hours in GA3, w3 = Immersion 18 hours in GA3 and w4 = Immersion 24 hours in GA3. The second factor was the concentration of hormones GA3 (A), consisted of four levels: a1 = concentration of 250 ppm GA3 hormones, a2 = concentration of 500 ppm GA3 hormones, a3 = concentration of 750 ppm GA3 hormones, a4 = concentration of 1000 ppm GA3 hormones. The results showed that an interaction between the length of immersion and the concentration of the hormone GA3 on plant height aged 30, 45, 75 and 90 HST. Interaction treatment of fluid concentration of GA3 hormone and the best immersion time from observation of the best observation of the best plant that was combination of concentration 750 ppm with time of soaking 24 hours.Keywords: Seeds, quality, Giberalin hormone, Variability, Vigo