Jurnal Agroekoteknologi
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Pengaruh Konsentrasi Nutrisi AB MIX Terhadap Pertumbuhan dan Hasil Tiga Varietas Pakcoy (Brassica rapa L.) pada Hidroponik Sistem Sumbu
Full text linkThis study aimed to determine the effect of AB Mix nutrient concentration on the growth and yield of three varieties of pakcoy. This study was carried out form April to May 2024 at Manjun Village, Rancabuaya Village, Jambe District, Tangerang Regency, Banten Province. The study was structured in a Randomized Group Design with two factors. The first factor is the nutrient concentration of AB Mix consisting of three levels : P1= 15 ml/l, P2= 20 ml/l, and P3= 25 ml/l. The second factor is that the pakcoy variety consists of three levels: V1 = Pakcoy variety Nauli F1, V2 = Pakcoy variety Flamingo F1, and V3 = Pakcoy variety Emone-26. The study results showed that P1 treatment gave the best results in the parameters of plant height, plant fresh weight and root shoot ratio. The V3 treatment showed the best results in the parameter of plant height, while the V1 showed the best results in the number of leaves parameter. There was no interaction between AB Mix concentration and pakcoy varieties on all observed parameters. Gived AB Mix with a concentration of 15 ml/l can provide the best growth for pak choy plants. The Pakcoy Emone-26 and Nauli F1 varieties have the best plant growth
Uji Konsentrasi Ekstrak Biji Bintaro (Cerbera manghas L.) terhadap Mortalitas Scotinophara coarctata Fabricius pada Tanaman Padi Sawah
Full text linkRice is a staple food crop in Indonesia that contains nutrients such as carbohydrates, protein, fat, fiber, and vitamins. Efforts to increase rice production still experience obstacles such as Scotinophara coarctata Fabricius pest attacks which can cause yield losses of 35% if the reaches the economic threshold clump of rice plants. Plants that have the potential as botanical pestiside are bintaro plants (Cerbera manghas L). This research aims to obtain the concentration of bintaro (Cerbera manghas L) seed extract that is effective against Scotinophara coarctata Fabricius mortality. This research was conducted at the Laboratory of Plant Pests, and Experimental Garden of the Faculty of Agriculture, University of Riau, from December 2023 to March 2024, using a completely randomized design (CRD) consisting of 6 treatments and 4 replications. Treatment applications consists of concentrations of 0 g.l-1 water, 20 g.l-1 water, 40 g.l-1 water, 60 g.l-1 water, 80 g.l-1 water, and 100 g.l-1 water. The results showed that different concentrations had a significant effect on the mortality of Scotinophara coarctata. The concentration of 60 g.l-1 water is an effective concentration in controlling S. coarctata nymphs because it can cause total mortality of 80% with the initial time of death 18.50 hours after application and lethal time 50 at 58.25 hours after application
Evaluation of the Fertility Status of Irrigated Rice Fields in Relation to Rice Productivity (Oryza Sativa L.) in Debowae Village, Waelata District, Buru Regency, Maluku Province
Full text linkABSTRACTThis research examines the fertility status of irrigated rice fields in Debowae Village, Waelata District, Buru Regency, using a survey method for field work, taking composite soil samples diagonally in rice fields based on the history of fertilizer use and production data through interviews. The results of the research show that the fertility status of paddy fields in Debowae village based on chemical characteristics is low status with limiting factors including acid soil pH (5.29-5.51) to slightly acidic (5.80-5.89), low CEC (5.28-8.21me/ 100gram), C-organic low (0.53%) to low (1.17-1.67%) and N- low (0.18-0.20%) to moderate (0.21-0.24%). This had an effect on decreasing GKG production at the research location, namely 2.5-4.5 tons/ha, which means it is still relatively low when compared to national GKG production, namely 5.4 tons/ha. Therefore, the direction for balanced fertilizer management is based on the soil fertility status of the paddy fields at the research location, namely adding lime to increase soil pH, using organic material to increase soil C-organic and soil CEC, as well as using compound fertilizer using a combination of urea, NPK fertilizers. Ponska in supporting sustainable agricultural land. Key words: Soil fertility status, rice production, balanced fertilization.
Pertumbuhan dan Hasil Kentang G1 Melalui Modifikasi Media Tanam dan Aplikasi Zat Pengatur Tumbuh
Full text linkSuccess in cultivating potatoes is the use of good quality potato seeds. Good quality potato seeds are produced through several stages starting from in vitro culture to extension seed production. One of the important stages in potato seed production is the production of first generation (G1) potato seeds. Efforts to increase the yield of G1 tubers can be made through modifying the planting media and applying growth regulators. This research aims to produce G1 potato tubers by adjusting the composition of the planting media (cocopeat, cocofiber, charcoal husk) and applying a growth inhibitor (Daminozide). The research consisted of four series of experiments. Each experiment was carried out using a Completely Randomized Design (CRD) with six treatments, each repeated four times. Experiment 1 (a. Cocopeat 100% + 0% husk charcoal; b. Cocopeat 20% + 80% husk charcoal; c. Cocopeat 40% + 60% husk charcoal; d. Cocopeat 60% + 40% husk charcoal; e. Cocopeat 80% + Charcoal Husk 20%; f. Cocopeat 0% + Charcoal Husk 100%. Experiment 2 (a. Cocofiber 100%; b. Cocopeat 100%; c. Cocopeat 20% + Cocofiber 80%; d. Cocopeat 40% + Cocofiber 60%; e. Cocopeat 60% + Cocofiber 40%; f. Cocopeat 80% + Cocofiber 20%. Experiment 3 (a. Cocopeat + Cocofiber + husk charcoal (1 : 1 : 1); b. Cocopeat + Cocofiber + charcoal husk (1 : 1 : 2); c. Cocopeat + Cocofiber + husk charcoal (1 : 2 : 1); d. Cocopeat + Cocofiber + husk charcoal (2 : 1 : 1). Experiment 4 (a. Daminozide 0 ppm; b. Daminozide 500 ppm; c. Daminozide 1000 ppm; d. Daminozide 1500 ppm). From the research results it can be concluded: 1) The combination treatment of 80% cocopeat + 20% cocofiber is the best treatment combination in the vegetative growth phase; 2) Composition treatment 60% cocopeat + 40% husk charcoal is the best treatment for the growth and number of G1 potato tubers; 3) Treatment of the composition of the planting media with cocopeat, cocofiber, and husk charcoal with a composition of 1:1:1 produces the highest number of tubers; 4) The best concentration of daminozide for the growth and production of G1 potato seed tubers is 3500 ppm
Pengaruh Lama Pengomposan Terhadap Sifat Kimia Kompos Tandan Kosong Kelapa Sawit Dengan Inokulum Trichoderma, Azobacter, dan Limbah Cair Pabrik Kelapa Sawit
Full text linkOil Palm Empty Fruit Bunches (OPEFB) have only been used as organic fertilizer by placing it between plants without prior treatment, as a result, the decomposition process of OPEFB takes a long time and produces toxic ammonia. The composting process with variations in composting time and decomposer is a solution in utilizing OPEFB as compost with the best quality. The purpose of this study was to analyze the effect of composting time with Trichoderma sp, Azotobacter, and Palm Oil Mill Effluent (POME) inoculums on the quality of OPEFB compost. The study was structured using a 2-factor Randomized Block Design, which was repeated 3 times. The first factor was the variation of decomposers (Trichoderma sp, Azotobacter, POME) and the second factor is the composting time of 20 days, 40 days and 60 days. The observed parameters including temperature, pH, levels of N, P, K, C, and C/N. The data were statistically analyzed using Analysis of Variance (ANOVA) then further tested with the Least Significant Differences (LSD) test with 95% confidence level if significant effect occured. The treatment gave a significant effect on the levels of N, P and K in OPEFB compost. OPEFB compost had a temperature of 27.33 – 29.33°C, the highest N content was 0.7162%, P content was 0.2222% - 0.8423%, K content was 0.3953% - 0.9043% and C 20.19% - 25.66% which is in accordance with SNI 19-7030-2004 regarding compost quality. The value of the C/N ratio of OPEFB compost products produced from the all treatment was 29.86 – 98.66 so that it did not meet the compost maturity standard of 10 – 20. The production of OPEFB compost can be done with a longer composting time than the treatment in the study, in order to increase maturity value.Keywords: Compost; Composting time; Decomposers; OPEF
Pengaruh Perlakuan Skarifikasi Fisik dan Lama Perendaman Air Kelapa Terhadap Viabilitas Benih Sirsak (Annona muricata L.)
Full text linkThis research was aimed to know the effect of Physical Scarification and Soaking Time of Coconut Water to Viability of Soursop Seed (Annona muricata L.). This research was carried out from March until April 2022 at the Greenhouse of Faculty of Agriculture University of Sultan Ageng Tirtayasa. The research used a Completely Randomized Design (CRD) consisting of two factors. The first factor was the physical scarification, which consists of 3 levels namely S0 (Without scarification), S1 (Sanding one side of the seed), and S2 (Sanding two sides seed). The second factor was soaking time of coconut water, which consists of 3 levels namely L0 (Without soaking), L1 (Soaking time 12 hours), and L2 (Soaking time 24 hours). The combination of the two factors was repeated three times, so that 27 experimental units are obtained. The result showed that the scarification treatment with sanding one side of the seed (S1) gave the best effect on the parameters of germination age (18.22 days), maximum growth potential (58.89%), power of germination (55.56%), normal sprout (51.11%), growth rate (1.70%/day), and seeds that did not grow (44.44%). The soaking time of coconut water 24 hours (L2) gave the best effect on the parameters of germination age (17 days), maximum growth potential (61.11%), power of germination (63.33%), normal sprout (54.44%), growth rate (1.81%/day), and seeds that did not grow (38.89%). There was no interaction between the physical scarification and the soaking time of coconut water for all parameters of observed
MULTIPLIKASI TUNAS PADA DUA VARIETAS PISANG (Musa acuminata L.) DENGAN PEMBERIAN BEBERAPA KONSENTRASI SITOKININ
Full text linkThis study aimed to investigate how the application of various cytokinin concentrations affects the shoot multiplication in two varieties of banana (Musa acuminata L.). The research was conducted at the Plant Physiology and Biotechnology Laboratory, Faculty of Agriculture, Sultan Ageng Tirtayasa University. The study was designed as a randomized complete block design, consisting of two factors. The first factor included two types of banana varieties: bagja (v1) and cavendish (v2). The second factor included six types of application of various concentrations of cytokinin, which were 1 mg/l BAP (k1), 2 mg/l BAP (k2), 3 mg/l BAP (k3), 1 mg/l kinetin (k4), 2 mg/l kinetin (k5), and 3 mg/l kinetin (k6). The results showed a significant difference in the effect of cavendish banana varieties explant on the height of the plant, with an average value of 3.26 cm. The application of various concentrations of cytokinin didn’t significantly affect the parameters of the height of the plant, shoot emergence time, number of shoots, and time of root emergence.Keywords: Bagja, Cavendish, Cytokinin, In Vitro Cultur
Aplikasi Pupuk Hayati Diperkaya Biosurfaktan Dietanolamida Olein Sawit dengan Interval Waktu yang Berbeda pada Bibit Kakao (Theobroma cacao L.)
Full text linkThe purpose of this research was to analyze the effects of biofertilizer enriched dietanolamide biosurfactan by palm oil at different time intervals on the growth of cacao seeds (Theobroma cacao L.). This research was conducted on the land of the Integrated Agricultural System area, Serang City, Banten Province. From December 2020 to March 2021. This study used a factorial Randomized Block Design. The first factor is the interval of application time, which as three levels : once every seven days, once every fourteen days, and once every twenty-one days. The second factor is the dose of biofertilizers plus DEA biosurfactant with palm olein at four levels : 10 ml / seed + 5% biosurfactant, 10 ml / seed + 10% biosurfactant, 20 ml / seed + 5% biosurfactant, and 20 ml / seed + 10% biosurfactant, Each treatment was repeated three times in order to obtain thirty-six experimental units. The parameters measured were plant height, number of leaves, stem diameter, plant dry weight, and root canopy ratio. The results showed that the treatment time interval of once every fourteen days had an effect on the number of leaves at 4 WAP (Week After Plant). While the treatment of the dosage of biofertilizers plus 20 ml of palm olein DEA biosurfactant / seed affected the parameters of the number of leaves at 4 and 8 WAP, there was an interaction on plant height at 2 and 4 WAP, number of leaves at 4 and 8 WAP, stem diameter at 12 WAP, and dry weight.
Efek Penggunaan Metabolit Sekunder Trichoderma harzianum terhadap Penyakit Busuk Buah Phomopsis, Hama Perusak Daun Epilachna, dan Hasil Tanaman Terung
Full text linkUpaya peningkatan produktivitas terung seringkali terkendala kerusakan tanaman oleh serangan fitopatogen dan hama. Pemanfaatan metabolit sekunder agens hayati untuk pengendalian fitopatogen dan hama perusak pada tanaman, merupakan cara pengendalian yang ramah lingkungan. Penelitian ini bertujuan untuk mendapatkan konsentrasi metabolit sekunder Trichoderma harzianum yang efektif untuk mengendalikan penyakit busuk buah Phomopsis vexans dan hama perusak daun Epilachna, serta untuk meningkatkan produksi terung. Perlakuan yang dicobakan adalah metabolit sekunder T. harzianum dengan konsentrasi 0%, 10%, 20% dan 30%. Hasil penelitian menunjukkan bahwa perlakuan metabolit sekunder T. harzianum menekan penyakit busuk buah Phomopsis, tetapi tidak berpengaruh terhadap kerusakan daun Epilachna. Pengobatan dengan konsentrasi 10%, 20% dan 30% masing-masing dapat menurunkan intensitas penyakit 51.65%, 64.25% dan 69.63%. Kerusakan daun oleh Epilachna sp tergolong ringan untuk semua tingkat konsentrasi yakni berkisar 3.65-4.32%. Perlakuan metabolit sekunder T. harzianum dengan berbagai tingkat konsentrasi berpengaruh terhadap panjang buah tetapi terhadap jumlah buah, diameter buah, dan berat buah tidak berpengaru
Optimalisasi Jarak Tanam Terhadap Peningkatan Produksi Hanjeli Pulut (Coix lacrima-jobi L.) pada Lahan Tidur
Full text linkUtilizing idle land as agricultural land is one option that can be pursued to support national food security and independence. Indonesia has various types of alternative food commodities that have the potential to be developed on nutrient-poor land, one of which is hanjeli. Technical cultivation is needed to increase the growth and yield of hanjeli on sub-optimal land. This study aims to determine the best planting distance to increase hanjeli production on idle land. The research was conducted from October 2020 - March 2021 in Limau Manis, Padang City, West Sumatra. The materials used in this study were rice cultivar hanjeli seeds, manure (20 tons/ha) and NPK fertilizer (200 kg/ha). The experimental design used was Randomized Group Design with 3 groups and consisted of 8 plant spacing treatments (40 x 40 cm, 50 x 40 cm, 50 x 50, 50 x 60 cm, 50 x 70 cm, 50 x 80 cm, 50 x 90 cm, and 50 x 100 cm). Observation data were analyzed statistically to determine the influential treatment using the F test at the 5% level and significantly different data were tested using the Duncan’s Multiple Range Test at the 5% level. It was concluded that the spacing of 50 x 70 cm, 50 x 80 cm, 50 x 90 cm and 50 x 100 cm gave the best effect on the number of total tillers/plant, the number of productive tillers/plant, the number of seeds/plant, the percentage of filled seeds, the weight of filled seeds/plant. As for productivity, the spacing of 50 x 80 cm gave the best results