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Jurnal Agronomi Tanaman Tropika (JUATIKA)
Published by Universitas Islam Kuantan Singingi
ISSN : 2684785X     EISSN : 26561727     DOI : https://doi.org/10.36378/juatika.v7i1
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Agronomi Tanaman Tropika (JUATIKA) contains original articles of research, review article/literature review in Agronomy, Plant Protection, and Soil Science
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Agronomi dan Ilmu Tanaman
Articles 156 Documents
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Ant Community Structure in Palm Oil Plantation Bordering Secondary Forest Arlen Hasan; siska efendi; Yaherwandi Yaherwandi; Awaluddin Awaluddin
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol 5 No 1 (2023): Vol 5 No 1 (2023): Jurnal Agronomi Tanaman Tropika (JUATIKA)
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v5i1.2686

Abstract

Deforestation or functional change from forest to non-forest plays a role in changing ecosystems and species within it. Insects as one of the faunas in it is an interesting aspect to be studied, especially ants. The research was conducted in Nagari Gunung Selasih and Sungai Kambut, Pulau Punjung District, Dharmasraya Regency, West Sumatra from November 2017 to January 2018. This study aims to determine the diversity of ants in the palm oil plantation ecosystem bordering the forest ecosystem. This research takes the form of a survey where the Purposive Random Sampling method was used for points sampling. Hand Collecting, Bait Trap, and Pitfall Trap sampling methods were applied for each plant. Identification of the samples obtained was carried out at the Animal Taxonomy Laboratory, Department of Biology, Faculty of Mathematics and Natural Sciences, Andalas University, Padang. Total ants (Hymenoptera: Formicidae) collected during the study were 3,046 individuals consisting of 5 subfamilies, 15 genera, and 29 species. The most dominant species was Anoplolepis graciliphes, followed by Odontoponera denticulate and Odontomachus simillimus. Based on the results of the study, it can be concluded that the level of abundance and diversity of ant species is not directly affected by the distance from the forest ecosystem, but it is strongly influenced by the composition of environmental factors such as temperature, humidity, light intensity, altitude, and management of existing habitats and vegetation.
Application Of Potassium Fertilizer And Organic Fertilizer For Rabbits On The Growth And Years Of Okra (Albemoschus Esculentus L) Mukhtar Yusuf; Fitria Fitria; Risnawati Risnawati; Rini Susanti; M Alqamari; Hadriman Khair; Alridiwirsah Alridiwirsah
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol 5 No 1 (2023): Vol 5 No 1 (2023): Jurnal Agronomi Tanaman Tropika (JUATIKA)
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v5i1.2716

Abstract

Okra (Albemoschus esculentus L) is a fruit-shaped vegetable crop and is a potential crop because it has business opportunities. Okra production is still low and has not been able to meet the needs of one of the problems, namely inappropriate fertilization. It is necessary to conduct research that aims to determine the effect of Potassium fertilizer and organic rabbit fertilizer on the growth and yield of okra. The research location is in Sampali Village, Percut Sei Tuan District, DeliSerdang Regency, North Sumatra Province. When the research was carried out in February-May 2021, the materials used were okra seeds, potash fertilizer and rabbit manure. The research method used a factorial Randomized Block Design (RBD) with two treatments and three replications of Potassium (K), namely: K0: without K fertilizer, K1: 5 g/plot, K2: 7.5 g/plot, K3: 15 g/plot while rabbit organic fertilizer (P), namely: P0: without rabbit organic fertilizer, P1: 1 kg/plot, P2: 1.5 kg/plot, P3: 2 kg/plot. The results showed that for observation the number of fruits per plant had no significant effect but gave the best results on Potassium 15 g/plot and organic fertilizer for rabbits P3: 2 kg/plot while Potassium fertilizer had a significant effect on stem diameter and flowering age while organic fertilizer for rabbits had a significant effect on plant height this is because Potassium fertilizer functions to strengthen stems, physiological processes, formation of flowers and fruit. While rabbit organic fertilizer contains nitrogen which plays a role in the vegetative phase for plant growth.
Utilizing Compost Soil Conditioner in Beach Sand Soil as a Palm Oil (Elaeis guineensis Jacq) in Pre-nursery Media Sri Suryanti; Ryan Firman Syah; Ichan Al Hafish
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol 5 No 1 (2023): Vol 5 No 1 (2023): Jurnal Agronomi Tanaman Tropika (JUATIKA)
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v5i1.2464

Abstract

The objective of this study was to assess the effect of the type and dose of compost on the growth of oil palm seedlings in pre nursery with coastal sandy soil. The other objective is to know the effect of the type of compost on the growth of oil palm seedlings in pre nursery with coastal sandy soil. Lastly, the study examines the right dose of compost that provides the best growth of oil palm seedlings in pre nursery with coastal sandy soil. The experimental design was set in a factorial completely randomized design (CRD) consisting of two factors from April to June 2020 at the Tridharma Research Station Faculty of Agriculture, INSTIPER. The first factor is the type of compost which consists of 2 levels, Lamtoro compost, and vermicompost. The second factor is the dose of compost consisting of 4 levels: control (without compost), 50 gr compost/polybag, 75 gr compost/polybag, and 100 gr compost/polybag. The research data were analyzed using analysis of variance (α =0,05), and if there was a significant effect, it was continued with the Duncan multiple range test ( α = 0,05). Parameters observed included seedling height, total leaf, leaf width, stem diameter, shoot dry weight, root dry weight, root length, and total roots. The results showed that no combination of types and doses of compost significantly affected the growth of oil palm seedlings in pre-nursery. Using vermicompost can significantly increase oil palm seedlings' leaf area and root dry weight. Using compost at a dose of 50 g/polybag increased seedling height, stem diameter, and root dry weight in pre-nursery of oil palm seedlings.
Optimization Of Composting Time from Palm Fronds and Empty Buttons Of Palm Oil (Elaeis guineensis Jacq) with Various Bioactivators Ali Mustafa Silalahi; Ryan Firman Syah; Pauliz Budi Hastuti
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol 5 No 1 (2023): Vol 5 No 1 (2023): Jurnal Agronomi Tanaman Tropika (JUATIKA)
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v5i1.2665

Abstract

Composting or decomposition is a method of processing solid waste which has a high content (70% -80%). Empty fruit bunches from the processing of Crude Palm Oil Factories and fronds of palm oil (TM) plants have the potential to be used as organic fertilizer. Composting without a decomposer takes a long time of seven months, so a bio activator is needed to speed up the process. Research with the aim of determining the influence of various bio activators in accelerating the composting of palm fronds and empty bunches has been carried out at PT. Bahana Karya Semesta unit of Sungai Air Jernih Estate, Pauh, Sarolangun, Jambi in November 2021-February 2022. The Research method used was a Complete Randomized Design (RAL) with two factors. The first factor is bioactivator consisting of four types such as LCPKS (liquid waste from crude palm oil factory), MOL (Local microorganism), EM4 (Effective microorganism 4) and cow dung. The second one is the compost material consisting of empty fruit bunch/EFB (5 kg), fronds (5 kg), EFB + fronds (2.5 kg + 2.5 kg), EFB + fronds + LCC (legume cover crop) (2 kg + 2kg + 1kg). C/N ratio, temperature, campiness, shrinkage, crumbly, and color of compost were also recorded. The results showed that the bio activator could decompose organic material with some of the parameters that we measured. The analysis of the C/N ratio showed that each treatment gave different results. Palm fronds + LCPKS had the highest C/N ratio of 91, meanwhile, the combination of EFB+cow dung showed the lowest C/N ratio of 23. The material of EFB + fronds + LCC showed the highest pH value of 6.36 and the highest compost depreciation of 57.48%. The variety of compost material has the same influence on the temperature, campiness, and color of the compost. Meanwhile, the type of bio activator had the same effect on temperature, pH, shrinkage, crumbly, and color of the compost.
Total Biomass of Palm Oil in Agroforestry Systems Palm Oil (Elaeis Guineensis Jacq) With Gaharu (Aquilaria Malacensis Lamk.) and Palm Oil Monoculture System (Elaeis Guineensis Jacq.) Khaerul Basyar; Wawan Wawan; Nurul Qomar
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol 5 No 1 (2023): Vol 5 No 1 (2023): Jurnal Agronomi Tanaman Tropika (JUATIKA)
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v5i1.1410

Abstract

This study aimed to compare the total biomass of oil palm in oil palm and gaharu agroforestry systems with oil palm monoculture systems. This research was conducted in February 2020 - April 2020 on agroforestry land (1 ha) and monoculture land (1 ha) located in Bukit Kemuning, Kampar - Riau. The method used in this study is a survey method and systematic sampling and determination of sample plots using the zig-zag method. The results of this study indicate that the microclimate is the light intensity in the agroforestry system ranging from 2,672 lux - 10,928 lux and in the monoculture system 3,023 lux - 12,065 lux, the air temperature in the agroforestry system is 27.1oC - 29.8oC and in the monoculture system it ranges from 27, 0oC – 31.8oC and air humidity in agroforestry have a value of 73% - 88% and in monoculture systems, the value ranges from 70% - 80%. The total weight of oil palm plant biomass in the oil palm and gaharu agroforestry system was 4,502.49 kg with an average total biomass of 52.11 tonnes/ha. In the monoculture system, the total weight of biomass in the monoculture system is 4,402.01 kg with an average total biomass of 50.95 tonnes/ha. The results of the 5% level t-test showed that the total weight of oil palm plant biomass in the agroforestry system of oil palm and agarwood plants was not significantly different compared to the total biomass of oil palm plants in the monoculture system. The presence of gaharu plants in the oil palm agroforestry system does not affect the total oil palm biomass on the land.
Controlling Spodoptera exigua Using Parasitoid Trichogramma japonicum in Acacia Nurseries (Acacia crassicarpa) at Kerinci Central Nursery PT. Riau Andalan Pulp & Paper Betti Andriany Sirait; Rusli Rustam; Hafiz Fauzana
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol 5 No 1 (2023): Vol 5 No 1 (2023): Jurnal Agronomi Tanaman Tropika (JUATIKA)
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v5i1.1659

Abstract

Armyworm (Spodoptera exigua Hubner.) is the main pest of acacia. Controlling such pests generally uses synthetic insecticides, which cause negative impacts such as they would resistance & resurgence, environmental pollution, residual effects, secondary pest explosions, and reduced biodiversity. We need an alternative in pest control, such as using parasitoid Trichogramma japonicum. This study aims to test the parasitism after the release of Trichogramma japonicum on Spodoptera exigua eggs in Acacia crassicarpa nurseries. The research was carried out at the Kerinci Central Nursery PT. RAPP on October 2019-March 2020. The research started with exploring, rearing and releasing parasitoid Trichogramma japonicum. The treatment was plotted with and without releasing Trichogramma japonicum on Spodoptera exigua eggs for seven days of observation and analyzed using T-test at a 5% level. The significance of Trichogramma japonicum parasitized eggs in Spodoptera exigua eggs was 41.9% after releasing parasitoids in Acacia crassicarpa nurseries. The highest parasitization by Trichogramma japonicum was in the 3rd plot with an average parasitization of 53.8% and the lowest was in the 1st plot with an average 31.3% parasitization. Trichogramma japonicum that emerged from the total mass of eggs brought to the laboratory after parasitized eggs were 14.2%. Trichogramma japonicum showed significantly different results in reducing the egg population of Spodoptera exigua in the mother plant nursery Acacia crassicarpa.
A Review Simplicillium Lanosoniveum, Prospects as Biological Control Agents in Indonesia ambar susanti; Anton Muhibuddin; Zulfikar Zulfikar; Hardian Susilo Addy
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol 5 No 1 (2023): Vol 5 No 1 (2023): Jurnal Agronomi Tanaman Tropika (JUATIKA)
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v5i1.2577

Abstract

Simplicillium lanosoniveum is a species of Simplicillium, included in the Cordycipitaceae. This fungus is known to have a dual role as an entomopathogen against insect pests and antagonist against disease pathogens in plants. There are no reports on the negative impact of S. lanosoniveum as biological control. In Indonesia, the research on the two roles of S. lanosoniveum is still limited. Therefore, it is necessary to study the potential of these fungi to be worthy of analysis, based on the results of previous research. The purpose of this study is to provide information about the potential of Simplicillium lanosoniveum as an entomopathogenic fungus and antagonist against plant fungal pathogens, which has various characteristics of pests and diseases in tropical regions.It is hoped that it can increase the diversity of fungi that act as biological agents in Indonesia, in an effort to suppress the use of chemical pesticides.
Intensity Of Soil Treatment And Frequency Of Inorganic Fertilizer Application On Nutrient Levels And Growth Of Palm Oil (Elaeis guineensis Jacq) At The Replanting Stage Hendra Pangondian Sihaan; Wawan Wawan; M. Amrul Khoiri
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol 5 No 1 (2023): Vol 5 No 1 (2023): Jurnal Agronomi Tanaman Tropika (JUATIKA)
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v5i1.2833

Abstract

Oil palm is a plantation crop that produces vegetable oil, and people highly need it, so it requires efforts to increase its production. One way is by utilizing existing land without having to open new oil palm plantation areas with replanting. This study aimed to analyze the effect of fertilization frequency on different tillage and to get the best fertilization frequency on different tillage on leaf nutrient levels and growth of oil palm plants. This research experimented with a split-plot design (SPD) with a randomized block basic design. The factors tested in this study consisted of the main plot, e.g., tillage (No tillage, 1 time of tillage, 2 times of tillage) and subplots, e.g., the fertilization frequency (D1: 5 times frequency of NPK fertilization D2: 4 times frequency of NPK fertilization D3 : 3 times frequency of NPK fertilization). The two factors were combined, and 12 treatment combinations were obtained. Each treatment combination consisted of 3 groups, totaling 36 experimental units. Each experimental unit consisted of 2 plants, so 72 plants were obtained. The data obtained were analyzed using variance and further tested with the honest significant difference test (BNJ) at the 5% level and advanced test analysis using the Satker application (SAS). This study showed that NPK fertilization with a frequency of 2 times in 2 times tillage increased vegetative plant growth (increased stem circumference). The main plot of tillage two times increased leaf nutrient content (leaf N content) and plant vegetative (plant height gain and stem circumference increase). NPK fertilization with a frequency of 2 times increased plant growth (increased stem circumference).
Increasing The Growth And Production Of Sweet Corn (Zea mays saccharata) by Giving Chicken Manure And Vegetable Waste Liquid Organic Fertilizer Novia Septiani Sinaga; Devi Andriani Luta; Ruth Riah Ate Tarigan
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol 5 No 2 (2023): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 5 No. 2 Juli 2023
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v5i2.3111

Abstract

Applying organic fertilizers can improve the physical and biological properties of the soil. One of the organic fertilizers that can be used is chicken manure with the addition of POC vegetable waste. This study aims to determine the effectiveness of applying organic chicken manure and POC vegetable waste on the growth and production of sweet corn (Zea mays Saccharata). This study used a factorial randomized block design (RBD) consisting of 2 factors with 16 combinations and 3 blocks. The first factor is the application of organic chicken manure (A), which consists of 4 levels. 0 g/plot, 700 g/plot, 1400 g/plot, 2100 g/plot. The second factor is the provision of POC of vegetable waste (S) which consists of 4 levels, namely, 0 ml/liter of water/plot, 300 ml/liter of water/plot, 500 ml/liter of water/plot, 700 ml/liter of water/plot.The parameters observed were plant height (cm), number of leaves (strands), cob length (cm), cob diameter (cm) and production weight using klobot per plot (g). The results showed that the application of organic chicken manure had a significant effect on Production weight parameters used husks per plot (g) and had no significant effect on plant height (cm), number of leaves (strands), cob length (cm) and cob diameter (cm).
Increasing the Growth and Quality of Oil Palm Seeds (Elaeis guineensis Jacq) by Selecting the Position of Fruit Bunches and Dormancy Breaking Methods Mansur Siregar; Devi Andriani Luta; Najla Lubis
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol 5 No 2 (2023): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 5 No. 2 Juli 2023
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v5i2.3112

Abstract

Oil palm reproduces by seeds and will germinate to grow further into plants. This study aims to determine the effect of the position of fruit bunches and various methods of breaking dormancy on the germination of coconut seeds palm. This study used a completely randomized design (CRD) factorial consisting of 2 factors with 18 combinations and 2 replications. The first factor is the position of the fruit on the oil palm bunch which consists of 6 positions of the fruit bunch, as follows: the base of the inner fruit bunch (PT), the base of the outer fruit bunch (PL), the middle of the inner fruit bunch (TD), the middle of the inner fruit bunch outer (TL), inner fruit bunch tip (UD), outer fruit bunch tip (UL) The second factor is various methods of breaking dormancy with the symbol (P), namely Ecoenzyme Soaking (P1), Gibberellin Soaking (P2), oven system ( P3). Parameters observed included germination rate (%), percentage of normal sprouts (%), percentage of abnormal sprouts (%), radicle exit age (days), plumule exit age (days), radicle length (cm) and plumule length (cm). The results showed that the position of the oil palm fruit bunches and the dormancy breaking method gave a significant response to the germination parameters of 53.33% (fruit bunches) 49.33% (oven system), normal germination percentage 43.33% (fruit bunches) 38.89% (oven system), radicle exit age 36 days (bundle position) 37.17 days (oven system), plumule exit age 54.67 days (fruit bunches) 59.25 days (oven system), radicle length 1.98 cm (bunch position) 1.60 cm (oven system), and plumule length 1.78 cm (bunch position) 1.42 cm (oven system) and gave no significant response to the percentage of abnormal sprouts (%). The best treatment was the position of the deep base fruit bunches and oven system

Page 12 of 16 | Total Record : 156

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