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Planta Tropika
Published by Universitas Muhammadiyah Yogyakarta
ISSN : 0216499X     EISSN : 25287079     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
PLANTA TROPIKA : Jurnal Agrosains (Journal of Agro Science) provides a forum for researchers on applied agricultural science to publish the original articles. PLANTA TROPIKA published two times a year (February and August) by Universitas Muhammadiyah Yogyakarta in collaboration with Indonesian Association of Agrotechnology / Agroecotechnology (PAGI). Planta Tropika focuses related to various themes, topics and aspects including (but not limited) to the following topics Agro-Biotechnology, Plant Breeding, Agriculture Waste Management, Plant Protection, Soil Science, Post Harvest Science and Technology, Horticulture.
Arjuna Subject : -
Articles 427 Documents
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Pemanfaatan Berbagai Sumber Pupuk Kandang sebagai Sumber N dalam Budidaya Cabai Merah (Capsicum annum L.) di Tanah Berpasir Prasetyo, Rendy
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 2, No 2 (2014)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2014.032.125-132

Abstract

The aim of the research was to examine the effects of various sources of manure as a nitrogen sources on the cultivation of red chili. The experiment was conducted using experimental methods which are arranged in Complete Randomized Design (CRD) comprised 4 treatments, namely 90 ton of cow manure per hectare, 60 ton of goat manure per hectare, 36 ton of chicken manure per hectare and standard fertilizers (1 ton NPK/hectare and 20 tons of chicken manure/hectare).The results showed that treatment of manure and standards provide similar effects to the real plant height, weight fresh fruit and fruit diameter,  but a significantly different effect on the weight of fresh and dry weight of plant biomass, number of fruits per plant, fruit lenght and production red chilies. Treatment of 90 tons of cow manure per hectare gave the bighest production of red chili that is 302.58 grams per plant, but did not differ significantly with treatment of 36 tons of chicken manure per hectare.
Pemakaian Pupuk Organik Cair Sebagai Dekomposer dan Sumber Hara Tanaman Padi (Oriza sativa L.) Isnawan, Bambang Heri; Utama, Nafi Ananda
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 3, No 2 (2015)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2015.045.94-99

Abstract

A research to determine the effects of liquid organic fertilizer as a decomposer and nutrition source on the growth of rice plant (Oriza sativa L.). This research was conducted in Wirokerten, Botokenceng, Bantul, Yogyakarta. Field experiment was  arranged using Randomized Completely Block Design with 2 factors and three replications. The first factor was liquid organic fertilizer, consist of liquid organic fertilizer and witout liquid organic fertilizer. The second factor was the doses of SRI, consist of 25% SRI, 50% SRI, 75% SRI and 100% SRI (urea fertilizer 350 kg/ha, 150 kg/ha of SP-36 fertilizer and 150 kg/ha of KCl fertilizer). The result showed that the liquid organic fertilizer with dose 10 l/ha macro fertilizer and 5 l/ha micro fertilizer were not significantly increased the growth and yield of rice plant. Liquid organic fertilizer with dose 75% SRI was significantly increased the leaf number than dose of 25% and 100% SRI. Doses 25% and 100% of SRI with application the liquid organic fertilizer was significantly increased the weight of 1000 seeds. Doses of SRI was not significantly increased the rice yield per hectar.
Identifikasi Lalat Buah yang Menyerang Buah Naga (Hylocereus sp.) di Kecamatan Batu Ampar, Kabupaten Tanah Laut Kalimantan Selatan Pramudi, Muhammad Indar; Rosa, Helda Orbani
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 4, No 2 (2016)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2016.063.107-111

Abstract

Identification of fruit flies of dragon fruit in Tanah Laut has never been conducted. This research was aimed to identify fruit flies species of dragon fruit and its natural enemies in Batu Ampar, Tanah Laut, Kalimantan Selatan. The fruit flies attacking dragon fruit in the field was collected. Observation was performed on the development of the larvae until adult and finally emerging adult was identified as well as its parasitoid. The result showed that the obtained fruit flies was Bactrocera dorsalis Hendel and Aceratoneuro myiaindica (Hymenoptera: Eulophidae: Tetrastichinae) was found as the parasitoid. Five predators was found as its natural enemies, namely red ants (Hymenoptera: Formicidae: Solenopsis), rangrang ant (Hymenoptera: Formicidae: Oecophylla), spiders (Arachnida), kumbang stafilinid (Coleoptera: Staphylinidae: Paederinae) and earwig (Dermaptera: Forficulidae: Forficula).
Kajian Formulasi Bacillus thuringiensis Dengan Carrier Limbah Cair Pabrik Kelapa Sawit Untuk Pengendalian Ulat Api (Setora nitens) Wahyuono, Dwi
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 3, No 1 (2015)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2015.036.24-30

Abstract

This research aims to examine palm oil effluent as a carrier for B. thuringiensis and its effectiveness against Setora nitens instar II-III in palm plantation. This research was held on April – December 2013 using single factor experiment method that has been arranging in completely randomized design (CRD). The research have two stages, first stage: development of B .thuringiensis and second stage: testing bioassay. First stage consist of three treatments that is 100%, 75%, 50% of Palm Oil Effluent and Luria Bertani Broth as a possitive control. Every treatment was added 0,4 g red sugar and 30 ml coconut water. the treatment in second stage same with first stage but use destilled water in addition treatment.  The parameter used are viability of B. thuringiensis, mortality (%), the speed of mortality, the change of population (%), and anti feedant (%). The result shown that palm oil effluent serve the purpose of alternative media of development B. Thuringiensis 7,6 x 107 CFU/ml. The optimal incubation period based of the toxcicity that is 48 hours. Formulation LCPKS 100% + 0,4 g red sugar + 30 ml coconut water + B. thuringiensis inclined more better based on the parameter of mortality, the change of population precentage, the speed of mortality amd anti feedant.
Evaluasi Ruang Terbuka Hijau di Kecamatan Sleman Kabupaten Sleman Nugroho, Vinda Catur
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 3, No 2 (2015)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2015.048.114-121

Abstract

The development of urban area gives negative impact on the environmental aspects, such as the decreasing of areas for green open space. Therefore, it is necessary to implement the research about evaluation of green open space. This research aims to evaluate availability, form and create green open space structuring model in the district of Sleman. The research was conducted by survey method which technical implementation was done by observation, questionnaires, and primary and secondary data collection. The choice of location observations made purposively. The data that has been collected was analyzed descriptively. The results of this research showed that the district of Sleman have public green open space which is less that 35.84 hectares or 1.14% of the area that 624.4 hectares, was referred to UU RI No. 26 year 2007. A green open space structuring model as a reference model to increased the value of aesthetic, functional and to increast the existing green open spaces in the district of Sleman can be done with the developing of city parks, city forests, roadside plants and water fountains that have a functional and aesthetic value.
Kajian Penggunaan Pupuk Organik pada Sistem Usahatani Bawang Merah di Serang Banten Purba, Resmayeti
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 4, No 1 (2016)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2016.049.1-6

Abstract

Yield of shallot bulbs in Banten still low because famers do not use organic fertilizers. This study aims to study the effectiveness of organic fertilizers combined with inorganic fertilizer on the growth and yield of shallot. This study was conducted in farmers’ fields in Sawahluhur village, district Kasemen, Serang. Studies used a randomized complete block design consisting of 5 treatments and 4 replications. The varieties used are Bima. The results showed that the use of organic fertilizers in combination with inorganic fertilizers provide a good influence on the growth and yield of shallots. The use of organic artificial fertilizer 5.000 kg//ha + Urea 100 kg/ha+ SP-36 200 kg/ha + 300 kg/ha NPK Phonska resulted in higher yield of tubers and profits than without organic fertilizer on shallots farming.
Pengaruh Pemberian Ekstrak Daun Sirih (Piper betle L.) untuk Mengendalikan Damping-Off pada Tanaman Cabai Capsicum annum) Hidayat, Taufiq; Supriyadi, Supriyadi; Sarjiyah, Sarjiyah
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 3, No 1 (2015)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2015.040.60-66

Abstract

Sclerotium roflsii is the causal agent of damping-off disease on pepper which difficult to control. The use of chemical pesticides cause several damage to the environment. The used of Piper betle leaves extract which is contains antifungal compounds becomes one of the solution. The aim of this study to obtain the optimum concentration of piper betle leaves extract and dipping periode of chili seed in leaves extract to control damping off disease caused by Sclerotium rolfsii. The study consists of two experiments. The first experiment was isolation and multiplication of damping off disease in chilli, this stage was conducted in laboratorium. The second experiment was performed to investigate effectivity of piper betle leaf extract to control damping off using dipping method, this stage conducted in Greenhouse. The study arranged in Completely Randomized Design (CRD) with single factor experimental design consist of 13 treatment, namely consentration of 0%, 40%, 60% and 80% Piper betle leaves extract (v/v) with 1 hour, 2 hour, and 3 hour dipping time. The result showed that Piper betle leaves extract of 60% with 1 hour dipping time had the best ability among the other treatment to control damping off disease cause of Sclerotium rolfsii in chili seedlings.
Identifikasi dan Distribusi Gulma di Lahan Pasir Pantai Samas, Kabupaten Bantul, Daerah Istimewa Yogyakarta Ilham, Junaidi
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 2, No 2 (2014)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2014.028.90-98

Abstract

A research on identification and distribution of weed on samas coastal, Bantul, DIY aims to get the types and distribution of weeds in the area of Samas sandy coastal, in recognition of the types and characteristics of weeds in fields Samas beach sand to ease in weed control. The research was conducted by survey method that the implementation techniques used the analysis of vegetation and interviews. Vegetation analysis to determine the dominant plant species, determine sample plots observation and further to identify weeds, observed variables in the identification of weeds is weed density, frequency of weeds, weed dominance, coefficient of community (C) and SDR (summed Dominance Ratio). Data from the analytic vegetation result in the form of quantitative data were further analyzed using analysis of variance. Interviews were conducted to obtain information about weed control that usually done by farmers in Samas beach sand land. The results of research showed that weeds dominant in each plant peppers, eggplant, corn and peanuts and dominant weeds on Samas sandy coastal is narrow- leaved weeds, including weeds class C4, that is Eleusine indica L, Cyperus rotundus, Digitaria ciliaris and Cyperus iria effectively controlled by means of preventive, technical culture, mechanical and biological.
Pengaruh Pupuk Majemuk NPK + Zn terhadap Pertumbuhan, Produksi dan Serapan Zn Padi Sawah di Vertisol, Sragen Devangsari, Imas Masithoh; Maas, Azwar; Purwanto, Benito Heru
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 4, No 2 (2016)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2016.059.75-83

Abstract

Vertisol is a soil that has neutral to slightly alkaline pH. Zinc availability decreases with increasing pH. The existence of symptoms micronutrients scarcity, especially zinc, also caused by the use of highly yielding seeds with unbalanced fertilization. In addition, Zn uptake by plants is sustainability process which resulted in a decrease in nutrient levels of Zn in the root zone. The aim of the research was to determine the optimum Zn formula that can be added to the NPK compound fertilizer and to determine the effectiveness of the fertilizer on the growth and yield of rice. The experiment was arranged by completely randomized block design with 10 treatments and 3 replicates of each treatment. NPK compound fertilizer dose was given 300kg / ha. The result of this study showed that the compound fertilizer NPK + Zn had no effect on plant height, number of tillers and weight of the plant. The additional dose compound of 2% Zn to the dose of compound fertilizer NPK + Zn did not increase the yield. There was a tendency NPK treatment +0.75% Zn deliver the highest results. NPK compound fertilizer application + Zn significantly increased the uptake of Zn.
Identifikasi dan Karakterisasi Isolat Rhizobacteri Osmotoleran dari Merapi Astuti, Agung
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 4, No 1 (2016)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2016.054.32-36

Abstract

Rhizobacteri Merapi isolates have been detected, and MA, MB, and MD isolates could withstand osmotic stress up to >2.75 M NaCl. MD isolate was stronger in dissolving phospate than MA and MB isolates, but MA and MB isolates had much stronger nitrification capability and could perform ammonification than MD isolate. This research studied about Rhizobacteri Merapi isolates as identification, as well as their characterization. The results show that there is a difference in colonial characteristic of four Rhizobacteri Merapi isolates where MB and MC isolates (white circular-entire shape), except for MA isolate (curled-white with undulate edge) and MC isolate (ramose-yellow with filamentous edge) and also that MD isolate have the largest diameter (1,5 mm). Cell characteristics, however, were the same, gram-negative and were rod shaped, except for MD isolate (coccus). All showed aerob and fermentative characteristics, although MD isolate was able to very strongly hydrolyze starchs. The growth type is fast growing which reach log phase for after 48 hours and then the number of colony decrease.

Page 2 of 43 | Total Record : 427

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