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Agrica: Journal of Sustainable Dryland Agriculture

Agr
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Published by Universitas Flores

ISSN : 27156613 EISSN : 27154955 DOI : https://doi.org/10.37478/agr

Core Subject : Science, Agriculture,

Agriculture, Biological Sciences & Forestry Chemistry

Agrica: Journal of Sustainable Dryland Agriculture is a journal that presents a platform for sharing knowledge in science and technology related to Sustainable Dryland Agriculture. Its studies are agronomy, pest and plant diseases, soil science, agricultural conservation and ecology, organic farming, agrobiodiversity, agrotourism, permaculture covering the economic aspects of dryland sustainable agricul¬ture (agribusiness, agricultural socio-economic,, agroindustry), agricultural diversification, land and water conservation, agricultural climate, food security, animal welfare concept, mechanization, science and food technology in a dryland environment.

Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)

Articles 267 Documents

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Studi Biologi Hama Kutu Putih Pepaya Paracoccus marginatus Williams & Granara de Willink (Hemiptera: Pseudococadea) Gregorius O Leta; Yustina Maria Silvia Wonga Puu; Imaculata Fatima
AGRICA Vol. 4 No. 2 (2011): December
Publisher : Agriculture Faculty of Flores University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/agr.v4i2.462

The goal of this research was to understand the biology of P. marginatus, a common pest for papaya plants. This research used 1 type of treatment which was repeated 10 times. The results of this research were intended to illustrate the average development time of each development phase of P. marginatus. These phases were: the egg phase (6 days), the female nymph phase (10 days), the male nymph phase (17 days), female adult stage (11 days), male adult stage (3 days). On average, the female life cycle was 27 days, and the male life cycle was 26 days. On average, the pre-fertile stage lasted 4 days, the fertile stage lasted 6 days and the post fertile stage lasted 1 day. On average the pre-egg-laying adult stage lasted 4 days, the egg-laying adult stage lasted 6 days and the post-egg-laying stage lasted 1 day. After the egg-laying stage, the average fecundity of P. marginatus was 370 eggs per female and from these, a total of 350 offspring were hatched per individual. The ratio of surviving Descendents to reproductive couples of P. marginatus white lice was 9:1.

PENGARUH PEMBERIAN BAHAN ORGANIK KIRINYU ( Chromolaena Odorata )TERHADAP PERTUMBUHAN DAN HASIL SAWI (Brasica Juncea ) DI KAWASAN AGROECOTOURISM Agustinus JP Ana saga; Murdaningsih Murdaningsih
AGRICA Vol. 4 No. 1 (2011): June
Publisher : Agriculture Faculty of Flores University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/agr.v4i1.463

This study aimed to explore the effect of Siam weed (Chromolaena odorata) green manure application on the growth and development of mustard (Brassica juncea) in Kelimutu National Park, Indonesia. The study was carried out between September and November 2010 in Ende district on the island of Flores, Indonesia, at an altitude of 1500 to 1730 meters above sea level. This study used a randomized block design with four treatments: K0: No Siam weed application, K1: 5 tons/ha Siam weed (2.8kg/plot), K2: 10 tons/ha Siam weed (5.6kg/plots), K3: 15 tons/ha Siam weed (8.4kg/plot), K4: 20 tons/ha Siam weed (11.2kg/plot). Researchers observed plant characteristics (plant height, leaf area, wet weight and number of leaves) and soil fertility indicators (Organic carbon). Plant organic matter was ground and subsequently analyzed for nutrients using a randomized block design along with lab analysis for soil fertility. The results of this study showed that the application of Siam weed organic matter had no significant effect on mustard plant height, leaf number, leaf area, or wet weight. However, it was found that organic matter application did have a significant effect on soil fertility indicators (organic carbon), and caused an increase in soil organic matter content.

STUDI PEMBUATAN TABLET EFFERVESCENT DENGAN EKSTRAK BUNGA MAWAR MERAH (Rosa sp.) PADA PASCA POTONG BUNGA MAWAR DAN JENIS FILLER (NaHCO3, KHCO3, CaCO3) Theovilla R. Rianty Dami
AGRICA Vol. 4 No. 1 (2011): June
Publisher : Agriculture Faculty of Flores University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/agr.v4i1.464

Red roses (Rosa sp) are a decorative plant species. Their petals contain the pigment anthocyanin, which is classified as a flavonoid and is able to capture free radicals. Due to their popularity, roses are an abundant resource and can be processed into effervescent drink tablets. This study aims to investigate the influence of time after harvest and filler type on the quality of the red rose extract powder, on effervescent tablets made from the said extract and on effervescent drink quality. The study was conducted in two stages. Phase I tested the quality of pigment extract of hybrid varieties of Dutch roses. Three post-harvest durations were tested using a Randomized Block Design: fresh, or 0 days after harvesting (U0), 2 days after harvesting (U1) and 4 days after harvesting (U2). Phase II used a Randomized Block Design arranged in factorial to test rose extracts taken from flowers at 3 post-harvest durations (U0, U1, U2) in combination with 3 different filler types [NaHCO3 (N0), KHCO3 (N1), CaCO3 (N2)]. Resulting pigment extracts were analyzed for water quality, pigment quality, pH, and colour intensity. Effervescent tablets made from the various pigment extracts were also measured for water quality, sugar level, pH, moisture content, tablet density, and colour intensity. Study findings revealed that time after harvest affected pigment extract pH, absorbance, light (L), and red (a+)/yellow (b+) colour intensity, while water content and soluble solid content and quantity were unaffected. Analysis of effervescent tablets found that time after harvest, was linked to differences in water content, texture, light intensity (L) and red (a+)/yellow (b+) intensity while there was no effect on moisture level. Analysis of effervescent tablet drinks found that harvest time and filler type affected pH, dissolution speed, colour intensity and flavour. However, neither time after cutting nor filler type had a significant effect on the quantity of soluble solid, colour, appearance or taste of the drinks.

LEARNING FROM THE PRESENT AND THE PAST: A CONTEMPORARY AND HISTORICAL REVIEW OF AGRICULTURAL IMPACTS ON SOIL FERTILITY Leslie Campbell
AGRICA Vol. 4 No. 1 (2011): June
Publisher : Agriculture Faculty of Flores University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/agr.v4i1.465

Conventional farming involves the use of synthetic and chemical pesticides that increases the short-term productivity of the soil with the expense of its long-term fertility. The emergence of alternative agriculture movement is estimated to have become a progressive response in increasing awareness of the long adverse effects on an effort to promote the soil which is well cultivated by the agro-ecological environment. Although it is a shift from conventional farming, alternative farming practices have not been adequately integrated as organic farming techniques and remain non-organic farming options. In an effort to explore the differences, we conducted a literature review of temperate areas studies comparing to conventional and alternative farming techniques in terms of their effects on soil nutrient levels. This review was found that 70% of the literature supports the use of alternative techniques as the means of reducing the agriculture impact on fertility and health of the soil and highlights the need of further research on the topic of longitudinal studies primarily in the context of the ecology of temperate climate. To contextualize contemporary view with the developing popularity of the alternative conventional farming system, we also explored the literature about the impact of agriculture that expanded again from the 1920s. The historical study examined literature concerning long-term fertility soil in Canada Journal on scientific agriculture to capture general environment narration about alternative farming at that time. It was found that a segment of the pre-1950s literature viewed the farming practices sustainable time, citing the declining yields to support this claim. The latest increasing proved in alternative farming techniques in response to a growing awareness of the long-term effects of conventional farming can be contextualized in the context of history as well as the rise of a more traditional approach to farming.

Cell Wall Lytic Enzymes And Their Role In Bacteriophages Infection I Putu Sudiarta; Gusti Ngurah Alit Susanta Wirya
AGRICA Vol. 4 No. 1 (2011): June
Publisher : Agriculture Faculty of Flores University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/agr.v4i1.466

Use of chemical pesticides has been shown to have many negative side effects, such as insecticide resistance and resurgence, an outbreak of secondary pests and diseases, the disappearance of parasitoid and predator species as well as residual effects on food crops and on the environment. Over the past 60 years, both the number of agricultural toxins in the environment and incidence rates of toxin-related diseases has increased dramatically. The most effective way to combat this problem is through the use of natural predators. One of the best examples of this is the use of host-specific bacteriophages to control bacterial diseases. The mechanism of infection is a very interesting one. To break through the bacterial cell wall the bacteriophages must produce a range of lytic enzymes. This review will examine and discuss studies of these site-specific cell wall lytic enzymes and their roles in the infection of bacteriophages.

Inventarisasi Plasma Nutfah Serealia Lahan Kering Di Sekitar Kawasan Taman Nasional Kelimutu Sri Wahyuni; Murdaningsih Murdaningsih
AGRICA Vol. 4 No. 1 (2011): June
Publisher : Agriculture Faculty of Flores University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/agr.v4i1.467

The goal of this research was to identify the dryland cereal crop seed plasma types growing around Kelimutu National Park, located in Ende district on the island of Flores in Indonesia, by observing crop morphology and cultivation techniques. Cereal crops represent the largest source of carbohydrates in the regional diet in comparison to other food groups in this area where dry land makes up 80% of the total available land. It is estimated that the Ende district of Flores has adequate potential to produce dryland cereal as a staple food crop. Previous studies have shown that farmer preference is shifting towards the cultivation of crops with a higher economic value which threatens the existence of some cereal crops. Concurrently, shifts in eating habits have made rice a staple food in this region, leading to increased consumption and threatening the existence of other cereal crops. Furthermore, outsiders tend to think of areas like Flores as being impoverished, with frequent problems with food security. Currently, there is a lack of knowledge within the youth population about the types of foods, especially cereals, which are rich in nutrients and their use in rituals. This research aims to address this gap by collecting information on cereal crops in and around Kelimutu National Park for dissemination through educational and cultural tours. This study was conducted in the eastern subdistrict of Ndona, Flores and Wolojita Detusoko between June and December 2011. Study findings identified 5 main cereal crops: paddy fields (consisting of: Are Rumba, Are Sela, Are Obo, Are Laka, Amera, Eko Ndale, Kea Ria, Are Mera, Are Kea Mboa, Eko Ena), corn (consisting of Java Roga, Nggela Java, Java, Keo Ri’a), sorghum (consisting of mera Lolo, Lolo Mite and Lolo Telo Leko), barley (consisting of Mera and Wete Wete Bara) and millet (consisting of Ke’o Mite and Ke’o). Of the five types of cereal crops identified, one type (Pega, a subspecies of barley with a sorghum-like panicle) is not found in four of the districts. It was found that corn, classified as a native plant, is strengthened through cultivation by re-seeding. Study results illustrated that corn in this area is of reduced genetic quality, as illustrated by the fact that 3-4 cobs did not develop. Alternatively, the Ke’o Bara strain of barley has a morphology and panicle strand number (270-300) that suggest that this species is typical of this region.

Studi Bioekologi Parasitoid Tetrastichus brontispae Feer (Hymenopters : Eulophidae) Terhadap Hama Brontispa longissima Gestro (Coleoptera:Chrysomelidae) Maria Goreti Nere; Yustina Maria Silvia Wonga Puu
AGRICA Vol. 4 No. 1 (2011): June
Publisher : Agriculture Faculty of Flores University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/agr.v4i1.468

In recent years, the coconut leaf beetle (Brontispa longissima, Hymenopters: Eulophidae) has been a significant pest in Ende, Indonesia and has destroyed the majority of the coconut crop leading to overall production to decline. In 2007 coconut leaf beetle began being controlled biologically using the parasitoid Tetrastichus brontispae (Hymenopters: Eulophidae). This is now considered locally to be the most effective way to suppress pest populations of coconut leaf beetle but until now there have been no scientific studies on this biological pest control method. This study aims to determine the effectiveness of Tetratichus brontispae parasitoids as a treatment for coconut leaf beetle infestations. This research used a Completely Randomized Design (CRD), which was comprised of three types of experiments. First, the average coconut leaf beetle survival rate was measured when exposed to T. brontispae at five ratios: 1:1, 2:1, 3:1, 4:1, and 5:1. Researchers also measured the effect of Tetratichus brontispae treatment duration using 5treatments, namely: 24 hours, 48 hours, 72 hours, 96 hours, and 120 hours of repeated 10 times. 3) Observation of biological parameters of Tetratichus brontispae was conducted qualitatively. The results showed that treatment with the highest level of parasitization occurred at the ratio of 3:1, as much as 20.75% parasitization, and the lowest level parasitization effect occurred at a level of the 1:1 ratio, as low as 7.07%, with the highest percentage survivability of T. Brontispae occurring on the first day (6.48%) and the lowest on day five at 1.29%. On average, 98.13% of T. Brontispae specimens produced offspring, and an average of 32.71% of specimens gave birth each day. Tetratichus brontispae adults had an average life span of 9-11 days, had no pre- oviposition period with the oviposition period occurring until day five. Specimens would die an average of 6 days following oviposition.

EVALUASI KESESUAIAN LAHAN TANAMAN PADI DAN BUAH-BUAHAN BERDASARKAN AGROEKOSISTEM DAN AGROEKONOMI DI DESA TANGGUWISIA DAN JOANYAR, KECAMATAN SERIRIT, KABUPATEN BULELENG, BALI. Ditamulia Slamet Utama
AGRICA Vol. 4 No. 1 (2011): June
Publisher : Agriculture Faculty of Flores University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/agr.v4i1.469

Agroecosystem and agroeconomic evaluation of land suitability for fruit and rice agriculture in Tangguwisia and Joanyar Village, Seririt District, Bali, Indonesia. This research was conducted in the Tangguwisia Village and Joanyar Village, Seririt District, Buleleng Regency, Bali, from January to April 2011. The goals of this study were to determine the suitability of land-based agroecosystems and agroeconomies for rice and fruit crops from an agroeconomic perspective and at the level of the subclass, to understand the characteristics and qualities of the land that allow for increased production of rice and fruits and to create thematic maps of land suitability for rice plant, banana, mango, rambutan, durian, and grape in the agriculturally viable area. Land suitability was evaluated in several stages. First, a preparation phase was followed by the classification of land units (S1, S2, S3 and N). Agroecosystems with extremely agriculturally suitable soil were labelled (S1), systems with reasonably suitable soil were labelled (S2), systems with marginally suitable soil were labelled (S3) and systems considered completely unsuitable for agriculture were labelled (N). Sample points were determined and field surveys were conducted followed by soil analysis and data collection. This data was used to determine agroeconomic and agroecosystem suitability, and to make land-use planning recommendations, all of which culminated in the production of a land suitability map. Existing rice agroecosystems S2, S3 and N were found to be suitable for rice, with slope and texture as limiting factors. Land sections S3 and N were found to be suitable for bananas, with rainfall, dry season length, texture, slope and erosion as limiting factors. Land sections S2, S3 and N were found to be suitable for mango agriculture with rainfall, texture, slope, surface rock, and erosion as limiting, banana, mango, rambutan, and durian). S1 was found to be most suitable to the growing of grapes factors. Rambutan and durian cultivation was found to be best suited to the conditions in land unit N, with rainfall and texture as limiting factors. Vines were found to be suitable in section S2, S3 and N, with dry season length, texture, drainage, slope and erosion as limiting factors. Land units S1 and S2 were found to be suitable to the widest variety of crops (rice).

PENGARUH PENGURANGAN TONGKOL TIDAK BERKEMBANG DAN PEMBERIAN DOSIS NITROGEN TERHADAP HASIL TANAMAN JAGUNG {Zea mays L.) VARIETAS LOKAL SERAYA Kristina Erniyani; A.A. Made Sudira Djelantik; Sang Made Sarwadana
AGRICA Vol. 1 No. 1 (2008): June
Publisher : Agriculture Faculty of Flores University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/agr.v1i1.474

This research conducted to know the effect of decreasing undergrowth stem earn of corn and fertilized corn yield seraya local variety with nitrogen rates and interaction. The experimental factor is decreased unproductive stem earn consist left behind 1 stem earn (Tl), decrease by left behind 2 stem earn (T2) and without a decrease (T3). The second factor is nitrogen dosage by 0,115 and 172,5 kg N/ha. The result of research indicated a real and extremely real interaction between both of treatment factor (T x N) only happen on the amount of variable seed per line and amount of seed per crop. Treatment without decreasing undergrowth stem earn (T3) caused highly weight dry seed oven per hectare is 2,67 ton and lowest on decreasing undergrowth stem earn treatment to left behind 1 stem earn (Tl) is 1,81 ton. Nitrogen treatment 115kg/ha (N2) caused highly weight dry seed oven 2,97 ton/ha and lowest 1,56 ton by 0 kg/ha nitrogen dosage.

PENGARUH PENGURANGAN TONGKOL TIDAK BERKEMBANG DAN PEMBERIAN DOSIS NITROGEN TERHADAP HASIL TANAMAN JAGUNG {Zea mays L.) VARIETAS LOKAL SERAYA Erniyani, Kristina; Djelantik , A.A. Made Sudira; Sarwadana , Sang Made
AGRICA Vol. 1 No. 1 (2008): June
Publisher : Agriculture Faculty of Flores University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/agr.v1i1.474

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Charly Mutiara

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Jl. Sam Ratulangi, No. XX, Kel. Paupupire. Kec. Ende-Tengah, Kabupaten Ende, Provinsi Nusa Tenggara Timur (86318)

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Nusa tenggara timur

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Charly Mutiara

Contact Email sriwahyuni4611@gmail.com

Phone +6281237717814

Journal Mail Official agricafaperta@gmail.com

Editorial Address Jl. Sam Ratulangi, No. XX, Kel. Paupupire. Kec. Ende-Tengah, Kabupaten Ende, Provinsi Nusa Tenggara Timur (86318)

Location Kab. ende, Nusa tenggara timur INDONESIA

Abstract

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Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Charly Mutiara

Contact Email
sriwahyuni4611@gmail.com

Phone
+6281237717814

Journal Mail Official
agricafaperta@gmail.com

Editorial Address
Jl. Sam Ratulangi, No. XX, Kel. Paupupire. Kec. Ende-Tengah, Kabupaten Ende, Provinsi Nusa Tenggara Timur (86318)

Location
Kab. ende,

Nusa tenggara timur

INDONESIA