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Caraka Tani: Journal of Sustainable Agriculture
Published by Universitas Sebelas Maret
ISSN : 26139456     EISSN : 25992570     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Caraka Tani: Journal of Sustainable Agriculture publishes original articles, review articles, case studies and short communications on the fundamentals, applications and management of Sustainable Agriculture areas in collaboration with Indonesian Agrotechnology / Agroecotechnology Association (PAGI), Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network), and Indonesian Agricultural Higher Education Communication Forum (FKPTPI). This journal has two issues in a year and it will be published in April and October.
Arjuna Subject : -
Articles 17 Documents
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Search results for , issue "Vol 37, No 1 (2022): April" : 17 Documents clear
The Utilization of Coconut Coir as Supplementary Feed for Beef Cattle Production Nuswantara, Limbang Kustiawan; Sunarso, Sunarso; Arifin, Mukh; Setiadi, Agus
Caraka Tani: Journal of Sustainable Agriculture Vol 37, No 1 (2022): April
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v37i1.55136

Abstract

High feed price is a major problem in the production of beef cattle. Therefore, this study aims to determine coconut coir's technical and economic potential for beef cattle feed. This is an in vivo and in vitro study that involved 95 days trial period and 16 male Brahman crossbreed cattle weighing 134±12.1 kg. The coconut coir was fermented using buffalo rumen liquid and was termed fermented coconut coir (FCC). A randomized block design was used in this research, including four feed treatments, namely complete feed D1 using 15% FCC, D2 using 20% FCC, D3 using 25% FCC and D4 using 30% FCC. The parameters observed were technical performance (protein, dry and organic matter intake), ruminal fermentability, purine derivatives and economic performance. The data were analyzed using analysis of variance and Duncan's multiple range test for posthoc multiple comparisons. The results showed that the intake of beef cattle feed D1, D2 and D3 was higher than D4. Furthermore, the digestibility of D1, D2 and D4 was higher than D3. The purine derivatives of D2 were the highest but not significantly different (P > 0.05) from D1 and D4. In addition, the ruminal fermentability was not significantly different (P > 0.05) among treatments. Moreover, the beef cattle feed on D2 had the best economic performance. The performance results showed that ruminal fermentability, purine derivatives and economic performance of D2 (20% FCC) gave the best results but were not statistically different (P > 0.05) from other variables. Conclusively, coconut coir can be used as beef cattle feed without causing health problems.
The Effects of Different Undergrowth Vegetation on the Types and Densities of Functional Ground-Dwelling Arthropods in Citrus Orchards Inagaki, Hidehiro; Yuto, Saruta; Daiki, Yoto
Caraka Tani: Journal of Sustainable Agriculture Vol 37, No 1 (2022): April
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v37i1.56991

Abstract

In agricultural lands, citrus orchards, pest feeding and weed seed predation by ground-dwelling arthropods are essential ecosystem services. This research aims to investigate the effects of different undergrowth vegetation, including weed area, bare land, rattail fescue and white clover fields, on the types and densities of functional ground-dwelling arthropods in citrus orchards, using pitfall traps. The captured organisms included carnivorous beetles (Pheropsophus jessoensis, Chlaenius naeviger and Dolichus halensis), wolf spiders (Lycosidae sp.), earwigs (Anisolabididae sp.), house centipedes (Scutigeromorpha sp.), herbivorous ground beetles (Amara sp., Harpalinae sp.), crickets and millipedes. Furthermore, the population of the functional ground-dwelling arthropods was significantly increased by the presence of a live mulch, where a higher number was seen in the rattail fescue or white clover compared to the weed or bare land fields. The cover crops also affected the types of arthropods identified, with the rattail fescue field including more Pheropsophus jessoensis while the white clover had an elevated number of wolf spiders, earwigs and Amara sp. (a weed seed predator). This discovery indicates that the type of undergrowth vegetation plays an important role in enhancing functional biodiversity. The kind of pests and weeds that these arthropods are effective against, as well as the extent to which their densities can be decreased, is also unknown. Therefore, further research on the feeding habit and predation of these arthropods should be conducted.
Evaluation of Toxicity of Some Tropical Flora, Clay and Permethrin against Sitophilus zeamais Motsch. on Stored Maize Grains Kingsley Chidi Emeasor; Victor Nkwachi Nwakanma; David Nwazuo Enyiukwu
Caraka Tani: Journal of Sustainable Agriculture Vol 37, No 1 (2022): April
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v37i1.54213

Abstract

Weevil (Sitophilus zeamais Motsch.) is a vital arthropod pest of maize (Zea mays L.) grains and flours in traditional storage systems. The pest bore holes into stored grains reducing their nutrient contents germination potentials and contaminating produce with frass. Its control using synthetic insecticides such as permethrin is being downplayed due to eco-mammalian toxicity from pesticide residues. Therefore, this study evaluates the toxicities of some indigenous plants Ageratum conyzoides L., Cymbopogon nardus L., clay and permethrin, under laboratory conditions to the insect pest. Maize grains weighing 50 g were treated with the plant powders and the synthetic insecticide at five different levels 0.00; 1.25; 2.50; 3.75 and 5.00 g. Subsequently, 10 adult weevils in each vial were used to infest the 50 g maize grains. Each plant powder and permethrin's effectiveness was assessed by recording weevil mortality at 5, 7, 14, 21 and 28 days post-treatment. The damage indices recorded by the weevil perforation index (WPI), percentage of perforated and unperforated grains, and weight loss percentage were also considered. Permethrin proved most toxic, followed by clay at 5.00 g among all the treatments. A. conyzoides and C. nardus were less effective in controlling S. zeamais. In conclusion, clay can be used in the integrated management of S. zeamais to minimize synthetic insecticides.
Financial Analysis of Coconut Sugar Production: A Case Study in Mempawah Regency, Indonesia Ekawati Ekawati; Rahmatullah Rizieq; Ellyta Ellyta
Caraka Tani: Journal of Sustainable Agriculture Vol 37, No 1 (2022): April
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v37i1.51866

Abstract

Coconut is one of the key plantation commodities in the Mempawah Regency that needs to be developed. This is necessary in order to increase the income of coconut sugar craftsmen and also allow them gain knowledge of the industrial scale through feasibility studies on the agro-industry. Therefore, this study aims to analyze the structure of production cost and operating income as well as the feasibility of the coconut sugar agro-industry. This analysis is important for craftsmen in the regency that engage in the continuous production of coconut sugar. Furthermore, this study was conducted in Mempawah Regency with 34 coconut farmers. The analysis of the R/C ratio and Break-Even Point (BEP) was used to determine the indicator of financial feasibility. The result revealed that the average production cost needed by the agro-industry was 7,659,868 IDR month-1 and the generated income was 3,483,132 IDR month-1. Additionally, the coconut sugar agro-industry was financially feasible as the obtained R/C ratio was 1.45. The BEP of production volume and Cost of Good Solds (COGS) was 346 kg and 9,814.92 IDR which is less than the actual production volume and price. It was suggested that craftsmen of coconut sugar produce more than 346 kg of sugar per month with a selling price above 9,814.92 IDR kg-1 in order to obtain profit.
Structure, Conduct and Performance of Onion Market in Southern Ghana Camillus Abawiera Wongnaa; Richard Kwasi Bannor; Raymond K Dziwornu; Joel Atta Ennin; Emmanuel Assibey Osei; Courage Adzikah; Arthur Charles
Caraka Tani: Journal of Sustainable Agriculture Vol 37, No 1 (2022): April
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v37i1.51899

Abstract

The local onion market in Ghana is dominated by ‘on the spot’ market relationships with little or no coordination of chains to improve quality and performance. This study examines the market structure, conduct and their influence on the performance of the onion market in the southern part of Ghana, using data from 180 actors, comprising 80 farmers, 40 wholesalers and 60 retailers. Descriptive statistics, Gini coefficient, Lorenz curve, Herfindahl-Hirschman index and Garett ranking were the methods of analysis used. The results showed that traders were operating in an oligopolistic market with Gini coefficients of 0.62 and 0.56 for wholesalers and retailers, respectively. The findings also revealed that farmers (69%) were more open to contracts than wholesalers (20%) and retailers (11%). Moreover, onion production proved to be costly for farmers as they had a negative return of 1.55% on their investment while wholesalers and retailers made positive returns of 29.85% and 31.1%, respectively. Finally, high production cost, high marketing cost and unavailability of storage structures were ranked as the most pressing constraints to farmers, wholesalers and retailers, respectively. It is recommended that the government, donor support agencies for agriculture and local NGOs come to the aid of farmers by providing them with fixed assets at a subsidized price. This will relieve the farmers from heavy losses which threaten the future food security of the country.
Improving Agarwood (Aquilaria malaccensis Lamk.) Plantlet Formation Using Various Types and Concentrations of Auxins Tamyiz, Maulana; Prayoga, Lucky; Prasetyo, Rendie; Murchie, Erik Harry; Sugiyono, Sugiyono
Caraka Tani: Journal of Sustainable Agriculture Vol 37, No 1 (2022): April
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v37i1.58370

Abstract

Aquilaria malaccensis Lamk. is one of the most widespread agarwood-producing plants that face extinction due to overexploitation. Agarwood propagation using in vitro culture techniques is capable of producing large quantities of plants in a shorter time and free from pests and diseases. Therefore, this study was conducted to analyze the effect of auxins type and concentration on agarwood plantlet formation using a split-plot design. The main plot was the type of auxin which included IAA, IBA and NAA, while the subplot was the concentration used which consisted of 0; 5; 10; 15 and 20 µM. The variable observed was agarwood plantlet formation with parameters measured including the number of shoots and leaves, plant height, and number of roots. The results showed that the formation of agarwood plantlets was controlled by the type, concentration, and interaction between the type and concentration of auxin. Furthermore, explants cultured on Murashige Skoog (MS) medium supplemented with 10 µM IBA produced the highest number of shoots (3.39 shoots explant-1) and leaves (7.25 leaves explants-1), while the addition of 10 uM NAA resulted in the highest number of roots (2.52 roots explant-1). This is the first time a study is conducted to evaluate the effect of type and concentration of auxins on agarwood plantlet formation. The production of high-quality shoots and plantlets increased agarwood germplasm availability to prevent extinction and support sustainable production.
Ecosystem Monitoring on Leaves of Leaf Rust Disease of Maize (Zea mays L.) Sopialena Sopialena; Suyadi Suyadi; Septri Alfian Noor
Caraka Tani: Journal of Sustainable Agriculture Vol 37, No 1 (2022): April
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v37i1.34920

Abstract

Endemic leaf rust disease always occurs in almost all maize plantations in Indonesia. Furthermore, the development of this disease differs concurrently and is greatly influenced by the ecological conditions of maize cultivation. Therefore, this study fills the epidemiological gap of diseases that has not been conducted against the epidemiology of maize rust. This identifies the causes of leaf rust that attacked the maize plants in two locations, namely Bayur and Muang Dalam, Lempake, Samarinda, Indonesia. This study also analyzed the relationship or model between ecological factors of temperature, humidity, and soil fertility on the intensity of leaf rust and the infection rate of maize leaf rust. Measurement of disease intensity, the rate at which it developed, soil fertility and temperature and humidity of the area are conducted in this study. Meanwhile, soil fertility also influenced disease progression and the nutrient-poor soils in two sites cause leaf rust disease to develop well. The identification results showed that the cause of maize leaf rust was Puccinia sorghi Schw. Therefore, the temperature accompanied by the increased humidity is directly proportional to the development of the leaf rust.

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