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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 100 Documents
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Analysis of the Emerging Market for Poultry By-Products in Ghana Gbordzoe, Etriakor Kofi; Onumah, Edward Ebo; Mensah-Bonsu, Akwasi
Caraka Tani: Journal of Sustainable Agriculture Vol 39, No 1 (2024): April
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v39i1.82925

Abstract

The paper examined the emerging poultry by-products market, delving into the nature, revenue generation, influencing factors, and constraints of the market, using data from poultry farmers, aggregators, and cattle farmers. The paper described the nature of the market using descriptive statistics and a flow chart, estimated its contribution to poultry revenue, and examined the factors influencing the proportion of revenue contributed using a Tobit model. Kendall’s coefficient of concordance was used to measure the level of agreement among the poultry farmers in ranking identified constraints. The poultry by-product market is currently characterized by only poultry droppings trading, with Côte d’Ivoire as the largest user (76% of the consumption) in cross-border informal trade and an average selling price of 8.39 USD per metric ton. The emerging market for the by-products can be described as seasonal. Annual revenue per poultry farmer for poultry droppings is 1,072.26 USD. Management type, production scale, and membership of poultry farmers’ association influenced the proportion of revenue contributed from poultry droppings. The emerging poultry droppings market provided an opportunity for small-scale farms to earn additional income and organic manure to support sustainable farming. The key constraints among the poultry farmers participating in the by-products market were low prices and a lack of processing and storage facilities. The study recommended that agriculture sector development agencies should support the development of value chains for poultry droppings and other poultry by-products to help expand the market for sustainable agriculture production under the circular economy framework.
Effect of Different Types of Biochar Applications and Phosphate Fertilizer on the Quality and Yield of Edamame Soybeans on Andisols Karimah, Ramdhana; Purwanto, Benito Heru; Hanudin, Eko; Utami, Sri Nuryani Hidayah; Maimunah, Margi Asih
Caraka Tani: Journal of Sustainable Agriculture Vol 39, No 1 (2024): April
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v39i1.80217

Abstract

Edamame soybean (Glycine max (L.) Merr.) cultivation in phosphorus-limited Andisols presents a formidable challenge due to restricted phosphorus availability despite high phosphorus retention. Unlocking the full potential of this crop demands innovative solutions. This study delves into the transformative effects of biochar and phosphorus fertilizer, individually and synergistically, on edamame soybean growth in Andisols. Employing a randomized complete block design, researchers investigate three types of biochar (B0: control, B1: biochar pellets, B2: biochar powder) and four phosphorus fertilizer rates (P0: control, P1: 27 kg ha-1 P2O5, P2: 54 kg ha-1 P2O5, P3: 81 kg ha-1 P2O5). The bamboo-derived biochar was produced using the Kon-tiki method at ±500 °C. The study reveals no significant interaction between biochar and phosphorus fertilizer. Individually, treatments with B1, B2, and phosphorus fertilizers significantly enhance ammonium, nitrate, and phosphorus availability compared to B0 and P0. Biochar-induced modifications improve phosphorus and nitrogen absorption by roots, resulting in increased shoot dry weight and the root/shoot ratio. However, the number of leaves is solely influenced by phosphorus fertilizer treatment. Additionally, both biochar and phosphorus fertilizers contribute to nitrate reductase activity, root volume, an increased number of pods per plant and higher protein content in edamame soybeans. B2 outperforms B1 and high P3 intensifies this effect, improving nutrient uptake and yield. In summary, biochar and phosphorus fertilizers demonstrate significant potential to revolutionize edamame soybean cultivation in phosphorus-limited Andisols, optimizing pod number per plant and enhancing quality with elevated protein content.
Molecular Identification of Three Potyviruses Infecting Allium cepa var. aggregatum and Allium sativum in Central Cultivation Areas of Indonesia Santosa, Adyatma Irawan; Nasir, Muh Amat; Çelik, Ali; Farooq, Tahir; Subiastuti, Aprilia Sufi
Caraka Tani: Journal of Sustainable Agriculture Vol 39, No 2 (2024): October
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v39i2.86146

Abstract

One hundred and twenty shallot (Allium cepa var. aggregatum) and 22 garlic (Allium sativum) samples were collected from major growing regions and markets to determine the distribution and molecular diversity of 3 potyviruses: leek yellow stripe virus (LYSV), onion yellow dwarf virus (OYDV), and shallot yellow stripe virus (SYSV) in Indonesia. The results of reverse transcription-polymerase chain reaction (RT-PCR) showed that 83% of shallot and all garlic samples were infected by at least 1 virus species. Coat protein (CP) region of 8 Indonesian LYSV, 19 OYDV, and 10 SYSV isolates were sequenced and given accession nos. OR772038-OR772082 in NCBI GenBank. Five isolates were recombinants according to analysis using the Recombination Detection Program (RDP v5.30). The phylogenetic tree deduced that 6 LYSV Indonesian and 2 China imported isolates belong to S-type. All tested OYDV isolates, including the 19 isolates, were clustered separately according to their respective hosts: onion and garlic. The 10 Indonesian SYSV isolates were clustered together in the same group and thus shown to be closely related. All isolates tested in this study were estimated to be still within their respective species demarcation according to percentage identity analysis. This was the most comprehensive molecular study on LYSV, OYDV, and SYSV that may help to find sustainable management strategies according to conditions in Indonesia and contribute to the global knowledge on the genetic diversity of the 3 viruses.
Composting of Rice Straw–Based Materials using Aerobic Bioactivator Isolated from Rice Straw, Mahogany Bark and Cassava Peels Cahyani, Vita Ratri; Rahayu, Rahayu; Lakshitarsari, Kynthavi Paramitha; Megow, Rahma Amira Zhalzhabila Wakak; Azzahra, Nadine Yuki
Caraka Tani: Journal of Sustainable Agriculture Vol 39, No 1 (2024): April
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v39i1.74297

Abstract

Compost is one of organic fertilizers that play an important role in maintaining soil health and supporting sustainable agriculture. Diverse aspects could be developed to increase the quality of compost. This study aims to compare the quality of compost produced by using two different bioactivators, namely aerobic bioactivator RMC (the microbial consortia isolated from composted rice straw, mahogany bark and cassava peels + additional supplement) and fermentative bioactivator (EM4 + molasses) in the composting of the mainly rice straw-based materials. Composting was conducted using a single factor completely randomized design consisting of five levels as follows: C0 (control, rice straw); C1 (rice straw + bioactivator EM4 + molasses); C2 (rice straw + bioactivator RMC + additional supplement); C3 (rice straw + cow dung + bioactivator RMC + additional supplement); C4 (leaf litter + cow dung + bioactivator RMC + additional supplement, as comparison treatment with no rice straw). Among the treatments of C0, C1 and C2, composting the same rice straw material but different bioactivators, C2 showed the highest compost quality and decomposition rate. Among the other three treatments of C2, C3 and C4 composting different materials but using the same bioactivator, C3 showed the highest compost quality, but the three treatments showed the same high decomposition rate. Based on the characteristics of the compost product, including nutrient content, the treatment C3 produced the highest quality, followed by C4 and then C2. Both bioactivators EM4 + molasses and RMC+ additional supplement tended to increase total bacteria, fungi, nitrogen-fixing bacteria and phosphate-solubilizing microbiota in the compost products compared to the control without bioactivator. A set of aerobic bioactivator RMC plus additional supplement serve as one strategy to accelerate the composting process and to enhance the compost quality.
Identification of Pathogens Causing Important Diseases in Leatherleaf Fern (Rumohra adiantiformis) and In Vitro Inhibition using Bacillus velezensis B-27 Tsaniyah, Barokati; Joko, Tri; Widiastuti, Ani
Caraka Tani: Journal of Sustainable Agriculture Vol 39, No 2 (2024): October
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v39i2.83675

Abstract

Leatherleaf fern (Rumohra adiantiformis) is a famous ornamental-leaf plant that has been used by florist entrepreneurs around the world. It is one of the leading export commodities in Indonesia, however, currently, there are some diseases of this leaf reported in the field causing yield loss and reducing the economic value. This study aimed to identify the pathogens causing the recent 3 significant diseases of leatherleaf fern, including leaf blight, leaf tip rot, and post-harvest leaf rot, and in vitro analysis of beneficial bacteria, Bacillus velezensis B-27, against the pathogens. The methods used in this study were isolation, pathogenicity test, morphological observation, molecular identification of pathogens, and poisoned food technique of B. velezensis against those pathogens compared to fungicides and bactericides. The results of molecular identification showed that Neopestalotiopsis sp. and Pantoea ananatis caused leaf blight, Fusarium oxysporum f. sp. sesami triggered leaf tip rot, while Calonectria sp. and P. ananatis contributed to post-harvest leaf rot. Based on in vitro analysis, B. velezensis B-27 reduced the growth of the Neopestalotiopsis sp. DM C with the highest inhibition of 95.6%, Neopestalotiopsis sp. DM B with 84.3%, F. oxysporum f. sp. sesami with 61.9%, Calonectria sp. with 93.4%, and inhibited the growth of P. ananatis by producing a clear zone. This research concludes that B. velezensis B-27 has the potential as a biocontrol against pathogens causing significant diseases in leatherleaf ferns due to its ability to inhibit pathogens and its advantage as a beneficial microbe that is environmentally friendly to support sustainable agriculture.
Status and Development of Agricultural Public-Private Partnership Program Implementation in China Hu, Qiliang; Entebang, Harry; Puah, Chin-Hong
Caraka Tani: Journal of Sustainable Agriculture Vol 39, No 1 (2024): April
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v39i1.83311

Abstract

As the initiator of the Belt and Road Initiative, the Chinese Government’s goal in agriculture is to promote the sustainable development of agriculture throughout China and the world. One of the feasible ways to realize this goal is to adopt the Public-Private Partnership (PPP) model. This study aims to analyze the current status of agricultural PPP projects in China and their impacts. This study utilized the Ministry of Finance database to collect 2014 to 2022 data on agricultural PPP projects in China. The collected data were organized and analyzed to analyze the current situation and return mechanism of Chinese agricultural PPP projects. The results show that China’s agricultural PPP projects are less attractive than other sectors, government and social-private sector cooperation is less sustainable, and laws and regulations and risk assessment are not well developed. Therefore, this study proposes to promote the development of agricultural PPP projects by standardizing the law, improving the return mechanism, and strengthening the risk assessment. Thus, it further promotes the sustainable development of agriculture and plays a certain positive role.
Enhancing Agroecology in Pepper (Piper nigrum L.) Cultivation with Centrosema pubescens Ground Cover: A Study from Central Bangka, Indonesia Kurniawati, Ani; Aini, Sitti Nurul; Khodijah, Nyayu Siti; Gusta, Adryade Reshi
Caraka Tani: Journal of Sustainable Agriculture Vol 39, No 2 (2024): October
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v39i2.90003

Abstract

Pepper cultivation in Bangka Island primarily takes place on sandy land. Legume cover crops, such as Centrosema pubescens, which has been widely used as a ground cover, are anticipated to improve land quality by maintaining soil temperature and humidity, increasing soil organic carbon content, increasing soil porosity, and improving soil fertility. This research aims to analyze the agroecosystem of pepper plants, by comparing the use of the cover plant C. pubescens as a soil treatment and the absence of using these cover plants as a control. The research was conducted in farmers’ pepper gardens in Perlang Village, Central Bangka Regency, Bangka Belitung Province. The research employed a randomized block design, with C. pubescens and natural vegetation as treatments, each replicated 3 times. The variables measured were soil temperature and humidity; abundance of microorganisms; weed density, frequency, and dominance; chlorophyll a, chlorophyll b, and anthocyanin content of pepper leaves; photosynthesis rate; transpiration rate; stomatal conductance; soil chemical and physical properties. The results showed that C. pubescens as ground cover could reduce the dominance of the Bidens pilosa weed (relative dominance of 36.16%) but led to an increase in the dominance of Chromolaena odorata (relative dominance of 38.7%). C. pubescens ground cover could also maintain stable soil temperature and moisture, and increase P, K, Ca, and Mg soil content by 100%, 100%, 43.6%, and 48.3%, respectively. Furthermore, pepper plants grown with C. pubescens exhibited 25%, 23.7%, and 16% higher chlorophyll a, total chlorophyll, and carotenoid content, respectively, compared to those grown without the cover crop.
Utilization of Chia Seeds Powder in Wet Noodle Substituted with Modified Cassava Flour Matita, Intan Cidarbulan; Soedirga, Lucia Crysanthy; Andriani, Irene
Caraka Tani: Journal of Sustainable Agriculture Vol 39, No 1 (2024): April
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v39i1.77711

Abstract

The Indonesian food industry needs to utilize local food commodities as an alternative to wheat, supporting local farmers as part of sustainable agriculture. Modified cassava flour (MOCAF) has similar characteristics to wheat flour yet it lacks gluten and has low protein content. Chia seeds have the potential to improve the textural characteristics of gluten-free products due to their gel-forming ability and are a good source of plant-based protein. This study aims to utilize chia seed powder in the formulation of wet noodles substituted with MOCAF to possibly obtain wet noodles with equal textural characteristics and protein content to 100% wheat flour noodles. In this study, different ratios of wheat flour to MOCAF (100:0, 90:10, 80:20, 70:30, 60:40) and different amounts of chia seed powder (0%, 5%, 10%, 15%) are studied in terms of cooking quality (cooking loss and water absorption), textural properties (hardness, cohesiveness, and chewiness), color (brightness and hue angle). Higher MOCAF substitution resulted in higher water absorption and cooking loss, as well as undesirable (harder) textural properties. Incorporation of chia seeds powder successfully lowers the cooking loss and higher water absorption of the MOCAF-substituted noodles and noodles with 100% wheat flour without chia seeds powder. Chia seed powder can reduce the hardness while maintaining and increasing the chewiness of the MOCAF-substituted noodles. In the MOCAF-substituted noodles, comparable protein content to that of 100% wheat flour noodles can be achieved with the use of 10 to 15% chia seeds powder at a maximum 80:20 substitution ratio.
Resistance of Doubled Haploid Rice Lines with Green Super Rice Characters to Bacterial Leaf Blight Nurhidayah, Siti; Purwoko, Bambang Sapta; Dewi, Iswari Saraswati; Suwarno, Willy Bayuardi; Lubis, Iskandar; Yuriyah, Siti
Caraka Tani: Journal of Sustainable Agriculture Vol 39, No 2 (2024): October
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v39i2.88198

Abstract

Bacterial leaf blight (BLB), caused by Xanthomonas oryzae pv. oryzae (Xoo) is a significant disease attacking rice crops worldwide. This disease attacks at various stages of plant growth and causes significant yield loss. Breeding new varieties resistant to BLB is important to support sustainable agriculture in the future. This study aimed to identify new superior green super rice (GSR) lines resistant to BLB disease. The experiment evaluated the resistance of lowland rice lines obtained from anther culture using a factorial randomized complete block design. The 1st factor was genotype, consisting of 20 lines, 2 checks of commercial varieties (Inpari 42 Agritan GSR and Inpari 18), a resistant check (Conde), and a susceptible check (Taichung Native 1). The 2nd factor was BLB pathotypes (i.e., III, IV, and VIII). Quantitative data on disease severity and severity index were analyzed using analysis of variance and t-Dunnett test at 5% level. The results showed that the interaction between genotype and pathotype affected the disease severity and severity index in both growth phases. The tested lines exhibited varying resistance, from susceptible to resistant, to BLB. Four lines (SN 11, 13, 57, and 58) showed moderate to resistant criteria for BLB disease of 3 pathotypes in both growth phases. The selected lines can be used as a source of parents for breeders and candidates for new superior varieties with BLB resistance properties to support the reduction of synthetic chemical bactericide inputs and control BLB disease. However, further field evaluations are necessary to assess their performance.
Farmers’ Income and the Driving Forces for the Switch from Shifting Cultivation to Settled Agriculture in Meghalaya, India Nonglait, Mebaaibok L; Khundrakpam, Nicholas; Deka, Pratibha
Caraka Tani: Journal of Sustainable Agriculture Vol 39, No 1 (2024): April
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v39i1.76129

Abstract

This study assesses the dependence of farmers on semi-settled (a combination of shifting and settled cultivation) and settled agriculture as a source of family income. The farmers residing in the hilly tracts of West Garo Hills mostly adopt semi-settled cultivation. Farmers are also transitioning from semi-settled to settled agriculture. This study was conducted to investigate the factors influencing the transition and the socioeconomic conditions of farmers practicing semi-settled and settled agriculture. The researchers surveyed 119 randomly selected households in West Garo Hills, a district of Meghalaya, India, using a structured questionnaire. Exploration of influencing factors for transitioning is important to provide insights into how factors interact, thereby facilitating the development of effective adaptation strategies and policies that will ensure farmers’ future well-being. Results showed that settled farmers generate more income and possess more land area than semi-settled farmers. Besides available land area, a stable source of income for a family is a strong determinant for abandoning shifting cultivation and transitioning to settled agriculture to boost income with less time investment and labor. The farmers found that shifting cultivation helped meet their dietary needs and some income during the COVID-19 lockdown. Alongside efforts to boost commercial agriculture, the government should also assist farmers with limited resources in transitioning to settled agriculture by building market networks for the goods produced from shifting cultivation.

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