Caraka Tani: Journal of Sustainable Agriculture
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Urea Application to Enhance Sugarcane Trash Decomposition: A Field Test in PTPN VII of Cinta Manis District in South Sumatera
Get PDFSugarcane harvest results in plant residues, consisting of leaves, stems and roots nearly 20 ton ha-1. The plantation of PTPN VII in Cinta Manis District applied urea with a dosage of 5 kg ha-1 but the result was not effective. There is a potential to try a higher dosage of urea to enhance trash decomposition. This research aims to evaluate urea application on biomass decomposition. This research was conducted on the Plot 07 Rayon 3 of PTPN VII, District of Cinta Manis at Ketiau, Lubuk Keliat of Ogan Ilir, South Sumatra, using Split Plot design. Main plot is trash sampling time and subplot is urea dosage with three replicates. ANCOVA was used for soil data. The rate of decomposition of the litter was calculated by the change in the initial condition of research with each week on observation resulting in decomposition rate graphs. Urea application at 10 kg ha-1 reduced C/N of the litter ratio to almost 21:1 and was followed by the highest total nitrogen increase to 0.18%, while the highest organic carbon decline for urea treatment of 6 kg ha-1 amounted to 13.78%. In conclusion, higher rate of urea application is still required to enhance sugarcane litter decomposition
First Morphological Detection of Non-Quarantine Pest Causing Banana Wilt in Morotai Island
Get PDFThere are two symptoms of wilting in banana plants that have been widely known, namely fusarium wilt and bacterial wilt. The symptoms of banana wilt usually are attributed to pathogenic fungi. Wilting symptoms on the leaves are usually accompanied by leaf spot, leaf streak, leaf speckle and anthracnose. Recent quarantine pest reports have found the symptoms of banana wilt in Morotai Island, Indonesia. The pathogens attack many local cultivars of banana plants including Mas, Ambon, Kepok and Nangka. The study aimed to establish the morphological characters of the pathogens that cause banana wilt. Descriptive research began with the sampling of diseased symptomatic leaves, field data reports and identification of pathogenic morphological characters in the laboratory. The variable observed were the disease symptoms, color and shape of mycelia, conidia, kinds of the pathogens and their growth on agar medium. The results showed that there was no quarantine pest on the symptomatic banana samples. There were two non-quarantine pests that had been identified, i.e Fusarium oxysporum causing fusarium wilt and Cladosporium musae causing leaf speckle
The Characterization of Black Pigeon Pea (Cajanus cajan) in Gunungkidul, Yogyakarta
Get PDFPigeon pea (Cajanus cajan) is potential as an alternative source of protein other than soybeans and is tolerant to dry conditions, but the cultivation of this plant has not been intensively carried out in Indonesia. This research aims to explore the characteristics of black pigeon pea and investigate the producing areas of black pigeon peas in Gunungkidul. Based on the field survey, 30 types of black pigeon peas were found. They were located in Pringapus and Klopoloro 1 Hamlets. This research was conducted on March-June 2018 in Yogyakarta. The observation variables in this study include research environmental condition and plant morphology, for examples, stems, leaves, flowers, pods and seeds. Morphological data were analyzed using NTSYS program. The results show that the height of pigeon pea plants ranged from 63 to 176 cm, the number of branches ranged from 18 to 35, the colors of stem were green to purple and the stem thickness was >13 mm. The similiarity of the coefficient value of pigeon peas in Pringapus ranged between 84% and 95%, while the similarity in Klopoloro 1 varied between 80% and 97%
Yields Losses Caused by Basal Plate Rot (Fusarium oxysporum f.sp. cepae) in Some Shallot Varieties
Get PDFBasal plate rot or moler caused by Fusarium oxysporum f. sp. cepae (FOCe) is the most important disease of shallot. However, the information of crop losses attributed to the pathogen is still limited, especially related to resistance of shallot. This paper discusses the correlation between disease severity and resistance of some shallot varieties to yield losses. The experiment was arranged by Completely Randomized Design (CRD) with six varieties of shallot as treatments, each of which consisted of 20 shallots, with three times of replications. The independent variables were the disease severity of twisting leaf and rotting of shallot bulb. The association of disease severity versus yield losses in different varieties was based on the correlation analysis. The results showed that both variables were positively correlated to yield losses, which were significantly affected by the level of resistance. Yield losses in resistant and moderate varieties were at the ranges of 2.13-4.38 and 15, 27.26-40.04, respectively
Production and Marketing System of Kampong Chicken in Batang Regency, Central Java, Indonesia
Get PDFKampong chicken is an indigenous chicken that gains popularity among consumers andit has good potentialsas a livestock commodity. But, the problem is most kampong chicken were kept in free range system without any standard of the rearing procedure and time. The farmers will sell their chickens by market’s requests. The study aims to determine the agribusiness production and marketing sub-system of kampong chickens. A hundred kampong chicken farmers from 9 sub-districts in Batang Regency were interviewed. Respondents were chosen by simple random sampling. Each farmer owned 4-120 kampong chickens with average number of 6.76 heads per farm. The poultry production sub-system consisted of six constituent variables, namely administration/bookkeeping, location, maintenance technology, maintenance system, business continuity and sanitation. Each constituent variable produced score of 1.44; 1.75; 1.68; 2.77; 1.55 and 2.03 respectively with the average value of 1.87. These results indicated that the applications of agribusiness production sub-systems were in the moderate category. The assessment of the marketing sub-system application included five variables namely marketing scale, marketing objectives, marketing technology, market information and pricing with the following scores 1.52, 1.76, 1.41, 1.85 and 1.18 respectively; or have an average value of 1.54. This result showed that the marketing sub-system has a moderate category. Improving the production system which consisted of the bookkeeping record, increase the number of rearing scale and sanitation process would improve farm productivity. Increasing marketing systems such as the application of electronic marketing would improve market efficiency. The results showed that the improvement of production and marketing agribusiness sub-systems are needed in order to increase farmers’ income
Community Perception of the Development of Productive Landscape in Yogyakarta City
Get PDFThis research seeks to identify the potential of local community to support the development of productive landscape in Yogyakarta City. It hypothesizes the important roles of ecological perception, aesthetical perception, economics perception of productive plant, social-cultural perception, the role of social organization and the status of house ownership that would assist productive landscape development. This paper contributes to the importance of productive landscape development through community participation. The road/street location was chosen with purposive sampling by considering the characteristics of the arterial roads and local streets. Five arterial roads and five local streets were determined as the locations. The field survey method, with semi-structured questionnaires, was employed to obtain the primary data. The residences in arterial roads and local streets were selected by the linear systematic random sampling and the respondents participating in this study were 160 persons. The results have shown that the perception of residents depends on the experiences of their situation. The majority of residents have disclosed the low response on economical perception of productive landscape development in the greenery. The development of productive landscape is influenced by the ecological, aesthetical and socio-cultural perceptions of the residents living nearby the arterial roads. Meanwhile, the residents of local streets have a different perception of productive landscape development, which is influenced by ecological and aesthetical perceptions. The collaboration between government and community should be made to develop the efforts to grow and manage the vegetations along the roadsides of the city
Evaluation of Farms’ Sustainability According to Land Tenure in Mornag, Tunisia
Get PDFIn Tunisia the main objective of sustainable agriculture is to improve agricultural systems by creating more wealth and meeting the needs of the population without compromising those of future generations. It turned out that confusion and lack of clarity of ownership status of agricultural land would lead to instability in agricultural sustainability by having a negative impact on social and economic prosperity and environment preservation. Within this environmental concern, the current research constitutes an assessment of the level of sustainability of different farms in Tunisia where problems of land ownership still exist. The current research is based on the Farm Sustainability Indicators method (standing for: ‘Indicateurs de durabilité des exploitations agricoles or IDEA). This case study employed IDEA method which provides operational content to compare the sustainability concept at the farm level, based on the factor of ‘land tenure status’. In Tunisia, the lack of clear land ownership affects the output of agriculture that is why it is valuable to assess the impact of land properties status on farms’ agricultural sustainability. Hence, we distinguished two groups of farms: Private Farms (PF) (inherited from father to son) and Farming Enhancement Corporation (FEC) (state’s lands leased by farmers for many years). The results showed that land tenure has impact on farms sustainability. PF are more sustainable on both agro-ecological scale (49.2) and socio-territorial scale (48); compared to FEC (agro-ecological: 44.5 and socio-territorial: 46). PF favor integrated systems and the production of field crops and fodder crops and they attach greater importance to their employees’ training
The Characteristics of Striped Catfish Oil (Pangasius hypophthalmus) Extracted by Dry Rendering Method at Different Temperatures
Get PDFStriped catfish (Pangasius hypophthalmus) is a high-fat fish compared to other freshwater fish like snakehead fish and carp. Striped catfish oil contains unsaturated and polyunsaturated fatty acids that are beneficial for health. The quality of catfish oil is affected by the extraction method, especially the preliminary heating temperature for the extraction. This study aimed to determine the effect of different heating temperatures on the characteristics of catfish oil and find the best heating temperature in the dry rendering process. This study used a completely randomized design with three different heating temperatures (80°C, 100°C and 120°C). The result showed that the extraction at various temperatures was significantly different on the yield, moisture content, peroxide value, iodine value, free fatty acids value and slip melting point, but not significantly different in sensory properties. A higher heating temperature could increase the yield percentage, free fatty acids values, peroxide values, iodine values, except to the moisture contents, slip melting point and fatty acid profiles. The best temperature was 100°C for 20 minutes with 9.09% yield, 1.44% moisture content, 1.72% free fatty acid, 15.82% iodine value and sensory of 7.65<µ<8.15. Based on the results, it can be concluded that the dry rendering temperature affects the characteristics of the catfish oil
The Effects of Types of Manure and Mycorrhizal Applications on Sandy Soils on the Growth and Yield of Curly Red Chili (Capsicum annum L.)
Get PDFMarket demand for chilies continues to increase, so efforts are needed to increase the productivity of the chili plants. One of the efforts is by intensifying production factors such as applying fertilizers on beach sand which contain low nutrients and organic matter so that manure input is needed and also utilizes soil microbial technology in the form of arbuscular mycorrhizal fungi which are relatively cheap economically and environmentally friendly. The purpose of this research was to study the effect of types of manure and mycorrhizal applications on the growth and yield of curly red chili. The research was arranged in a strip-plot Randomized Completely Block Design (RCBD) consisting of two factors with three replications. The first factor is the type of fertilizer (cow manure, chicken manure, guano fertilizer, quail manure and urea fertilizer) and the second factor is the application of mycorrhizae (with and without). This study concludes that quail manure increases plant height. The addition of chicken manure, guano fertilizer and quail manure multiplies the total fruit production. The application of mycorrhizae gives the same results on the growth and yield of chili
The Behavior and Performance of Cashew Market in South Buton Regency, Indonesia
Get PDFSome of the major problems in cashew marketing performance are low production, inefficient marketing system and low income received by farmers. In addition, farmer with a low bargaining position will only receive prices from market players in the midst of increasing demand and competition in the market. The aim of this study is to examine the behavior and performance of the cashew market in South Buton Regency, Indonesia. Furthermore, the marketing channels, margins, costs and benefits received by each agency were used to analyze the technical and economic efficiency. In addition, random and snowball sampling techniques were applied to determine the farmers and traders, respectively. The results showed that the behavior of market price was based on the cost analysis, supply and demand, as well as the expected benefit. Meanwhile, the transactions were made partially (initial payment before and after the products were sold) and some in cash. The market players were unique in providing cooperate capital to farmers. Moreover, the market performance shows an efficient system from the two channel patterns formed, close distance indicates a technically efficient system and low marketing cost indicates economic efficiency