Dayak shallot has various phytochemical compounds that useful for health; people use it as medicinal plants. The technique of cultivating plants has not been informed completely. Hence, the research needs to be conducted to understand the competitiveness of weeds and the best planting space for optimal production. The research objectives are to obtain the effect of weed control and plant spacing for Dayak shallot growth and development. This research was used <em>randomized block design</em> two factors. The first factor is plant spacing and the second factor is weed control. There are four combinations of treatments between planting space and weed control. The treatment combinations used are: (1) Plant spacing of 15 cm x 15 cm with weed control; (2) Plant spacing of 15 cm x 15 cm without weed control; (3) Plant spacing of 30 cm x 30 cm with weed control; and (4) Plant spacing of 30 cm x 30 cm without weed control. Each treatment combination was repeated three times. The results showed that a combination of plant spacing and weed control was affected the percentage of flowering, the number of flowers on 4 and 6 days after planting, and the dry weight of Dayak shallot. The components of plant growth of Dayak shallot (plant height, number of leaves, root length, leaf biomass, root biomass, and total flavonoid content) was not affected by the combination of treatments. The dominant weed is <em>Borreria latifolia,</em> with SDR 30.623%.

The Ciwaringin batik has different features compared to other Cirebon Batik Tulis. It has a unique motif and soft batik color produced from natural dyes. This research aims to reconstruct the knowledge of the community in using local plants as basic material of natural dyes at Ciwaringin, Cirebon, becomes a scientific knowledge. This research was qualitative descriptive research. Data were collected through observation, in-depth interviews, discussion with batik artisans, documentation, and literature study. Data were analyzed by using verification, reconstruction, formulation, conceptualization, and documentation, to obtain scientific knowledge. The subject of this research is the batik artisans of Ciwaringin batik. The result showed that Indigenous knowledge to utilize the local plant as a natural dye of batik by Ciwaringin community is unique local wisdom to maintain environmental balance. Their scientific concepts that have been identified and documented systematically are scientific knowledge that has not been yet formalized. The cause and effect relationship was known through a verification process and then were reconstructed and conceptualized into formal scientific knowledge. The scientific knowledge can be used as a source of culture-based science learning in schools called ethnoscience. The implications of this research are environmental conservation and the increasing value of local wisdom.

<p align="center"><strong>ABSTRACT</strong><strong> </strong></p><p><em>The purpose of this research was to investigate the effectivity of arbuscular mycorrhizal fungi (AMF) inoculation on shallot yield with three techniques of irrigation. This research was conducted at Gagasari Village, Cirebon from May to August 2016. This research was arranged in split plot design with two factors. Irrigation technique as main plot consisted of three levels i.e. without water logging, intermittent, and using water logging. Rates of AMF as sub plot consisted of three levels i.e., 0, 10, and 15 g per plant. The result showed that rates of AMF affected water content of plant. The rates 15 g per plant of AMF gave the highest of water content of plant (65%). Furthermore, the highest of biomass was resulted by water logging treatment. Phosphorus content of plant was not affected by AMF inoculation.  Inoculation of AMF increased shallot bulb weight per plant when it was combined to intermittent and water logging treatment. Based on regression test to AMF rates at water logging treatment, the optimum rates to increase weight of shallot bulb was 6.71 g AMF per plant. That rates potentially gave 23.53 g per plant of shallot bulb.</em></p><p><em>Keywords: intermittent, phosphorus content, water content, water logging </em></p><p align="center"><strong> </strong><strong> </strong></p><p align="center"><strong>ABSTRAK</strong> </p><p>Penelitian ini bertujuan untuk mengetahui efektivitas dari inokulasi cendawan mikoriza arbuskula (CMA) terhadap produksi bawang merah dengan tiga teknik pengairan yang berbeda. Hifa CMA dapat membantu proses penyerapan air dan unsur hara pada tanaman terutama fosfor (P). Penelitian ini dilaksanakan di Desa Gagasari, Kabupaten Cirebon dari bulan Mei sampai Agustus 2016. Terdapat dua faktor perlakuan yang disusun dengan rancangan <em>split plot. </em>Petak utama adalah teknik pengairan yang terdiri atas tiga taraf yaitu selalu tergenang, <em>intermittent</em>, dan tidak tergenang. Anak petak adalah dosis CMA yang terdiri atas tiga taraf yaitu tanpa CMA, 10 g per tanaman, dan 15 g per tanaman. Hasil penelitian menunjukkan bahwa terdapat pengaruh yang nyata dosis CMA terhadap kadar air tanaman. Kadar air tanaman tertinggi (65%) diperoleh dari pemberian dosis 15 g per tanaman. Serapan P tanaman tidak dipengaruhi oleh penambahan CMA. Bobot kering tanaman tertinggi (20.23 g per tanaman) diperoleh dari perlakuan teknik pengairan dengan penggenangan. Inokulasi CMA efektif meningkatkan bobot umbi per tanaman pada teknik pengairan <em>intermittent </em>dan selalu tergenang. Berdasarkan hasil uji regresi terhadap dosis CMA pada kondisi selalu tergenang, dosis optimum untuk meningkatkan bobot umbi per tanaman yaitu 6.71 g CMA per tanaman. Dari dosis tersebut diperoleh potensi bobot umbi per tanaman 23.53 g per tanaman.</p>Kata kunci: <em>intermittent</em>, kadar air, penggenangan, serapan P

The exoticism of Ciwaringin batik has a different appeal and privileges compared to other Cirebon written batik, in addition to the unique motifs depicting flora meaningful hereditary historical philosophy it also has a soft batik colour because it is produced from natural dyes. STEAM learning is believed to equip students to be able to adapt to the changes they will face later. This paper presents the design of science learning through the integrated STEAM approach to ethics in the cultural context of Ciwaringin batik for prospective elementary school teacher students. In this paper, we will examine and examine the elements of science, technology, art, engineering and mathematics that are contained in ciwaringin batik culture lectures for prospective elementary school teacher students. Science learning based on local wisdom fosters a love of indigenous knowledge as part of the nation's culture that has implications for the conservation of the surrounding natural resources and environmental balance that is acted out through STEAM learning. In This research We Use method uses a research and development (R & D) approach. Thus, the development is more directed at efforts to produce products ready for real use in the field, not just finding knowledge or testing certain hypotheses or theories. The results obtained from this research are the design of lecture activities using STEAM approach (Science Technology, Engineering, Arts and Mathematics) for prospective elementary school teacher students in learning.

Nanofiber is one-dimensional material that has broad application. It can be formed by applying a high-voltage source to a polymer solution so that the polymer solution becomes charged. Using the high electric field, the charged polymer solution is formed as a Taylor cone and then drawn to the collector to form long, nanoscale fibers. This method is known as electrospinning. There are two types of electrospinning method; they are needle and needleless electrospinning. The latter is intended for mass production nanofibers because it can make tens to hundreds of jets at a time. Therefore, the high-voltage source required for the needleless electrospinning process must have a higher voltage and current compared to those for the needle one. Accordingly, the high voltage power supply using a series-configuration Mazzilli ZVS flyback converter was designed and developed. The Mazzilli flyback converter was able to generate a high voltage with relatively high power. Two converters were connected in series to achieve more output voltage. The output voltage was adjusted by changing the input voltage. The single converter could generate a high voltage up to 34 kV whereas the series-configuration converter could increase the voltage by 98.41 % to be 67 kV. The output voltage of converter was relatively stable and good enough to perform nanofibers synthesis using the needleless electrospinning. Visual observation confirmed that the nanofibers were formed well on the collector.

The application of technology in agriculture, especially in Gedong Gincu Manggo farming is GAP (Good Agricultural Practice) with SOP (Standart Operational Procedure). GAP is a general guideline in carrying out the right cultivation to ensure product quality and safety of farmers and consumers as well as environmentally friendly. The aims of this study was to examine the level of application of GAP technology conducted by mango gedong farmers and to analyze the effect of the application of this technology on increasing the income of mango gedong gincong farming. The study was conducted in two mango production centers (Panyingkiran Majalengka and Sedong Cirebon) with total sample were 60 respondents. Collection of data by using interviews and filling out questionnaires. Data analysis method uses quantitative descriptive analysis and multiple regression analysis. The results of the study prove that the average mango gedong mango farmers in Panyingkiran Majalengka and Sedong Cirebon has implemented GAP technology according to SOP. The application of GAP technology has a positive impact on increasing income of mango gedong farming. Gedong gincu Mango Farming Income was Rp. 59,359,022. In addition, the application of GAP technology can also increase the level of farming feasibility or R / C Ratio. R / C Ratio obtained is 2.05, meaning that every Rp. 1 that is used will provide as much as Rp. 2.05. Mango gedong gincu farming is feasible because of the R / C ratio> 1. In the B / C analysis the ratio can be seen the result is 1.05, meaning that from Rp. 1 the cost of the farmer has a profit of Rp. 1.05. The use of GAP technology has a simultaneous and significant effect on income with a constant value of-1,342 stating that if there is no increase in the value of the GAP technology use variable (X1), then the income value (Y) is-1,342. The regression coefficient of 0.934 stated that each addition to one score or the value of using GAP technology will give a score increase of 0.93.

Bantar Agung Village in Majalengka Regency, West Java Province, is developing agriculturally-based tourism. The Ciboer Rice Fields area is one of the attractions in the village of Bantar Agung that presents the visual beauty of the rice field landscape. New agrotourism opportunities will be developed in this area. The study has aimed to evaluate the visual quality of the Ciboer Rice Fields and how it would be affected by agrotourism-related changes. Data were analyzed using Kendall’s W test, scenic beauty estimation (SBE), semantic differential (SD), factor analysis, and multidimensional scaling (MDS). It is found that when more objects are added to the Ciboer Rice Fields landscape, the value of beauty is diminished. Village regulations are needed to protect the visual experience of the Ciboer Rice Fields.

Indonesian batik has been awarded by UNESCO as one of the world’s non-object cultural heritages. And this is a challenge for young generation on how to preserve this culture. The purpose of this research is to implement Biotechnology learning through the Ethno-STEM PJBL model for PGSD students and produce sains batik, so it can triggger the young generation to preserve it. This learning model is a project based learning in analyzing several natural materials as natural dyes for batik, dye-making techniques that are integrated into the concept of biotechnology, and producing a product designed by the students. This research method is R&D research. It has 3 steps: (1) Define; (2) Design Development; and (3) Disseminate. The instruments used in this research are product validation sheets, assessment rubric products on the designs, colors, and symbolic value. Data were analyzed descriptive qualitative and descriptive statistics. The finding of the research showed that the products of sains batik validatated, one of which is “piperidine seribu daun” has a a secondary metabolite content of the mango combined with the design of thousand of leaves, the special Ciwaringin batik. It has a meaning of togetherness to preserve the environment for manga as local plant of Cirebon. The conclusion from this research is that students not only learn the concept of biotechnology but also they can develop Ciwaringin batik. The implication of this research is that it can stimulate the young generation to take a part in preserving and developing the Indonesian batik industry.