TROPICAL WETLAND JOURNAL <p class="p1">Tropical Wetland Journal (TWJ), with registration number <a href=";1375494852&amp;1&amp;&amp;" target="_blank" rel="noopener">ISSN&nbsp;2338-7653</a> &nbsp;(print) and ISSN&nbsp;<a href=";1524025247&amp;1&amp;&amp;" target="_blank" rel="noopener"><span class="s1">2654-279X</span></a>&nbsp;(online), is an open access peer reviewed online journal in the field of tropical wetland and its related aspects, including ecology, diversity, climate, conservation, management, and utilization (agriculture). According to Ramsar convention definition, wetland environment is defined as areas of marsh, fen, peatland or water, whether natural or artificial, permanent or temporary, with water that is static or flowing, fresh, brackish or salt, including areas of marine water the depth of which at low tide does not exceed six meters.</p> <p class="p1">TWJ was published by the&nbsp;<a href="" target="_blank" rel="noopener">Postgraduate Program - Lambung Mangkurat University</a> (ULM Press Academic), in collaboration with the&nbsp;<a href="" target="_blank" rel="noopener">Indonesian Swampland Agriculture Research Institute<span class="s1"> (Balittra)</span></a>. Since 2015, Open Journal Systems (OJS) has been applied for all business processes in TWJ. Therefore, authors are required to register in advance and upload their manuscripts online. This system allows readers, authors, editorial boards, editors, and peer reviewers to obtain the real-time status of manuscripts and purchase hard copies of journals. TWJ publishes two times a year, in June and November. Based on the Decree of the General Director of Strengthening the Research, Technology and Higher Education of the Republic of Indonesia&nbsp;<a href="" target="_blank" rel="noopener"><span class="s1">No.85/M/KPT/2020</span></a>, it was designated as an Accredited Scientific Journal (Sinta 4).</p> <p class="p3">The aim of TWJ is to deliver quality research papers that reported state of the art of the current issues related to tropical wetland environment. TWJ provides a quality scientific platform to academicians, students, and professionals. TWJ publishes only original research papers and review papers. Acceptance for publication is subject to a double-blind peer-reviewing process.</p> Postgraduate Program - Lambung Mangkurat University (ULM Press Academic) en-US TROPICAL WETLAND JOURNAL 2338-7653 <p><a href="" rel="license"><img src="" alt="Creative Commons License"></a><br><strong>TROPICAL WETLAND JOURNAL</strong>&nbsp;is licensed under a&nbsp;<a href="" rel="license">Creative Commons Attribution-ShareAlike 4.0 International License</a>.</p> Growth Response and Yield of Three Shallot Varieties on The Various Mixed of UREA + ZA in Ultisol Soil <p>This study aimed to: (1) identify the interaction effect between varieties and mixed doses of urea + ZA on the growth and yield of shallots in Ultisol soil; (2) to identify the effect of each shallot varieties and the dosage mixture of urea + ZA which produce the highest yield in Ultisol soils. The research was conducted from April to June 2019 in Tungkaran Village, Martapura, with a split plot design. The main plot was shallot varieties (V) with three levels, namely Biru Lancor (v1), Bima Brebes (v2), and Super Philip (v3). Subplots were a mixture of urea + ZA (P) with four levels, namely 0 kg urea + 600 kg ZA (p1), 100 kg urea + ZA 400 kg (p2), 200 kg urea + 200 kg ZA (p3), and 300 urea kg + ZA 0 kg (p4). Each experiment was repeated three times. Therefore, there were 36 experimental units. Observation parameters included plant height, number of leaves per clump, number of bulbs per clump, fresh bulbs' weight per clump, and yield of stored dry bulbs. The results showed that the Bima Brebes variety (v2) had a significant effect on plant height, number of leaves, number of bulbs per clump, the weight of fresh bulbs per clump, and yield of stored dry bulbs. The mixture of 200 kg urea + 200 g ZA (p3) significantly affected plant height, number of leaves, number of tubers per clump, the weight of fresh tubers per clump, and yield of stored dry tubers.</p> Lily Marlina Joko Purnomo Hilda Susanti ##submission.copyrightStatement## 2021-12-16 2021-12-16 7 2 47 51 10.20527/twj.v7i2.95 Pest Control Technology for Plutella Xylostella L. on Green Mustard (Brassica Juncea L.) Using Bacillus Thuringiensis in Tukungan Soil <p>Green mustard (<em>Brassica juncea</em> L.) is a popular vegetable among the people. Green mustard leaves are commonly used as complementary ingredients such as chicken noodle, meatballs, etc. These vegetables are easily accessible to traditional markets, supermarket, and mall. The main obstacle in cultivating green mustard is <em>Plutella xylostella</em> attack. <em>P. xylostella</em> pests can attack both vegetative and generative, striking at the shoots and leaves of plants from breeding to harvesting. One of the effective and safe controls is the bioinsecticide <em>Bacillus thuringiensis</em>. Tukungan soil is a swamp land management technology that aims to diversify commodities that can be planted. This technology is very helpful in utilizing and maximizing existing agricultural land, especially in South Kalimantan. The bioinsecticide material used is a strain of <em>B. thuringiensis</em> which is the Turex WP. This research aims to determine the best dose of bioinsecticide <em>B. thuringiensis</em> (Turex WP) in controlling <em>P. xylostella</em> pests, increasing growth and yield of green mustard in tukungan soils. The research used a one-factor randomized block design, namely the dose of bioinsecticide (Turex WP) consisting of five treatments: p<sub>0</sub> = 0 g/L, p<sub>1</sub> = 0.5 g/L, p<sub>2</sub> = 1 g/L, p<sub>3</sub> = 1.5 g/L, and p<sub>4</sub> = 2g/L. The results showed that the bioinsecticide <em>B. thuringiensis</em> (Turex WP) with a dose of 2 g/L was effective in controlling <em>P. xylostella</em> pests, increasing growth and yield of green mustard in tukungan soils.</p> Akhmad Rizali Riza Adrianoor Saputra Muhammad Alfian ##submission.copyrightStatement## 2021-12-16 2021-12-16 7 2 52 60 10.20527/twj.v7i2.101 Study of Trichoderma Spp. Application on the Incidence of Moler Disease and Shallot's Growth and Yield <p><em>Fusarium</em> wilt disease/moler is a concern in onion cultivation. Many farmers apply chemical pesticides such as azoxystrobin and difenoconazole to control the diseases. Both of these chemical pesticides are currently exhibiting a decline in effectiveness, prompting farmers to increase the dosage and frequency of application. Recommendations for biological control, including <em>Trichoderma spp..</em></p> <p>This study aimed to determine the influence of application time of of <em>Trichoderma spp. </em>in various media types on the incidence of moler disease and shallot growth and yield. This study was conducted in Tabalong district, South Kalimantan, from February to June 2019 using a completely randomized design (CRD) factorial comprising two nested designs. The first factor was the type of media in which <em>Trichoderma spp..</em> was applied, namely solid and liquid. The second factor was the application time of <em>Trichoderma spp..</em> Level 1 was the application of <em>Fusarium sp</em>. seven days before planting and <em>Trichoderma spp.</em>. seven days after planting. Level 2 included the application of <em>Trichoderma spp.</em>. seven days before planting and <em>Fusarium sp.</em> simultaneously during planting. Level 3 involved the administration of <em>Trichoderma spp..</em> concurrently with planting and <em>Fusarium sp.</em> seven days later. This investigation used one positive control (without treatment) and one negative control (shallots inoculated with <em>Fusarium</em>). Each experimental unit was consisted of ten plants and replicated three times. The parameters observed were the incubation period of <em>Fusarium sp</em>., disease incidence, number of leaves, plant height, number of cloves, and average clove weight. The study found that the application time of <em>Trichoderma</em> on various types of media affected the incidence of <em>Fusarium</em> disease, the number of leaves, and the number of shallot cloves.When compared to liquid media, the application of solid media resulted in a reduced incidence of <em>Fusarium</em> disease and a greater frequency of flares. The application time on solid media gave a low response to moles. As for liquid media, the lowest incidence of moler disease occurred at the seven days before planting.</p> Yana Mulyana Mariana Mariana Joko Purnomo ##submission.copyrightStatement## 2021-12-16 2021-12-16 7 2 61 67 10.20527/twj.v7i2.92 Effectiveness of Learning Model of Gawi Sabumi to Improve Students’ High Order Thinking Skills and Ecological Awareness <p>Learning during the COVID-19 pandemic tends to be less developed students' skills. Based on the facts, many elementary school teachers in South Kalimantan are experiencing difficulties because there are limited models and strategies to implement online learning. This reason encourages developing the innovation blended learning model. Innovation on this study is the the product of developing blended learning model with the syntax are Group, Analysis, Work Together, Inform, Solve the problem on outdoor, Actualization of solution, Battle games, Unity on role play, Manage conclusion and Invent the creation&nbsp; (GAWI SABUMI). The purpose of this study is to produce a new learning model and find out the effectiveness of the GAWI SABUMI learning model to improve the ecological awareness and high order thinking skills of elementary school students in Banjarmasin. This study used the type of research and development consisted of three phases to find the effectiveness of the model on the dependent variable through the quasi-experimental research. The study sample was 40 students on an elementary school in Banjarmasin. The result of quality evaluation of the blended learning model GAWI SABUMI was at a high level (X= 4.62) (SD = 0.14). Students had post-test learning skills scores higher than pre-test at .01 level of significance which means that the GAWI SABUMI model meets the criteria of being valid, reliable, and feasible to be implemented and potential to improve students' high order thinking skills and ecological awareness.</p> Ahmad Suriansyah Riandy Agusta ##submission.copyrightStatement## 2021-12-16 2021-12-16 7 2 68 86 10.20527/twj.v7i2.104 The Effect of Temperature and Relative Humidity Inside The Shade Netting on The Growth of Pepper Fruiting Branch Cuttings <p>Pepper <em>(Piper nigrum</em> L.) has many benefits, especially in its seeds, commonly used as a food flavoring. Pepper effectively increases appetite, increases the digestive glands' activity, and accelerates fatty substances' digestion. In general, pepper production per unit area in Indonesia is low. The average is below 1 ton of dry pepper per hectare. This low productivity is mainly due to inadequate cultivation techniques, such as improper fertilization and inadequate care. The development of pepper cultivation is still running slowly due to the many obstacles faced by farmers. This productivity could be increased if farmers could apply good and correct cultivation techniques. Generally, pepper cultivation in Indonesia uses standards. This technique is expensive and requires intensive maintenance. The pepper seeds commonly planted by farmers come from running shoots. The experimental design used was the split-plot design with shade netting as the first factor and the administration of husk charcoal as the second factor. Other factors observed were climatic factors, including temperature and relative humidity, bird bud burst time, sprouting time, and root-shoot ratio. The results indicated that the shade netting and husk charcoal treatment on the planting medium significantly affected bird bud burst time, sprouting time, and root-shoot ratio. This study aimed to investigate the effect of climate on the growth of pepper cuttings. The results indicated that the best bird bud burst time occurred in treatment n<sub>0</sub> (100%), a<sub>0</sub> (1:1) 34.67 days, and not significantly different from n<sub>0</sub> (100%) a<sub>2</sub> (0: 1) 35.00 days. The best sprouting time occurred in treatment n<sub>0</sub> (100%) a<sub>2</sub> (0: 1) 32.00 days, not significantly different from n<sub>0</sub> (100%) a<sub>0</sub> (1: 1) 32.50 days. The root-shoot ratio was significantly different in treatment n<sub>0</sub> (100%) a1 (1; 0) 5.28 g.</p> Suhermanto Suhermanto Gusti Rusmayadi Bambang Fredickus Langai ##submission.copyrightStatement## 2021-12-16 2021-12-16 7 2 87 92 10.20527/twj.v7i2.94