Tropical Wetland Journal (TWJ)
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125 research outputs found
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The effects of several types of botanical pesticides against whitefly (Bemisia tabaci) on cayenne pepper cultivation in peatlands
Full text linkBotanical pesticides are supporting sustainable agricultural systems with a focus on the efficiency of pest control and reducing the negative effect of synthetic pesticides. Many plant species such as neem, soursop, and jatropha were found to have the potential to control pests, including whitefly (Bemisia tabaci). B. tabaci is an important pest in cayenne pepper cultivation. This study aims to find botanical pesticides effectiveness against B. tabaci on cayenne pepper growth in peatlands. This study used a one-factor randomized group design method. The factor studied was a pesticide solution (p), p0 as a control we used Abamectin, and 3 types botanical pesticides, p1 = soursop leaf, p2 = neem leaf, and p3 = jatropha leaf, each treatment is repeated 6 times. The results showed that the application of botanical pesticide solution had an effect on mortality and intensity of pest attack. The best treatment in the study was neem leaf pesticide (p2) which caused whitefly mortality of 96.7% and reduce pest attacks intensity to 5,10%
Albumin Profile Albumin and Protein Filtrate of Snakehead Fish
No full textBackground and Objective: Snakehead fish in South Kalimantan waters is the most common type of fish. The utilization is still limited. In general, snakehead fish is for consumption, so it need an effort of diversification of processed fishery products. The aims of this research were: (1) increasing value-added of snakehead fish of processing functional filtrate albumin, (2) determining the best steaming duration toward albumin level and filtrate protein of snakehead fish. Materials and Methods: Ingredients used this albumin filtrate were fresh snakehead fishes and ginger or turmeric. This research used random design completed with a factor which was steaming duration of csnakehead fish albumin filtrate of 30, 60, 90 and 120 minutes. Results: The result of the research showed that the different steaming duration had significant effect toward protein content but it had no significant effect toward filtrate albumin of snakehead fish. Conclusion: It can be concluded that the making of snakehead fish filtrate with steaming duration of 90 minutes obtained the highest albumin and protein content
The Food Security of Households Paddy Rice Farmers in Tidal Land Barito Kuala Regency
No full textThis article analyzes the factors that influence the food security of lowland rice farmers\u27 households in tidal land, Barito Kuala Regency. Respondents from this study were 100 rice farmers in tidal land. The analysis for consumption patterns and food security uses descriptive analysis with an approach to the level of adequacy of energy and protein, while for the analysis of factors that affect food security uses a binary logistic regression model. The results showed that the pattern of energy consumption by rice farmers in tidal swamp land was 1,668 calories/capita/day and protein was 48.37 grams/capita/day. The number of farmers who are included in the food security category is 62.00% and 38.00% are not food secure. Households with high food income, small proportion of food expenditure, large availability of food and large area of rice farming land have the opportunity to be more food secure than farmer households on the other hand
Utilization of water mimosa (Neptunia oleracea) leaf meal in concentrate feed to improve the growth of Kalimantan swamp buffalo calves
Full text linkSwamp buffalo on Kalimantan island is reared under an extensive production system. Minimum farmer input and decreasing swamp grass availability during the wet season lead to lower buffalo morphometrics, lower reproductive performances, and a higher calf mortality rate. This participatory study was conducted to evaluate the calf\u27s performance after receiving a concentrate feed formulated using water mimosa (Neptunia oleracea) leaf meal as a protein source. Results of the study showed that water mimosa leaf meal has high crude protein content (>30%). After 4 months of observation, feeding concentrate feed formulated with water mimosa leaf meal as a protein source improved the growth of swamp buffalo calves. The calves in concentrate feed group showed body weight gain of 14.84 kg/month, growths of chest girth 13.6 cm, and height at wither 5.6 cm those improved compared to those in the group that did not offer concentrate feed that had the growths in chest girth 9.2 cm and height at wither 5.2 cm. This study provides valuable insights into the potential of using water mimosa leaf meals as a protein source for concentrate feed, which can enhance the growth of buffalo calves while resolving the issue of water mimosa invasion in the swamp area
Diversity of Arthropod at Soybean (Glycine max l. Merr) With Different Planting Distances
Full text linkThis study observed the spacing effect on arthropod diversity in soybean from November 2017 to January 2018. The treatments were arranged in a randomized block design, with five replications and five different spacings: A - 20x20 cm, B - 20x30 cm, C - 20x40 cm, D 20x50 cm, and E - 20x60 cm. The highest arthropods were found at the narrowest spacing (20x 20 cm) and the lowest at the broadest spacing (20x60 cm). Soybean plantations in the study area had a medium category for diversity index (H\u27), a fairly even category for evenness index (E), and a low category for dominance index (D). All types of relative index values did not differ between treatments
The Amelioration of Planting Media in Chili Cultivation with Floating System in Lebak Swamp
No full textThe aim of this research is to investigate the effect of chicken manure compost and agricultural lime on the growth media used for floating system chili cultivation. The study involved the application of 500 g of chicken manure compost and 6 g of agricultural lime to each floating medium. Chili plants were chosen as the subject for observation of their growth and yield. Based on descriptive data analysis, it was found that the application of 500 g of chicken manure compost per planting hole was able to improve the observed chemical parameters, namely pH and available nitrogen (NH4+, NO3-)
Changes in the chemical characteristics of acid sulfate soil applied to oyster mushroom baglog waste compost
Full text linkAcid sulfate soils are one of the potential lands for agriculture with appropriate treatment. The main problem in these soils is the chemical properties, which is high in acidity and limited nutrients availability and Fe and Al toxicity. Amelioration techniques are needed to improve the chemical properties of the soil, which is oyster mushroom baglog waste compost. This research aims to study the effect of oyster mushroom baglog waste (OMBW) compost to soil chemical properties, also to know the best dosage which affects chemical properties. The research was conducted at the greenhouse of the Agroecotechnology Department and the Laboratory of the Soil Department, Faculty of Agriculture, Lambung Mangkurat University, Banjarbaru. The research was started from August-October 2020. One-factor completely randomized design (CRD) with five treatments and five replications was used, the b0 treatment was not OMBW compost, b1 was 5 t ha-1, b2 was 10 t ha-1, b3 was 15 t ha-1, and b4 was 20 t ha-1. The application of the OMBW compost significantly affected the soil pH and decreased soluble-Fe and Al, but did not significantly affect the Eh value at 2 WAA (Week After Application). The best concentration of dose of OMBW compost was 10 t ha-1 which improved soil pH, decreased soluble-Fe and Al
The Distribution Mapping for Environmental Evaluation of Waterlily (Nymphaea pubescens Willd.) Growing in Lebak Swampland in Kalimantan Selatan Province
Full text linkThe lotus is one of the aquatic plants that grow in the Lebak area and is widely used as food and medicine by the local community. The lotus growing environment determines its growth. The distribution of lotus plants has not been well identified. This study aims to determine the distribution of lotus mapping for environmental evaluation of lotus growing in Teluk Sinar Village, Sungai Pandan District, Hulu Sungai Utara Regency, South Kalimantan Province. The study used data collection methods with primary and secondary data survey techniques. Primary survey through delineation of lotus plant boundaries in the field. Field measurements were also carried out to identify the environmental variables of lotus growing. In addition, the interpretation of high-resolution satellite imagery and low-resolution satellite imagery for spectral analysis. The environmental variables for growing lotus include water depth, light penetration depth, water pH, and sediment pH. The results of the study revealed a map of the distribution of lotus and the growing environment of the lotus. The lotus distribution map was obtained from the results of overlaying several thematic maps, image interpretation, and field measurements using Arc View and Arc GIS software. The distribution of lotus plants can grow in an environment with a water depth of 35-121 cm, a light penetration depth of 23-100 cm, a water pH of 6.25-8.37, and a sediment pH of 3.33-4.69. The results of the Lotus Distribution Mapping and the Lotus growing environment obtained can be used as a basis for determining the potential distribution of Lotus in each region
Arthropod Preference Test Against Zinnia sp. in Oryza Sativa L.
Full text linkArthropoda Preference Test has been carried out on Zinnia Sp. In paddy plantations (Oryza sativa L.). This study aims to determine the level of arthropod diversity in paddy cultivation areas using Zinnia sp. compared to rice without Zinnia sp. The method used is a survey method with purposive sampling which was determined intentionally. The results of the comparison of the 2 treatments showed that in the vegetative phase the number of pests, predators, and parasitoids was more without treatment than using treatment, while the generative phase used less treatment than without treatment. Indeed, from the number of species obtained, there was no signicant difference, but it was seen from the number of fewer pests and more predators with refugia plantations compared to those without refugia. This is evidenced by the comparison of rice yields obtained more with treatment than without treatment 561:429 in units of kg
Economic Value of Environmental Services of Swamp Land Ecosystem (A Case Study in the Hulu Sungai Utara Regency, Kalimantan Selatan)
Full text linkAbout 22,000 hectares are planned to be converted to oil palm plantations by the local government. However, this area has been the source of livelihood for the Banjar people for generations. This economic-environmental services valuation was carried out using a total valuation approach. Previous studies have shown that swamps have economic benefits as a source of water for rice farming (Oryza sativa), timber (Melaleuca cajuputi), fisheries, handicraft crops (Eleocharis dulcis), and for drinking water. They also have ecological benefits in biological functions such as fish feed and breeding grounds, Galam (Melaleuca leucadendron) breeding, water storage, carbonate stocks, and biodiversity value. The total economic value was 21.3 million IDR per ha, with a ratio of the economic value of 7.15% and the value of ecosystem services (ecological) of 92.85%