Respons Pertumbuhan Tanaman Nilam (Pogostemon cablin Benth.) Terhadap Variasi Ketersedian Air Sebagai Strategi Adaptasi Terhadap Perubahan Iklim

atchouli (Pogostemon cablin Benth.) is an aromatic plant, well known to produce valuable essential oils. Patchouli productivity in Indonesia from 2014 to 2020 was quite fluctuated. Plant growth and productivity is influenced by climate factors and water availability. Drought for instance can disrupt photosynthetic cycle and lowering the biomass production. Patchouli plants have shallow roots, susceptible more to drought stress. This experiment was conducted to identify the effect of watering field capactiy status on growth and biomass production of Patchouli. The experiment was carried out at the Greenhouse for Research and Assessment of Agricultural Technology (IP2TP) Sidondo, Sidondo III Village, Sigi Biromaru District, Sigi Regency, Central Sulawesi, from January to March 2022. This study used Randomized Block Design (RAK) which consisted of one factor, namely diferent water levels expressed in percentage of water field capacity (KL). There were 6 differents KL treatment K0 = 100%, K1 = 90%, K2 = 80%, K3 = 70%, K4 = 60%, K5 = 50%. Each treatment was repeated 4 times with 3 plants, in total there were 72 experimental units (polybags). The results showed that 90% and 100% of water field capacity (KL) increase the growth and impact to higher patchouli biomass, 46.35 g and 47.93 g, respectively. When KL is dropped to 80%, the biomass is reduced 20%. It is therefor, to maintain higher biomass production, the water field capacity shall be kept at least 90%

Pengaruh Konsentrasi Pupuk hayati dan Dosis Pupuk NPK terhadap Pertumbuhan dan Hasil Tanaman Kangkung Darat (Ipomoea reptans)

This study aims to determine the effect of the concentration of biofertilizer and the dose of NPK fertilizer and their interaction on the growth and yield of land kale plants. This research was conducted from January to February 2024 at Pengenjek Village, Jonggat District, Central Lombok Regency. The design used in this research is Factorial Randomized Group Design (RAK) consisting of 2 treatment factors, namely the concentration of biological fertilizer consisting of 3 levels, namely K0 (control), K1 (5 ml/L) and K2 (10 ml/L). While the second factor is the dose of NPK fertilizer consisting of 4 levels, namely D1 (1 g/plant = control) D2 (1.5 g/plant), D3 (2 g/plant), and D4 (2.5 g/plant) so that 12 treatment combinations are obtained. Each treatment consisted of 3 replicates so there were 36 experimental units. Observation data were analyzed using analysis of variance (analysis of variance) at the 5% level, treatments that were significantly different were further tested using the Honest Differences (BNJ) test at the 5% real level. The results showed that there was a real interaction between the concentration of biofertilizer and the dose of NPK fertilizer in affecting the number of plant leaves at the age of 28, 35 hst and the fresh weight of plant plants at 35 hst. Biofertilizer concentration as a single factor significantly influenced plant height at 28 and 35 hst, height increase rate, number of leaves at 28 and 35 hst, stem diameter at 28 and 35 hst, fresh weight and dry weight of plants. While the dose of NPK fertilizer as a single factor had a significant effect on plant height at 28 and 35 hst, number of leaves at 28 and 35 hst, stem diameter at 28 and 35 hst, fresh weight and dry weight. In this study, the best treatment combinations were 5 ml/L biofertilizer concentration and 1 g/plant NPK fertilizer dose and 10 ml/L biofertilizer concentration and 1 g/plant NPK fertilizer dose. while the best biofertilizer concentration treatments were 5ml/L and 10 ml/L and the best NPK 1 g/plant fertilizer dose treatment on the growth and yield of land kaleplants

Perkembangan Pakan Lobster Berkelanjutan: Tinjauan Nutrisi, Binder, dan Dampak Lingkungan

Lobster aquaculture has emerged as a strategic global sector, yet faces critical challenges in sustainable and cost-effective feed formulation. This review synthesizes findings from 15 studies (2004–2025) to analyze species-specific nutritional requirements, binder efficacy, and innovation opportunities. Lobsters require high protein (>45%) for growth (especially larvae/juveniles), with limited lipids (<10%) and moderate carbohydrates (20–35%). Nutritional imbalances reduce feed efficiency and may trigger physiological disorders. Binders like carrageenan (2–4%) and sodium alginate (3%) optimize feed stability (>4 hours) and growth performance (Panulirus argus, Homarus gammarus), while natural binders (e.g., 5% cornmeal) show inferior results. Key challenges include species-specific dietary adaptations (P. cygnus thrives on natural diets), environmental impacts of nitrogen waste, and underutilized local ingredients (e.g., shrimp waste meal). The study highlights the potential of multifunctional binders, RAS/IMTA systems, and fishery byproduct-based feeds. A holistic approach integrating precision nutrition, innovative feed technologies, and sustainable farming practices is recommended to enhance productivity and environmental sustainability. Future research should prioritize binder-microbiome interactions, standardized protocols for commercial species, and circular economy models to support Indonesia’s competitive position in global lobster markets

Instalasi Pengolahan Air Limbah Rumah Sakit Umum Daerah Provinsi Nusa Tenggara Barat

Wastewater management in hospitals is an important aspect to maintain environmental quality and public health. This research evaluates the effectiveness of the Waste Water Treatment Plant (IPAL) at the Regional General Hospital of West Nusa Tenggara Province (RSUDP NTB) using a biofilter system. The research was conducted for 30 days with a focus on operational observations, interviews with staff, and analysis of wastewater treatment data. The results show that the NTB RSUDP WWTP consists of seven units with varying capacities and involves pre-processing and main processing stages. Despite comprehensive operations, challenges such as pipe blockages and problems with flow meters still occur. Recommendations include improving routine maintenance, optimizing processing processes, and outreach regarding solid waste disposal

Evaluasi Eko-Teknis Struktur Habitat Lamun dan Kelimpahan Echinodermata di Pulau Pahawang

Seagrass ecosystems serve as important habitats for various marine organisms, including Echinodermata. This study aims to examine the relationship between seagrass cover and the abundance of Echinodermata in the waters of Pahawang Island. Sampling was conducted at four stations using the transect–quadrat method, followed by species identification and measurements of seagrass cover. Three seagrass species were recorded: Enhalus acoroides, Thalassia hemprichii, and Halodule uninervis. Eight species of Echinodermata from four classes were found, with Diadema setosum being the most abundant and occurring at all stations. Other species appeared selectively, depending on local habitat conditions. Higher Echinodermata abundance was observed in areas with greater seagrass cover. Regression analysis revealed a positive relationship between seagrass cover and Echinodermata abundance, indicating that denser seagrass beds support higher population levels. Overall, the condition of seagrass ecosystems plays a key role in shaping the abundance and distribution of Echinodermata, highlighting the importance of conserving seagrass habitats around Pahawang Island

Karakteristik Habitat Pohon Pakan dan Populasi Lutung di Wisata Jeruk Manis, Resort Kembang Kuning, TNGR Sebagai Upaya Konservasi

The study entitled Characteristics of Food Tree Habitat and Langur Population in Jeruk Manis Tourism, Kembang Kuning Resort, TNGR aims to understand the role of habitat in the survival of the Javan langur (Trachypithecus auratus), an endangered primate species. The Javan langur functions as a natural seed disperser in the forest, and its presence is very important for the plant regeneration process. This study was conducted in November-December 2024 in Kembang Kuning Village, East Lombok, using the population census method and vegetation analysis. The research method includes collecting data on the langur population through the concentration method and vegetation analysis by creating sample plots measuring 20 x 20 m. The results showed that the langur population varied in various plots, with a higher proportion of adult individuals in some locations, indicating group stability. The data also showed that the bajur tree (Pterocarpus indicus) was the main food source with a high Importance Value Index (INP) value. This study provides insight into the composition and structure of vegetation in the langur habitat, as well as the importance of conserving this species in the face of threats from hunting and habitat loss. By understanding the characteristics of the habitat and distribution patterns of the langur population

The Sifat Mekanis Self Consolidating Concrete dengan Penggunaan Coconut Shell Ash Sebagai Bahan Tambah pada Semen

In civil construction work, conreting is often becoming difficult because of limited space on concrete mold or because of congestion of reinforcement. To overcome this case, self-consolidating concrete is frequently used. This type of concrete requires Slump flow, Passing ability and Segregation resistance requirements by using cement up to 600kg/m3. The current trend in concrete technology is utuilization of Pozzolan. This research discusses the behavior of the mechanical properties of self-consolidating concrete with coconut shell ash as additives. The Coconut shell ash is produced by burning coconut shells at a temperature of 800°C for approximately 4 hours. Five series of 15x30cm concrete cylinder are prepared tested with compression loads. It is found that the coconut shell ash applied as an additive greatly affects the properties of fresh concrete. The use of coconut shell ash also has an effect on the initial setting time and final setting time of cement as well. Furthermore, the compressive strength and Modulus of elasticity of self-consolidating concrete are influenced by the use of coconut shell ash as an additive for various test ages

Kajian Kelayakan Usahatani Jamur Tiram Putih (Pleurotus ostreatus) (Studi Kasus Pada UMKM Agro Jamur Lombok Kecamatan Gunungsari Kecamatan Lombok Barat)

White oyster mushrooms are one of the alternative foods that can be produced by farmers to meet the food needs of the community. The purpose of this study was (a) to determine the costs incurred by farmers in white oyster mushroom farming activities, and (b) to determine the feasibility of white oyster mushroom farming in Lombok Agro Mushroom UMKM. This study uses a descriptive method, where data sources include primary data and secondary data. The number of respondents in this study was 3 people consisting of business owners and employees. The analysis tools in this study used the R / C Ratio and B / C Ratio. The results showed that the total cost incurred in this farming business was IDR 2,633,763, while the income obtained was IDR 6,000,000 and income was IDR 3,366,237. This white oyster mushroom farming business is feasible to run because the R / C Ratio value> 1 and the B / C Ratio value> 0 were obtained. The R / C Ratio value obtained in this white oyster mushroom farming business was 2.28 and the B / C Ratio value was 1.28

Profil Asam Lemak Maggot BSF Yang Dibudidaya Menggunakan Media Pakan Sumber Hewani dan Nabati

The study aimed to obtain data on the fatty acid profile of BSF maggot cultived using animal and plant-based media.  The study was conducted through experimental stages and laboratory analysis.  The experimental stage was carried out through BSF maggot cultivation using two media treatments, namely animal and plant-based media.  The laboratory analysis stage began with the preparation of maggot samples to become mash.  Next, a fatty acid profile analysis was conducted at PT. Saraswanti Indo Genetech Surabaya using Gas Chromatography-Mass Spectrometry (GC-MS) to determine the type of fatty acids based on differences in volatility and molecular mass.  The GC-MS results will provide quantitative data on the type and proportion of fatty acids continued in maggots.  The parameters observed were water content, crude fat, and the fatty acid profile of maggots.  The collected data were tabulated and discussed descriptively.  Based on the results of laboratory analysis, it was found that maggots cultivated using animal media contained and average water content of 61.64% and crude fat of 55.48% (DM basis).  Maggots cultivated using animal-source media contained higher unsaturated fatty acids than plant-source media.  The highest laurate content was found in maggots cultivated using plant media (13.55%) compared to animal  media (4.27%).  The conclusion of this study is that the fatty acid profile is influenced by the growth media used, animal media will produce maggots with higher unsaturated fatty acids plant media will produce maggots with higher saturated fatty acids, especially lauric aci

Seed Bank Gulma Pada Beberapa Kedalaman Tanah Tegakan Jambu Mete di Lahan Kering

The dynamics of weed invasion in cashew guava is influenced by the potential of the standing soil as a weed seed bank. Therefore, research was carried out which aimed to examine weed species that had not yet grown because environmental factors were not yet supportive. The first research used a descriptive method and collected data in the field using an exploratory survey method. The second research used an experimental method, by observing the potential of various soil depths of cashew stands as a weed seed bank. The research results showed that 17 weed families were found in cashew plantations, consisting of 2 Ciperaceae species, 9 Poaceae species and 21 broadleaf species. The highest diversity, population and ability to grow simultaneously Weed bank seed occurs at a soil depth of 0 ± 30 cm, then decreases at a soil depth of > 30 ± 40 cm and is very low at a soil depth of > 40 ± 50 cm. Seed bank weed species which are always dominant at various soil depths are dominated by poaceae and broad-leaf weeds so that the number of species, the percentage that grows and the dry biomass weight is significantly higher than that of sedge weeds. The size of the seed bank is determined by the combination of seeds produced by previously growing weeds. So weed seeds will remain a problem as long as there is a supplier for these seeds