ABSTRACT Phosphorus (P) is an essential nutrient for plants, but its availability in soil is often limited due to its binding with soil minerals such as Fe and Al. The availability of P in paddy fields is strongly influenced by soil pH, organic matter, and redox conditions. Available P can be measured using various extraction methods, including Bray I and Bray II. This study compared the effec…
ABSTRACT Shallot (Allium ascalonicum L.) is a high-value horticultural crop widely used as a cooking ingredient and for its medicinal properties. However, its cultivation in Riau Province faces challenges due to suboptimal soils like Inceptisols, which are deficient in essential nutrients, particularly potassium (K). This study aimed to examine the effect of potassium fertilizer on the growth …
ABSTRACT This study aims to examine the interaction and optimal dosage of solid compost and palm oil boiler ash, as well as the effects and optimal dosages of solid compost and palm oil boiler ash on the growth and yield of upland rice (Oryza sativa L.) in podzolic medium. The research was conducted experimentally using a factorial completely randomized design (CRD) consisting of factor I …
This research aimed to evaluate the potential of marine photosynthetic bacteria (MPB) and their biopigment extracts as antimicrobial agents against two major aquatic pathogens, namely Aeromonas hydrophila and Staphylococcus aureus. Six MPB isolates were cultured and incubated to produce biopigments. Biopigments are natural pigments from microorganisms that may have antimicrobial and antioxidant…
Jungga lime (Citrus jambhiri L.)/Sundai acid/Limau kuit is a natural ingredient that contains alkaloids, saponins, steroids, tannins, flavonoids, ascorbic acid, essential oils, and limonene which are antibacterial. This research was conducted from August 2024 until April 2025 at the Laboratory of Fish Diseases and Parasites, Faculty of Fisheries and Marine,RiauUniversity. This research aimed to…
Koi fish is a very common decorative fish comodity in Indonesia because of its beautiful color and the high pricing. Koi fish culture were commonly facing problem becuse of its slow growth and its high sensitivity on water quality, therefore a precaution to prevent it was done by using filtration system. Filtration system is a filtering process to remove dense particle and chemical substance in…
Asian redtail catfish (Hemibagrus nemurus) is an economically important freshwater fish in Indonesia with promising market prospects. A major constraint in Baung catfish aquaculture is the limited availability of seeds due to the low survival rate of larvae. One critical factor influencing the success of larval rearing is the provision of appropriate feed, considering aspects such as type, size…
Paku Beach is a tourist location that has a river estuary that supplies organic water materials. Macrozoobenthos are basic aquatic organisms that utilize organic materials as a food source while also helping the mineralization process of waters. This study aims to determine the type, abundance and relationship of sediment organic materials to the abundance of macrozoobenthos. This study was con…
This study aims to get the best stocking density of Climbing perch reared with a recirculation system using taiwanese mackerel biofilters. The method used was a 1-factor Completely Randomized Design (CRD) experiment, 5 levels of treatment and 3 replications, so that the experiment set amounted to 15 units. The treatments were P1 (48 fish/80 L), P2 (52 fish/80 L), P3 (56 fish/80 L), P4 (60 fish/…
ABSTRACT Rumbai Barat District is a center for cayenne pepper production in Pekanbaru City. Cayenne pepper farming experiences problems that affect the sustainability of farming businesses such as non-own land, pest and disease attacks, and fluctuations in selling prices. The purpose of this study was to analyze and determine the sustainability status of cayenne pepper farming businesses and t…
ABSTRACT Rice is one of the most important food crops because the existence of rice commodities is indeed quite taken into account so that rice is still maintained and fought for in Indonesia. Data from the Central Statistics Agency (BPS) of Riau Province in 2023, Rokan Hilir Regency is a center for rice production that has quite a lot of potential in Riau Province. Rimba Melintang Distric…
ABSTRACT This study aims to analyze the role of farmer groups in increasing vegetable production in Air Dingin Subdistrict, Bukit Raya District, Pekanbaru City. Farmer groups play a strategic role in strengthening farmers' institutions, serving as a learning class, a forum for cooperation, and a production unit. The research employed a quantitative approach, with purposive sampling used to sel…
ABSTRACT This study aims to analyze the structure, functions, and efficiency of the marketing channels of independent oil palm fresh fruit bunches (FFB) in Kota Raya Village, Kunto Darussalam District, Rokan Hulu Regency. The research employed a quantitative approach using a survey method. A total of 60 independent farmers, five collectors, and two wholesalers (RAM) were selected through …
ABSTRACT Broiler chicken farming has great potential to be developed as a source of animal protein that is increasingly needed along with population growth. The increasing demand for broiler chicken meat requires sustainable business management from various aspects, including economic, ecological, social, technological, and partnership. However, this business still faces a number of challenges…
ABSTRACT Tapung Subdistrict is one of the subdistricts with the largest broiler population and the largest number of partnered broiler farmers in Kampar Regency. With the increasing market demand for broiler chickens, business opportunities in broiler farming are automatically getting better. The main problems of broiler farming are related to large capital, fluctuations in the prices of f…
ABSTRACT This study aims to analyze the financial feasibility and sensitivity to changes in input and output prices and the level of production decline in the Mujiman Snack onion cracker agroindustry in Sungai Beringin Village, Rengat District, Indragiri Hulu Regency. The research method used is the case study method. The data information used is primary data and secondary data. The inform…
ABSTRACT This study aims to design and implement a three-phase induction motor control system based on PLC and HMI as a learning medium for the Practical Course on Electric Motor Control. The system is assembled on an acrylic board mounted on a welded and painted metal frame, consisting of key components such as a PLC, HMI, contactors, TOR, and a three-phase induction motor. The PLC functions …
ABSTRACT Indonesia is a country located on the equator that has a variety of alternative energy sources, one of which is water that can be used for energy needs in industry, transportation, commercial, and households. Riau is one of the provinces where the streams and waterfalls are still not fully utilized by the community. Micro-hydro power plants (MHPs) are one of the renewable energy …
ABSTRACT Lemang is a traditional Indonesian food cooked by roasting glutinous rice in bamboo over an open fire. The manual roasting process requires a long duration and constant attention to ensure even cooking, often resulting in inefficiencies and uneven doneness. To address these issues, a closed-type rotary lemang roasting machine was designed and developed in this final project. The aim o…
ABSTRACT This study aims to analyze the financial feasibility of Pak Naman's Crackers Business in Padang Luas Village, Tambang District, Kampar Regency. This business is a small industry that produces and markets various types of local crackers. The main problems faced include increasing raw material prices, financial records that are not yet in accordance with standards, and a comprehensive f…