ABSTRACT Orchid (Dendrobium sp.) is one of the largest orchid genera, boasting over 2,000 species. The beauty of the orchid flower makes this a valuable economic commodity. One of the challenges in orchid cultivation is the acclimatization process following in vitro culture. Unsuccessful propagation attempts are often due to the orchid's lack of adjustment or inability to adapt to the exte…
ABSTRACT This study aims to determine an effective concentration of areca nut seed flour extract on the mortality of pod borer (Maruca vitrata Fabricius) in the laboratory. The research was conducted experimentally using a completely randomized design (CRD) consisting of five treatments and four replications, resulting in a total of 20 experimental units. The treatments included the applic…
ABSTRACT Upland rice (Oryza sativa L.) is a staple food crop that produces rice, which serves as the primary food for 95% of Indonesia's population. Its rich nutritional content makes it crucial for fulfilling the food needs in Indonesia; however, rice production has been declining. One solution to increase the production of upland rice is to utilize marginal lands for cultivation. Yet, these …
ABSTRACT Soybean (Glycine max L.) is a source of plant based protein that is affordable for the community. Soybeans are consumed in various forms, such as being processed into soy sauce, soy milk, tempeh, and tofu. The demand for soybeans in Indonesia is still unmet and is supplemented through imports. Based on this, one of the efforts to increase soybean production and productivity is by util…
ABSTRACT Coptotermes curvignathus is a major pest that attacks oil palms in peat soils. The origin of the isolate affects the pathogenicity of the entomopathogenic fungus Metarhizium anisopliae. This study aims to obtain the concentration of entomopathogenic fungus Metarhizium anisopliae local isolate as a bioinsecticide against termites Coptotermes curvignathus, a pest of oil palm. The resear…
ABSTRACT Kenaf (Hibiscus cannabinus L.) is a fiber-producing plant from the bark of its stems, which is used as a substitute for hemp and an alternative for the wood, pulp, paper, and textile manufacturing industries. Kenaf production declined by approximately 13% from 245.5 thousand tons in 2015 to 212.1 thousand tons in 2018. The low production of kenaf is influenced by the limited availabil…
ABSTRACT This study aims to assess the quality of oil palm fruit produced both physically and chemically from different plant ages in Kubu District, Rokan Hilir Regency. The problem faced by farmers in Kubu Sub district is the low price of fresh fruit bunches (FFB) caused by poor quality of oil palm fruit such as FFB size and small fruit weight. The research was conducted using survey method, …
ABSTRACT This research aims to determine the interaction of rice husk biochar and NPKMg fertilizer, and to obtain the best dose for the growth of oil palm seedlings (Elaeis guineensis Jacq.) at the pre nursery stage on top soil media. This research was conducted using a completely randomized design (CRD) factorial consisting of two factors. The first factor of rice husk biochar consists of…
ABSTRACT This study aims to determine the effectiveness of organic extracts of areca nut flour on the mortality of S. exigua in the laboratory. Red onion (Allium ascalonicum L.) is an agricultural commodity that is widely cultivated in lowlands. Increasing demand is not matched by optimal production, partly due to attacks by the pest Spodoptera exigua Hubner, which can cause damage of up t…
ABSTRACT Soybean (Glycine max L.) is a plant that has high nutrition and is the main raw material in various food and industrial products. One of the efforts to increase soybean productivity through the provision of organic matter in marginal lands, such as Inceptisol. The study aims to determine the effect of giving frass black soldier fly (BSF) in increasing nutrient uptake of NPK, growth an…
ABSTRACT Kenaf (Hibiscus cannabinus L.) is a fiber-producing plant with high economic value, especially in the industrial world. Kenaf development is increasingly limited due to limited land and the availability of superior varieties. One way to develop kenaf plants to achive stable and increased production is through genetic improvement namely through plant breeding activities.This study aims…
ABSTRACT This research aimed to determine the interaction and individual effects of goat manure bokashi compost and NPKMg (15-15-15-6-4) fertilizer on the growth of oil palm seedlings in the pre-nursery phase. The study was conducted using a Completely Randomized Design (CRD) with two factors: the dosage of bokashi compost (150, 200, 250 g/polybag) and the dosage of NPKMg fertilizer (0, 0.25, 0…
ABSTRACT Kenaf (Hibiscus cannabinus L.) is a potential fiber crop widely utilized in eco-friendly industries such as textiles, biocomposites, and paper. However, the development of kenaf in Indonesia remains limited due to the lack of superior varieties with high fiber productivity. This study aimed to evaluate the genetic variability, heritability, selection response, and phenotypic corre…
ABSTRACT Providing organic materials such as rice husk biochar can improve soil quality and increase the availability of nutrients that plant roots can absorb. Providing organic materials with NPK fertilization will increase the availability of N, P and K in the soil. This study aims to determine the effect of the combination of rice husk biochar with NPK fertilizer and get the best dose combi…
ABSTRACT Rice (Oryza sativa L.) is the staple food crop in Indonesia, making productivity improvement essential. In Riau Province, the harvested area has not significantly increased rice production, thus proper planting systems and balanced fertilization are required. This study aimed to determine the best combination of biofertilizer supplemented with Mucuna bracteata to reduce the use of…
ABSTRACT Oil palm (Elaeis guineensis Jacq.) is a plant with high economic value because it is one of the producers of vegetable oil. Plant Growth Promoting Rhizobacteria (PGPR) are soil microorganisms that are beneficial for plants and live in the root zone or rhizosphere. The purpose of this study was to determine the effect of the interaction of Humic Acid and PGPR administration, as well as…
ABSTRACT Corn (Zea mays L.) is an important food commodity in Indonesia. However, corn production in Riau Province has declined due to attacks by corn borers (Helicoverpa armigera Hubner), which can damage up to 39.7% of crops. Control is generally carried out using synthetic chemical insecticides that have negative impacts, such as killing natural enemies, resistance, and resurgence. An …
ABSTRACT Oil palm is a leading plantation commodity with high economic value and significantly contributes to national foreign exchange. However, oil palm seedling cultivation faces challenges such as limited fertile growing media and disease attacks, one of which is caused by the fungus Ganoderma boninense, leading to basal stem rot. This study aims to examine the effect of applying biofungic…
ABSTRACT Green mustard (Brassica juncea L.) is a high-economic-value vegetable commodity widely favored by the Indonesian population. However, its cultivation on marginal lands such as inceptisol is limited due to low soil fertility. This study aimed to evaluate the effect of different doses of vermicompost (kascing) organic fertilizer on the growth and yield of green mustard and to determine …
ABSTRACT Soybean plants (Glycine max (L.) Merril) are one of the main food crops in Indonesia after rice and maize. This study aimed to evaluate the effect of rabbit urine liquid organic fertilizer (LOF) and NPK fertilizer on the growth and yield of soybean. The experiment was conducted at the Experimental Farm of the Faculty of Agriculture, Universitas Riau, using a Completely Randomized Desi…