ABSTRACT Green beans are one of the legume commodities that are widely consumed by the Indonesian people. This plant contains nutrients, including: starch, protein, iron, sulfur, calcium, fatty oil, manganese, magnesium, niacin, vitamins (B1, A, and E). The productivity of green bean plants in Riau Province is still relatively low, only reaching 0.65 tons.ha-1, this is caused by several fa…
ABSTRACT The decline in rice production in Riau Province is a major challenge in meeting food needs, which is caused by low soil fertility, especially in Ultisol soil. This study aims to evaluate the effect of synthetic zeolite and potassium (K) fertilizer on the growth and yield of upland rice (Oryza sativa L.) in Ultisol soil medium. The study was conducted factorially in a Completely Random…
ABSTRACT Sweet corn (Zea mays saccharata Sturt.) began to be developed in Indonesia in the early 1980s. Based on data from the Ministry of Agriculture (2019), corn production in Indonesia from 2016 to 2018 has increased every year. Sweet corn production in 2016 was 23.6 tons, in 2017 it was 28.9 tons and sweet corn production in 2018 increased by 30 tons Fertilization technology should be carr…
ABSTRACT Shallot (Allium ascalonicum L.) is one of the most widely consumed horticultural commodities by the public. It is commonly used as a seasoning ingredient in cooking. Due to its numerous benefits, the demand for shallots in Indonesia, including in Riau Province, remains high. One effort to increase shallot production is through the use of seed-propagated shallots, known as True Shallot…
ABSTRACT Soybean is one of the most important food crop commodities after rice and corn in Indonesia. Soybean production in Indonesia is still low and has decreased from year to year, so it needs to be increased, one of which is through plant breeding. The formation of superior varieties can be done through plant breeding programs. One of the important goals in plant breeding is to obtain high…
White bread is a food made from wheat flour, water, and yeast, which is made through the stages of kneading, fermentation (development), and oven baking. This study aims to determine the effect of shrimp protein concentrate fortification on the quality of white bread and to determine the best concentration of shrimp protein concentrate fortified in white bread. The method used in this study was…
ABSTRACT Pakcoy mustard is one of the most popular vegetables in Indonesia because it tastes good, is nutritious and is rich in vitamin A and vitamin C. Conventional pakcoy cultivation practices that use agrochemicals such as chemical fertilisers and synthetic pesticides can leave residues in the soil and on crops that have the potential to pollute the environment and endanger consumer health.…
ABSTRACT Shallots (Allium ascalonicum L.) is one of the important vegetable commodities in Indonesia and is widely used as a spice and herbal medicine. The many benefits of shallots are the main factors so that plant growth and yield can be increased with the right fertilization strategy. This research was conducted experimentally using a factorial Completely Randomized Design (CRD) consi…
Drying is a crucial stage inthe processing of Chlorella vulgaris powder. C. vulgaris is a microalgae that is rich in high nutrients. In addition to having high nutrients, this microalgae has good chlorophyll and antioxidant content. This can make the processing of C. vulgaris powder very important. The purpose of this study was to determine the chemical content of C. vulgaris powder using oven …
ABSTRACT Amid growing energy demands and the depletion of fossil fuel sources, the use of alternative energy such as charcoal briquettes presents a sustainable and environmentally friendly solution. This reasearch aimed to determine the best ratio from the combination of teak leaves and coconut shells charcoal with sago starch adhesive based on SNI No. 01-6235-2000. The research was conducted …
ABSTRACT This research aims to obtain the best concentration of Sodium Hydroxide (NaOH) in relation to the characteristics of activated carbon from rubber seed shells. This research was conducted experimentally using a Completely Randomized Design (CRD) consisting of 5 treatment levels in the form of NaOH activator concentrations and 3 replications. The treatment in this study consisted of in …
ABSTRACT This study aims to obtain selected characteristics of activated charcoal made from sago bark waste with several concentrations of sodium hydroxide as an activator. This study was conducted using a complete randomized design with four treatments and four replications. The research was conducted experimentally using a completely randomized design (CRD) with one treatment and four re…
ABSTRACT This study aims to determine the interaction between the application of liquid organic fertilizer and NPK fertilizer, as well as to identify the single-factor effects of each treatment on the growth of oil palm seedlings (Elaeis guineensis Jacq.) in the Main Nursery. The experimental design used two factors: the first was liquid organic fertilizer (O) at three levels (O1 = 6 ml/plant,…
ABSTRACT Dry land in Riau Province is dominated by the Red Yellow Podsolic soil type which is characterized by soil color that tends to be yellow to reddish brown with characteristics of having a high degree of acidity, low organic matter content, Fe deficiency, and poor nutrients. One thing that needs to be done to overcome the deficiencies in podzolic soil is to provide coal fertilizer. Podz…
ABSTRACT Eggplant (Solanum melongena L.) is a widely consumed vegetable in Indonesia, either as fresh salad or processed into various dishes. It is rich in nutrients, particularly Vitamin A and phosphorus, making it a potential contributor to improving the nutritional diversity of the population. In Riau Province, the average productivity of eggplant has declined, necessitating improvement…
ABSTRACT Okra is currently gaining popularity among the public. Okra plants are not yet widely cultivated in Riau Province, which results in low okra production. Consequently, okra cultivation has good potential due to increasing market demand. This research aims to determine the interaction effect of Bokashi fertilizer and NPK fertilizer application, as well as the main factors of each treatm…
ABSTRACT Soybeans (Glycine max L. Merrill) are one of the most important food crops, rich in plant-based protein. However, domestic production does not yet meet national demand, due to various factors such as land conversion and low soil fertility. One approach is to incorporate organic materials like biochar, which is the pyrolysis product of agricultural waste such as rice husks, containing …
ABSTRACT The study aims to compare the diversity of soil macrofauna and mesofauna on various land covers on the University of Riau campus. The research location consists of 5 types of land cover including the Arboretum of Riau University, grass land cover, oil palm land cover A (Marihat), experimental garden of the Faculty of Agriculture, Riau University, and oil palm land cover B (Lonsum). Ma…
ABSTRACT Mangosteen plant (Garcinia mangostana L.) is one of fruticulture plants in horticultural plant groups which is mostly rare infected by plant diseases. The data on disease incidence and intensity have been rarely reported so far. This is assumed that the plant has natural resitance systems derived from secondary metabolites compounds such as triterpene, mangostine, tanein, resin, antos…
ABSTRACT The aim of this research is to select and obtain isolates of rhizosphere fungi from mangosteen plants which have high antagonism activity against Phytophthora palmivora, the cause of stem base rot disease of siamese citrus plant and to identify to the genus level. The study was conducted at the Laboratory of Plant Disease, Faculty of Agriculture, University of Riau, Pekanbaru. The res…