This study aimed to evaluate the effect of various doses of ZA fertilizer on the growth and yield of shallot plants (Allium ascalonicum L.) of the Bauji variety cultivated using a floating system with bamboo rafts. The research was conducted at the reservoir of the Faculty of Agriculture, Sriwijaya University, Indralaya Utara, Ogan Ilir Regency, South Sumatra, from June to August 2025. The expe…
The low productivity of smallholder oil palm plantations and the suboptimal use of agro-inputs are major challenges in Indonesia. Excessive use of synthetic fertilizers can lead to chemical residue accumulation and increased production costs. This study aimed to analyze the effectiveness of boiler ash as a partial substitute for NPK fertilizer in enhancing the growth of oil palm (Elaeis guineen…
Rice is a major food commodity in Indonesia, however rice production has declined due to a reduction in agricultural land area caused by land conversion. This situation has highlighted the need to utilize non-conventional land, one of which is through the optimization of oil palm plantation areas using an intercropping system. This study aims to identify local upland rice accessions from North …
Oil palm (Elaeis guineensis Jacq.) is a plantation crop that plays a significant role in Indonesia's agricultural sector. Oil palm seedlings require the support of a good growing medium and fertilizer, including soil amendments such as compost. Vermicompost is one organic material that can be used to improve soil. NPKMg (15-15-6-4) fertilizer is a compound fertilizer containing complete macronu…
Shallots (Alium ascalonicum L.) are a horticultural commodity classified as spice vegetables. This study aims to determine the effect of Kâ‚‚SOâ‚„ fertilizer on the growth and yield of shallots of the Bima Brebes variety floating. This study was conducted at the Embung Faculty of Agriculture, Sriwijaya University, North Indralaya, Ogan Ilir Regency, South Sumatra with coordinates 003°13’16â€â€¦
This study aimed to determine the effect of applying oil palm empty fruit bunch (EFB) mulch at different rates per palm on the growth and yield of oil palm. The research was conducted at the agricultural cultivation research field of University Sriwijaya, located in Indralaya Utara, Ogan Ilir Regency, South Sumatra, on 15 years old oil palm plantations. The geographical coordinates of the study…
This study aims to determine the most effective raft model to support the growth and production of Grand Rapids variety lettuce (Lactuca sativa L.) in a floating cultivation system in non-tidal swamplands. The research was conducted using a Randomized Block Design (RBD) with four raft model treatments: bamboo raft (R1), gallon raft (R2), mineral water bottle raft (R3), and organic swamp plant r…
Modern agriculture faces challenges in maintaining sustainable productivity due to the intensive use of inorganic fertilizers and synthetic pesticides. The use of Vernonia cinerea as a botanical pesticide and eggshells as organic fertilizer briquettes is one potential approach to enhance plant growth while maintaining the balance of the arthropod ecosystem in a polyculture system. This study ai…
Robusta coffee (Coffea canephora) is one of Indonesia's important plantation commodities, the propagation of which still faces obstacles when done conventionally. One effort to overcome this problem is through tissue culture techniques. This study aims to determine the effectiveness of the combination of Naphthalene Acetic Acid (NAA) and Benzyl Amino Purine (BAP) concentrations on the growth of…
Rice is an important agricultural commodity that requires adaptive varieties to enhance production, especially in lowland swamp areas with a varied growing conditions. The objective of this study was to evaluate the growth of T3 and TR3 accessions resulted from the crossbreeding of Inpara 8 and Inpago 5 rice varieties, which have good growth and high yield. This study was conducted on shallow s…
Arthropod species diversity plays an important role in maintaining the balance of agricultural ecosystems. This study aims to determine the diversity of arthropod species in cayenne pepper plants that are intercropped with oil palm plants. This observation was conducted at the Palm Oil Research Garden of the Faculty of Agriculture, Sriwijaya University. The results showed that in the cayenne pe…
The presence of refugia plants plays an important role in maintaining the balance of insect communities in agroecosystems. This study aims to analyze the effect of planting Cosmos caudatus refugia on the diversity, abundance, and population characteristics of phytophagous insects in eggplant (Solanum melongena) cultivation. The research was conducted on two treatments: eggplant cultivation with…
Indonesia, as a tropical country, has high agricultural potential, including the economically valuable eggplant (Solanum melongena L.) commodity. However, eggplant production is often disrupted by plant pests, particularly phytophagous insects such as Empoasca sp. and Altica lythri. This study aims to evaluate the effect of Zinnia elegans refugia plants on the population of phytophagous insects…
Eggplant (Solanum melongena) is one of the horticultural crops whose productivity is often distrupted by pest attacks. This study aimed to determine the effect of planting Cosmos caudatus flowers as refugia on the abundance and diversity of entomophagous arthropods, as well as on eggplant productivity. Arthropod sampling was conducted using pitfall traps and pan traps in plost with and without …
This study aims to analyze the diversity of arthropod insects and the role of curly red chili plants (Capsicum annum L.) as refugia in intercropping systems on oil palm plantations. The study was conducted at the Sriwijaya University Oil Palm Research Garden using an experimental method with two treatments, namely oil palm plantations planted with curly red chili peppers and those without curly…
Oil palm (Elaeis guinensis Jacq.) is a major plantation commodity because it has high economic value, high productivity, and a strategic role in supporting national industry and the economy. The sustainability of palm oil production is greatly influenced by the health of the plants, which is threatened by insect pest attacks. One of the important pests on oil palm plants is the beetle, which at…
Red chili is an important crop in Indonesia, but faces high risks from pest attacks and anthracnose disease caused by the fungus Colletotrichum sp. Chitin from crustacean shell waste and turmeric can be used to control this disease. Chitin and compounds in turmeric effectively inhibit fungal growth. This study aims to determine the effectiveness of suppressive microbes against Colletotrichum sp…
Spodoptera litura (Lepidoptera: Noctuidae) represents a significant pest for Brassicaceae crops, with the extent of damage being contingent upon the larval population density. An escalation in population from 0.1 to 3.17 larvae per plant can elevate damage from 2% to 54%. The aim of this research is to determine the attraction of Telenomus sp. to Brassica rapa L. induced by entomopathogenic end…
This study assessed the efficacy of Beauveria bassiana as a bioinsecticide in reducing the infestation and population density of Phyllotreta spp. on Brassica chinensis, considering the increasing resistance of the pest to chemical insecticides and the growing need for sustainable pest management strategies. The findings showed that the bioinsecticide consistently lowered infestation intensity c…
Kelapa sawit merupakan tumbuhan monokotil yang tidak memeiliki akar tunggang, tubuh didaerah tropis. Predator mempunyai jumlah spesies lebih banyak dibandingkan jumlah spesies dari serangga lainnya dalam suatu ekosistem. Tujuan dari peneltian ini adalah untuk mengetahui keanekaragaman spesies dan kelimpahan populasi predator tanaman kelapa sawit yang menghasilkan dan tanaman yang belum menghasi…
Oil palm (Elaeis guineensis Jacq.) is one of the main plantation crops in Indonesia. The aroma of pollen and nectar from male oil palm flowers is attractive to pollinating insects. The lack of male flower availability in oil palm leads to a low population of E. kamerunicus due to habitat and food source limitations. The low population of pollinating insects results in sub-optimal oil palm produ…
Oil palm (Elaeis guineensis Jacq.) is one of the largest plantation commodities in Indonesia. Palm oil productivity depends on the amount of pollen from male flowers that falls onto female flowers. Oil palm pollination is carried out by natural pollinators such as Elaeidobius kamerunicus. The aroma of pollen and nectar from male oil palm flowers is favored by E. kamerunicus because it contains …
Visually identifying nettle caterpillars species is often difficult due to the similarity in shape between species. Therefore, the molecular identification approach using DNA barcoding methods, utilizing multigene mitochondrial markers such as COI, COII, and Cyt b, is expected to provide a more effective and scientific solution for specifically identifying pest species. The purpose of this stud…
Polyculture can increase land resource utilization and reduce the risk of crop failure in a single planting area. Polyculture of maize and shallots can maximize light, water, and nutrients while minimizing their use and increasing land productivity. Melastoma malabathricum and eggshells are thought to be able to fulfill the nutrient requirements of maize and shallots because their high Ca and N…
This research examines the potential of Asystasia gangetica, a type of tropical weed, as a base material for producing organic briquette fertilizer and botanical pesticide enriched with eggshell waste in the context of polyculture cultivation of maize (Zea mays L.) and peanuts (Arachis hypogaea L.). The purpose of this study is to evaluate the extent to which this combination of treatments affe…
In oil palm plantations, the intensive use of pesticides can exert adverse effects on non-target organisms, including pollinating insects. This study aimed to identify the presence of pesticide residues on the bodies of Elaeidobius spp. using Liquid Chromatography–Tandem Mass Spectrometry (LC-MS/MS) and to analyze the relationship between pesticide residue exposure and the abundance of Elaeid…
Plutella xylostella is a pest insect that causes the most damage to plants in the Brassicaceae family, with losses reaching up to US$4–5 billion. This study aimed to examine the attraction of parasitoids to pakchoi that had been induced with the entomopathogenic fungus Metarhizium anisopliae, eggs, and larvae of P. xylostella, and whether these treatments could attract Trichogramma sp. parasi…
Oil palm is an oil-producing plant that is susceptible to pest attacks, especially from the nettle caterpillar. Pest control using pesticides will have a negative impact on the environment and health. Entomopathogenic bacteria are an alternative for more environmentally friendly pest control. To confirm the characteristics of the bacteria, molecular identification can be used. This study aims t…
Plutella xylostella is one of the major pests attacking crops of the Brassicaceae family and causes economic losses of approximately US$4–5 billion worldwide. This research aims to determine the attraction of Trichogramma sp. to pakcoy plants induced with the entomopathogenic fungus Talaromyces diversus. The research was used four seed treatments: for the first treatment, seeds were induced w…
Validation of metagenomic analysis results through molecular identification is important to ensure that the detected entomopathogenic bacteria truly have potential as biological control agents. The objective of this research is to molecularly identify entomopathogenic bacteria in bagworms based on metagenomic data to confirm bacterial species. Bacterial samples were collected at the Bacteriolog…