Article Per Year (5 Year)
p-Index From 2021 - 2026
0.817
P-Index
This Author published in this journals
All Journal Jurnal Riset Perkebunan (JRP) Jagur: Jurnal Agroteknologi AGRONES: JOURNAL OF AGRICULTURE, AGRIBUSINESS WELFARE, TECHNOLOGI, HUMANITY, ENVIRONMENT, SOCIAL AND ECONOMY
Siska Efendi
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Energy Environmental Science Social Sciences

Published : 6 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 6 Documents
Search

 1 
Pengaruh Frekuensi Irigasi terhadap Pertumbuhan dan Hasil Padi (Oryza sativa L.) Chairil Ezward; Siska Efendi; Jauharil Makmun
JURNAL AGROTEKNOLOGI UNIVERSITAS ANDALAS Vol 2 No 1 (2018)
Publisher : Program Studi Agroteknologi Fakultas Pertanian Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jagur.2.1.17-24.2018

Abstract

The fluctuations of the availability of water is a matter of in growth this licensing process for rice. The availability of the water sufficient is advantages for the growth of plants rice farming. The rice crop need the different volume for each phase the real sector growth reached. Water had a very important role at the time of the nymph formation and initiation panicles . This studied attempts to watchful over the influence of the waterworks frequency on the growth and production of rice fields with water. Design was used in this research was Random design a group ( a shelf ) non factorials consisting of 5 treatment and 3 preparation of test questions, Namely A = ( times inundated by persistently even rising up early ), B = the frequency of of waterworks 4 once over days, C = the frequency of of waterworks 8 once over days, D = 12 day once upon the irrigation system, and E = frequency irrigation 16 days once. Data was analyzed statistically each observation treatment, and when markedly dissimilar was continued by test said different real give an bnj ) the first 5 percent. Based on the research, with analysis design a rack non factorials, can be concluded that the use of frequency irrigation to optimize its growth and the production of in plants rice yield real impact to higher plants and heavy grain dry. Treatment best conditions exist on treatment b ( the frequency of of waterworks 4 once over days ) with high in plant 141 , 33 and weighed of dried grain pt pgn promised to supply 37,78 the most ten grams of / a clump of.
Keanekaragaman Serangga Predator Pada Perkebunan Kelapa Sawit Di Lahan Bukaan Baru Dan Bukaan Lama Danial, Ahmad; Siska Efendi
Jurnal Riset Perkebunan Vol. 1 No. 1 (2020): Jurnal Riset Perkebunan (JRP)
Publisher : Jurusan Budidaya Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrp.1.1.37-44.2020

Abstract

The diversity of predatory insects was studied in recent and old lands in Dharmasraya from April to July 2017. The objective was to study the diversity of predatory insects between recent and old plantations of oil palm. The sampling locations were Pulau Punjung, Timpeh and Koto Besar Districts. The method used in the study was Purposive Random Sampling. Insects were collected using the insect net and chemical knockdown. Identification was carried out at the Laboratory of Insect Bioecology, Faculty of Agriculture, Andalas University. Diversity and evenness of predatory insects in several oil palm plantations in Dharmasraya Regency was classified as medium, namely (H '<1), and (E <0.76). There were 11 families and 6 orders found. The abundant family was formicidae.
Keanekaragaman Serangga Pengunjung Bunga Kelapa Sawit Aksesi Kamerun Dan Angola Siska Efendi; Dewi Rezki
Jurnal Riset Perkebunan Vol. 2 No. 2 (2021): Jurnal Riset Perkebunan (JRP)
Publisher : Jurusan Budidaya Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrp.2.2.89-96.2021

Abstract

Cameroon and Angola, accession palms oil, were two plants with different flower architectures such as bunch size, bunch length, number of spikelets and flowers, and volatile compounds produced. The difference in flower characteristics was thought to affect the presence of flower-visiting insects in the two palm oil accessions. The study aimed to determine the insects that visit Cameroon and Angola palm oil flower accessions. Insects that visit flowers were collected directly, using yellow pan traps, swing nets, and aspirators. Collected flower-visiting insects were identified as species. Diversity and evenness were calculated using the Shannon diversity index and the Simpsons’ evenness. The total number of flower-visiting insects collected was 2039 individuals. In the Angola accession, 150 individuals were found consisting of 5 orders, 10 families, and 14 species. Insects that visited Cameroon’s accession of palm oil flowers were 1889 individuals consisting of 8 orders, 16 families, and 22 species. Angola accessions’ diversity and evenness index were higher than Cameroon’s, namely 1.50; 1.14 and 1.14; 0.52. Flower-visiting insects that act as pollinators were Elaeidobius kamerunicus, Pyroderces Sp, and Thrips hawaiiensis.
Pengaruh Kompos, Bahan Humat dari Batubara tidak produktif dan Pupuk Buatan Terhadap Bibit Kakao (Theobroma cacao) pada Oxisol Dewi rezki; Siska Efendi; Herviyanti
Jurnal Riset Perkebunan Vol. 3 No. 1 (2022): Jurnal Riset Perkebunan (JRP)
Publisher : Jurusan Budidaya Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrp.3.1.38-47.2022

Abstract

Organic matter has a very important role in determining the level of soil fertility, especially in marginal soils such as Oxisol which is widespread in Indonesia. Organic matter that is commonly used requires large amounts and has the ability to react relatively slowly in the soil. Therefore, it is necessary to make efforts to obtain organic material that reacts quickly in the soil, such as humic material extracted from lignite. In this study, cocoa (Theobroma cacao) was used as an indicator plant. Cocoa is one of the plantation commodities that has a fairly important role in the national economy, especially as foreign exchange for the country and has a relatively stable price. This research was conducted in the form of a pot experiment using a 2 x 4 x 4 factorial design with 3 replications in a divided plot design, so that 32 treatments and 96 experimental units were obtained. From the research results obtained data that the addition of humic materials and compost up to a dose of 4% C-organic combined with artificial fertilizers can increase the availability of nutrients for cocoa seedlings in Oxisol. The best dose of each treatment was the addition of humic material at a dose of 4% C-organic combined with artificial fertilizer 50% of the recommendation and the addition of compost at a dose of 4% C-organic combined with artificial fertilizer 50% of the recommendation. The addition of organic matter can reduce the use of artificial fertilizers up to 50% of the recommendation. The addition of humic materials from unproductive coal can increase the availability of nutrients in Oxisol. Unproductive coal has the potential to increase Oxisol soil fertility.
Diversity Of Predator And Parasitoids Insects On Several Types Of Oil Palm Plantation Ecosystems Denal Putra Melketa; Benni Satria; Siska Efendi
Jurnal Riset Perkebunan Vol. 3 No. 2 (2022): Jurnal Riset Perkebunan (JRP)
Publisher : Jurusan Budidaya Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrp.3.2.66-76.2022

Abstract

Both oil palm plantations boerdering forests and oil palm plantations bordering rubber plantations were studied using purposive random sampling with pit fall traps, sweep nets and yellow pan traps. Species biodiversity was analyzed using the Shanon-Wienner index and the Simpson index. The dominant species was determined using the Important Value Index. This study found 1,683 individuals, 7 orders and 18 families of predatory and parasitoid insects. The Shanon-Wienner diversity index was 2.78 for oil palm plantations adjacent to forest and 2.62 for oil palm plantations adjacent to rubber plantations. While the Simpson diversity index was 1.00 for oil palm plantations adjacent to forest and 0.94 for oil palm plantations adjacent to rubber plantations. The Order Hymenoptera Family Formicidae had the highest Important Value Index (0.58 for oil palm plantations bordering forest and 0.62 for oil palm plantations adjacent to rubber plantations).
Response Of Nilaparvata Lugens (Stal.) Hemiptera; Delpacidae To The Application Of Deltamethrin Insecticides At Sublethal Concentrations Awaluddin, Awaluddin; Waode Siti Anima Hisein; Siska Efendi; La Oge; Cecep Ijang Wahyuddin
Journal of Agriculture, Agribusiness, Welfare, Technology, Humanity, Environment, Social, and Economy Vol. 1 No. 4 (2026): Januari 2026 Edition
Publisher : Fakultas Teknologi Pertanian Unsultra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64690/agrones.v1i4.579

Abstract

The initial population of Nilaparvata lugens was obtained from the field and developed in the entomology and toxicology laboratory of the plant protection department of Halu Oleo University. This study began with mass cultivation of the N. lugens insect pest. This was followed by selecting the LC50 concentration based on mortality at 72 hours after treatment. The results of the probit analysis found an LC50 value 3.16 ml/L for the insecticide deltamethrin. The high recommended concentration found for the insecticide deltamethrin is suspected because it is not recommended for use on N. lugens in rice fields. Increasing the frequency of application at sublethal concentrations (LC10 and LC25) was shown to trigger an increase in the resurgence ratio of 1.50 and 1.70 times, respectively, compared to the control group.
Co-Authors Awaluddin Awaluddin Benni Satria Cecep Ijang Wahyuddin Chairil Ezward, Chairil Danial, Ahmad Denal Putra Melketa Dewi Rezki Herviyanti Jauharil Makmun La Oge Waode Siti Anima Hisein