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Jurnal Agroplasma
Published by Universitas Labuhanbatu
ISSN : 23032944     EISSN : 2715033X     DOI : 10.36987
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Agroplasma pertama kali didirikan dengan nama Jurnal Agroplasma STIPER Labuhanbatu tahun 2014 oleh Program studi Agroteknologi, Universitas Labuhanbatu. Jurnal Agroplasma merupakan media publikasi tulisan asli yang berkaitan dengan Agroteknologi secara luas. Melakukan penerbitan dua (2) kali dalam setahun, yaitu setiap bulan Mei dan Oktober.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Agronomi dan Ilmu Tanaman
Articles 404 Documents
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Pengaruh Pemberian Pupuk Kandang Sapi dan Pupuk Phospor (P) Terhadap Pertumbuhan Vegetatif dan Generatif Tanaman Jagung Manis (Zea mays saccharata Sturt L.) Aris Deo Rangga; Wilna Sari; Santi Diana Putri; Mentari Larashinda
JURNAL AGROPLASMA Vol 13, No 2 (2026): Jurnal Agroplasma Vol.13 No.2 (Oktober 2026)
Publisher : UNIVERSITAS LABUHANBATU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/agroplasma.v13i2.9602

Abstract

Sweet corn (Zea mays saccharata Sturt L.) is a horticultural crop with high economic value; however, its productivity is often constrained by low soil fertility and heavy dependence on inorganic fertilizers. The combined application of organic manure and phosphorus fertilizer is considered a promising strategy to improve plant growth and yield. This study aimed to evaluate the effects of cattle manure and phosphorus fertilizer on the vegetative and generative growth of sweet corn and to determine the interaction between the two fertilizer types. The experiment was arranged in a factorial randomized complete block design with two factors: cattle manure at three application rates (10, 20, and 30 t ha⁻¹) and phosphorus fertilizer (SP-36) at three rates (0, 100, and 200 kg ha⁻¹), with three replications. Observed variables included plant height, leaf number, stem diameter, days to flowering, and ear length. Data were analyzed using analysis of variance at the 5% significance level, followed by Duncan's Multiple Range Test when significant differences were detected. The results showed that cattle manure significantly increased leaf number and ear length and highly significantly affected stem diameter and flowering time, but had no significant effect on plant height. Phosphorus fertilizer did not significantly affect any observed variable, although it showed a positive trend in plant growth. A significant interaction between cattle manure and phosphorus fertilizer was observed only for stem diameter. Overall, the application of cattle manure at 30 t ha⁻¹ produced the best vegetative growth and yield performance, while the combination of 20 t ha⁻¹ cattle manure and 100 kg ha⁻¹ phosphorus fertilizer resulted in the largest stem diameter. Keywords: horticultural, inorganic fertilizers, organic manure and phosphorus fertilizer
Pengaruh Ekstrak Daun Pepaya (Carica papayae ) dalam Mengendalikan Hama Ulat Daun (Spodoptera litura) Pada Tanaman Sawi Zhunnun An Nafri; Siti Hardianti Wahyuni; Dini Puspita Yanty
JURNAL AGROPLASMA Vol 13, No 2 (2026): Jurnal Agroplasma Vol.13 No.2 (Oktober 2026)
Publisher : UNIVERSITAS LABUHANBATU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/agroplasma.v13i2.9888

Abstract

Mustard (Brassica juncea L.) is one of the most widely cultivated vegetable crops in Sumatra. Severe infestations by insect pests can cause extensive leaf damage, leading to significant yield losses and even plant death. This study aimed to evaluate the effectiveness of papaya (Carica papaya L.) leaf extract in controlling the armyworm Spodoptera litura on mustard plants. The research was conducted in Ujung Gurap Village, Batunadua District, Padangsidimpuan City, Indonesia, from November 2025 to February 2026. The experiment was arranged in a Randomized Complete Block Design (RCBD) consisting of five treatments with six replications, resulting in 30 experimental units. The treatments were: A0 = without papaya leaf extract (control), A1 = papaya leaf extract at 100 g L⁻¹ water, A2 = papaya leaf extract at 150 g L⁻¹ water, A3 = papaya leaf extract at 200 g L⁻¹ water, and A4 = papaya leaf extract at 250 g L⁻¹ water. The observed parameters included the percentage of plants infested by S. litura, the number of damaged leaves, and fresh yield. The results showed that increasing the concentration of papaya leaf extract significantly reduced both the number of infested plants and the number of damaged leaves caused by S. litura. The highest fresh yield was obtained from the application of papaya leaf extract at a concentration of 250 g L⁻¹ water, with an average production of 6,650 g. Keywords: botanical insecticide, Brassica juncea, Carica papaya, mustard, Spodoptera litura. 
Pengaruh Perbedaan Dosis Arang Sekam Padi dan Pupuk NPK 16:16:16 Terhadap Pertumbuhan dan Hasil Tanaman Kedelai (Glycine max (L.) Merrill) Varietas Anjasmoro Dida Dwi Maya; Wagiono Wagiono; Rika Yayu Agustini
JURNAL AGROPLASMA Vol 13, No 2 (2026): Jurnal Agroplasma Vol.13 No.2 (Oktober 2026)
Publisher : UNIVERSITAS LABUHANBATU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/agroplasma.v13i2.9439

Abstract

The low production of local soybeans in Indonesia is caused by several factors, such as low soil fertility, the use of uncertified seeds, and unbalanced fertilization that it’s not suitable for plant needs. This study aims to determine the NPK fertilizer 16:16:16 dose that provides the highest growth and  yield for each dose of rice husk charcoal on Anjasmoro soybean plants. The research method used was an experimental method with Randomized Block Design (RBD) factorial, consisting of 9 treatments and repeated 3 times. The first factor was rice husk charcoal, consisting of 3 levels: a0 (control), a1 (10 ton ha-1) and a2 (20 ton ha-1). The second factor was NPK 16:16:16 fertilizer, consisting of 3 levels: n1 (150 kg ha-1), n2 (200 kg ha-1), and n3(250 kg ha-1). The data were analyzed using ANOVA to determine interaction then continued with DMRT test at 5% level. The results showed that there was an interaction between rice husk charcoal and NPK fertilizer on the number of leaves at 35 dap, number of seeds per plant, and weight of seeds per plant. The treatment of 20 ton ha-1 of rice husk charcoal and 250 kg ha-1 of NPK fertilizer yielded the highest result for number of leaves at 35 dap (28,89 leaves), number of seeds per plant (56,44 seeds), and seed weight per plant (5,74 g).Keywords: growth, NPK, rice husk charcoal, soybean, yield
Dampak Vegetasi Tutupan Lahan Terhadap Komunitas Serangga Penyerbuk Pada Tanaman Aren (Arenga pinnata Merr.) di Kecamatan Angkola Barat Anggi Hairani Hasibuan; Dini Puspita Yanty; Siti Hardianti Wahyuni
JURNAL AGROPLASMA Vol 13, No 2 (2026): Jurnal Agroplasma Vol.13 No.2 (Oktober 2026)
Publisher : UNIVERSITAS LABUHANBATU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/agroplasma.v13i2.9949

Abstract

Land cover vegetation plays a critical role in supporting the presence and abundance of pollinator insect communities, which directly influences the pollination success and sap production of sugar palm (Arenga pinnata Merr.). This study aimed to identify the diversity, abundance, and daily activity patterns of pollinator insects associated with sugar palm flowers under varying land cover vegetation in Angkola Barat District, South Tapanuli Regency. An exploratory observational approach with field survey and purposive sampling was conducted on 3 flowering sugar palm trees. Insect visitation activity was observed in the morning (07:00–11:00 WIB) and afternoon (15:00–18:00 WIB) using sweep nets as flower covers, followed by a vegetation inventory in the surrounding area. A total of 1,555 pollinator insects were collected, with higher abundance recorded in the afternoon (818 individuals) than in the morning (737 individuals). All identified insects belonged to the order Coleoptera, comprising 5 families/genera: Staphylinidae (843 individuals; 54.21%), Carabidae (268 individuals; 17.23%), Dermestidae (238 individuals; 15.31%), Cantharidae (178 individuals; 11.45%), and Dryophoridae (28 individuals; 1.80%). The vegetation inventory identified 11 plant species forming canopy stratification (trees, shrubs, and ground cover). The pollinator insect community on sugar palms in the study area was strongly dominated by the Staphylinidae family, exhibiting higher activity in the afternoon. The complexity of the surrounding supporting vegetation contributes to maintaining habitat availability and the stability of the pollination ecosystem.  Keywords: Arenga pinnata, Coleoptera, Land Cover, Pollinator Insects, Relative Abundance

Page 41 of 41 | Total Record : 404

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