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How Educational Flipbooks and Learning Motivation Affect Early Reading Proficiency in First-Grade Kindergarteners Ermaliana Khoirunnisak; Achmad Noor Fatirul; Harwanto
Jurnal Komunikasi Pendidikan Vol 8 No 2 (2024): Jurnal Komunikasi Pendidikan
Publisher : Universitas Veteran Bangun Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32585/jurnalkomdik.v8i2.5292

Abstract

Kindergarten provides early childhood education for children aged 0-6 years, aiming to develop their cognitive, social, and emotional skills through various educational approaches. This study examines the effect of using educational props, specifically flipbooks, and learning motivation on early reading skills in kindergarten children. A quasi-experimental method with a non-equivalent control group design was employed. The study involved two groups of kindergarten students: the experimental group, which used flipbooks, and the control group, which followed a conventional learning model. The results indicated that using flipbooks significantly improved early reading skills compared to the conventional method. Additionally, learning motivation was found to have a significant effect on reading ability. The interaction between using flipbooks and learning motivation demonstrated that their combination significantly enhanced children's reading ability. This study concludes that employing flipbooks and fostering students' learning motivation can improve the early reading skills of kindergarten children. Therefore, integrating flipbook and emphasizing learning motivation can have a significant and positive impact on early reading comprehension skills in kindergarten students, both individually and synergistically.
Plant-based elicitor improves nutrient efficiency and sustains rice yield under reduced fertilizer in a one-season field study HARWANTO HARWANTO; ENY WAHYUNING PURWANTI; JOKO GAGUNG SUNARYONO; NIKEN RANI WANDANSARI
Asian Journal of Agriculture Vol. 10 No. 1 (2026)
Publisher : Smujo International

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/asianjagric/g100179

Abstract

Abstract. Harwanto, Purwanti EW, Sunaryono JG, Wandansari NR. 2026. Plant-based elicitor improves nutrient efficiency and sustains rice yield under reduced fertilizer in a one-season field study. Asian J Agric 10 (1): g100179. https://doi.org/10.13057/asianjagric/g100179. Excessive dependence on chemical fertilizers raises environmental concerns and reduces long-term soil fertility. A plant-based elicitor containing bioactive compounds (flavonoids, phenols, tannins) and phytohormones (IAA, cytokinins, gibberellins) such as Biosaka, has been promising elicitors to enhance nutrient efficiency and crop resilience. A field experiment was conducted in East Java, Indonesia, using a randomized block design with five treatments: 100% inorganic fertilizer (control), 100% inorganic fertilizer + Biosaka, 75% inorganic fertilizer + Biosaka, 50% inorganic fertilizer + Biosaka, and 25% inorganic fertilizer + Biosaka. Each treatment was replicated four times. Variables measured included plant growth, yield components, straw nutrient content (N, P, K), and soil chemical properties (pH, organic C, available N, P, K). The combination of 50% inorganic fertilizer + Biosaka maintained straw nitrogen comparable to full fertilizer and resulted in higher straw phosphorus content. The combination of 100% inorganic fertilizer + Biosaka produced the highest straw Kalium (0.53%) and milled rice weight (454.41 g 2 m-2). Biosaka treatments were associated with higher soil pH (6.30), organic carbon (0.99%), and available N and K compared to non-Biosaka treatments. Biosaka supplements have not compensated for the nutrient deficiency in the treatments with excessive fertilizer reduction (≤25%). It resulted in lower nutrient content and reduced milled rice weight (265.09 g 2 m-2). This study provides novel evidence that integrating Biosaka treatment with 50% inorganic fertilizer can sustain rice yield equivalently to the conventional 100% inorganic fertilizer application.
Keragaman Arthropoda pada Teknologi Bujangseta di Tanaman Jeruk Siam Lisa Navitasari; Harwanto Harwanto; Joko Gagung Sunaryono; Eny Wahyuning Purwanti
Jurnal Ilmu Pertanian Indonesia Vol. 29 No. 4 (2024): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.29.4.590

Abstract

Bujangseta is a technology used throughout the year to produce citrus fruits. This technology has economically succeeded in increasing the income of citrus farmers by 23.5%. Sustainable management of bujangseta technology is neede, one of which is maintaining the sustainability of the agroecosystem. A stable agroecosystem ensures the availability of ecosystem services through nutrient cycling and the natural control of pest and disease populations. The stability of agroecosystems is coherent with the high biodiversity of arthropods. This study aims to evaluate the effect of applying the citrus plant bujangseta in Karangwidoro village and Krajan village, Dau District, Malang Regency, East Java, from June to December 2022. The two application methods were light trapping (lighttrap) and pit trap (pitfall glass), and the results were analyzed using a t-test. The diversity index, species richness index, species evenness index, and dominance index were calculated. The results showed that the detrivores of the Collembola group dominated the diversity of arthropods, the primary pest of the Diaphorina citri, and the predatory arthropods of Paederus sp. and Braconidae. Diversity and community structure of arthopods indicated there at significant differences in diversity, dominance, evenness, and species richness in those two locations. Bujangseta in the Krajan has a higher community structure compared to the Karangwidoro, showing that the ecosystem at the Krajan location is better preserved. Keywords: arthropods, bujangseta, citrus, community structure
Efektivitas Beberapa Media Perbanyakan dan Dosis Aplikasi Trichoderma SP Terhadap Pertumbuhan Selada Keriting (Lactuca Sativa) Nabila Buana Kania; Harwanto; M Saikhu
AGROMAKNA: Jurnal Pertanian dan Peternakan Vol. 1 No. 1 (2026): AGROMAKNA: Jurnal Pertanian dan Peternakan
Publisher : PT ADRIANI MANDIRI PUBLISHER

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This research aims to determine the effectiveness of various propagation media and application doses of Trichoderma sp. on the growth of curly lettuce. The study employs a Factorial Randomized Block Design (RBD) with two factors: propagation media as the first factor and application doses as the second factor. There are 9 treatments: (M1D1 = corn at 25g dose), (M1D2 = corn at 50g dose), (M1D3 = corn at 75g dose), (M2D1 = bran at 25g dose), (M2D2 = bran at 50g dose), (M2D3 = bran at 75g dose), (M3D1 = pellets at 25g dose), (M3D2 = pellets at 50g dose), and (M3D3 = pellets at 75g dose), each with 3 replications. Observations included plant height (cm), number of leaves (leaves), root length (cm), and wet weight (g). The results showed that the 25g dose of bran media produced the best plants in terms of plant height, number of leaves, and wet weight parameters. Meanwhile, the 50g dose of bran media produced the best plants in terms of root length.