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All Journal Jurnal Ilmu Pertanian dan Perikanan (PENARIK) Jurnal Ilmu Agroteknologi Indonesia (JIGRONA)
Hulu, Yanuari
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Immunology & microbiology Other

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Pengaruh Rata-Rata Curah Hujan Terhadap Kapasitas Infiltrasi Dan Stabilitas Tanah Di Wilayah Pertanian Mendrofa, Putra Zato; Hulu, Yanuari
Jurnal Ilmu Pertanian dan Perikanan Vol. 1 No. 1 (2024): PENARIK - Agustus
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/penarik.v2i3.127

Abstract

This research aims to analyze the effect of rainfall on infiltration capacity and soil stability in agricultural areas. Data on rainfall, infiltration capacity and soil stability were collected through direct measurements in the field using a rain gauge and infiltrometer, as well as soil aggregate stability tests in the laboratory. The research results show that high rainfall significantly reduces soil infiltration capacity and accelerates the disintegration of soil aggregates, especially in clay-textured soils. In the rainy season, infiltration capacity decreases by up to 50%, while soil aggregate stability decreases by around 40%. These findings indicate that high rainfall intensity increases the risk of erosion in agricultural areas and affects soil fertility in the long term. To overcome this problem, it is necessary to apply soil conservation techniques, such as planting cover crops and reducing tillage, to improve soil structure and reduce the rate of erosion. It is hoped that the results of this research can become a basis for farmers and policy makers in developing sustainable land management strategies.  
Pengaruh Pemupukan Nitrogen Terhadap Laju Fotosintesis, Kandungan Klorofil, Dan Pertumbuhan Tanaman Jagung (Zea Mays L.) Hulu, Yanuari; Zebua, Helmin Parida; Gulo, Dencervis; Harefa, Wendi Warisman; Hia, Sastra Alberta; Mendrofa, Serlin Jessica
Jurnal Ilmu Agroteknologi Indonesia Vol. 2 No. 1 (2026): JIRGONA - Januari
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/jigrona.v2i1.1318

Abstract

Nitrogen is an essential nutrient that plays an important role in chlorophyll formation and photosynthesis. This study aimed to determine the effect of nitrogen fertilization on photosynthesis rate, chlorophyll content, and growth of maize (Zea mays L.). The research was conducted from October to December 2025 in Dahana Village, Universitas Nias, using a Completely Randomized Design (CRD) with four nitrogen levels and five replications. Observed parameters included plant height, number of leaves, and plant dry weight. Data were analyzed using analysis of variance (ANOVA) and LSD test at the 5% level. The results showed that nitrogen fertilization significantly affected maize growth by increasing plant height, leaf number, and dry weight. However, excessive nitrogen application did not always result in optimal growth. Therefore, appropriate nitrogen fertilization is required to support optimal maize growth.
Co-Authors Gulo, Dencervis Harefa, Wendi Warisman Helmin Parida Zebua hia, sastra alberta Mendrofa, Putra Zato Mendrofa, Serlin Jessica