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All Journal Jurnal Ilmu Pertanian dan Perikanan (PENARIK) Jurnal Ilmu Agroteknologi Indonesia (JIGRONA)
hia, sastra alberta
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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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Dampak Perubahan Iklim Terdahap Dinamika Air Didalam Tanah Dan Implikasinya Pada Pertanian Gulo, Zefri William; hia, sastra alberta
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.v2i3.128

Abstract

Climate change has caused significant increases in temperature and changes in rainfall patterns, which have an impact on soil water dynamics and agricultural productivity. This research analyzes the relationship between climate change and soil moisture through climate data collection and simulations using the Soil and Water Assessment Tool (SWAT). The research results show that increasing temperature and uneven distribution of rainfall cause a decrease in soil moisture, especially on sandy land and land with steep topography. The implications of this decrease in soil moisture include increased irrigation requirements, reduced crop productivity, and increased risk of erosion. Adaptation strategies such as implementing precision irrigation, using mulch, and managing planting patterns are important to maintain soil moisture and agricultural productivity. By implementing this adaptive approach, it is hoped that the agricultural sector will be able to increase resilience to the impacts of climate change.
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 Gulo, Zefri William Harefa, Wendi Warisman Helmin Parida Zebua Hulu, Yanuari Mendrofa, Serlin Jessica