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All Journal Jurnal Kelautan : Indonesian Journal of Marine Science and Technology Jurnal Sains Teknologi dan Lingkungan (JSTL) Jurnal Penelitian Pendidikan IPA (JPPIPA) Agritrop : Jurnal Ilmu-Ilmu Pertanian (Journal of Agricultural Science) CROP AGRO, Scientific Journal of Agronomy Jurnal Gema Ngabdi Jurnal Silva Samalas: Journal of Forestry and Plant Science Jurnal SIAR ILMUWAN TANI Agroteksos Mediagro Jurnal Pepadu
Nihla Farida
Fakultas Pertanian, Universitas Mataram
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Materials Science & Nanotechnology Physics Public Health Social Sciences

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Journal : Jurnal Sains Teknologi dan Lingkungan (JSTL)

 1 
Seed Bank Gulma Pada Beberapa Kedalaman Tanah Tegakan Jambu Mete di Lahan Kering Ngawit, I Ketut; Wangiyana, Wayan; Farida, Nihla
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 11 No. 1 (2025): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v11i1.861

Abstract

The dynamics of weed invasion in cashew guava is influenced by the potential of the standing soil as a weed seed bank. Therefore, research was carried out which aimed to examine weed species that had not yet grown because environmental factors were not yet supportive. The first research used a descriptive method and collected data in the field using an exploratory survey method. The second research used an experimental method, by observing the potential of various soil depths of cashew stands as a weed seed bank. The research results showed that 17 weed families were found in cashew plantations, consisting of 2 Ciperaceae species, 9 Poaceae species and 21 broadleaf species. The highest diversity, population and ability to grow simultaneously Weed bank seed occurs at a soil depth of 0 ± 30 cm, then decreases at a soil depth of > 30 ± 40 cm and is very low at a soil depth of > 40 ± 50 cm. Seed bank weed species which are always dominant at various soil depths are dominated by poaceae and broad-leaf weeds so that the number of species, the percentage that grows and the dry biomass weight is significantly higher than that of sedge weeds. The size of the seed bank is determined by the combination of seeds produced by previously growing weeds. So weed seeds will remain a problem as long as there is a supplier for these seeds.
Prediksi Kehilangan Hasil Jagung (Zea mays L.) Akibat Kompetisi Gulma Poaceae di Lahan Kering Ngawit, I Ketut; Farida, Nihla; Azhari, Anjar Pranggawan
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 10 No. 1 (2024): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v10i1.634

Abstract

This research aims to determine the Poaceae weed species that have a significant effect on corn yield loss in dry land. The research method was descriptive and data collection using survey techniques in 10 sample plots measuring 1 m2 which were placed using random sampling. Observation parameters include the number of species and populations of weeds, the population of corn plants in plot-1 and the dry biomass weight of weeds and corn in plot-1. Quantitative data analysis by calculating relative density, relative frequency and relative dominance values ​​to calculate the importance value index and Summe Diminance Ratio (SDR). The results showed that the diversity, evenness, dominance and abundance of Poaceae weeds in corn plants in dry land was high. So it was found that seven species of weeds were dominant and continued to exist while the corn was growing, namely Paspalum vasginatum Sw., Leersia hexandra Sw., Digitaria longiflora (Retz.) Koel., Digitaria ciliaris (Retz.) Koel., Cynodon dactylon L., Eleusine indica Gaertn., and Panicum repens L. The competitiveness and ability to reduce corn yields of the weeds Paspalum vasginatum, Leersia hexandra and Digitaria longiflora are higher than other weeds, so that corn yield losses due to competition reach 16.45%, 7.48% and 4.40%. The weeds Brachiaria reptans, Axonopus compressus and Echinochloa colonum do not need to be controlled in corn after the plants are 45 DAT, because their competitiveness and ability to eliminate crop yields is very low.
Co-Authors A. Wires yamsi, Ahmad Jupri Anjar Pranggawan Azhari Anugrawati, Dwi Ratna Astam Wiresyamsi Cahyani, Karnila Elsa Fitriah Harmi, Juni I Gusti Made Kusnarta I Ketut Ngawit I Ketut Ngawit I Ketut Ngawit I Ketut Ngawit, I Ketut I Putu Silawibawa Idris dan Uyek Malik Yakop Ita Nirmala Juni Harmi Jurnal Pepadu M. Dahlan M. Zairin Ni Made Laksmi Ernawati, Ni Made Laksmi Novita Hidayatun Nufus Nunik Cokrowati Pande Komang Suparyana Rukmini Kusmarwiyah Rukmini Kusmarwiyah Suliartini, Ni Wayan Sri V.F.A. Budianto Wayan Wangiyana Yuniarlin Hilmi Farnani Zubaidi, Akhmad Zubaidi, Akhmad