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All Journal Jurnal Sains Teknologi dan Lingkungan (JSTL) Jurnal Gema Ngabdi
Ni Made Laksmi Ernawati
Program Studi Agroekoteknologi, Jurusan Budidaya Pertanian, Fakultas Pertanian, Universitas Mataram
Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Education Environmental Science Public Health Social Sciences

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Diversitas, Kemerataan, Dominansi dan Potensi Seed Bank Gulma Pada Tanah Perkebunan Rakyat Yang Berbeda Beda Di Lahan Kering I Ketut Ngawit; Nihla Farida; Ni Made Laksmi Ernawati
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 12 No. 1 (2026): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v12i1.1070

Abstract

The research aims to examine the diversity, dominance, equality, and frequency of weed species and to assess the potential of the soil as a weed seed bank in different types of plantations in arid regions. Descriptive research was conducted on plantations for coconuts, cashews, cocoa, coffee, and mixed gardens. Experiments to investigate the potential of the soil as a seed bank for weeds were carried out in the greenhouse of the Agricultural Faculty of Mataram University using a completely randomized one-factor design with five types of soil from the five plantations. The research results show that coconut plantation land and mixed gardens have the highest weed species diversity index and evenness with low dominance. In contrast, cashew, cocoa, and coffee plantation lands show high species dominance with low diversity and evenness, resulting in five highly dominant weed species, namely: P. Conjugatum, A. Compressus, D. Esculentum, B. Spicata, and S. torvum. Coconut plantations and mixed gardens show a significantly higher number of species, populations, and the dry biomass weight of weed grasses and reeds compared to almonds, cocoa, and coffee, as well as a faster growth time of the weed seed bank, reflecting the ecological conditions that support the soil's potential as a weed seed bank.
Demplot Aplikasi Usahatani Ekologis Terpadu Pada Tanah Tegakan Kelapa Di Desa Lendang Nangka Utara Masbagik Lombok Timur Nusa Tenggara Barat I Ketut Ngawit; Wayan Wangiyana; Ni Made Laksmi Ernawati; Ni Wayan Sri Suliartini
Jurnal Gema Ngabdi Vol. 8 No. 1 (2026): JURNAL GEMA NGABDI
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jgn.v8i1.685

Abstract

The implementation of this demonstration field aims to improve the knowledge and skills of farmers in the management of coconut plantations through the application of integrated ecological agriculture carried out on coconut plots by intensively cultivating various types of annual vegetable crops. The activities of the demonstration plots and accompaniment proceeded safely, smoothly, and pleasantly. It has been shown that the initially low level of participation and enthusiasm of the participants was able to increase after taking part in all successive accompaniment and demonstration activities. There is an increase in the knowledge and skills of farmers participating in demonstration plots to manage the soil of coconut plantations through the application of an integrated ecological land management system with intensive tillage, the use of organic fertilizer, and the cultivation of vegetable crops following a cycle and series planting pattern. Intensive management of coconut palm soils, in which several vegetable crops are cultivated, leads to improved growth and yield performance of the coconut palms, thereby increasing the farmers' profit and thus their income. The profit and income of farmers from growing mustard pak choy, red onions, chili, and tomatoes on coconut plantation areas is higher compared to growing long beans, red chili, sweet corn, and spinach. It is recommended to plant pak choi, small chili peppers, tomatoes, and shallots on the ground under coconut palms, using a cycle and row planting system and an application of organic fertilizer at a dose of 20-25 tons ha-1, supplemented with NPK Ponska 100-150 kg ha-1
Co-Authors I Ketut Ngawit Ni Wayan Sri Suliartini Nihla Farida Wayan Wangiyana