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Analisis Vegetasi Gulma Dominan Pada Pertanaman Durian (Durio zibethinus. Murr) Di Rumahkay Kabupaten Seram Bagian Barat Vilma Laurien Tanasale; Nureny Goo; Christian W. Patty
AGROLOGIA: Jurnal Ilmu Budidaya Tanaman Vol 15 No 1 (2026): Agrologia : Jurnal Ilmu Budidaya Tanaman
Publisher : Fakultas Pertanian, Universitas Pattimura Ambon, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/agrologia.v15i1.25857

Abstract

Durian (Durio zibethinus Murr.) is a tropical fruit that is highly favored by the Indonesian community and is widely cultivated in various regions, including Rumahkay Village, West Seram Regency. However, durian production in this area has shown a declining trend over recent years. One of the factors contributing to this decline is the presence of weeds, which significantly interfere with the growth and productivity of durian plants. This study aimed to identify the weed species composition forming the vegetation and to determine the dominant weed species in durian plantations in Rumahkay Village. The research was conducted using a vegetation survey method with sample plots measuring 1 m × 1 m established beneath six durian trees. The results revealed that 31 weed species were distributed throughout the durian plantation area. The dominant weed species in Rumahkay Village, based on the highest Summed Dominance Ratio (SDR), was Oplismenus compositus with an SDR value of 17.85%.
Effect Combination Of Nitrogen Fertilizer And Weeding Frequency On The Growth And Harvest Of Chinese Cabbage Tanasale, Vilma Laurien; Goo, Nureny; Patty, Christian W.
CROPSAVER Vol 9, No 1 (2026)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v9i1.70316

Abstract

Productivity of Chinese cabbage (Brassica rapa L.) often declines due to low nitrogen nutrient availability and high competition from weeds in cultivated land. The inappropriate application of nitrogen fertilizer doses can result in suboptimal plant growth, while uncontrolled weeds compete with crops for water, light, nutrients, and growing space. In addition, ineffective weeding frequency may inhibit growth and reduce the yield of Chinese cabbage. Therefore, this study was conducted to analyze the effects of nitrogen fertilizer dosage, weeding frequency, and their interaction on the growth and production of Chinese cabbage as a basis for improving crop cultivation management. The study employed a two-factor Randomized Block Design (RBD) with three replications. The factors consisted of nitrogen fertilizer dosage and weeding frequency treatments. The results showed that nitrogen fertilizer dosage and weeding frequency significantly affected the growth and production of Chinese cabbage. The N2P3 treatment (urea at a dose of 200 kg/ha combined with three weeding applications) produced the best results in suppressing weed growth and increasing Chinese cabbage production.