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Morphological Characteristics of Local Varieties of Tobacco Applied with Biochar-Based Slowrelease Fertilizer on Clay Textured Soils . Sukardi, Sukardi; Sukmawati, Sukmawati; Qadri, Sri Nur; Rahim, Iradhatullah; Zamzam, Syamsiar
Urecol Journal. Part D: Applied Sciences Vol. 5 No. 2 (2025): August-Dec
Publisher : Konsorsium LPPM Perguruan Tinggi Muhammadiyah 'Aisyiyah (PTMA) Koordinator Wilayah Jawa Tengah - DIY

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Abstract

Local tobacco has an important role in the kretek cigarette industry in Indonesia, because 80% of kretek cigarettes are made using local tobacco. However, in some areas, the quality of local tobacco remains low due to inefficient fertilisation. Using slow-release fertiliser can increase the efficiency of nutrient uptake by plants. This Research aims to examine the use of biochar-based slow-release fertiliser on the morphological characteristics of tobacco plants. The Research method was a field experiment using a randomised block design to test the SRFbiochar SP36 fertiliser treatment. The treatments tested were SRFbiocharSP36 as basic fertiliser, SRF-BiocharSP36, SRF-biocharSP36+Cow urine and SRF-BiocharSP36+Cow urine+Azotobacter on tobacco morphological characters, including: plant height, number of leaves, stem diameter, flag leaf angle and wet weight of tobacco leaves. The Research found that SRF-BiocharSP36, used as a basic fertiliser, produced the best results and significantly affected plant height (68.60 cm) and stem diameter (19.39 mm). Apart from that, this formula gave the best results for the number of leaves (24) and the wet weight of leaves (44.92 g).
Pertumbuhan Vegetatif dan Generatif Varietas Tembakau Lokal dan Unggul Berdasarkan Karakteristik Morfofisiologis Qadri, Sri Nur; Abd Rahim; Andi Muliarni Okasa
Agritrop : Jurnal Ilmu-Ilmu Pertanian (Journal of Agricultural Science) Vol. 23 No. 2 (2025): Agritrop: Jurnal Ilmu-Ilmu Pertanian
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/agritrop.v23i2.4406

Abstract

Upaya peningkatan kualitas dan produktivitas tembakau secara berkelanjutan memerlukan pemahaman terhadap faktor genetik dan karakter morfofisiologi tanaman. Penelitian ini bertujuan menganalisis pertumbuhan vegetatif dan generatif beberapa varietas tembakau lokal dan unggul berdasarkan karakter morfofisiologi sebagai dasar seleksi varietas adaptif berdaya hasil tinggi. Penelitian dilaksanakan di Kebun Percobaan Fakultas Pertanian, Peternakan, dan Perikanan Universitas Muhammadiyah Parepare pada Januari–Juni 2025 menggunakan Rancangan Acak Kelompok non-faktorial dengan empat varietas, yaitu Ico Lalo, Ico Sse, Kemloko, dan Prancak-95. Hasil penelitian menunjukkan bahwa parameter fisiologis berupa jumlah dan kerapatan stomata berbeda nyata antar varietas. Varietas Ico Lalo menunjukkan performa pertumbuhan terbaik berdasarkan kecenderungan nilai rerata karakter vegetatif dan generatif. Karakter morfofisiologi, khususnya stomata dan kandungan klorofil, berpotensi digunakan sebagai indikator seleksi varietas tembakau adaptif berdaya hasil tinggi.
Analysis of Vegetative Growth of Tobacco Plants (Nicotiana tabacum L) Using Azotobacter and Biohumic Media Baharuddin, Baharuddin; Rahim, Iradhatullah; Zamzam, Syamsiar; Sumawati, Sumawati; Qadri, Sri Nur
Urecol Journal. Part G: Multidisciplinary Research Vol. 5 No. 2 (2025): August-Dec
Publisher : Konsorsium LPPM Perguruan Tinggi Muhammadiyah 'Aisyiyah (PTMA) Koordinator Wilayah Jawa Tengah - DIY

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Abstract

The dependence of tobacco farmers on synthetic chemical fertilizers for many years has led to a decline in soil quality and crop yields in the long term, One of the main challenges in tobacco production is to produce quality seeds that can optimally support crop productivity. The research method used a random design of a non-factorial group, each treatment consisted of 3 treatments tested, namely 4 combinations of planting media, namely P0 (Control), P1 (Azotobacter), P3 (Biohumic), P4 (Azotobacter+Biohumic). The results obtained in this study showed that the best results in the combination treatment of azotobacter and biohumic consistently gave the best results on all plant growth observation parameters, this shows a significant synergistic effect between nitrogen fixation by azotobacter and increased nutrient availability by biohumic