Karina Nur Syarafah, - and Omay Sumarna, - and Soja Siti Fatimah, - (2025) SINERGITAS REBUNG BAMBU DAN BATANG PISANG SEBAGAI BAHAN PUPUK ORGANIK CAIR UNTUK PERTUMBUHAN GENERATIF BUAH KOPI ARABIKA. S1 thesis, Universitas Pendidikan Indonesia.
Abstract
Penelitian ini bertujuan untuk mengkaji efektivitas pupuk organik cair berbahan dasar rebung bambu (Dendrocalamus asper), batang pisang (Musa paradisiaca L.), dan sinergitas keduanya pada pertumbuhan generatif tanaman kopi arabika (Coffea arabica L.). Ketiga jenis POC diproduksi melalui proses fermentasi menggunakan larutan EM4. Analisis kandungan nutrisi pada semua jenis POC yang diproduksi dilakukan untuk memperoleh informasi kandungan unsur hara makro dan mikro, C-Organik, serta rasio C/N pada masing-masing POC. Hasil analisis menunjukkan bahwa POC rebung bambu memiliki kandungan unsur makro yang paling tinggi, yaitu nitrogen total (0,05%), kalium (0,16%), dan fosfor (0,02%), serta unsur mikro Fe sebesar 3,88 ppm. Sementara itu, batang pisang menunjukkan rasio C/N yang sangat tinggi (60,0), mengindikasikan lambatnya dekomposisi bahan organik dan rendahnya efisiensi serapan nitrogen oleh tumbuhan. Di sisi lain, POC sinergitas rebung bambu dan batang pisang menunjukkan rasio C/N yang lebih ideal, yaitu 23,7, yang mendukung efisiensi serapan nitrogen oleh tanaman. Penerapan POC pada tanaman kopi arabika dilakukan dengan cara menyemprotkan POC pada seluruh bagian pohon kopi menggunakan kondisi optimum pengenceran POC dan air dari penelitian sebelumnya, yaitu 1:100. Pengamatan pertumbuhan buah dilakukan secara konsisten pada salah satu dahan dari masing-masing pohon dengan interval waktu 10 hari sebanyak 8 kali pemupukan, mulai dari dahan berbakal bunga sampai tumbuhnya buah utuh. Hasil pengamatan terhadap pertumbuhan buah menunjukkan bahwa POC sinergitas rebung bambu dan batang pisang memiliki rata-rata jumlah dan diameter buah kopi yang paling tinggi, yaitu 24 buah dengan diameter 1,05 cm. POC sinergitas juga memiliki konstanta laju pertumbuhan tertinggi, yaitu 0,0542 untuk jumlah buah dan 0,0159 untuk diameter buah. Uji ANOVA menunjukkan tidak terdapat perbedaan yang signifikan antar perlakuan (α=0,25 untuk jumlah buah dan α=0,454 untuk diameter buah). Dengan demikian, ketiga jenis POC dapat dikatakan memiliki efektivitas yang relatif setara dalam mendukung pembentukan buah kopi arabika, dengan keunggulan relatif pada POC sinergitas dari segi keseimbangan nutrisi dan rasio C/N. This study aims to examine the effectiveness of liquid organic fertilizer made from bamboo shoots (Dendrocalamus asper), banana stems (Musa paradisiaca L.), and their synergy on the generative growth of Arabica coffee plants (Coffea arabica L.). The three types of liquid organic fertilizer (POC) were produced through a fermentation process using EM4 solution. The nutritional content of all kinds of liquid organic fertilizers produced was analyzed to obtain information on the content of macro and micro nutrients, C-Organic, and the C/N ratio of each liquid organic fertilizer. The results of the analysis showed that liquid organic fertilizer from bamboo shoots had the highest macronutrient content, namely total nitrogen (0.05%), potassium (0.16%), and phosphorus (0.02%), as well as the micronutrient Fe of 3.88 ppm. Meanwhile, banana stems showed a very high C/N ratio (60.0), indicating slow decomposition of organic matter and low efficiency of nitrogen uptake by plants. On the other hand, the liquid organic fertilizer synergy between bamboo shoots and banana stems showed a more ideal C/N ratio, namely 23.7, which supports the efficiency of nitrogen uptake by plants. The application of POC to Arabica coffee plants was carried out by spraying POC on all parts of the coffee tree using the optimum conditions of POC and water dilution from previous research, namely 1:100. Observations of fruit growth were carried out consistently on one branch of each tree with a 10-day interval for 8 fertilizations, starting from the branch with flower buds until the growth of whole fruit. The results of observations on fruit growth showed that the synergy of POC bamboo shoots and banana stems had the highest average number and diameter of coffee fruit, namely 24 fruits with a diameter of 1.05 cm. The synergy of POC also had the highest growth rate constant, namely 0.0542 for the number of fruits and 0.0159 for the diameter of the fruit. The ANOVA test showed no significant difference between treatments (α = 0.25 for the number of fruits and α = 0.454 for the diameter of the fruit). Thus, the three types of POC can be said to have relatively equal effectiveness in supporting the formation of Arabica coffee fruit, with a relative advantage of the synergy of POC in terms of nutritional balance and C/N ratio.
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| Item Type: | Thesis (S1) |
|---|---|
| Additional Information: | https://scholar.google.com/citations?view_op=list_works&hl=en&user=6H4YcN8AAAAJ ID SINTA Dosen Pembimbing: Omay Sumarna: 6134687 Soja Siti Fatimah: 5976517 |
| Uncontrolled Keywords: | Pupuk organik cair, rebung bambu, batang pisang, kopi arabika, unsur hara, pertumbuhan buah. Liquid organic fertilizer, bamboo shoots, banana stems, arabica coffee, nutrients, fruit growth. |
| Subjects: | L Education > L Education (General) Q Science > QD Chemistry |
| Divisions: | Fakultas Pendidikan Matematika dan Ilmu Pengetahuan Alam > Program Studi Kimia - S1 > Program Studi Kimia (non kependidikan) |
| Depositing User: | Karina Nur Syarafah |
| Date Deposited: | 29 Sep 2025 04:31 |
| Last Modified: | 29 Sep 2025 04:31 |
| URI: | http://repository.upi.edu/id/eprint/140988 |
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