Komparasi Efek Biochar Sekam Padi Dan Bonggol Jagung Terhadap Karakter Fisikokimia Tanah Untuk Pertumbuhan Padi Toleran Salinitas Di Lahan Pesisir

Aisyah, Nur Azmina (2026) Komparasi Efek Biochar Sekam Padi Dan Bonggol Jagung Terhadap Karakter Fisikokimia Tanah Untuk Pertumbuhan Padi Toleran Salinitas Di Lahan Pesisir. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pemanfaatan lahan salin pesisir sebagai alternatif pengembangan pertanian menghadapi tantangan cekaman salinitas yang menurunkan produktivitas padi. Penelitian ini membandingkan efektivitas biochar sekam padi dan bonggol jagung terhadap sifat fisikokimia tanah salin serta respons pertumbuhan padi toleran salinitas Biosalin 2, menggunakan rancangan acak lengkap dengan parameter sifat tanah (pH, EC, C-organik, N-total, P-total, K-total, Kadar Air, dan KTK) dan pertumbuhan tanaman pada fase vegetatif, reproduktif, dan pematangan. Hasil penelitian menunjukkan biochar bonggol jagung lebih efektif menurunkan EC tanah (3,32 dS m⁻¹, turun 83,4%) dan meningkatkan pH mendekati netral (6,91) dibandingkan biochar sekam padi (EC 4,43 dS m⁻¹; pH 6,58), disertai kandungan N, P, dan K-total yang lebih tinggi, sedangkan biochar sekam padi lebih unggul dalam kadar air tanah (13,44%) dan KTK (12,24 me/100 g). Pada fase vegetatif, biochar bonggol jagung menghasilkan tinggi tanaman signifikan lebih besar (65,60 cm; p = 0,017). Pada fase pematangan, biochar bonggol jagung unggul nyata pada jumlah gabah per malai (78,10 butir; p = 0,002) dan persentase gabah isi (19,89%; p < 0,001), sedangkan biochar sekam padi unggul pada biomassa akar (39,60 g; p = 0,015). Hasil penelitian menunjukkan biochar bonggol jagung merupakan jenis biochar paling optimal dalam meningkatkan produktivitas padi toleran salinitas di lahan pesisir, sekaligus mendorong pemanfaatan limbah pertanian sebagai bahan bernilai guna tinggi untuk mendukung ketahanan pangan nasional.
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The utilization of coastal saline land as an alternative for agricultural development faces salinity stress challenges that reduce rice productivity. This study compared the effectiveness of rice husk biochar and corn cob biochar on the physicochemical properties of saline soil and the growth response of the salinity-tolerant rice variety Biosalin 2, using a completely randomized design with soil parameters (pH, EC, organic carbon, total N, total P, total K, moisture content, and CEC) and plant growth observed across the vegetative, reproductive, and ripening phases. The results showed that corn cob biochar was more effective in reducing soil EC (3.32 dS m⁻¹, an 83.4% reduction) and raising pH closer to neutral (6.91) compared to rice husk biochar (EC 4.43 dS m⁻¹; pH 6.58), accompanied by higher total N, P, and K content, whereas rice husk biochar was superior in soil water content (13.44%) and CEC (12.24 me/100 g). During the vegetative phase, corn cob biochar produced a significantly greater plant height (65.60 cm; p = 0.017). During the ripening phase, corn cob biochar significantly outperformed in the number of grains per panicle (78.10 grains; p = 0.002) and filled grain percentage (19.89%; p < 0.001), while rice husk biochar was superior in root biomass (39.60 g; p = 0.015). These findings indicate that corn cob biochar is the most optimal biochar type for enhancing the productivity of salinity-tolerant rice in coastal saline land, while also promoting the utilization of agricultural waste as a high-value material to support national food security.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Biochar, Bonggol Jagung, Biosalin 2, Lahan Salin, Sekam Padi. Biochar, Biosalin 2, Corn Cob, Rice Husk, Saline Soil.
Subjects:	Q Science > QH Biology > QH541 Ecology
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Biology > 46101-(S2) Master Thesis
Depositing User:	Nur Azmina Aisyah
Date Deposited:	24 Jul 2026 08:02
Last Modified:	24 Jul 2026 08:02
URI:	http://repository.its.ac.id/id/eprint/137319

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