Profil Tanah dan Kandungan Nutrisi Umbi Porang (Amorphophallus muelleri Blume) di Kabupaten Ponorogo

Anjalani, Titah Rigel (2023) Profil Tanah dan Kandungan Nutrisi Umbi Porang (Amorphophallus muelleri Blume) di Kabupaten Ponorogo. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Kabupaten Ponorogo dikenal sebagai daerah yang mengandalkan sektor pertanian (Agraris) dengan luas lahan perkebunan mencapai 52.457 ha pada tahun 2015 dan jenis komoditas pertanian yang cukup beragam. Salah satunya yaitu tanaman porang yang baru-baru ini muncul sebagai komoditas unggulan di Indonesia. Tanaman porang (Amorphophallus muelleri Blume) merupakan salah satu jenis tanaman umbi-umbian dari anggota famili Araceae yang telah menjadi produk perkebunan utama dengan nilai ekonomi tinggi serta memiliki potensi untuk terus dikembangkan sebagai alternatif pengganti sumber pangan utama di Indonesia. Ditinjau dari aspek agronomi, tanaman porang mampu tumbuh pada daerah yang minim air dan dengan naungan yang cukup. Oleh karena itu, budidaya porang dapat menjadi alternatif pemanfaatan lahan yang sebelumnya tidak produktif berubah menjadi lahan dengan nilai ekonomi tinggi. Pemahaman yang lebih baik tentang profil tanah dan kandungan nutrisi umbi akan meningkatkan hasil produktivitas tanaman porang di Ponorogo. Penelitian ini bersifat deskriptif kualitatif dengan membandingkan profil tanah serta kandungan nutrisi umbi di perkebunan porang yang berbeda di Kabupaten Ponorogo. Hasil yang didapatkan berupa karakteristik secara fisika tanah pada ketiga lokasi penelitian tergolong ke dalam kategori jenis tanah lempung (loam) dan memiliki karakteristik kimia yang relatif sama. Sedangkan analisis secara karakteristik biologi, ketiga lokasi penelitian didominasi oleh 33 filum bakteri tanah dimana yang paling dominan adalah Proteobacteria dan didominasi oleh bakteri dari genus Bacillus. Hal ini sejalan dengan kandungan proksimat umbi dan kandungan glukomanan antara ketiga lokasi sampel perkebunan porang yang relatif sama yang menunjukkan adanya perbedaan signifikan. Umbi porang lokasi N menunjukkan hasil kandungan glukomanan tertinggi yaitu 20,38 ± 0,97%. Namun demikian dengan hasil kadar kalsium oksalat dari ketiga lokasi sampel menunjukkan kadar yang tidak berbeda signifikan antar ketiga lokasi.
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Ponorogo district is known as an area that relies on the agricultural sector (agrarian) with a plantation area of 52,457 ha in 2015 and quite a variety of agricultural commodities. One of them is the porang plant which has recently emerged as a leading commodity in Indonesia. The porang plant (Amorphophallus muelleri Blume) is a type of tuber plant belonging to the Araceae family which has become the main plantation product with high economic value and has the potential to continue to be developed as an alternative to the main food source in Indonesia. In terms of agronomic aspects, porang plants are able to grow in areas with minimal water and with sufficient shade. Therefore, porang cultivation can be an alternative land use that was previously unproductive to turn into land with high economic value. A better understanding of the soil profile and nutrient content of tubers will increase the productivity yield of porang plants in Ponorogo. This research is descriptive qualitative by comparing the soil profile and the nutrient content of tubers in different porang plantations in Ponorogo Regency. The results obtained were in the form of physical characteristics of the soil at the three study locations belonging to the category of loam types and having relatively the same chemical characteristics. While the analysis of biological characteristics, the three study sites were dominated by 33 phyla of soil bacteria where the most dominant was Proteobacteria and was dominated by bacteria from the genus Bacillus. This is in line with the tuber proximate content and glucomannan content between the three porang plantation sample locations which were relatively the same which indicated a significant difference. Location N of porang tubers showed the highest glucomannan content, namely 20.38 ± 0.97%. However, the results of calcium oxalate levels from the three sample locations showed levels that were not significantly different between the three locations.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Glukomanan, Metagenomik, Porang, Profil Tanah, Proksimat, Glucomannan, Metagenomics, Porang, Soil Profile, Proximate
Subjects:	Q Science > QH Biology > QH301 Biology Q Science > QP Physiology > QP624 Molecular biology. T Technology > TP Chemical technology > TP248.27.P55 Plant biotechnology.
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Biology > 46101-(S2) Master Thesis
Depositing User:	Titah Rigel Anjalani
Date Deposited:	11 Sep 2023 03:20
Last Modified:	11 Sep 2023 03:20
URI:	http://repository.its.ac.id/id/eprint/103895

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