Perbaikan Sifat Kimia Tanah Tercekam Salinitas (NaCl) dengan Aplikasi Biochar Terimobilisasi Mikroba untuk Meningkatkan Pertumbuhan Tanaman Bayam Merah

Puspita, Nofia wahyu (2026) Perbaikan Sifat Kimia Tanah Tercekam Salinitas (NaCl) dengan Aplikasi Biochar Terimobilisasi Mikroba untuk Meningkatkan Pertumbuhan Tanaman Bayam Merah. Undergraduate thesis, UPN Veteran Jawa Timur.

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Abstract

Soil salinity causes a decrease in nutrient availability and inhibits plant growth. Red amaranth is a salinity-tolerant plant; however, at certain salinity levels, amaranth growth experiences significant decline. This study aims to examine the effect of microbial-immobilized biochar in improving the chemical properties of saline-stressed soil and enhancing red amaranth growth. The research was conducted in the greenhouse of the Faculty of Agriculture, UPN "Veteran" East Java, using a factorial Completely Randomized Design with two factors: microbialimmobilized biochar dosage (0, 15, 30, and 45 tons.ha⁻¹) and NaCl salinity stress (0, 4, 6, and 8 mS.cm⁻¹), replicated 3 times, resulting in 48 experimental units. The results showed that microbial-immobilized biochar application at a dosage of 45 tons.ha⁻¹ (B3) was less effective in improving chemical properties; however, for the available phosphorus parameter, biochar dosage of 45 tons.ha⁻¹ (B3) showed the best results with a value of 91.40 ppm at 42 DAP (days after planting). Microbial-immobilized biochar dosage of 15 tons.ha⁻¹ (B1) was the best dosage for improving most soil chemical property parameters. Application of microbial immobilized biochar at B3 dosage (45 tons.ha⁻¹) on soil with low salinity (N1) provided the best red amaranth growth results. Keywords: Salinity stress, Soil chemical properties, Biochar, Salt-tolerant plants

Item Type:

Thesis (Undergraduate)

Contributors:

Contribution	Contributors	NIDN/NIDK	Email
Thesis advisor	Priyadarshini, Rossyda	NIDN0019036710	rossyda_p@upnjatim.ac.id
Thesis advisor	Wijayanti, Fitri	NIDN0009039401	fitri.wijayanti.agro@upnjatim.ac.id

Subjects:

S Agriculture > S Agriculture (General) > S590-599.9 Soils. Soil science
S Agriculture > S Agriculture (General) > S631-667 Fertilizers and Improvement of the soil

Divisions:

Faculty of Agriculture > Departement of Agritechnology

Depositing User:

Nofia Wahyu Puspita

Date Deposited:

27 Jan 2026 07:22

Last Modified:

27 Jan 2026 07:34

URI:

https://repository.upnjatim.ac.id/id/eprint/49121