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VARIASI PEMBERIAN PERSENTASE BIOCHAR SEKAM PADI PADA TANAH ULTISOL SEBAGAI MEDIA TANAM BAYAM (AMARANTHUS SP.)

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The limitations of the physical properties of ultisol soil, particularly porosity and low water-holding capacity, are one of the main constraints in cultivating vegetable crops, such as spinach (Amaranthus sp.). Efforts to improve these conditions can be carried out through the application of rice husk Biochar as an ameliorant material and by regulating the appropriate watering frequency to increase water availability in the soil. The purpose of this study is to determine the effect of rice husk Biochar application and irrigation frequency on the physical properties of ultisol soil as well as the growth and yield of spinach plants. This research was conducted from February to March 2026, at the Green House and Laboratory of the Agricultural Engineering Study Program, Faculty of Agriculture, Sriwijaya University. The research method used a Factorial Randomized Block Design (RAK) with treatments consisting of rice husk Biochar and ultisol soil composition with three levels of treatment, each repeated three times. The levels of treatment tested were: P1 (100% ultisol), P2 (50% ultisol : 50% rice husk Biochar), P3 (75% rice husk Biochar : 25% ultisol). The results of the study showed that the application of Biochar in treatment P3 (75% rice husk Biochar : 25% ultisol) was able to improve the physical properties of ultisol soil and promote the growth of spinach plants. The watering frequency management T1 (twice a day) showed better water availability, making plant growth more optimal compared to T2 (once a day). The combination of treatment P3 with watering frequency T1 provided the best results in supporting spinach plant growth. This indicates that the use of rice husk Biochar at the dosage (P3) balanced with proper watering management (T1) can be a solution to improve the quality of ultisol soil while supporting increased spinach crop yield (Amaranthus sp.).

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Detail Information

Series Title

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Call Number

T2004112026

Publisher

Indralaya : Prodi Teknik Pertanian, Fakultas Pertanian Universitas Sriwijaya., 2026

Collation

xvii, 71 hlm.; ilus.; tab.; 29 cm.

Language

Indonesia

ISBN/ISSN

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Classification

631.860 7

Content Type

Text

Media Type

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Carrier Type

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Edition

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Subject(s)

Prodi Teknik Pertanian
Pemberian Pupuk Biochar Sekam Padi

Specific Detail Info

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Statement of Responsibility

MI

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