JURNAL GALUNG TROPIKA
Vol 15 No 1 (2026)

Pertumbuhan dan Hasil Ubi Jalar (Ipomoea Batatas L.) pada Perlakuan Jarak Tanam dan Frekuensi Pemberian Pupuk Hayati

Hapsoh (Universitas Riau)
Isna Rahma Dini (Universitas Riau)
Alif Hadi Ariansyah (Universitas Riau)



Article Info

Publish Date
30 Apr 2026

Abstract

Sweet potatoes (Ipomoea batatas L.) are an important source of carbohydrates in Indonesia’s food diversification program. Sweet potato production declined from 2020 to 2021, in line with a decrease in harvested area. One effort to increase the productivity of this crop is through optimal planting distance and the use of biofertilizers containing bacteria that play a role in decomposing organic matter and providing nutrients for the plants. This study aims to determine the effect of the combination of planting distance and biofertilizer application frequency on the growth and yield of sweet potato plants. The study was conducted experimentally using a Completely Randomized Design (CRD) with six treatment combinations of planting distances (75 x 20 cm, 25 cm, and 30 cm) and biofertilizer application frequencies (3 and 4 times), each at 10 ml, with three replications. Analysis results showed that a planting distance of 75 x 30 cm with 3 or 4 applications of biofertilizer optimally increased the number of branches, fresh canopy weight, number and diameter of tubers, and the sweet potato harvest index.

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Journal Info

Abbrev

jgt

Publisher

Subject

Agriculture, Biological Sciences & Forestry

Description

Jurnal Galung Tropika dengan nomor p-ISSN 2302-4178 (cetak) dan e-ISSN 2407-6279 (online) adalah jurnal ilmiah yang menerbitkan hasil penelitian di bidang Pertanian, Peternakan, Perikanan, dan Biologi Tanaman. Serta menyajikan informasi hasil penelitian dan artikel ilmiah untuk pembangunan pertanian ...