JURNAL ILMU PERTANIAN
Vol 29, No 2 (2026)

Effect of Sawdust and Goat Manure Rate on Sweet Potato Growth and Yield in Sandy Soils

Saijo Saijo (Universitas Muhammadiyah Palangkaraya)
Noor Ivansyah (Agrotechnology Study Program, Faculty of Agriculture, University of Muhammadiyah Palangka Raya)
Hariyadi Hariyadi (Agrotechnology Study Program, Faculty of Agriculture, University of Muhammadiyah Palangka Raya)



Article Info

Publish Date
29 Oct 2026

Abstract

Sweet potato is an important carbohydrate source in Indonesia, alongside rice, maize, and cassava. It can contribute to meeting basic food needs, reducing dependence on rice, and supporting food diversification. This study aimed to evaluate the effects of sawdust and goat manure rates, as well as their interaction, on the growth and yield of sweet potato grown in sandy soil. The experiment was conducted using a Randomized Complete Block Design (RCBD) with two factors. The first factor was sawdust application at three rates: 12, 15, and 18 t ha⁻¹. The second factor was goat manure application at three rates: 15, 20, and 25 t ha⁻¹. The results showed that sawdust and goat manure treatments affected several observed parameters, including stem length and number of leaves at 112 days after planting (DAP), number of sweet potato tubers per plant, tuber diameter, fresh tuber weight per plant, and harvest index. The highest effective rates were 18 t ha⁻¹ for sawdust and 25 t ha⁻¹ for goat manure, resulting in fresh tuber weights of 734.21 g and 543.98 g, respectively.

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Journal Info

Abbrev

AGRIUM

Publisher

Subject

Agriculture, Biological Sciences & Forestry

Description

Jurnal Ilmu Pertanian "AGRIUM" adalah publikasi ilmiah yang diterbitkan dua kali dalam setahun untuk mengkomunikasikan hasil-hasil penelitian ataupun review yang dirancang sebagai sarana komunikasi untuk para ilmuwan/peneliti yang terkait dengan bidang ...