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Yield, Seed Protein Content and Percentage Stem Sugar in Ratoon Sorghum Varieties with Liquid Organic Fertilizer

Department of Agronomy, Graduate School, Faculty of Agriculture, Universitas Sebelas Maret (UNS), Jl. Ir.
Sutami 36A, Kentingan, Surakarta, 57126, Central Java, Indonesia
*(e-mail:; Mobile: +628 13929 83443)
(Received: May 20, 2022; Accepted: June 28, 2022)


Sorghum belongs to multipurpose cereal with high protein content and can potentially be an alternative
food. This plant could be cultivated using ratoon system. The advantages of ratoon system are
shorter harvesting time, less need for water and lower production cost. The application of liquid
organic fertilizer (LOF) functions to supply nutrition to the plant to get optimum yield. The objective
of research was to get sorghum variety in the first ratoon with LOF dose providing high yield, seed
protein content and percentage stem sugar. The result showed that there was an interaction between
treatments or factors, indicating the highest panicle weight per plant and seed weight per plant in
Numbu variety with LOF dose of 6 l/ha. Highest seed protein content was obtained in Suri 3 variety
with LOF dose of 9 l/ha, and highest stem sap sugar content in Kawali variety with LOF dose of 6 l/
Key words : Nutrition, alternative food, cereal, multipurpose plant