Influence of Soil Organic Amendment Mixtures and Rhizobacterial (PGPR) Inoculation on the Productivity of Cucumber Plants

Rasti Amalia, bakhtiar Ibrahim, Abdullah Abdullah

Abstract


Cucumber (Cucumis sativus L.) is an important horticultural crop in Indonesia, but production declines in South Sulawesi have been linked to suboptimal cultivation and limited nutrients, indicating a need for better planting media and biological inputs. This study evaluated soil–organic amendment mixtures and plant growth-promoting rhizobacteria (PGPR) inoculation on cucumber growth and yield. Conducted from April to June 2025 in Libureng Hamlet, Selli Village, Bengo District, Bone Regency, the experiment used a randomized block design with five planting media compositions and three natural PGPR sources, giving 15 combinations with three replications (45 units; 135 plants). Planting media composition significantly affected plant height, leaf number at 28 days after planting, and key yield components, whereas PGPR type and the interaction were generally not significant. M4 gave the highest plant height (147.92 cm), leaf number (31.59), fruit number (10.22 fruits/plant), and fruit weight (425.78 g/plant), while M3 gave the lowest values. Fruit length was highest in M1 (23.09 cm), and fruit diameter in M2 (50.08 mm). Flowering time and production per hectare were not significantly affected. Overall, chicken manure-based media, especially with cocopeat and rice husk charcoal, improved productivity, while PGPR showed mainly non-significant positive trends, often favoring elephant grass-root PGPR, rather than a primary driver of yield under conditions.

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References


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DOI: https://doi.org/10.33096/agrogenesis.v2i1.1055

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ISSN: 3090-2657 Published by: Agrotechnology Study Program, Faculty of Agriculture, Universitas Muslim Indonesia, Website: fp.umi.ac.id, Official Website: umi.ac.id, Email: agrogenesis@umi.ac.id

Editorial Address: Faculty of Agriculture and Mine Land Bioremediation, Universitas Muslim Indonesia Jl. Urip Sumoharjo No. km.5, Panaikang, Panakkukang District, Makassar City, South Sulawesi 90231, Indonesia