SYNERGISTIC BANANA PSEUDOSTEM COMPOST AND MKP ENHANCE ROSE TOMATO PRODUCTIVITY

Nadia Putri Ramadan; Dedi Kurniawan; Ahmad Nadhira

doi:10.58432/cs4sjc39

Authors

Nadia Putri Ramadan Tjut Nyak Dhien University Author
Dedi Kurniawan Tjut Nyak Dhien University Author
Ahmad Nadhira Tjut Nyak Dhien University Author

DOI:

https://doi.org/10.58432/cs4sjc39

Keywords:

banana pseudostem compost, monopotassium phosphate, integrated nutrient management, rose tomato, soluble solids

Abstract

Integrating recycled organic amendments with rapidly available mineral nutrients may improve tomato productivity while valorizing agricultural residues. This study evaluated banana pseudostem compost (BPC) and monopotassium phosphate (MKP), individually and in combination, on the growth, yield, and fruit soluble solids of Mawar (rose) tomato (Solanum lycopersicum L.). A 3 x 3 factorial randomized complete block design with three replications was used. BPC was applied at 0, 1, and 2 kg plant-1 (K0, K1, K2), while MKP was applied at 0, 2, and 3 g plant-1 (M0, M1, M2). Plant height, stem diameter, branch number, flowering age, fruit number, fruit weight, and total soluble solids (degrees Brix) were analyzed by factorial ANOVA followed by Duncan's Multiple Range Test at 5%. BPC significantly improved plant height and stem diameter at 2-8 weeks after planting (WAP), branches at 4 WAP, fruit number, fruit weight, and degrees Brix. MKP significantly increased plant height at 2-8 WAP, stem diameter at 2 and 6 WAP, fruit number, fruit weight, and degrees Brix. The BPC x MKP interaction was significant for plant height at 6 WAP and fruit weight per plant. K2M2 produced the greatest 6-WAP height (54.22 cm) and fruit weight (104.56 g plant-1). These results indicate a trait-specific synergy between compost-based residue recycling and targeted P-K nutrition for rose tomato production.

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