RESPONSE OF OIL PALM SEEDLINGS TO TRICHODERMA KONINGII AND SP-36

Rendi Aditya; Razali Razali; Octanina Sari Br. Sijabat

doi:10.58432/mbz7ds13

Authors

Rendi Aditya Tjut Nyak Dhien University Author
Razali Razali Tjut Nyak Dhien University Author
Octanina Sari Br. Sijabat Tjut Nyak Dhien University Author

DOI:

https://doi.org/10.58432/mbz7ds13

Keywords:

oil palm, Trichoderma koningii, SP-36, pre-nursery, seedling growth

Abstract

This study evaluated the effects of Trichoderma koningii and SP-36 fertilizer, as well as their interaction, on the growth of oil palm (Elaeis guineensis Jacq.) seedlings during the pre-nursery stage. An experiment was conducted in Medan, North Sumatra, from November 2025 to February 2026 using a 3 × 3 factorial Randomized Complete Block Design with three replications. The Trichoderma factor consisted of 0, 10, and 20 g/polybag, while SP-36 consisted of 0, 10, and 20 g/polybag. Growth variables were plant height, stem diameter, number of leaves, and leaf area, observed from 5 to 12 weeks after planting. Trichoderma significantly affected leaf number at 9 and 10 weeks and leaf area at 11 and 12 weeks, with the 20 g/polybag treatment generally producing the highest means. SP-36 significantly affected leaf number at 10–12 weeks and leaf area at 11–12 weeks, with 20 g/polybag giving the highest factor means. The interaction between Trichoderma and SP-36 was not significant for all observed variables. These findings indicate that each factor contributed independently to later vegetative development, whereas their combination did not produce a statistically detectable interaction under the experimental conditions.

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