Pak Choi Growth and Yield Response to NPK Fertilizer Formulations in Controlled Irrigation

Ardy Kisworo, Dharend Lingga Wibisana, Okti Purwaningsih, Nuning Dita Wardaniyati

Abstract

This research aims to evaluate the effect of various NPK fertilizer formulations on the growth and yield of pak choi in sandy media. The research used a single-factor Completely Randomized Design (CRD) with five treatments: no fertilizer, NPK 20-10-10, NPK 16-16-16, NPK 15-09-20, and NPK 13-11-21, each replicated three times. The observed parameters included plant height, leaf number, root length, fresh weight, dry weight, and yield per unit area. The results showed that the NPK treatment had a very strong effect on all of the parameters. NPK 20-10-10 provided the best growth with a plant height of 25.43 cm, 20.67 leaves, a fresh weight of 270.57 g, and a dry weight of 21.03 g. NPK 16-16-16 gave the longest root length, which was 53.00 cm. The highest yield was achieved with NPK 20-10-10, at 12.18 kg per 4.05 m², equivalent to 30.06 tons ha-1, which was significantly higher than the control (4.08 tons ha-1). These results indicate that formulations with a higher proportion of nitrogen are more effective in increasing the growth and yield of pak choi on sandy media.

Keywords

Fertilizer formulation; Growth and yield; Measured irrigation; Pak choi; Sandy soil

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References

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DOI: https://doi.org/10.20961/agrotechresj.v10i1.111233

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