Increasing Red Chili Plants (Capsicum annuum L) Growth Rate by Administering Photosynthetic Bacteria (PSB) Fertilizer and NPK Fertilizer

Rahman Syahputra Siregar; Ika Ayu Putri Septyani; Dini Hariyati Adam; Yudi Triyanto

doi:10.36378/juatika.v6i2.3640

Rahman Syahputra Siregar
Ika Ayu Putri Septyani
Dini Hariyati Adam
Yudi Triyanto

DOI: https://doi.org/10.36378/juatika.v6i2.3640

Keywords: photosynthetic bacteria (PSB), NPK, red chilies, Fertilization

Abstract

Red chili is a significant horticultural crop in Indonesia. The goal is to determine how photosynthetic bacterial fertilizer (PSB) and NPK fertilizer impact the growth rates of plants. This research took place from March 2024 to June 2024. This study employed a quantitative research method, specifically using a factorial randomized block design (RAK) with an intensity factor (I) (0, 200, 300, and 400 ml/plant) and a fertilizer type factor (P) consisting of 2 factors. Specifically, there were 8 treatments with 3 replications each, resulting in a total of 24 experiments involving 120 plants. These treatments included doses of 0 and 10 grams per plant. We made observations when the red chili plants were between 1 and 7 weeks after planting (WAP), focusing on parameters such as plant height, number of leaves, and growth rate. Data was analyzed using analysis of variance (ANOVA) to identify significant differences, followed by a 5% level test (DMRT). According to the results of additional tests at 7 weeks after planting (WAP), it was found that the combination of photosynthetic bacterial fertilizer (PSB) and NPK fertilizer had a positive impact on plant height. The best results were observed in plants treated with 300 ml of PSB fertilizer and 10 g of NPK fertilizer per plant, with an average height of 57.80 cm and an average of 70.67 leaves per plant. The combination of fertilizers, with P1I2 treatment being the most effective, is capable of enhancing the growth and development of red chili plants.

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