The Effect of Chicken Manure and NPK Grower Fertilizer on the Growth and Yield of Purple Eggplant (Solanum melongena L.) Laguna F1 Variety
Marisi Napitupulu, Abdul Fatah, Reza Handayani, Noor Jannah, Helda Syahfari, A. Syamad Ramayana
Asian Journal of Soil Science and Plant Nutrition · pp. 588–595 · Published 30 Dec 2025
10.9734/ajsspn/2025/v11i4629Abstract
The purpose of this experiment was to determine the effect of Chicken Manure and NPK Grower fertilizer and their interaction on the growth and yield of the Laguna F1 purple eggplant variety, and to obtain the appropriate dosage of Chicken Manure and NPK Grower fertilizer for the growth and yield of the Laguna F1 purple eggplant variety. The experiment was conducted from January to April 2025 at Jalan BatuCermin, RT 05, Gang Harapan Jaya, Sempaja Utara Village, Samarinda Utara District, Samarinda City, East Kalimantan. The study used a factorial experiment in a Completely Randomized Design (CRD), which was repeated 4 times consisting of 2 treatment factors, namely the first factor was the dosage of chicken manure (A) consisting of 4 levels: no manure (a0), 75 g/polybag or equivalent to 15 tons/ha (a1), 100 g/polybag or equivalent to 20 tons/ha (a2), and 125 g/polybag or equivalent to 25 tons/ha (a3). The second factor was the dosage of NPK Grower (N), consisting of 4 levels: without NPK fertilizer (a0), 1.75 g/plant or equivalent to 350 kg/ha (a1), 2.00 g/plant or equivalent to 400 kg/ha (a2), and 2.25 g/plant or equivalent to 450 kg/ha (a3).The results of the experiment showed that (1) chicken manure treatment had a very significant effect on plant height at 20 and 40 days after planting, plant age at flowering and harvest, number of fruits per plant, fruit length, and fruit weight per plant. The highest fruit weight per plant was produced in the 125 g/polybag (a3) treatment, namely 883.56 g, while the lowest was in the treatment without chicken manure (a0) namely 595.68 g; (2) NPK Mutiara Grower fertilizer treatment had a significant to very significant effect on plant height at 20 and 40 days after planting, plant age at flowering and harvest, number of fruits per plant, fruit length and fruit weight per plant. The highest fruit weight per plant was produced in the 2.00 g/polybag (n2) treatment, namely 781.18 g, while the lowest was in the treatment without NPK Grower fertilizer (n0), namely 680.31 g; and (3) the interaction between chicken manure and NPK Grower fertilizer treatments had no significant effect on the growth and yield of purple eggplant plants.
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