Effects of pineapple peel liquid organic fertilizer and quail manure on the growth and yield of Peanut Plants (Arachis hypogaea L.)
Keywords:
Peanut, Pineapple peel liquid, Organic fertilizer Fourth Organic fertilizationAbstract
Peanuts (Arachis hypogaea L.) are important food legumes whose productivity is strongly influenced by soil fertility, nutrient availability, and the balance between vegetative and generative growth. This study evaluated the effects of pineapple peel liquid organic fertilizer (POC) and quail manure on peanut growth and yield. The experiment was conducted at the Al Azhar University Experimental Farm, Medan, from April to August 2025 using a factorial randomized block design with two factors: pineapple peel POC at 0, 35 and 70 ml L-1 and quail manure at 0, 1, 2, and 3 kg plot-1, with three replications. Observed parameters included plant height, stem diameter, number of pods per plant, and 100-seed weight. Analysis of variance followed by Duncan's Multiple Range Test showed that pineapple peel POC and quail manure significantly increased plant height and 100-seed weight, but did not significantly affect stem diameter or the number of pods per plant. No significant interaction was detected for any parameter. The highest plant height was recorded at N2 (58.31 cm) and P3 (59.28 cm), while the highest 100-seed weight was recorded at N2 (70.50 g) and P2 (68.22 g). These findings indicate that pineapple peel POC and quail manure can improve peanut performance mainly by supporting vegetative growth and seed filling, although their effects were independent rather than synergistic.
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