RESPON PERTUMBUHAN DAN HASIL TANAMAN TERUNG UNGU (Solanum melongena L.) TERHADAP PEMBERIAN BIOCHAR TEMPURUNG KELAPA DAN PUPUK NPK CAIR

Sharis Hidayat, Rahmah Hayati

Abstract


This study aimed to determine the growth response and yield of eggplant (Solanum melongena L.) as affected by the application of coconut shell biochar and liquid NPK fertilizer. The research was conducted from February 23 to June 1, 2025, at the Agrotourism Research Garden in Blang Bintang, Aceh Besar, Aceh, using a factorial Randomized Complete Block Design (RCBD) with two factors: coconut shell biochar (4 levels) and liquid NPK fertilizer (4 levels). A total of 48 experimental units with 2 plants per unit resulted in 96 experimental samples.Observed parameters included plant height, stem diameter, number of fruits, fresh fruit weight, and fruit length. The results showed that coconut shell biochar had a significant effect on plant height at 30 days after transplanting (DAT), number of fruits, and fruit length, but had no significant effect on plant height at 15 and 45 DAT, stem diameter at all observation times, and fresh fruit weight. The best treatment was B3 (75 g biochar per polybag).Liquid NPK fertilizer had a highly significant effect on plant height at 30 DAT, number of fruits, and fruit length, but no significant effect on plant height at 15 and 45 DAT, stem diameter, and fresh fruit weight. The best treatment was N1 (2 ml/L). No significant interaction was found between coconut shell biochar and liquid NPK fertilizer for all observed parameters. These results indicate that the separate application of biochar and liquid NPK can improve certain growth and yield aspects of eggplant

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