Evaluasi Perlakuan Benih dan Penggunaan Amelioran terhadap Pertumbuhan Mucuna bracteata di Lahan Gambut

Abstract

Penelitian bertujuan mengevaluasi pengaruh perlakuan benih sebelum tanam dan penggunaan amelioran terhadap pertumbuhan M. bracteata di lahan gambut. Penelitian dilaksanakan pada Februari sampai Mei 2026 di Mandah Estate, PT Bumireksa Nusa Sejati, Kabupaten Indragiri Hilir, Provinsi Riau. Penelitian terdiri atas fase pembibitan dan fase penanaman di lapangan. Fase pembibitan menggunakan dua jenis perendaman (A), tiga lama perendaman (R), dan tiga perlakuan amelioran (B), sedangkan fase penanaman di lapangan menggunakan tiga perlakuan amelioran (L). Hasil penelitian menunjukkan bahwa jenis (A) dan lama perendaman (R) benih berpengaruh terhadap persentase tumbuh dan pertumbuhan awal tanaman, sedangkan amelioran tidak berpengaruh nyata pada fase pembibitan. Pada fase penanaman di lapangan, amelioran (L) tidak berpengaruh terhadap tinggi tanaman, tetapi berpengaruh terhadap jumlah daun dan daya tutupan tanaman. Perlakuan 50% tanah + 50% solid memberikan respons pertumbuhan vegetatif terbaik sehingga berpotensi digunakan sebagai amelioran pada budidaya M. bracteata di lahan gambut.

This study aimed to evaluate the effects of pre-planting seed treatment and the application of soil amendments on the growth of Mucuna bracteata cultivated on peatland. The research was conducted from February to May 2026 at Mandah Estate, PT Bumireksa Nusa Sejati, Indragiri Hilir Regency, Riau Province. The study consisted of two phases: a nursery phase and a field planting phase. The nursery phase involved two types of seed soaking treatments (A), three soaking durations (R), and three soil amendment treatments (B), while the field planting phase involved three soil amendment treatments (L). The results showed that both the type of seed soaking treatment (A) and the soaking duration (R) significantly affected seed germination percentage and early plant growth, whereas the soil amendments had no significant effect during the nursery phase. In the field planting phase, the soil amendment treatments (L) did not significantly affect plant height but significantly influenced the number of leaves and ground cover percentage. The application of a growing medium consisting of 50% soil and 50% oil palm solid waste (solid) produced the best vegetative growth response, indicating its potential as an effective soil amendment for the cultivation of M. bracteata on peatland.