Pengaruh Kolarhino Terhadap Populasi Cacing Tanah Di Bawah Tegakan Tanaman …

ABSTRACT Addition of Kolarhino can increase the soil’s fertility but not yet known about effect of adding kolarhino towards earthworm population under palm oil plant stand. The research was carried out at PTPN V Sei Galuh Gardens, Kampar Regency and the Laboratory of Soil Science, Faculty of Agriculture, Riau University, Jalan Bina Widya Km 12.5 Simpang Baru Village, Tampan District Pekanbar…