Manufacture of Npk Liquid Fertilizer From Market Waste and its Utilization in Prei Onion Plants (allium ampeloprasum var. Porrum l. J. Gayvar. Porrum l. J. Gay) and Cayenne Pepper (capsicum frustescens l.) in Singgalang - Tanah Datar Regency and Pauh Duo - Razak, Abdul; M, Des; Wirdaningsih, Wirdaningsih; Yogica, Relsas; Dwi Nugraha, Fitra Arya (Science and Environmental Journal for Postgraduate, 2021)