Pengaruh Dosis Pupuk NPK pada Media yang Diberi Briket Tanah Gambut terhadap Pertumbuhan Mangga (Mangifera indica L.) di DTA Danau Toba di Desa Sarimarrihit, Kecamatan Sianjur Mula Mula, Kabupaten Samosir

Abstract

Sarimarrihit village has Litosol and Regosol soil types which are sensitive to erosion. Sarimarrihit village is included in the Lake Toba environment, which has an uneven topography with deep valleys and hills, which is one factor that does not support the existence of settlements in these conditions. The purpose of this study was to obtain the effect of the right dose of NPK fertilizer on media given peat soil briquettes on the growth of mango (Mangifera indica L.) seedlings. The design used was a non-factorial Randomized Block Design (RAK). Where NPK fertilizer was carried out 6 treatments with 5 replications, namely without using NPK fertilizer (P0), Dose of NPK fertilizer 50 g (P1), Dose of NPK fertilizer 100 g (P2), Dose of NPK fertilizer 150 g (P3), Dose of NPK fertilizer 200 g (P4), 250 g of NPK fertilizer (P5) and 300 g of NPK fertilizer (P6). The results of the study on the growth of mango seedlings showed optimal results were found at a dose of 100 g of NPK fertilizer (P2) from other doses