SUCCESS RATE OF BIOCHAR AND COW MANURE ON REVEGETATION OF SHOREA PARVIFOLIA PLANTS IN POST-MINING LAND

Abstract

On post-mining soils, revegetation efforts are very difficult; only 49.74 percent of local plants survive. A native plant species called Shorea parvifolia dominates in the original forest of the study site at PT ABB. The strategy to improve the quality of post-mining soil as a planting medium for Shorea parvifolia seeds is the use of biochar as an ameliorant. This study aims to analyze the Success Rate of Biochar and Cow Manure on the Revegetation Success of Shorea Parvifolia Plants in Postmining Land. A completely randomized design (RBD) approach was used in this study to determine the percentage of biochar and manure that would survive and be suitable as soil planting media on post-mining land and in the natural habitat of Shorea parvifolia. The research was conducted in PT ABB's nursery and studied five levels of post-mining soil treatment, manure and biochar mixture, namely (B1) 90%+10%+0%; (B2) 80%+15%+5%; (B3) 70%+20%+10%; (B4) 60%+25%+15%; and (B5) 50%+30%+20%, with untreated post-mining soil (B0) and forest soil from Shorea parvifolia habitat as controls (B0+). In the study unit, 97.3% of the seeds survived. The growth of seedling stem diameter at treatment level B2 is a research variable that is significantly different from the control (B0) with a p value of 0.005, but not significantly different from other growth variables.

Keywords

• biomass
• biochar
• manure
• post-mining
• revegetation