The effect of limestone dust and different doses of mycorrhizal biological fertilizer on the growth of coffee seedlings in former quarry limestone mines

Reclamation (revegetation) activities must be carried out upon the completion of mining. Limestone dust can affect physical, chemical, and biological properties soil. To increase growth rate non-wood product species such as coffee, fertilizers mycorrhiza are introduced to reclamation site. The goal this study is examine effects limestone covering former mines different doses mycorrhizal on coffee seedlings. research was conducted using Randomized Complete Block Design method. Research areas were divided into groups/blocks consisting soil without dust, dust-covered 0-2.5 cm, 0-5 cm. groups treated with addition 10 g, 15 g 20 five replications each. NPK inorganic fertilizer given every one month all treatments. parameters observed from seedlings plant height, Stem diameter, number leaves. Based results, influenced conditions silt, clay, pH, organic C, bulk density, C/N ratio. In addition, affected height leaves compared those grown in an area dust. Differences amount biologic significant (p<0.05) tended for diameter However, difference dose has been shown significantly decrease