Amelioration of mine soil is challenging because of the lack of biologically active organic matter. The study was aimed to recycle yard waste into compost and biochar and to use them to reclaim mine soil. Biochar prepared at 350 °C showed the highest stable organic matter yield index and was used for the experiments. Lady’s finger was grown on mine soil amended with biochar (1%–5%), compost (2%–10%), and biochar-compost mixtures (2%–10%). Mine soil pH increased in all treatments. Mine soil dehydrogenase activity (42%–224%), microbial biomass carbon (4%–257%), and hydrolase activity (3%–230%) increased by combined application of biochar and compost. Lady’s finger plant height, biomass, and fruit yield were superior in biochar–compost mixtures compared to biochar and compost alone treatment. Thus the use of compost along with biochar could be recommended for reclamation of mine soil.

由于缺乏具有生物活性的有机质，因此改善矿山土壤具有挑战性。该研究旨在将庭院垃圾回收成堆肥和生物炭，并利用它们来开垦矿山土壤。在 350 ℃制备的生物炭显示出最高的稳定有机物产率指数，并用于实验。Lady's finger 生长在用生物炭 (1%–5%)、堆肥 (2%–10%) 和生物炭-堆肥混合物 (2%–10%) 改良的矿土上。在所有处理中，矿山土壤的 pH 值都增加了。生物炭和堆肥的联合应用提高了矿山土壤脱氢酶活性（42%–224%）、微生物量碳（4%–257%）和水解酶活性（3%–230%）。与生物炭和堆肥单独处理相比，生物炭-堆肥混合物处理的女士手指植物高度、生物量和果实产量均优于生物炭和堆肥。