Fertillizer composition comprising natual rock powder composed biotite, feldspar, quartz, chlorite and hornablende

摘要

Fertilizer composition containing natural rock powders is provided to inhibit soil acidification, emit radiation useful to eliminate damage caused by blight and harmful insects without additional spray of chemicals by comprising admixture of biotite, feldspar, quartz, chlorite and hornblende in relative ratios as the natural rock powders, as well as typical fertilizer ingredients. The fertilizer composition comprises 50 to 100wt.% of powder obtained by milling natural rock including biotite, feldspar, quartz, chlorite and hornblende in relative ratios of 2-3 : 2-2.5 : 2-3 : 1.1-1.5 : 0.5-1, based on total weight of the fertilizer ingredients. The natural rock powder necessarily includes 0.25% of calcium(Ca), 0.45% of iron(Fe), 1.2% of magnesium(Mg), 0.07% of manganese(Mn), 19.5ppm of copper(Cu) and 2ppm of molybdenum(Mo) as inorganic ingredients.